Hello ports. I suddenly remarked a problem with medium loaded isc-dhcpd on my server.
The problem looked like this string in messages: Sep 18 11:59:37 helios dhcpd: Can't create new lease file: Permission denied So I looked in /var/db and that’s what I saw: $ ls -alh /var/db/dhcpd.leases* -rw-r--r-- 1 _isc-dhcp _isc-dhcp 179M Sep 19 14:50 /var/db/dhcpd.leases -rw-r--r-- 1 _isc-dhcp _isc-dhcp 59.5M Jul 4 15:40 /var/db/dhcpd.leases~ Seriously? On the net with 200 hosts? I just created dhcpd directory near this files and moved them into it, changed the owner to _isc_dhcp and restarted with flags: isc_dhcpd_flags="-user _isc-dhcp -group _isc-dhcp -lf /var/db/dhcpd/dhcpd.leases" After restarting files became dramatically thinner: $ ls -alh /var/db/dhcpd total 620 drwxr-xr-x 2 _isc-dhcp _isc-dhcp 512B Sep 19 15:10 . drwxr-xr-x 9 root wheel 512B Sep 19 14:43 .. -rw-r--r-- 1 _isc-dhcp _isc-dhcp 136K Sep 19 15:10 dhcpd.leases -rw-r--r-- 1 _isc-dhcp _isc-dhcp 168K Sep 19 15:10 dhcpd.leases~ Maybe it’s better to use it that way?