Odd DNS issue. Possible sub-interface problem.

Solokron

Well-Known Member
Aug 8, 2003
852
2
168
Seattle
cPanel Access Level
DataCenter Provider
I am having an odd problem with sites not loading up. It looks to be DNS or sub-interface related.


DNS Report for thedomain.com


Parent pass NS records at parent servers Your NS records at the parent servers are:

ns1-web01.domain.com. [ 209.55.123.45 ]
ns2-web01.domain.com. [ 209.55.123.46 ]
[These were obtained from k.gtld-servers.net.]
pass Glue at parent nameservers Parent nameservers (I checked with k.gtld-servers.net.) know A record for your domain, Very good !
NS info NS records at your nameservers Your NS records at your nameservers are:

209.55.123.45 Does not respond

209.55.123.46 Does not respond
pass Mismatched glue OK. The DNS report did not detect any discrepancies between the glue provided by the parent servers and that provided by your authoritative DNS servers.
pass No NS A records at nameservers OK. Your nameservers do include corresponding A records when asked for your NS records. This ensures that your DNS servers know the A records corresponding to all your NS records.
fail All nameservers report identical NS records ERROR. The NS records at all your nameservers are different, check the info above for details.
fail All nameservers respond ERROR: some nameservers does not respond
ns2-web01.domain.com. [209.55.123.46] does not respond


I have performed:

cd /etc/sysconfig/network-scripts
chkconfig --levels 345 network on
service network restart
/etc/init.d/ipaliases start
/sbin/ifconfig -a

Everything looks great there.


/etc/init.d/named restart

restarts fine.

service named status

number of zones: 27
debug level: 0
xfers running: 0
xfers deferred: 0
soa queries in progress: 0
query logging is OFF
server is up and running
named (pid 10306) is running...


From another server:
[email protected] [~]# dig thedomain.com

; <<>> DiG 9.3.4-P1 <<>> thedomain.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 36793
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 2

;; QUESTION SECTION:
;thedomain.com. IN A

;; ANSWER SECTION:
thedomain.com. 14290 IN A 209.55.123.44

;; AUTHORITY SECTION:
thedomain.com. 86290 IN NS ns2-web01.domain.com.
thedomain.com. 86290 IN NS ns1-web01.domain.com.

;; ADDITIONAL SECTION:
ns1-web01.domain.com. 14290 IN A 209.55.123.45
ns2-web01.domain.com. 14290 IN A 209.55.123.46

;; Query time: 62 msec
;; SERVER: 207.218.192.38#53(207.218.192.38)
;; WHEN: Sat Jan 3 14:02:50 2009
;; MSG SIZE rcvd: 147


I don't know where to go on this one.
 
Last edited:

Solokron

Well-Known Member
Aug 8, 2003
852
2
168
Seattle
cPanel Access Level
DataCenter Provider
Looks like the latest CSF update caused the issue. Removing it and rebuilding it corrected the issue.