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Today's Topics:
1. Failover | How sync fixed-addresses definition between master
and slave (Anton Shevtsov)
----------------------------------------------------------------------
Message: 1
Date: Thu, 21 Nov 2024 10:45:21 +0500
From: Anton Shevtsov <[email protected]>
To: [email protected]
Subject: Failover | How sync fixed-addresses definition between master
and slave
Message-ID: <[email protected]>
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Hi,
I make failover confuguration, all work fine. But i have one question -
how sync fixed-addresses definition between master and slave?
My /etc/dhcp/dhcpd.conf from 'primary' node. Static addresses i moved to
static.conf.
Should I copy manually to 'slave' node (after each change to this file,
and restart/reload dhcpd service) or are anybody have a best practices?
#primary
authoritative;
update-static-leases on;
one-lease-per-client on;
omapi-port 7911;
omapi-key omapi_key;
failover peer "partner" {
primary;
address 172.23.116.20;
port 519;
peer address 172.23.116.21;
peer port 520;
max-response-delay 60;
max-unacked-updates 10;
mclt 3600;
split 128;
load balance max seconds 3;
}
key "omapi_key" {
algorithm hmac-md5;
secret "--mysecrethere--";
};
subnet 172.23.116.0 netmask 255.255.255.0 {
option routers 172.23.116.1;
option subnet-mask 255.255.255.0;
option nis-domain "domen.loc";
option domain-name "domen.loc";
option domain-name-servers 172.23.116.20, 172.23.116.21;
option ntp-servers 172.23.116.20, 172.23.116.21;
default-lease-time 21600;
max-lease-time 43200;
pool {
failover peer "partner";
range 172.23.116.30 172.23.116.250;
include "/etc/dhcp/static.conf";
}
}
[root@ns1 dhcp]# cat static.conf
host srv1 {
hardware ethernet 00:50:56:bb:6f:02;
fixed-address 172.23.116.23;
}
host win10 {
hardware ethernet 00:50:56:bb:db:87;
fixed-address 172.23.116.142;
}
--
Anton
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