Package: isc-dhcp-server
Version: 4.3.5-3+deb9u1
Severity: normal
Dear Maintainer,
After a reboot I found isc-dhcp-server wasn't running because dhcpd
was started before named wrote out session.key (included for ddns).
I have ddns enabled with the following included in
/etc/dhcp/dhcpd.conf
include "/var/run/named/session.key";
I see /etc/init.d/isc-dhcp-server has $named listed in Should-Start,
but apparently that's not sufficient with systemd, I expect dhcpd
takes less time to start compared with the multiple domains named is
serving on the system.
# Should-Start: $local_fs slapd $named
I added the following loop to the default file, I'm not sure the best
way to properly handle this.
/etc/default/isc-dhcp-server
# delay watching for the session.key file to appear from named for ddns
include="/var/run/named/session.key"
i=0
while [ "$1" = "start" -a $i -lt 30 -a ! -e "$include" ] ; do
echo "waiting on $include"
i=$(($i+1))
sleep 1
done
unset include i
Here are the relevant parts of the system log file showing dhcpd
not finding session.key, then a second later named starts.
Oct 31 08:17:24 localhost dhcpd[1933]: Internet Systems Consortium DHCP Server
4.3.5
Oct 31 08:17:24 localhost dhcpd[1933]: Can't open /var/run/named/session.key:
No such file or directory
Oct 31 08:17:24 localhost dhcpd[1933]: exiting.
Oct 31 08:17:24 localhost systemd[1]: isc-dhcp-server.service: Control process
exited, code=exited status=1
Oct 31 08:17:24 localhost systemd[1]: Failed to start LSB: DHCP server.
Oct 31 08:17:24 localhost systemd[1]: isc-dhcp-server.service: Unit entered
failed state.
Oct 31 08:17:24 localhost sh[1883]: Restarting isc-dhcp-server (via systemctl):
isc-dhcp-server.serviceJob for isc-dhcp-server.service failed because the
control process exited with error code.
Oct 31 08:17:24 localhost sh[1883]: See "systemctl status
isc-dhcp-server.service" and "journalctl -xe" for details.
Oct 31 08:17:24 localhost systemd[1]: isc-dhcp-server.service: Failed with
result 'exit-code'.
Oct 31 08:17:25 localhost named[2048]: starting BIND 9.10.3-P4-Debian
<id:ebd72b3> -f -u bind
Oct 31 08:17:25 localhost named[2048]: loading configuration from
'/etc/bind/named.conf'
Oct 31 08:17:26 localhost named[2048]: running
-- System Information:
Debian Release: 9.5
APT prefers stable
APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.19.0+ (SMP w/4 CPU cores)
Locale: LANG=C, LC_CTYPE=en_US.ISO-8859-15 (charmap=ISO-8859-15), LANGUAGE=C
(charmap=ISO-8859-15)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages isc-dhcp-server depends on:
ii debconf [debconf-2.0] 1.5.61
ii debianutils 4.8.1.1
ii libc6 2.24-11+deb9u3
ii libdns-export162 1:9.10.3.dfsg.P4-12.3+deb9u4
ii libirs-export141 1:9.10.3.dfsg.P4-12.3+deb9u4
ii libisc-export160 1:9.10.3.dfsg.P4-12.3+deb9u4
ii lsb-base 9.20161125
Versions of packages isc-dhcp-server recommends:
ii isc-dhcp-common 4.3.5-3+deb9u1
pn policycoreutils <none>
Versions of packages isc-dhcp-server suggests:
pn isc-dhcp-server-ldap <none>
ii policykit-1 0.105-18
-- Configuration Files:
/etc/dhcp/dhcpd.conf changed [not included]
/etc/dhcp/dhcpd6.conf changed [not included]
-- debconf information excluded
