http://wiki.docking.org/index.php?action=history&feed=atom&title=DNS_NotesDNS Notes - Revision history2026-04-05T15:55:19ZRevision history for this page on the wikiMediaWiki 1.39.1http://wiki.docking.org/index.php?title=DNS_Notes&diff=13023&oldid=prevKhtang at 22:23, 16 October 20202020-10-16T22:23:08Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 22:23, 16 October 2020</td>
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</table>Khtanghttp://wiki.docking.org/index.php?title=DNS_Notes&diff=13022&oldid=prevKhtang: Created page with "'''Updated 10/16/2020''' EVERYTHING ALPHA == Troubleshooting == '''PLEASE MAKE BACKUP BEFORE YOU EDIT ANY FILE!!!''' === Broken DNS Bind/named service === $ nslookup <server..."2020-10-16T22:22:19Z<p>Created page with "'''Updated 10/16/2020''' EVERYTHING ALPHA == Troubleshooting == '''PLEASE MAKE BACKUP BEFORE YOU EDIT ANY FILE!!!''' === Broken DNS Bind/named service === $ nslookup <server..."</p>
<p><b>New page</b></p><div>'''Updated 10/16/2020'''<br />
EVERYTHING ALPHA<br />
== Troubleshooting ==<br />
'''PLEASE MAKE BACKUP BEFORE YOU EDIT ANY FILE!!!'''<br />
=== Broken DNS Bind/named service ===<br />
<br />
$ nslookup <server_name><br />
;; Got SERVFAIL reply from XX.XX.X.X, trying next server -> This means alpha is not about to resolve db.cluster.ucsf.bkslab.org file <br />
$ nslookup <IP Address><br />
;; Got SERVFAIL reply from XX.XX.X.X, trying next server -> This means alpha is not about to resolve db.20.10.in-addr-arpa file for reverse ip > name lookup<br />
<br />
This is caused by broken db files in /var/named/dynamic either from incorrect syntax (space instead of tab) or mismatched serial number between .jnl file and db.* file when you manually edit those db.* files. <br />
<br />
when run <br />
$ rndc reload <br />
You will see these error in the log in /var/log/named/default.log<br />
16-Oct-2020 14:00:21.271 general: error: zone cluster.ucsf.bkslab.org/IN: journal rollforward failed: journal out of sync with zone<br />
16-Oct-2020 14:00:21.271 general: error: zone cluster.ucsf.bkslab.org/IN: not loaded due to errors.<br />
16-Oct-2020 14:00:21.272 general: info: zone desktop.ucsf.bkslab.org/IN: loaded serial 157<br />
<br />
What to do:<br />
Save a back up and Make sure the syntax on db.cluster.ucsf.bkslab.org or db.20.10.in-addr-arpa is correct (remember to change the serial number)<br />
rm db.cluster.ucsf.bkslab.org.jnl<br />
rm db.20.10.in-addr-arpa.jnl<br />
rndc reload <br />
service named restart</div>Khtang