| Tutorial details | |
|---|---|
| Difficulty | Easy (rss) |
| Root privileges | Yes |
| Requirements | dhcpd |
| Time | 1m |
Method#1: Find dhcpd PID and kill it
Type the following ps command to find dhcpd PID as root user:
# ps ax | grep dhcpd
Sample outputs:
USER PID %CPU %MEM VSZ RSS TT STAT STARTED TIME COMMAND
_dhcp 13420 0.0 0.1 588 568 ?? Ss 10:27PM 0:00.04 dhcpd re0
You need to kill that process with kill command.
# kill -9 13420
To start dhcpd, type the following commands:
# touch /var/db/dhcpd.leases
# dhcpd -q re0
Method #2: Say hello to /etc/rc.d/dhcpd script
You can skip all of the above commands. Use rc script as follows to start, stop, restart, and check dhcpd server on OpenBSD:
/etc/rc.d/dhcpd start
/etc/rc.d/dhcpd stop
/etc/rc.d/dhcpd restart
/etc/rc.d/dhcpd check
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Why would you kill -9? That should only be used when a process is not responding.
I’m using OpenBSD 6.0 and I know dhcpd is running (clients obtain leases), but I don’t have it on my list of processes:
root@openbsd /root# ps aux | grep dhcpd
root 49136 0.0 0.0 1996 1488 p0 R+ 12:10PM 0:00.00 grep dhcpd (z
How do I check it’s PID?
Not really sure why you asked this question the PID is in your comments 49136.
do a
/etc/rc.d/dhcpd check
/etc/rc.d/dhcpd restart
ps -axc | grep ‘dhcpd’ | sed -E ‘s/([^ ]+){1}.*/\1/’
That will give you your pid
Adrian, 49136 looks like PID for the “grep” command and not DHCPD. I ran into this a couple of times before.