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--- сервис_dhcp [2021/07/21 13:40]
admin [Стандартная конфигурация]
+++ сервис_dhcp [2024/04/23 15:35]
val [isc-kea]
@@ Line 3: / Line 3: @@
   * [[https://ru.wikipedia.org/wiki/DHCP|Dynamic Host Configuration Protocol]]
   * [[https://www.isc.org/|Internet Systems Consortium, Inc. Mission-driven non-profit since 1994]]
+  * [[https://www.vultr.com/docs/stop-dhcp-from-changing-resolve-conf/|Stop DHCP From Changing resolv.conf]]
+  * [[https://www.isc.org/kea/|Kea DHCP Modern, open source DHCPv4 & DHCPv6 server]]
+===== isc-dhcp-server =====
 ===== Установка =====
@@ Line 13: / Line 19: @@
 </code><code>
 INTERFACESv4="eth0"
+#INTERFACESv4="vlan2"
+#INTERFACESv4="eth0 eth2"
 </code>
@@ Line 33: / Line 41: @@
 option domain-name "corpX.un";
 option domain-name-servers 192.168.X.10;
+#option domain-name-servers 192.168.X.12;
-shared-network LAN1 {
-  subnet 192.168.X.0 netmask 255.255.255.0 {
-    range 192.168.X.101 192.168.X.199;
-    option routers 192.168.X.1;
-  }
-}
 #### For phone provisioning ####
 #option file-server-name code 66 = string; # RFC 2132
-#option file-server-address code 150 = ip-address; # RFC 5859
+#option file-server-address code 150 = ip-address; # RFC 5859 (Cisco)
 #option file-server-name "server.corpX.un";
 #option file-server-address 192.168.X.10;
-#### Digim D40 ####
-#phone 407 {
-#  hardware ethernet 00:0f:d3:06:11:d3;
-#  option file-server-name "http://server.corpX.un/";
-#}
 #### For PXE ####
@@ Line 58: / Line 55: @@
 #next-server 192.168.X.10;
 #filename "pxelinux.0";
+shared-network LAN1 {
+  subnet 192.168.X.0 netmask 255.255.255.0 {
+    range 192.168.X.101 192.168.X.109;
+    option routers 192.168.X.1;
+  }
+}
-#### For client config by mac ####
+#shared-network LAN2 {
-#host client3 {
+#  subnet 192.168.113.0 netmask 255.255.255.0 {
-#  hardware ethernet 00:12:f0:79:3b:51;
+#    range 192.168.113.101 192.168.113.109;
-#  fixed-address 192.168.100+X.200;
+#    option routers 192.168.113.1;
+#    next-server 192.168.X.10;
+#    filename "pxe_lan2/pxelinux.0";
+#  }
+#}
+#### For ip by mac ####
+#host kube1 {hardware ethernet 08:00:27:12:34:51;fixed-address 192.168.X.221;}
+#host kube2 {hardware ethernet 08:00:27:12:34:52;fixed-address 192.168.X.222;}
+#host kube3 {hardware ethernet 08:00:27:12:34:53;fixed-address 192.168.X.223;}
+#host kube4 {hardware ethernet 08:00:27:12:34:54;fixed-address 192.168.X.224;}
+#### Digim D40 ####
+#phone 407 {
+#  hardware ethernet 00:0f:d3:06:11:d3;
+#  option file-server-name "http://server.corpX.un/";
 #}
 </code>
@@ Line 69: / Line 88: @@
   * !!! Синхронизируем время в системах !!! [[Сервис NTP]]
-  * [[http://www.lithodyne.net/docs/dhcp/dhcp.html|DHCP Failover/load balancing]]
+  * man dhcpd.conf (DHCP FAILOVER)
+  * [[https://stevendiver.com/2020/02/21/isc-dhcp-failover-configuration/|ISC DHCP Failover Configuration]]
 <code>
@@ Line 174: / Line 194: @@
 root@gate:~# dhcp-lease-list
-root@gate:~# tail -f /var/lib/dhcp/dhcpd.leases
+root@gate:~# less /var/lib/dhcp/dhcpd.leases
+root@gate:~# grep dhcp /var/log/syslog
 </code>
 ===== Статистика DHCP сервера =====
-[[http://sourceforge.net/projects/dhcpd-pools/files/]]
+  * [[http://sourceforge.net/projects/dhcpd-pools/files/]]
 ==== Debian/Ubuntu ====
 <code>
 # apt install dhcpd-pools
+# dhcpd-pools
 # dhcpd-pools -l /var/lib/dhcp/dhcpd.leases -c /etc/dhcp/dhcpd.conf
@@ Line 208: / Line 232: @@
 # dhcpd-pools -l /var/db/dhcpd/dhcpd.leases -c /usr/local/etc/dhcpd.conf
+</code>
+===== isc-kea =====
+  * [[https://ubuntu.com/server/docs/how-to-install-and-configure-isc-kea|How to install and configure isc-kea]]
+<code>
+gate# apt install kea
+gate# cat /etc/kea/kea-dhcp4.conf
+</code><code>
+{
+"Dhcp4": {
+    "interfaces-config": {
+        "interfaces": [ "eth2" ]
+    },
+    "control-socket": {
+        "socket-type": "unix",
+        "socket-name": "/run/kea/kea4-ctrl-socket"
+    },
+    "lease-database": {
+        "type": "memfile",
+        "lfc-interval": 3600
+    },
+    "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": 5
+    },
+    "renew-timer": 900,
+    "rebind-timer": 1800,
+    "valid-lifetime": 3600,
+    "option-data": [
+        {
+            "name": "domain-name-servers",
+            "data": "192.168.13.10"
+        },
+        {
+            "name": "domain-search",
+            "data": "corp13.un"
+        },
+    ],
+    "subnet4": [
+        {
+            "subnet": "192.168.113.0/24",
+            "pools": [ { "pool": "192.168.113.100 - 192.168.113.109" } ],
+            "option-data": [
+                {
+                    "name": "routers",
+                    "data": "192.168.113.1"
+                }
+            ],
+        }
+    ],
+    "loggers": [
+    {
+        "name": "kea-dhcp4",
+        "output_options": [
+            {
+                "output": "stdout",
+                "pattern": "%-5p %m\n",
+            }
+        ],
+        "severity": "INFO",
+        "debuglevel": 0
+    }
+  ]
+}
+}
+</code><code>
+# service kea-dhcp4-server restart
+# service kea-dhcp4-server status
 </code>

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