DHCP issues 1

[Gregory Sloop]

I probably (almost certainly) don't have the time to address all your issues - and I didn't see the initial post....
...But some details would perhaps help.
 
What OS/Distro, and version? (debian, cent os, ubuntu etc, / 20.04, 21.10 etc)
Did you install the distro packages for dhcpd, or compile your own? (or something else)
What version of dhcpd?
 
If you only answer some things - those above are the most important.
 
---
You mention "secondary" server. Does this mean just a second server (serving it's own ip block[s]), or a load-balanced/peer set of servers?
Running load-balancing/peer servers is quite a bit more complicated. (Lots of moving parts to go wrong, in weird ways, unanticipated corner cases etc.)
 
You say it's "working" - but how do you know it's working?
 
But I think getting the basics of what you've done and intend to do is a good place to start.
 
-Greg  

>         I posted previously about the issues I am having.  Nothing I tried, including completely purging and reinstalling isc-dhcp-server, would get DHCP to work on my secondary server, so I completely wiped the server and reloaded the OS.  The server is mostly working now, but there are still some annoying issues. Stopping, starting, and restarting the server don't quite work properly.

>         1.  Systemd reports a spurious error when starting the server from a clean slate.

>   isc-dhcp-server.service - LSB: DHCP server
>       Loaded: loaded (/etc/init.d/isc-dhcp-server; generated)
>       Active: failed (Result: exit-code) since Wed 2022-06-01 13:21:26 CDT; 1min 10s ago
>         Docs: man:systemd-sysv-generator(8)
>      Process: 19134 ExecStart=/etc/init.d/isc-dhcp-server start (code=exited, status=1/FAILURE)
>        Tasks: 4 (limit: 4461)
>       Memory: 4.8M
>          CPU: 124ms
>       CGroup: /system.slice/isc-dhcp-server.service
>   /usr/sbin/dhcpd -4 -q -cf /etc/dhcp/dhcpd.conf enp11s0

> Jun 01 13:21:24 Backup dhcpd[19159]:
> Jun 01 13:21:24 Backup dhcpd[19159]: exiting.
> Jun 01 13:21:26 Backup isc-dhcp-server[19134]: Starting ISC DHCPv6 server: dhcpd6check syslog for diagnostics. ...
> Jun 01 13:21:26 Backup isc-dhcp-server[19164]:  failed!
> Jun 01 13:21:26 Backup isc-dhcp-server[19165]:  failed!

>         It doesn't say what the error is, but the exit code is 1. This causes the system to think the server has failed to start, but it does load and remains in memory.  It seem to be working pretty well.  Is there some way to get the server to report a bit more in the way of diagnostics, perhaps in the log, or even just stderr?  Obviously, this isn't a show stopper, but it is a bit annoying, and it is possible there is something a bit more insidious going on.

>         I tried running the server from the CL with the -d option, but it doesn't produce any output.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.isc.org/pipermail/dhcp-users/attachments/20220601/123668ac/attachment-0001.htm>