I'm experimenting with kea, the ISC's replacement for their dhcpd
server. So far I am cautiously optimistic.
I have kea up and running in a limited trixie environment. It handles
one client computer on a direct IPv4 only Ethernet link. I have imported
my dhcpd list of reserved hosts, and kea recognizes one of them, and
assigns the proper IP address and host name.
I have not experimented with ddns updating or kea's replacement for
failover, which kea calls high availability. I will want both of those.
If you are contemplating a similar conversion, I suggest the following:
* Install keama and use that to translate your dhcpd configuration
file(s). Hang on to them.
* Do the usual installation with apt or your favorite tool. Get
familiar with the configuration files in /etc/kea. Get kea running as
is with no customizations. This will involve assigning one or more
interfaces in an "interfaces-config" statement. If you don't do that,
the server will refuse to run, handy for those who use only one of
IPv4 or IPv6.
* Once you've done that, introduce one or a few changes at a time. I
keep a terminal window open with:
journalctl --no-pager -n 60 -f -u kea-dhcp4-server.service
running. Errors will show up there. In my experience most errors are
JSON syntax errors, often caused by not copying over your
configuration correctly.
I reload the server with its newly edited configuration with
systemctl reload-or-restart kea-dhcp4-server.service
You can also check on your leases with
cat /var/lib/kea/kea-leases4.csv*
My next steps:
* Upgrade or re-install my firewall/network services server to trixie.
I won't do this until about a month after trixie is release.
* Install kea and bind. Get those running separately.
* Get DDNS running.
* Get another kea server running trixie.
* Get bind and kea running there.
* Set up high availability between the two kea servers.
* Turn some or all of this into a Debian wiki page.
Any thoughts?
--
Does anybody read signatures any more?
https://charlescurley.com
https://charlescurley.com/blog/
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