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quay:dhcp [2020-05-18 18:51] – start service and notes on static leases gabrielquay:dhcp [2020-05-18 19:05] (current) – systemd and IPv6 bug gabriel
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 Both servers are configured as failover peers.  beowulf.in.quay.net is the primary, grendel.in.quay.net is secondary. Both servers are configured as failover peers.  beowulf.in.quay.net is the primary, grendel.in.quay.net is secondary.
 +
 +To ensure that we don't try to serve IPv6 addresses (and to work around an issue with the systemd unit), configure the interface explictly in ''/etc/default/isc-dhcp-server'' by adding an interface to the following variable that is empty by default:
 +
 +<code>
 +INTERFACESv4="eth0"
 +</code>
 +
 +Provided that IPv6 is disabled via sysctl then this will work correctly.
  
 Static leases are stored in a separate ''static-leases.conf'' file that should be updated on both servers using [[ansible|Ansible]]. Static leases are stored in a separate ''static-leases.conf'' file that should be updated on both servers using [[ansible|Ansible]].
quay/dhcp.txt · Last modified: 2020-05-18 19:05 by gabriel