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linux:kea [01.03.2024 18:23. ] djangolinux:kea [02.03.2024 21:50. ] (aktuell) – [DHCPv4 Server] django
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 |< 100% 5% 8% 12% 12% 12% 12% 12% >| |< 100% 5% 8% 12% 12% 12% 12% 12% >|
-^  Subnetz \\ (ID)  ^  Subnetz \\ (Use)  ^ Subnetz Addresse \\ -     ^ Host Address-Range \\ (global Unicast)  ^ Host\\ -       ^ IPv4\\ -           ^ Link-Local-Scope\\ -       ^ Site-Local-Scope\\ -            ^ Global-Scope\\ -                    +^  Subnetz \\ (ID)  ^  Subnetz \\ (Use)  ^ Subnetz Addresse \\ -     ^ Host Address-Range \\ (global Unicast)  ^ Host\\ -       ^ IPv4\\ -         ^ Link-Local-Scope\\ -     ^ Site-Local-Scope\\ -        ^ Global-Scope\\ -                 
-|  **7**            |  Intra             | 2003:a:e0d:760**7**::/64  | 2003:a:e0d:760**7**::                                  |                                                                                                                   +|  **7**            |  Intra             | 2003:a:e0d:760**7**::/64  | 2003:a:e0d:760**7**::                                  |                                                                                                        
-|                                      |                                                                   | //pml010102//  | ''192.168.0.102''  | ''fd00::7:192:168:0:102''  | ''fe80::7:1921:68ff:fe00:102''  | ''2003:a:e0d:7607:1920:168:0:102'' +|                                      |                                                                   | //pml010102//  | ''10.0.10.102''  | ''fd00::7:10:0:10:102''  | ''fe80::7:10:ff:fe10:102''  | ''2003:a:e0d:7607:10:0:10:102'' 
-|                                      |                                                                   | //vml010110//  | ''192.168.0.110''  | ''fd00::7:192:168:0:110''  | ''fe80::7:1921:68ff:fe00:110''  | ''2003:a:e0d:7607:1920:168:0:110''  |+|                                      |                                                                   | //vml010110//  | ''10.0.10.110''  | ''fd00::7:10:0:10:110''  | ''fe80::7:10:ff:fe10:110''  | ''2003:a:e0d:7607:10:0:10:110''  |
  
  
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 ===== Installation ===== ===== Installation =====
 +Die Installation und Konfiguration des DHCP-Servers gestaltet sich relativ einfach. Bei der Installation des Kea-Paketes verwenden wir unter **[[https://archlinux.org/|Arch Linux]]** den Paketmanager **''pacman''**.
 +  - Als User: <code> $ sudo pacman -S kea</code>
 +  - Als Nutzer mit Root-Rechten entsprechend: <code> # pacman -S kea</code>
  
 +===== Paketinhalt =====
 +Was uns das Paket **kea** alles in das System unseres Arch Linux Server gebracht hat, können wir wie folgt abfragen:
 +   # pacman -Qil kea
  
-Die Installation und Konfiguration des DHCP-Servers gestaltet sich relativ einfach.+++++ Paketinhalte | 
 +<code>Name            : kea 
 +Version         : 2.4.1-1 
 +Description     : High-performance, extensible DHCP server engine from ISC, supporting both DHCPv4 and DHCPv6 
 +Architecture    : x86_64 
 +URL             : https://kea.isc.org 
 +Licenses        : MPL2 
 +Groups          : None 
 +Provides        : None 
 +Depends On      : log4cplus  mariadb-libs  openssl  postgresql-libs 
 +Optional Deps   : mariadb: lease information database 
 +                  postgresql: lease information database 
 +                  python: to use kea-shell [installed] 
 +                  krb5: Kerberos support [installed] 
 +                  kea-docs: user and developer documentation 
 +Required By     : None 
 +Optional For    : None 
 +Conflicts With  : None 
 +Replaces        : None 
 +Installed Size  : 22.61 MiB 
 +Packager        : Robin Candau <antiz@archlinux.org> 
 +Build Date      : Tue 28 Nov 2023 05:52:25 PM CET 
 +Install Date    : Sat 02 Mar 2024 08:35:27 PM CET 
 +Install Reason  : Explicitly installed 
 +Install Script  : No 
 +Validated By    : Signature
  
-Zuerst ist via **yum** der dhcp-Server zu installieren+kea /etc/ 
-   # yum install dhcp -y+kea /etc/kea/ 
 +kea /etc/kea/kea-ctrl-agent.conf 
 +kea /etc/kea/kea-dhcp-ddns.conf 
 +kea /etc/kea/kea-dhcp4.conf 
 +kea /etc/kea/kea-dhcp6.conf 
 +kea /etc/kea/keactrl.conf 
 +kea /usr/ 
 +kea /usr/bin/ 
 +kea /usr/bin/kea-admin 
 +kea /usr/bin/kea-ctrl-agent 
 +kea /usr/bin/kea-dhcp-ddns 
 +kea /usr/bin/kea-dhcp4 
 +kea /usr/bin/kea-dhcp6 
 +kea /usr/bin/kea-lfc 
 +kea /usr/bin/kea-msg-compiler 
 +kea /usr/bin/kea-shell 
 +kea /usr/bin/keactrl 
 +kea /usr/bin/perfdhcp 
 +kea /usr/include/ 
 +kea /usr/include/kea/ 
 +kea /usr/include/kea/asiodns/ 
 +kea /usr/include/kea/asiodns/asiodns_messages.h 
 +kea /usr/include/kea/asiodns/io_fetch.h 
 +kea /usr/include/kea/asiodns/logger.h 
 +kea /usr/include/kea/asiolink/ 
 +kea /usr/include/kea/asiolink/addr_utilities.h 
 +kea /usr/include/kea/asiolink/asio_wrapper.h 
 +kea /usr/include/kea/asiolink/asiolink.h 
 +kea /usr/include/kea/asiolink/botan_boost_tls.h 
 +kea /usr/include/kea/asiolink/botan_boost_wrapper.h 
 +kea /usr/include/kea/asiolink/botan_tls.h 
 +kea /usr/include/kea/asiolink/common_tls.h 
 +kea /usr/include/kea/asiolink/crypto_tls.h 
 +kea /usr/include/kea/asiolink/dummy_io_cb.h 
 +kea /usr/include/kea/asiolink/interval_timer.h 
 +kea /usr/include/kea/asiolink/io_acceptor.h 
 +kea /usr/include/kea/asiolink/io_address.h 
 +kea /usr/include/kea/asiolink/io_asio_socket.h 
 +kea /usr/include/kea/asiolink/io_endpoint.h 
 +kea /usr/include/kea/asiolink/io_error.h 
 +kea /usr/include/kea/asiolink/io_service.h 
 +kea /usr/include/kea/asiolink/io_service_signal.h 
 +kea /usr/include/kea/asiolink/io_service_thread_pool.h 
 +kea /usr/include/kea/asiolink/io_socket.h 
 +kea /usr/include/kea/asiolink/openssl_tls.h 
 +kea /usr/include/kea/asiolink/process_spawn.h 
 +kea /usr/include/kea/asiolink/tcp_acceptor.h 
 +kea /usr/include/kea/asiolink/tcp_endpoint.h 
 +kea /usr/include/kea/asiolink/tcp_socket.h 
 +kea /usr/include/kea/asiolink/tls_acceptor.h 
 +kea /usr/include/kea/asiolink/tls_socket.h 
 +kea /usr/include/kea/asiolink/udp_endpoint.h 
 +kea /usr/include/kea/asiolink/udp_socket.h 
 +kea /usr/include/kea/asiolink/unix_domain_socket.h 
 +kea /usr/include/kea/asiolink/unix_domain_socket_acceptor.h 
 +kea /usr/include/kea/asiolink/unix_domain_socket_endpoint.h 
 +kea /usr/include/kea/cc/ 
 +kea /usr/include/kea/cc/base_stamped_element.h 
 +kea /usr/include/kea/cc/cfg_to_element.h 
 +kea /usr/include/kea/cc/command_interpreter.h 
 +kea /usr/include/kea/cc/data.h 
 +kea /usr/include/kea/cc/dhcp_config_error.h 
 +kea /usr/include/kea/cc/element_value.h 
 +kea /usr/include/kea/cc/json_feed.h 
 +kea /usr/include/kea/cc/server_tag.h 
 +kea /usr/include/kea/cc/simple_parser.h 
 +kea /usr/include/kea/cc/stamped_element.h 
 +kea /usr/include/kea/cc/stamped_value.h 
 +kea /usr/include/kea/cc/user_context.h 
 +kea /usr/include/kea/cfgrpt/ 
 +kea /usr/include/kea/cfgrpt/config_report.h 
 +kea /usr/include/kea/config.h 
 +kea /usr/include/kea/config/ 
 +kea /usr/include/kea/config/base_command_mgr.h 
 +kea /usr/include/kea/config/client_connection.h 
 +kea /usr/include/kea/config/cmds_impl.h 
 +kea /usr/include/kea/config/command_mgr.h 
 +kea /usr/include/kea/config/config_log.h 
 +kea /usr/include/kea/config/config_messages.h 
 +kea /usr/include/kea/config/hooked_command_mgr.h 
 +kea /usr/include/kea/config/timeouts.h 
 +kea /usr/include/kea/config_backend/ 
 +kea /usr/include/kea/config_backend/base_config_backend.h 
 +kea /usr/include/kea/config_backend/base_config_backend_mgr.h 
 +kea /usr/include/kea/config_backend/base_config_backend_pool.h 
 +kea /usr/include/kea/config_backend/constants.h 
 +kea /usr/include/kea/cryptolink/ 
 +kea /usr/include/kea/cryptolink/crypto_hash.h 
 +kea /usr/include/kea/cryptolink/crypto_hmac.h 
 +kea /usr/include/kea/cryptolink/crypto_rng.h 
 +kea /usr/include/kea/cryptolink/cryptolink.h 
 +kea /usr/include/kea/cryptolink/openssl_common.h 
 +kea /usr/include/kea/cryptolink/openssl_compat.h 
 +kea /usr/include/kea/d2srv/ 
 +kea /usr/include/kea/d2srv/d2_cfg_mgr.h 
 +kea /usr/include/kea/d2srv/d2_config.h 
 +kea /usr/include/kea/d2srv/d2_log.h 
 +kea /usr/include/kea/d2srv/d2_messages.h 
 +kea /usr/include/kea/d2srv/d2_simple_parser.h 
 +kea /usr/include/kea/database/ 
 +kea /usr/include/kea/database/audit_entry.h 
 +kea /usr/include/kea/database/backend_selector.h 
 +kea /usr/include/kea/database/database_connection.h 
 +kea /usr/include/kea/database/db_exceptions.h 
 +kea /usr/include/kea/database/db_log.h 
 +kea /usr/include/kea/database/db_messages.h 
 +kea /usr/include/kea/database/dbaccess_parser.h 
 +kea /usr/include/kea/database/server.h 
 +kea /usr/include/kea/database/server_collection.h 
 +kea /usr/include/kea/database/server_selector.h 
 +kea /usr/include/kea/dhcp/ 
 +kea /usr/include/kea/dhcp/classify.h 
 +kea /usr/include/kea/dhcp/dhcp4.h 
 +kea /usr/include/kea/dhcp/dhcp6.h 
 +kea /usr/include/kea/dhcp/docsis3_option_defs.h 
 +kea /usr/include/kea/dhcp/duid.h 
 +kea /usr/include/kea/dhcp/duid_factory.h 
 +kea /usr/include/kea/dhcp/hwaddr.h 
 +kea /usr/include/kea/dhcp/iface_mgr.h 
 +kea /usr/include/kea/dhcp/iface_mgr_error_handler.h 
 +kea /usr/include/kea/dhcp/libdhcp++.h 
 +kea /usr/include/kea/dhcp/opaque_data_tuple.h 
 +kea /usr/include/kea/dhcp/option.h 
 +kea /usr/include/kea/dhcp/option4_addrlst.h 
 +kea /usr/include/kea/dhcp/option4_client_fqdn.h 
 +kea /usr/include/kea/dhcp/option6_addrlst.h 
 +kea /usr/include/kea/dhcp/option6_auth.h 
 +kea /usr/include/kea/dhcp/option6_client_fqdn.h 
 +kea /usr/include/kea/dhcp/option6_ia.h 
 +kea /usr/include/kea/dhcp/option6_iaaddr.h 
 +kea /usr/include/kea/dhcp/option6_iaprefix.h 
 +kea /usr/include/kea/dhcp/option6_pdexclude.h 
 +kea /usr/include/kea/dhcp/option6_status_code.h 
 +kea /usr/include/kea/dhcp/option_custom.h 
 +kea /usr/include/kea/dhcp/option_data_types.h 
 +kea /usr/include/kea/dhcp/option_definition.h 
 +kea /usr/include/kea/dhcp/option_int.h 
 +kea /usr/include/kea/dhcp/option_int_array.h 
 +kea /usr/include/kea/dhcp/option_opaque_data_tuples.h 
 +kea /usr/include/kea/dhcp/option_space.h 
 +kea /usr/include/kea/dhcp/option_space_container.h 
 +kea /usr/include/kea/dhcp/option_string.h 
 +kea /usr/include/kea/dhcp/option_vendor.h 
 +kea /usr/include/kea/dhcp/option_vendor_class.h 
 +kea /usr/include/kea/dhcp/packet_queue.h 
 +kea /usr/include/kea/dhcp/packet_queue_mgr.h 
 +kea /usr/include/kea/dhcp/packet_queue_mgr4.h 
 +kea /usr/include/kea/dhcp/packet_queue_mgr6.h 
 +kea /usr/include/kea/dhcp/packet_queue_ring.h 
 +kea /usr/include/kea/dhcp/pkt.h 
 +kea /usr/include/kea/dhcp/pkt4.h 
 +kea /usr/include/kea/dhcp/pkt4o6.h 
 +kea /usr/include/kea/dhcp/pkt6.h 
 +kea /usr/include/kea/dhcp/pkt_filter.h 
 +kea /usr/include/kea/dhcp/pkt_filter6.h 
 +kea /usr/include/kea/dhcp/pkt_filter_inet.h 
 +kea /usr/include/kea/dhcp/pkt_filter_inet6.h 
 +kea /usr/include/kea/dhcp/pkt_filter_lpf.h 
 +kea /usr/include/kea/dhcp/pkt_template.h 
 +kea /usr/include/kea/dhcp/protocol_util.h 
 +kea /usr/include/kea/dhcp/socket_info.h 
 +kea /usr/include/kea/dhcp/std_option_defs.h 
 +kea /usr/include/kea/dhcp_ddns/ 
 +kea /usr/include/kea/dhcp_ddns/dhcp_ddns_log.h 
 +kea /usr/include/kea/dhcp_ddns/dhcp_ddns_messages.h 
 +kea /usr/include/kea/dhcp_ddns/ncr_io.h 
 +kea /usr/include/kea/dhcp_ddns/ncr_msg.h 
 +kea /usr/include/kea/dhcp_ddns/ncr_udp.h 
 +kea /usr/include/kea/dhcpsrv/ 
 +kea /usr/include/kea/dhcpsrv/alloc_engine.h 
 +kea /usr/include/kea/dhcpsrv/alloc_engine_log.h 
 +kea /usr/include/kea/dhcpsrv/alloc_engine_messages.h 
 +kea /usr/include/kea/dhcpsrv/allocation_state.h 
 +kea /usr/include/kea/dhcpsrv/allocator.h 
 +kea /usr/include/kea/dhcpsrv/base_host_data_source.h 
 +kea /usr/include/kea/dhcpsrv/cache_host_data_source.h 
 +kea /usr/include/kea/dhcpsrv/callout_handle_store.h 
 +kea /usr/include/kea/dhcpsrv/cb_ctl_dhcp.h 
 +kea /usr/include/kea/dhcpsrv/cb_ctl_dhcp4.h 
 +kea /usr/include/kea/dhcpsrv/cb_ctl_dhcp6.h 
 +kea /usr/include/kea/dhcpsrv/cfg_4o6.h 
 +kea /usr/include/kea/dhcpsrv/cfg_consistency.h 
 +kea /usr/include/kea/dhcpsrv/cfg_db_access.h 
 +kea /usr/include/kea/dhcpsrv/cfg_duid.h 
 +kea /usr/include/kea/dhcpsrv/cfg_expiration.h 
 +kea /usr/include/kea/dhcpsrv/cfg_globals.h 
 +kea /usr/include/kea/dhcpsrv/cfg_host_operations.h 
 +kea /usr/include/kea/dhcpsrv/cfg_hosts.h 
 +kea /usr/include/kea/dhcpsrv/cfg_hosts_util.h 
 +kea /usr/include/kea/dhcpsrv/cfg_iface.h 
 +kea /usr/include/kea/dhcpsrv/cfg_mac_source.h 
 +kea /usr/include/kea/dhcpsrv/cfg_multi_threading.h 
 +kea /usr/include/kea/dhcpsrv/cfg_option.h 
 +kea /usr/include/kea/dhcpsrv/cfg_option_def.h 
 +kea /usr/include/kea/dhcpsrv/cfg_rsoo.h 
 +kea /usr/include/kea/dhcpsrv/cfg_shared_networks.h 
 +kea /usr/include/kea/dhcpsrv/cfg_subnets4.h 
 +kea /usr/include/kea/dhcpsrv/cfg_subnets6.h 
 +kea /usr/include/kea/dhcpsrv/cfgmgr.h 
 +kea /usr/include/kea/dhcpsrv/client_class_def.h 
 +kea /usr/include/kea/dhcpsrv/config_backend_dhcp4.h 
 +kea /usr/include/kea/dhcpsrv/config_backend_dhcp4_mgr.h 
 +kea /usr/include/kea/dhcpsrv/config_backend_dhcp6.h 
 +kea /usr/include/kea/dhcpsrv/config_backend_dhcp6_mgr.h 
 +kea /usr/include/kea/dhcpsrv/config_backend_pool_dhcp4.h 
 +kea /usr/include/kea/dhcpsrv/config_backend_pool_dhcp6.h 
 +kea /usr/include/kea/dhcpsrv/csv_lease_file4.h 
 +kea /usr/include/kea/dhcpsrv/csv_lease_file6.h 
 +kea /usr/include/kea/dhcpsrv/d2_client_cfg.h 
 +kea /usr/include/kea/dhcpsrv/d2_client_mgr.h 
 +kea /usr/include/kea/dhcpsrv/db_type.h 
 +kea /usr/include/kea/dhcpsrv/dhcp4o6_ipc.h 
 +kea /usr/include/kea/dhcpsrv/dhcpsrv_exceptions.h 
 +kea /usr/include/kea/dhcpsrv/dhcpsrv_log.h 
 +kea /usr/include/kea/dhcpsrv/dhcpsrv_messages.h 
 +kea /usr/include/kea/dhcpsrv/flq_allocation_state.h 
 +kea /usr/include/kea/dhcpsrv/flq_allocator.h 
 +kea /usr/include/kea/dhcpsrv/host.h 
 +kea /usr/include/kea/dhcpsrv/host_container.h 
 +kea /usr/include/kea/dhcpsrv/host_data_source_factory.h 
 +kea /usr/include/kea/dhcpsrv/host_mgr.h 
 +kea /usr/include/kea/dhcpsrv/hosts_log.h 
 +kea /usr/include/kea/dhcpsrv/hosts_messages.h 
 +kea /usr/include/kea/dhcpsrv/ip_range.h 
 +kea /usr/include/kea/dhcpsrv/ip_range_permutation.h 
 +kea /usr/include/kea/dhcpsrv/iterative_allocation_state.h 
 +kea /usr/include/kea/dhcpsrv/iterative_allocator.h 
 +kea /usr/include/kea/dhcpsrv/key_from_key.h 
 +kea /usr/include/kea/dhcpsrv/lease.h 
 +kea /usr/include/kea/dhcpsrv/lease_file_loader.h 
 +kea /usr/include/kea/dhcpsrv/lease_file_stats.h 
 +kea /usr/include/kea/dhcpsrv/lease_mgr.h 
 +kea /usr/include/kea/dhcpsrv/lease_mgr_factory.h 
 +kea /usr/include/kea/dhcpsrv/memfile_lease_limits.h 
 +kea /usr/include/kea/dhcpsrv/memfile_lease_mgr.h 
 +kea /usr/include/kea/dhcpsrv/memfile_lease_storage.h 
 +kea /usr/include/kea/dhcpsrv/mysql_host_data_source.h 
 +kea /usr/include/kea/dhcpsrv/mysql_lease_mgr.h 
 +kea /usr/include/kea/dhcpsrv/ncr_generator.h 
 +kea /usr/include/kea/dhcpsrv/network.h 
 +kea /usr/include/kea/dhcpsrv/network_state.h 
 +kea /usr/include/kea/dhcpsrv/parsers/ 
 +kea /usr/include/kea/dhcpsrv/parsers/base_network_parser.h 
 +kea /usr/include/kea/dhcpsrv/parsers/client_class_def_parser.h 
 +kea /usr/include/kea/dhcpsrv/parsers/dhcp_parsers.h 
 +kea /usr/include/kea/dhcpsrv/parsers/dhcp_queue_control_parser.h 
 +kea /usr/include/kea/dhcpsrv/parsers/duid_config_parser.h 
 +kea /usr/include/kea/dhcpsrv/parsers/expiration_config_parser.h 
 +kea /usr/include/kea/dhcpsrv/parsers/host_reservation_parser.h 
 +kea /usr/include/kea/dhcpsrv/parsers/host_reservations_list_parser.h 
 +kea /usr/include/kea/dhcpsrv/parsers/ifaces_config_parser.h 
 +kea /usr/include/kea/dhcpsrv/parsers/multi_threading_config_parser.h 
 +kea /usr/include/kea/dhcpsrv/parsers/option_data_parser.h 
 +kea /usr/include/kea/dhcpsrv/parsers/sanity_checks_parser.h 
 +kea /usr/include/kea/dhcpsrv/parsers/shared_network_parser.h 
 +kea /usr/include/kea/dhcpsrv/parsers/shared_networks_list_parser.h 
 +kea /usr/include/kea/dhcpsrv/parsers/simple_parser4.h 
 +kea /usr/include/kea/dhcpsrv/parsers/simple_parser6.h 
 +kea /usr/include/kea/dhcpsrv/pgsql_host_data_source.h 
 +kea /usr/include/kea/dhcpsrv/pgsql_lease_mgr.h 
 +kea /usr/include/kea/dhcpsrv/pool.h 
 +kea /usr/include/kea/dhcpsrv/random_allocation_state.h 
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 +kea /usr/share/kea/api/lease4-get-all.json 
 +kea /usr/share/kea/api/lease4-get-by-client-id.json 
 +kea /usr/share/kea/api/lease4-get-by-hostname.json 
 +kea /usr/share/kea/api/lease4-get-by-hw-address.json 
 +kea /usr/share/kea/api/lease4-get-page.json 
 +kea /usr/share/kea/api/lease4-get.json 
 +kea /usr/share/kea/api/lease4-resend-ddns.json 
 +kea /usr/share/kea/api/lease4-update.json 
 +kea /usr/share/kea/api/lease4-wipe.json 
 +kea /usr/share/kea/api/lease4-write.json 
 +kea /usr/share/kea/api/lease6-add.json 
 +kea /usr/share/kea/api/lease6-bulk-apply.json 
 +kea /usr/share/kea/api/lease6-del.json 
 +kea /usr/share/kea/api/lease6-get-all.json 
 +kea /usr/share/kea/api/lease6-get-by-duid.json 
 +kea /usr/share/kea/api/lease6-get-by-hostname.json 
 +kea /usr/share/kea/api/lease6-get-page.json 
 +kea /usr/share/kea/api/lease6-get.json 
 +kea /usr/share/kea/api/lease6-resend-ddns.json 
 +kea /usr/share/kea/api/lease6-update.json 
 +kea /usr/share/kea/api/lease6-wipe.json 
 +kea /usr/share/kea/api/lease6-write.json 
 +kea /usr/share/kea/api/leases-reclaim.json 
 +kea /usr/share/kea/api/libreload.json 
 +kea /usr/share/kea/api/list-commands.json 
 +kea /usr/share/kea/api/network4-add.json 
 +kea /usr/share/kea/api/network4-del.json 
 +kea /usr/share/kea/api/network4-get.json 
 +kea /usr/share/kea/api/network4-list.json 
 +kea /usr/share/kea/api/network4-subnet-add.json 
 +kea /usr/share/kea/api/network4-subnet-del.json 
 +kea /usr/share/kea/api/network6-add.json 
 +kea /usr/share/kea/api/network6-del.json 
 +kea /usr/share/kea/api/network6-get.json 
 +kea /usr/share/kea/api/network6-list.json 
 +kea /usr/share/kea/api/network6-subnet-add.json 
 +kea /usr/share/kea/api/network6-subnet-del.json 
 +kea /usr/share/kea/api/remote-class4-del.json 
 +kea /usr/share/kea/api/remote-class4-get-all.json 
 +kea /usr/share/kea/api/remote-class4-get.json 
 +kea /usr/share/kea/api/remote-class4-set.json 
 +kea /usr/share/kea/api/remote-class6-del.json 
 +kea /usr/share/kea/api/remote-class6-get-all.json 
 +kea /usr/share/kea/api/remote-class6-get.json 
 +kea /usr/share/kea/api/remote-class6-set.json 
 +kea /usr/share/kea/api/remote-global-parameter4-del.json 
 +kea /usr/share/kea/api/remote-global-parameter4-get-all.json 
 +kea /usr/share/kea/api/remote-global-parameter4-get.json 
 +kea /usr/share/kea/api/remote-global-parameter4-set.json 
 +kea /usr/share/kea/api/remote-global-parameter6-del.json 
 +kea /usr/share/kea/api/remote-global-parameter6-get-all.json 
 +kea /usr/share/kea/api/remote-global-parameter6-get.json 
 +kea /usr/share/kea/api/remote-global-parameter6-set.json 
 +kea /usr/share/kea/api/remote-network4-del.json 
 +kea /usr/share/kea/api/remote-network4-get.json 
 +kea /usr/share/kea/api/remote-network4-list.json 
 +kea /usr/share/kea/api/remote-network4-set.json 
 +kea /usr/share/kea/api/remote-network6-del.json 
 +kea /usr/share/kea/api/remote-network6-get.json 
 +kea /usr/share/kea/api/remote-network6-list.json 
 +kea /usr/share/kea/api/remote-network6-set.json 
 +kea /usr/share/kea/api/remote-option-def4-del.json 
 +kea /usr/share/kea/api/remote-option-def4-get-all.json 
 +kea /usr/share/kea/api/remote-option-def4-get.json 
 +kea /usr/share/kea/api/remote-option-def4-set.json 
 +kea /usr/share/kea/api/remote-option-def6-del.json 
 +kea /usr/share/kea/api/remote-option-def6-get-all.json 
 +kea /usr/share/kea/api/remote-option-def6-get.json 
 +kea /usr/share/kea/api/remote-option-def6-set.json 
 +kea /usr/share/kea/api/remote-option4-global-del.json 
 +kea /usr/share/kea/api/remote-option4-global-get-all.json 
 +kea /usr/share/kea/api/remote-option4-global-get.json 
 +kea /usr/share/kea/api/remote-option4-global-set.json 
 +kea /usr/share/kea/api/remote-option4-network-del.json 
 +kea /usr/share/kea/api/remote-option4-network-set.json 
 +kea /usr/share/kea/api/remote-option4-pool-del.json 
 +kea /usr/share/kea/api/remote-option4-pool-set.json 
 +kea /usr/share/kea/api/remote-option4-subnet-del.json 
 +kea /usr/share/kea/api/remote-option4-subnet-set.json 
 +kea /usr/share/kea/api/remote-option6-global-del.json 
 +kea /usr/share/kea/api/remote-option6-global-get-all.json 
 +kea /usr/share/kea/api/remote-option6-global-get.json 
 +kea /usr/share/kea/api/remote-option6-global-set.json 
 +kea /usr/share/kea/api/remote-option6-network-del.json 
 +kea /usr/share/kea/api/remote-option6-network-set.json 
 +kea /usr/share/kea/api/remote-option6-pd-pool-del.json 
 +kea /usr/share/kea/api/remote-option6-pd-pool-set.json 
 +kea /usr/share/kea/api/remote-option6-pool-del.json 
 +kea /usr/share/kea/api/remote-option6-pool-set.json 
 +kea /usr/share/kea/api/remote-option6-subnet-del.json 
 +kea /usr/share/kea/api/remote-option6-subnet-set.json 
 +kea /usr/share/kea/api/remote-server4-del.json 
 +kea /usr/share/kea/api/remote-server4-get-all.json 
 +kea /usr/share/kea/api/remote-server4-get.json 
 +kea /usr/share/kea/api/remote-server4-set.json 
 +kea /usr/share/kea/api/remote-server6-del.json 
 +kea /usr/share/kea/api/remote-server6-get-all.json 
 +kea /usr/share/kea/api/remote-server6-get.json 
 +kea /usr/share/kea/api/remote-server6-set.json 
 +kea /usr/share/kea/api/remote-subnet4-del-by-id.json 
 +kea /usr/share/kea/api/remote-subnet4-del-by-prefix.json 
 +kea /usr/share/kea/api/remote-subnet4-get-by-id.json 
 +kea /usr/share/kea/api/remote-subnet4-get-by-prefix.json 
 +kea /usr/share/kea/api/remote-subnet4-list.json 
 +kea /usr/share/kea/api/remote-subnet4-set.json 
 +kea /usr/share/kea/api/remote-subnet6-del-by-id.json 
 +kea /usr/share/kea/api/remote-subnet6-del-by-prefix.json 
 +kea /usr/share/kea/api/remote-subnet6-get-by-id.json 
 +kea /usr/share/kea/api/remote-subnet6-get-by-prefix.json 
 +kea /usr/share/kea/api/remote-subnet6-list.json 
 +kea /usr/share/kea/api/remote-subnet6-set.json 
 +kea /usr/share/kea/api/reservation-add.json 
 +kea /usr/share/kea/api/reservation-del.json 
 +kea /usr/share/kea/api/reservation-get-all.json 
 +kea /usr/share/kea/api/reservation-get-by-address.json 
 +kea /usr/share/kea/api/reservation-get-by-hostname.json 
 +kea /usr/share/kea/api/reservation-get-by-id.json 
 +kea /usr/share/kea/api/reservation-get-page.json 
 +kea /usr/share/kea/api/reservation-get.json 
 +kea /usr/share/kea/api/reservation-update.json 
 +kea /usr/share/kea/api/server-tag-get.json 
 +kea /usr/share/kea/api/shutdown.json 
 +kea /usr/share/kea/api/stat-lease4-get.json 
 +kea /usr/share/kea/api/stat-lease6-get.json 
 +kea /usr/share/kea/api/statistic-get-all.json 
 +kea /usr/share/kea/api/statistic-get.json 
 +kea /usr/share/kea/api/statistic-remove-all.json 
 +kea /usr/share/kea/api/statistic-remove.json 
 +kea /usr/share/kea/api/statistic-reset-all.json 
 +kea /usr/share/kea/api/statistic-reset.json 
 +kea /usr/share/kea/api/statistic-sample-age-set-all.json 
 +kea /usr/share/kea/api/statistic-sample-age-set.json 
 +kea /usr/share/kea/api/statistic-sample-count-set-all.json 
 +kea /usr/share/kea/api/statistic-sample-count-set.json 
 +kea /usr/share/kea/api/status-get.json 
 +kea /usr/share/kea/api/subnet4-add.json 
 +kea /usr/share/kea/api/subnet4-del.json 
 +kea /usr/share/kea/api/subnet4-delta-add.json 
 +kea /usr/share/kea/api/subnet4-delta-del.json 
 +kea /usr/share/kea/api/subnet4-get.json 
 +kea /usr/share/kea/api/subnet4-list.json 
 +kea /usr/share/kea/api/subnet4-update.json 
 +kea /usr/share/kea/api/subnet6-add.json 
 +kea /usr/share/kea/api/subnet6-del.json 
 +kea /usr/share/kea/api/subnet6-delta-add.json 
 +kea /usr/share/kea/api/subnet6-delta-del.json 
 +kea /usr/share/kea/api/subnet6-get.json 
 +kea /usr/share/kea/api/subnet6-list.json 
 +kea /usr/share/kea/api/subnet6-update.json 
 +kea /usr/share/kea/api/version-get.json 
 +kea /usr/share/kea/scripts/ 
 +kea /usr/share/kea/scripts/admin-utils.sh 
 +kea /usr/share/kea/scripts/mysql/ 
 +kea /usr/share/kea/scripts/mysql/dhcpdb_create.mysql 
 +kea /usr/share/kea/scripts/mysql/dhcpdb_drop.mysql 
 +kea /usr/share/kea/scripts/mysql/upgrade_001.0_to_002.0.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_002.0_to_003.0.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_003.0_to_004.0.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_004.0_to_004.1.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_004.1_to_005.0.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_005.0_to_005.1.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_005.1_to_005.2.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_005.2_to_006.0.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_006.0_to_007.0.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_007.0_to_008.0.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_008.0_to_008.1.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_008.1_to_008.2.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_008.2_to_009.0.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_009.0_to_009.1.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_009.1_to_009.2.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_009.2_to_009.3.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_009.3_to_009.4.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_009.4_to_009.5.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_009.5_to_009.6.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_009.6_to_010.0.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_010_to_011.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_011_to_012.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_012_to_013.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_013_to_014.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_014_to_015.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_015_to_016.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_016_to_017.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_017_to_018.sh 
 +kea /usr/share/kea/scripts/mysql/upgrade_018_to_019.sh 
 +kea /usr/share/kea/scripts/mysql/wipe_data.sh 
 +kea /usr/share/kea/scripts/pgsql/ 
 +kea /usr/share/kea/scripts/pgsql/dhcpdb_create.pgsql 
 +kea /usr/share/kea/scripts/pgsql/dhcpdb_drop.pgsql 
 +kea /usr/share/kea/scripts/pgsql/upgrade_001.0_to_002.0.sh 
 +kea /usr/share/kea/scripts/pgsql/upgrade_002.0_to_003.0.sh 
 +kea /usr/share/kea/scripts/pgsql/upgrade_003.0_to_003.1.sh 
 +kea /usr/share/kea/scripts/pgsql/upgrade_003.1_to_003.2.sh 
 +kea /usr/share/kea/scripts/pgsql/upgrade_003.2_to_003.3.sh 
 +kea /usr/share/kea/scripts/pgsql/upgrade_003.3_to_004.0.sh 
 +kea /usr/share/kea/scripts/pgsql/upgrade_004.0_to_005.0.sh 
 +kea /usr/share/kea/scripts/pgsql/upgrade_005.0_to_005.1.sh 
 +kea /usr/share/kea/scripts/pgsql/upgrade_005.1_to_006.0.sh 
 +kea /usr/share/kea/scripts/pgsql/upgrade_006.0_to_006.1.sh 
 +kea /usr/share/kea/scripts/pgsql/upgrade_006.1_to_006.2.sh 
 +kea /usr/share/kea/scripts/pgsql/upgrade_006.2_to_007.0.sh 
 +kea /usr/share/kea/scripts/pgsql/upgrade_007_to_008.sh 
 +kea /usr/share/kea/scripts/pgsql/upgrade_008_to_009.sh 
 +kea /usr/share/kea/scripts/pgsql/upgrade_009_to_010.sh 
 +kea /usr/share/kea/scripts/pgsql/upgrade_010_to_011.sh 
 +kea /usr/share/kea/scripts/pgsql/upgrade_011_to_012.sh 
 +kea /usr/share/kea/scripts/pgsql/upgrade_012_to_013.sh 
 +kea /usr/share/kea/scripts/pgsql/upgrade_013_to_014.sh 
 +kea /usr/share/kea/scripts/pgsql/upgrade_014_to_015.sh 
 +kea /usr/share/kea/scripts/pgsql/upgrade_015_to_016.sh 
 +kea /usr/share/kea/scripts/pgsql/upgrade_016_to_017.sh 
 +kea /usr/share/kea/scripts/pgsql/upgrade_017_to_018.sh 
 +kea /usr/share/kea/scripts/pgsql/wipe_data.sh 
 +kea /var/ 
 +kea /var/lib/ 
 +kea /var/lib/kea/ 
 +kea /var/log/</code> 
 + 
 +++++ 
 + 
 +===== Dokumentation ===== 
 +Eine ausführliche Onlinedokumentation des **[[https://www.isc.org/kea/|modernen Open Source DHCPv4 & DHCPv6 Server Kea]]** findet sich auf der entsprechenden Dokumentationsseite bei **[[https://about.readthedocs.com/|Read the Docs]]** → https://kea.readthedocs.io/en/latest/
 + 
 +===== Konfiguration ===== 
 +Die Konfiguration unseres DHCPv4 und DHCPv6-Servers wie auch des Controll-Agenten und ggf. des Kea DHCP DDNS Daemaons erfolgt über JSON-Konfigurationsdateien im Verzeichnis **''/etc/kea/''**. 
 + 
 +==== DHCPv4 Server ==== 
 +Zunächst wollen wir uns eingehend mit der Konfiguration unseres DHCPv4-Daemons befassen. Die zugehörige Original-Dokumentation findet sich im Abschnitt **[[https://kea.readthedocs.io/en/latest/arm/dhcp4-srv.html#dhcpv4-server-configuration|8.2. DHCPv4 Server Configuration]]**.  
 + 
 +In unserer Betriebsumgebung haben wir folgende Rahmenbedingungen für unseren DHCPv4-Server: 
 +  * **Netzwerkinterface** : \\ Unser DHCPv4-Daemon soll auf dem Netzwerkinterface **''eth1''** auf entsprechende Adressanfragen lauschen und ausliefern. 
 +  * **Leases** : \\ In unserer Beispielumgebung sollen die Leases unserer Clients in der Datei **''/var/lib/kea/dhcp4.leases''** vorgehalten werden. Optional wäre auch die Speicherung in einer MariaDB bzw. mySQL-Datenbank oder in einer PostgreSQL-Datenbank denkbar. Aber im ersten Schritt wollen wir uns mal mit einer Ablage in einer Datei begnügen. 
 +  * **Name-Server** : \\ Der interne DNS-Daemon ist unter der IP-Adresse **''10.0.0.27''** erreichbar. 
 +  * **Domain-Name** : \\ Der Name unserer Domain lautet **''nausch.org''**. 
 +  * **Domain-Search-Liste** : \\ Der DHCPv4-Server soll als Domain-Search-List ausgeben: **''%%"%%edmz.nausch.org, idmz.nausch.org, intra.nausch.org%%"%%''**   
 +  * **Time-Server** : \\ Der interne Time-Server ist unter der IP-Adresse **''10.0.0.17''** erreichbar. 
 +  * **Router** : \\ Der Default-Router ist unter der IP-Adresse **''10.0.0.17''** erreichbar. 
 +  * **Subnetz** : \\ Der DHCPv4-Server ist zuständig für das Netz **''10.0.10.0/24''** 
 +  * **Pool (dynamischer Adress-Bereich)** : \\ Dynamische IP-Adressen sollen aus dem Bereich von **''10.0.10.230 - 10.0.10.250''** vergeben werden.  
 + 
 +Bei der Installation unseres Kea-Servers wurde uns eine entsprechende Musterkonfigurations-Datei bereits mitgeliefert
 +   # less /etc/kea/kea-dhcp4.conf 
 + 
 +++++ /etc/kea/kea-dhcp4.conf | 
 +<code>// This is a basic configuration for the Kea DHCPv4 server. Subnet declarations 
 +// are mostly commented out and no interfaces are listed. Therefore, the servers 
 +// will not listen or respond to any queries. 
 +// The basic configuration must be extended to specify interfaces on which 
 +// the servers should listen. There are a number of example options defined. 
 +// These probably don't make any sense in your network. Make sure you at least 
 +// update the following, before running this example in your network: 
 +// - change the network interface names 
 +// - change the subnets to match your actual network 
 +// - change the option values to match your network 
 +// 
 +// This is just a very basic configuration. Kea comes with large suite (over 30) 
 +// of configuration examples and extensive Kea User's Guide. Please refer to 
 +// those materials to get better understanding of what this software is able to 
 +// do. Comments in this configuration file sometimes refer to sections for more 
 +// details. These are section numbers in Kea User's Guide. The version matching 
 +// your software should come with your Kea package, but it is also available 
 +// in ISC's Knowledgebase (https://kea.readthedocs.io; the direct link for 
 +// the stable version is https://kea.readthedocs.io/). 
 +// 
 +// This configuration file contains only DHCPv4 server's configuration. 
 +// If configurations for other Kea services are also included in this file they 
 +// are ignored by the DHCPv4 server. 
 +
 + 
 +// DHCPv4 configuration starts here. This section will be read by DHCPv4 server 
 +// and will be ignored by other components. 
 +"Dhcp4":
 +    // Add names of your network interfaces to listen on. 
 +    "interfaces-config":
 +        // See section 8.2.4 for more details. You probably want to add just 
 +        // interface name (e.g. "eth0" or specific IPv4 address on that 
 +        // interface name (e.g. "eth0/192.0.2.1"). 
 +        "interfaces": [ ] 
 + 
 +        // Kea DHCPv4 server by default listens using raw sockets. This ensures 
 +        // all packets, including those sent by directly connected clients 
 +        // that don't have IPv4 address yet, are received. However, if your 
 +        // traffic is always relayed, it is often better to use regular 
 +        // UDP sockets. If you want to do that, uncomment this line: 
 +        // "dhcp-socket-type": "udp" 
 +    }, 
 + 
 +    // Kea supports control channel, which is a way to receive management 
 +    // commands while the server is running. This is a Unix domain socket that 
 +    // receives commands formatted in JSON, e.g. config-set (which sets new 
 +    // configuration), config-reload (which tells Kea to reload its 
 +    // configuration from file), statistic-get (to retrieve statistics) and many 
 +    // more. For detailed description, see Sections 8.8, 16 and 15. 
 +    "control-socket":
 +        "socket-type": "unix", 
 +        "socket-name": "/tmp/kea4-ctrl-socket" 
 +    }, 
 + 
 +    // Use Memfile lease database backend to store leases in a CSV file. 
 +    // Depending on how Kea was compiled, it may also support SQL databases 
 +    // (MySQL and/or PostgreSQL). Those database backends require more 
 +    // parameters, like name, host and possibly user and password. 
 +    // There are dedicated examples for each backend. See Section 7.2.2 "Lease 
 +    // Storage" for details. 
 +    "lease-database":
 +        // Memfile is the simplest and easiest backend to use. It's an in-memory 
 +        // C++ database that stores its state in CSV file. 
 +        "type": "memfile", 
 +        "lfc-interval": 3600 
 +    }, 
 + 
 +    // Kea allows storing host reservations in a database. If your network is 
 +    // small or you have few reservations, it's probably easier to keep them 
 +    // in the configuration file. If your network is large, it's usually better 
 +    // to use database for it. To enable it, uncomment the following: 
 +    // "hosts-database":
 +    //     "type": "mysql", 
 +    //     "name": "kea", 
 +    //     "user": "kea", 
 +    //     "password": "kea", 
 +    //     "host": "localhost", 
 +    //     "port": 3306 
 +    // }, 
 +    // See Section 7.2.3 "Hosts storage" for details. 
 + 
 +    // Setup reclamation of the expired leases and leases affinity. 
 +    // Expired leases will be reclaimed every 10 seconds. Every 25 
 +    // seconds reclaimed leases, which have expired more than 3600 
 +    // seconds ago, will be removed. The limits for leases reclamation 
 +    // are 100 leases or 250 ms for a single cycle. A warning message 
 +    // will be logged if there are still expired leases in the 
 +    // database after 5 consecutive reclamation cycles. 
 +    // If both "flush-reclaimed-timer-wait-time" and "hold-reclaimed-time" are 
 +    // not 0, when the client sends a release message the lease is expired 
 +    // instead of being deleted from the lease storage. 
 +    "expired-leases-processing":
 +        "reclaim-timer-wait-time": 10, 
 +        "flush-reclaimed-timer-wait-time": 25, 
 +        "hold-reclaimed-time": 3600, 
 +        "max-reclaim-leases": 100, 
 +        "max-reclaim-time": 250, 
 +        "unwarned-reclaim-cycles":
 +    }, 
 + 
 +    // Global timers specified here apply to all subnets, unless there are 
 +    // subnet specific values defined in particular subnets. 
 +    "renew-timer": 900, 
 +    "rebind-timer": 1800, 
 +    "valid-lifetime": 3600, 
 + 
 +    // Many additional parameters can be specified here: 
 +    // - option definitions (if you want to define vendor options, your own 
 +    //                       custom options or perhaps handle standard options 
 +    //                       that Kea does not support out of the box yet) 
 +    // - client classes 
 +    // - hooks 
 +    // - ddns information (how the DHCPv4 component can reach a DDNS daemon) 
 +    // 
 +    // Some of them have examples below, but there are other parameters. 
 +    // Consult Kea User's Guide to find out about them. 
 + 
 +    // These are global options. They are going to be sent when a client 
 +    // requests them, unless overwritten with values in more specific scopes. 
 +    // The scope hierarchy is: 
 +    // - global (most generic, can be overwritten by class, subnet or host) 
 +    // - class (can be overwritten by subnet or host) 
 +    // - subnet (can be overwritten by host) 
 +    // - host (most specific, overwrites any other scopes) 
 +    // 
 +    // Not all of those options make sense. Please configure only those that 
 +    // are actually useful in your network. 
 +    // 
 +    // For a complete list of options currently supported by Kea, see 
 +    // Section 7.2.8 "Standard DHCPv4 Options". Kea also supports 
 +    // vendor options (see Section 7.2.10) and allows users to define their 
 +    // own custom options (see Section 7.2.9). 
 +    "option-data":
 +        // When specifying options, you typically need to specify 
 +        // one of (name or code) and data. The full option specification 
 +        // covers name, code, space, csv-format and data. 
 +        // space defaults to "dhcp4" which is usually correct, unless you 
 +        // use encapsulate options. csv-format defaults to "true", so 
 +        // this is also correct, unless you want to specify the whole 
 +        // option value as long hex string. For example, to specify 
 +        // domain-name-servers you could do this: 
 +        // { 
 +        //     "name": "domain-name-servers", 
 +        //     "code": 6, 
 +        //     "csv-format": "true", 
 +        //     "space": "dhcp4", 
 +        //     "data": "192.0.2.1, 192.0.2.2" 
 +        // } 
 +        // but it's a lot of writing, so it's easier to do this instead: 
 +        { 
 +            "name": "domain-name-servers", 
 +            "data": "192.0.2.1, 192.0.2.2" 
 +        }, 
 + 
 +        // Typically people prefer to refer to options by their names, so they 
 +        // don't need to remember the code names. However, some people like 
 +        // to use numerical values. For example, option "domain-name" uses 
 +        // option code 15, so you can reference to it either by 
 +        // "name": "domain-name" or "code": 15. 
 +        { 
 +            "code": 15, 
 +            "data": "example.org" 
 +        }, 
 + 
 +        // Domain search is also a popular option. It tells the client to 
 +        // attempt to resolve names within those specified domains. For 
 +        // example, name "foo" would be attempted to be resolved as 
 +        // foo.mydomain.example.com and if it fails, then as foo.example.com 
 +        { 
 +            "name": "domain-search", 
 +            "data": "mydomain.example.com, example.com" 
 +        }, 
 + 
 +        // String options that have a comma in their values need to have 
 +        // it escaped (i.e. each comma is preceded by two backslashes). 
 +        // That's because commas are reserved for separating fields in 
 +        // compound options. At the same time, we need to be conformant 
 +        // with JSON spec, that does not allow "\,". Therefore the 
 +        // slightly uncommon double backslashes notation is needed. 
 + 
 +        // Legal JSON escapes are \ followed by "\/bfnrt character 
 +        // or \u followed by 4 hexadecimal numbers (currently Kea 
 +        // supports only \u0000 to \u00ff code points). 
 +        // CSV processing translates '\\' into '\' and '\,' into ',' 
 +        // only so for instance '\x' is translated into '\x'. But 
 +        // as it works on a JSON string value each of these '\' 
 +        // characters must be doubled on JSON input. 
 +        { 
 +            "name": "boot-file-name", 
 +            "data": "EST5EDT4\\,M3.2.0/02:00\\,M11.1.0/02:00" 
 +        }, 
 + 
 +        // Options that take integer values can either be specified in 
 +        // dec or hex format. Hex format could be either plain (e.g. abcd) 
 +        // or prefixed with 0x (e.g. 0xabcd). 
 +        { 
 +            "name": "default-ip-ttl", 
 +            "data": "0xf0" 
 +        } 
 + 
 +        // Note that Kea provides some of the options on its own. In particular, 
 +        // it sends IP Address lease type (code 51, based on valid-lifetime 
 +        // parameter, Subnet mask (code 1, based on subnet definition), Renewal 
 +        // time (code 58, based on renew-timer parameter), Rebind time (code 59, 
 +        // based on rebind-timer parameter). 
 +    ], 
 + 
 +    // Other global parameters that can be defined here are option definitions 
 +    // (this is useful if you want to use vendor options, your own custom 
 +    // options or perhaps handle options that Kea does not handle out of the box 
 +    // yet). 
 + 
 +    // You can also define classes. If classes are defined, incoming packets 
 +    // may be assigned to specific classes. A client class can represent any 
 +    // group of devices that share some common characteristic, e.g. Windows 
 +    // devices, iphones, broken printers that require special options, etc. 
 +    // Based on the class information, you can then allow or reject clients 
 +    // to use certain subnets, add special options for them or change values 
 +    // of some fixed fields. 
 +    "client-classes":
 +        { 
 +            // This specifies a name of this class. It's useful if you need to 
 +            // reference this class. 
 +            "name": "voip", 
 + 
 +            // This is a test. It is an expression that is being evaluated on 
 +            // each incoming packet. It is supposed to evaluate to either 
 +            // true or false. If it's true, the packet is added to specified 
 +            // class. See Section 12 for a list of available expressions. There 
 +            // are several dozens. Section 8.2.14 for more details for DHCPv4 
 +            // classification and Section 9.2.19 for DHCPv6. 
 +            "test": "substring(option[60].hex,0,6) == 'Aastra'", 
 + 
 +            // If a client belongs to this class, you can define extra behavior. 
 +            // For example, certain fields in DHCPv4 packet will be set to 
 +            // certain values. 
 +            "next-server": "192.0.2.254", 
 +            "server-hostname": "hal9000", 
 +            "boot-file-name": "/dev/null" 
 + 
 +            // You can also define option values here if you want devices from 
 +            // this class to receive special options. 
 +        } 
 +    ], 
 + 
 +    // Another thing possible here are hooks. Kea supports a powerful mechanism 
 +    // that allows loading external libraries that can extract information and 
 +    // even influence how the server processes packets. Those libraries include 
 +    // additional forensic logging capabilities, ability to reserve hosts in 
 +    // more flexible ways, and even add extra commands. For a list of available 
 +    // hook libraries, see https://gitlab.isc.org/isc-projects/kea/wikis/Hooks-available. 
 +    // "hooks-libraries":
 +    //   { 
 +    //       // Forensic Logging library generates forensic type of audit trail 
 +    //       // of all devices serviced by Kea, including their identifiers 
 +    //       // (like MAC address), their location in the network, times 
 +    //       // when they were active etc. 
 +    //       "library": "/usr/lib/kea/hooks/libdhcp_legal_log.so", 
 +    //       "parameters":
 +    //           "path": "/var/lib/kea", 
 +    //           "base-name": "kea-forensic4" 
 +    //       } 
 +    //   }, 
 +    //   { 
 +    //       // Flexible identifier (flex-id). Kea software provides a way to 
 +    //       // handle host reservations that include addresses, prefixes, 
 +    //       // options, client classes and other features. The reservation can 
 +    //       // be based on hardware address, DUID, circuit-id or client-id in 
 +    //       // DHCPv4 and using hardware address or DUID in DHCPv6. However, 
 +    //       // there are sometimes scenario where the reservation is more 
 +    //       // complex, e.g. uses other options that mentioned above, uses part 
 +    //       // of specific options or perhaps even a combination of several 
 +    //       // options and fields to uniquely identify a client. Those scenarios 
 +    //       // are addressed by the Flexible Identifiers hook application. 
 +    //       "library": "/usr/lib/kea/hooks/libdhcp_flex_id.so", 
 +    //       "parameters":
 +    //           "identifier-expression": "relay4[2].hex" 
 +    //       } 
 +    //   } 
 +    // ], 
 + 
 +    // Below an example of a simple IPv4 subnet declaration. Uncomment to enable 
 +    // it. This is a list, denoted with [ ], of structures, each denoted with 
 +    // { }. Each structure describes a single subnet and may have several 
 +    // parameters. One of those parameters is "pools" that is also a list of 
 +    // structures. 
 +    "subnet4":
 +        { 
 +            // This defines the whole subnet. Kea will use this information to 
 +            // determine where the clients are connected. This is the whole 
 +            // subnet in your network. 
 + 
 +            // Subnet identifier should be unique for each subnet. 
 +            "id": 1, 
 + 
 +            // This is mandatory parameter for each subnet. 
 +            "subnet": "192.0.2.0/24", 
 + 
 +            // Pools define the actual part of your subnet that is governed 
 +            // by Kea. Technically this is optional parameter, but it's 
 +            // almost always needed for DHCP to do its job. If you omit it, 
 +            // clients won't be able to get addresses, unless there are 
 +            // host reservations defined for them. 
 +            "pools": [ { "pool": "192.0.2.1 - 192.0.2.200" } ], 
 + 
 +            // These are options that are subnet specific. In most cases, 
 +            // you need to define at least routers option, as without this 
 +            // option your clients will not be able to reach their default 
 +            // gateway and will not have Internet connectivity. 
 +            "option-data":
 +                { 
 +                    // For each IPv4 subnet you most likely need to specify at 
 +                    // least one router. 
 +                    "name": "routers", 
 +                    "data": "192.0.2.1" 
 +                } 
 +            ], 
 + 
 +            // Kea offers host reservations mechanism. Kea supports reservations 
 +            // by several different types of identifiers: hw-address 
 +            // (hardware/MAC address of the client), duid (DUID inserted by the 
 +            // client), client-id (client identifier inserted by the client) and 
 +            // circuit-id (circuit identifier inserted by the relay agent). 
 +            // 
 +            // Kea also support flexible identifier (flex-id), which lets you 
 +            // specify an expression that is evaluated for each incoming packet. 
 +            // Resulting value is then used for as an identifier. 
 +            // 
 +            // Note that reservations are subnet-specific in Kea. This is 
 +            // different than ISC DHCP. Keep that in mind when migrating 
 +            // your configurations. 
 +            "reservations":
 + 
 +                // This is a reservation for a specific hardware/MAC address. 
 +                // It's a rather simple reservation: just an address and nothing 
 +                // else. 
 +                { 
 +                    "hw-address": "1a:1b:1c:1d:1e:1f", 
 +                    "ip-address": "192.0.2.201" 
 +                }, 
 + 
 +                // This is a reservation for a specific client-id. It also shows 
 +                // the this client will get a reserved hostname. A hostname can 
 +                // be defined for any identifier type, not just client-id. 
 +                { 
 +                    "client-id": "01:11:22:33:44:55:66", 
 +                    "ip-address": "192.0.2.202", 
 +                    "hostname": "special-snowflake" 
 +                }, 
 + 
 +                // The third reservation is based on DUID. This reservation defines 
 +                // a special option values for this particular client. If the 
 +                // domain-name-servers option would have been defined on a global, 
 +                // subnet or class level, the host specific values take preference. 
 +                { 
 +                    "duid": "01:02:03:04:05", 
 +                    "ip-address": "192.0.2.203", 
 +                    "option-data": [ { 
 +                        "name": "domain-name-servers", 
 +                        "data": "10.1.1.202, 10.1.1.203" 
 +                    } ] 
 +                }, 
 + 
 +                // The fourth reservation is based on circuit-id. This is an option 
 +                // inserted by the relay agent that forwards the packet from client 
 +                // to the server.  In this example the host is also assigned vendor 
 +                // specific options. 
 +                // 
 +                // When using reservations, it is useful to configure 
 +                // reservations-global, reservations-in-subnet, 
 +                // reservations-out-of-pool (subnet specific parameters) 
 +                // and host-reservation-identifiers (global parameter). 
 +                { 
 +                    "client-id": "01:12:23:34:45:56:67", 
 +                    "ip-address": "192.0.2.204", 
 +                    "option-data":
 +                        { 
 +                            "name": "vivso-suboptions", 
 +                            "data": "4491" 
 +                        }, 
 +                        { 
 +                            "name": "tftp-servers", 
 +                            "space": "vendor-4491", 
 +                            "data": "10.1.1.202, 10.1.1.203" 
 +                        } 
 +                    ] 
 +                }, 
 +                // This reservation is for a client that needs specific DHCPv4 
 +                // fields to be set. Three supported fields are next-server, 
 +                // server-hostname and boot-file-name 
 +                { 
 +                    "client-id": "01:0a:0b:0c:0d:0e:0f", 
 +                    "ip-address": "192.0.2.205", 
 +                    "next-server": "192.0.2.1", 
 +                    "server-hostname": "hal9000", 
 +                    "boot-file-name": "/dev/null" 
 +                }, 
 +                // This reservation is using flexible identifier. Instead of 
 +                // relying on specific field, sysadmin can define an expression 
 +                // similar to what is used for client classification, 
 +                // e.g. substring(relay[0].option[17],0,6). Then, based on the 
 +                // value of that expression for incoming packet, the reservation 
 +                // is matched. Expression can be specified either as hex or 
 +                // plain text using single quotes. 
 +                // 
 +                // Note: flexible identifier requires flex_id hook library to be 
 +                // loaded to work. 
 +                { 
 +                    "flex-id": "'s0mEVaLue'", 
 +                    "ip-address": "192.0.2.206" 
 +                } 
 +                // You can add more reservations here. 
 +            ] 
 +            // You can add more subnets there. 
 +        } 
 +    ], 
 + 
 +    // There are many, many more parameters that DHCPv4 server is able to use. 
 +    // They were not added here to not overwhelm people with too much 
 +    // information at once. 
 + 
 +    // Logging configuration starts here. Kea uses different loggers to log various 
 +    // activities. For details (e.g. names of loggers), see Chapter 18. 
 +    "loggers":
 +    { 
 +        // This section affects kea-dhcp4, which is the base logger for DHCPv4 
 +        // component. It tells DHCPv4 server to write all log messages (on 
 +        // severity INFO or more) to a file. 
 +        "name": "kea-dhcp4", 
 +        "output_options":
 +            { 
 +                // Specifies the output file. There are several special values 
 +                // supported: 
 +                // - stdout (prints on standard output) 
 +                // - stderr (prints on standard error) 
 +                // - syslog (logs to syslog) 
 +                // - syslog:name (logs to syslog using specified name) 
 +                // Any other value is considered a name of the file 
 +                "output": "/var/log/kea-dhcp4.log" 
 + 
 +                // Shorter log pattern suitable for use with systemd, 
 +                // avoids redundant information 
 +                // "pattern": "%-5p %m\n", 
 + 
 +                // This governs whether the log output is flushed to disk after 
 +                // every write. 
 +                // "flush": false, 
 + 
 +                // This specifies the maximum size of the file before it is 
 +                // rotated. 
 +                // "maxsize": 1048576, 
 + 
 +                // This specifies the maximum number of rotated files to keep. 
 +                // "maxver":
 +            } 
 +        ], 
 +        // This specifies the severity of log messages to keep. Supported values 
 +        // are: FATAL, ERROR, WARN, INFO, DEBUG 
 +        "severity": "INFO", 
 + 
 +        // If DEBUG level is specified, this value is used. 0 is least verbose, 
 +        // 99 is most verbose. Be cautious, Kea can generate lots and lots 
 +        // of logs if told to do so. 
 +        "debuglevel":
 +    } 
 +  ] 
 +
 +}</code> 
 + 
 +++++ 
 + 
 +Bevor wir nun aber unseren Kea-DHCPv4-Daemon individuell nach unseren Bedürfnissen hin anpassen, werden wir zunächst die im Paket mitgelieferte Original-Konfigurationsdatei **''/etc/kea/kea-dhcp4.conf''** für spätere Referenzen sichern.  
 +   # cp -a /etc/kea/kea-dhcp4.conf /etc/kea/kea-dhcp4.conf.orig 
 + 
 +So können wir später bei etwaigen Bedarf Vergleiche zur originalen Konfigurationsdatei mit unserer individuellen Konfigurationsdatei anstreben, wie in diesem Beispiel hier:  
 +   # vimdiff /etc/kea/kea-dhcp4.conf /etc/kea/kea-dhcp4.conf.orig 
 +FIXME
  
  • linux/kea.1709317386.txt.gz
  • Zuletzt geändert: 01.03.2024 18:23.
  • von django