nisamudeen97

Well-Known Member
Jul 7, 2010
55
5
58
Cochin
cPanel Access Level
Root Administrator
Hi,

We have cpanel dns only cluster running for our ns1 and ns2. We could see the below error in "/var/log/messages" of ns2 server, which is Centos 7.7 cpanel dns only server.

Oct 14 19:41:18 ns2 named[21919]: ../../../../lib/isc/unix/socket.c:5682: unexpected error:
Oct 14 19:41:18 ns2 named[21919]: ../../../../lib/isc/unix/socket.c:5682: unexpected error:
Oct 14 19:41:18 ns2 named[21919]: ../../../../lib/isc/unix/socket.c:5682: unexpected error:
Oct 14 19:41:18 ns2 named[21919]: ../../../../lib/isc/unix/socket.c:5682: unexpected error:
Oct 14 19:41:18 ns2 named[21919]: ../../../../lib/isc/unix/socket.c:5682: unexpected error:
Oct 14 19:41:18 ns2 named[21919]: ../../../../lib/isc/unix/socket.c:5682: unexpected error:
Oct 14 19:47:17 ns2 named[22141]: ../../../../lib/isc/unix/socket.c:5682: unexpected error:
Oct 14 19:47:17 ns2 named[22141]: ../../../../lib/isc/unix/socket.c:5682: unexpected error:
Oct 14 19:47:17 ns2 named[22141]: ../../../../lib/isc/unix/socket.c:5682: unexpected error:
Oct 14 19:47:17 ns2 named[22141]: ../../../../lib/isc/unix/socket.c:5682: unexpected error:
Oct 14 19:47:17 ns2 named[22141]: ../../../../lib/isc/unix/socket.c:5682: unexpected error:
Oct 14 19:47:17 ns2 named[22141]: ../../../../lib/isc/unix/socket.c:5682: unexpected error:
Oct 14 19:47:17 ns2 named[22141]: ../../../../lib/isc/unix/socket.c:5682: unexpected error:
Oct 14 19:47:17 ns2 named[22141]: ../../../../lib/isc/unix/socket.c:5682: unexpected error:



While checking the named service status. I can see service running but there is errors. We can see dns failures on random checks. Is it related to this?
How we can solve the issue?


Code:
service named status

Redirecting to /bin/systemctl status named.service

● named.service - Berkeley Internet Name Domain (DNS)

   Loaded: loaded (/usr/lib/systemd/system/named.service; enabled; vendor preset: disabled)

  Drop-In: /etc/systemd/system/named.service.d

           └─cpanel.conf

   Active: active (running) since Mon 2019-10-14 19:41:18 UTC; 3s ago

  Process: 21902 ExecStop=/bin/sh -c /usr/sbin/rndc stop > /dev/null 2>&1 || /bin/kill -TERM $MAINPID (code=exited, status=0/SUCCESS)

  Process: 21918 ExecStart=/usr/sbin/named -u named -c ${NAMEDCONF} $OPTIONS (code=exited, status=0/SUCCESS)

  Process: 21914 ExecStartPre=/bin/bash -c if [ ! "$DISABLE_ZONE_CHECKING" == "yes" ]; then /usr/sbin/named-checkconf "$NAMEDCONF"; else echo "Checking of zone files is disabled"; fi (code=exited, status=0/SUCCESS)

Main PID: 21919 (named)

   CGroup: /system.slice/named.service

           └─21919 /usr/sbin/named -u named -c /etc/named.conf


Oct 14 19:41:18 ns2 named[21919]: automatic empty zone: view internal: 8.B.D.0.1.0.0.2.IP6.ARPA

Oct 14 19:41:18 ns2 named[21919]: automatic empty zone: view internal: EMPTY.AS112.ARPA

Oct 14 19:41:18 ns2 named[21919]: automatic empty zone: view internal: HOME.ARPA

Oct 14 19:41:18 ns2 named[21919]: none:104: 'max-cache-size 90%' - setting to 3686MB (out of 4096MB)

Oct 14 19:41:18 ns2 named[21919]: set up managed keys zone for view external, file 'external.mkeys'

Oct 14 19:41:18 ns2 named[21919]: none:104: 'max-cache-size 90%' - setting to 3686MB (out of 4096MB)

Oct 14 19:41:18 ns2 named[21919]: ../../../../lib/isc/unix/socket.c:5682: unexpected error:

Oct 14 19:41:18 ns2 named[21919]: setsockopt(28, TCP_FASTOPEN) failed with Protocol not available

Oct 14 19:41:18 ns2 named[21919]: command channel listening on 127.0.0.1#953

Oct 14 19:41:18 ns2 systemd[1]: Started Berkeley Internet Name Domain (DNS).
 

cPanelLauren

Product Owner
Staff member
Nov 14, 2017
13,295
1,272
313
Houston
Can you please open a ticket using the link in my signature? Once open please reply with the Ticket ID here so that we can update this thread with the resolution once the ticket is resolved.


Thanks!