Ubuntu
isc-dhcp package

  1. Bug #1448657
  2. Comment #16

Comment 16 for bug 1448657

Revision history for this message
Jeff Reeves (seveerrm) wrote :

I'm encountering the same thing on a fresh installation of Ubuntu 20.04.

Here is what happens right after a reboot:
jeff@bridges:~$ ll /run/ | grep dhcp
jeff@bridges:~$ sudo systemctl status isc-dhcp-server
[sudo] password for jeff:
● isc-dhcp-server.service - ISC DHCP IPv4 server
     Loaded: loaded (/lib/systemd/system/isc-dhcp-server.service; enabled; vendor preset: enabled)
     Active: active (running) since Tue 2020-04-28 23:59:43 MST; 11s ago
       Docs: man:dhcpd(8)
   Main PID: 1374 (dhcpd)
      Tasks: 4 (limit: 19047)
     Memory: 6.9M
     CGroup: /system.slice/isc-dhcp-server.service
             └─1374 dhcpd -user dhcpd -group dhcpd -f -4 -pf /run/dhcp-server/dhcpd.pid -cf /etc/dhcp/dhcpd.conf

Apr 28 23:59:44 bridges dhcpd[1374]:
Apr 28 23:59:44 bridges dhcpd[1374]: Listening on LPF/enp2s0/2c:60:0c:c6:a4:be/192.168.1.0/24
Apr 28 23:59:44 bridges sh[1374]: Listening on LPF/enp2s0/2c:60:0c:c6:a4:be/192.168.1.0/24
Apr 28 23:59:44 bridges sh[1374]: Sending on LPF/enp2s0/2c:60:0c:c6:a4:be/192.168.1.0/24
Apr 28 23:59:44 bridges sh[1374]: Sending on Socket/fallback/fallback-net
Apr 28 23:59:44 bridges sh[1374]: Can't create PID file /run/dhcp-server/dhcpd.pid: No such file or directory.
Apr 28 23:59:44 bridges dhcpd[1374]: Sending on LPF/enp2s0/2c:60:0c:c6:a4:be/192.168.1.0/24
Apr 28 23:59:44 bridges dhcpd[1374]: Sending on Socket/fallback/fallback-net
Apr 28 23:59:44 bridges dhcpd[1374]: Can't create PID file /run/dhcp-server/dhcpd.pid: No such file or directory.
Apr 28 23:59:44 bridges dhcpd[1374]: Server starting service.
jeff@bridges:~$ sudo systemctl restart isc-dhcp-server
jeff@bridges:~$ ll /run/ | grep dhcp
drwxr-xr-x 2 root root 60 Apr 29 00:00 dhcp-server/
jeff@bridges:~$ ll /run/dhcp-server/
total 4
drwxr-xr-x 2 root root 60 Apr 29 00:00 ./
drwxr-xr-x 39 root root 1140 Apr 29 00:00 ../
-rw-r--r-- 1 root root 5 Apr 29 00:00 dhcpd.pid

I can hardcode the PID file names like Nicorac above mentions, but I'd rather things just work out of the box without needing to apply random workarounds like that.