Networking?

[Josee Bourget-Thuma]

Getting the following error in syslog:

Err/TO getting serial# for "server name"
named-xfer[number]: [I/P address] not authoritative for "server name", SOA query got rcode 0, aa 0, ancount 0, aucount 9

Haven't found any reference to this on ITRC. Anyone please? Thanks a lot!

[Berlene Herren]

It seems you have configuration problems in your database, probably the primary DNS. Make sure, in the db.cache file (pointers to root nameservers) you do not have an entry that points back to itself.

Also, if you have underscores in your hostnames, put these three lines at the beginning of named.boot:

check-names primary warn
check-names secondary warn
check-names response warn

Another thing to check is your HINFO lines.

RFC 1034 states that an HINFO record requires two strings.
Example of Invalid HINFO Record:
Test IN HINFO "WWW Server"
Example of Valid HINFO Record:
Test IN HINFO "WWW Server" "Customer Sites

/usr/share/doc/bog.txt (supplied in compressed format) is the BIND Operations Guide. Section 6.5.6 on HINFO Shows the format:

{name} {ttl} addr-class HINFO Hardware OS

Berlene

[Josee Bourget-Thuma]

Thanks Berlene for this info. How would you explain the fact that I don't have a db.cache file yet have name server setup? I'm very green in the DNS topic. The bog.txt file was very informative. Thanks again. Josee

[Berlene Herren · Accepted solution]

Maybe we should go through the setup again. I attached a document that may help.

Berlene

[Josee Bourget-Thuma]

The document helped me comfirm that this server shouldn't have been setup as secondary DNS in the first place.(before me) My first experience with the forum has been very rewarding. Thanks a lot Berlene.

Josee

[Josee Bourget-Thuma]

Is there a way to determined what the traffic was while on DNS? Just curious to know how much performance increase I should expect. Thanks again.

Josee

[Berlene Herren]

Try running
#sig_named dump
You'll then have a file called /var/tmp/named_dump.db
It's a list of all learned names/ip-addresses

Berlene

[Bill Hassell]

If you want to see the stats on named (ie, requests for resolution), you can signal named with SIGIOT or turn on tracing with SIGUSR1 and off with SIGUSR2. The results are appended to the file /var/tmp/named.stats. You can also use the script sig_named to send the signals without having to track down the PID of named. Note that a busy nameserver will generate a lot of data in a short time.

To start a trace:

cat /dev/null > /var/tmp/named.stats
sig_named debug 1

wait a few minutes, then

sig_named debug 0

This often turns up some intersting situations such as network backup software that asks for an IP address for every file being backed up.

[Josee Bourget-Thuma]

Thank you both for the info.

It's noted for future use. I obviously couldn't not run this since I removed my server as DNS and it didn't work in the firts place.

Take care,
Josee