(SOLVED) Syslog NG Cacti Plugin - DNS bug

[zarahel]

Good afternoon to you all

I need your help


I´ve installed syslog-ng and it´s cacti plugin and it´s working fine, except for it´s name resolution.

For some reason it resolves some names, and doesn´t resolve others. I´m able to ping my hosts by their names without any problem, and I´ve set use_dns(yes) in syslog-ng.conf

I´ve done nslookup, and everything´s as it should.

Does anybody have any idea why syslog (or cacti) is resolving only some of my hosts names?

Any help is very apreciated.

Thkx

[zarahel]

Anybody has any idea?

[TheWitness]

Yes, this is a syslog-ng configuration issue. Please google it. I don't have the information off hand, or do I. Hold on...checking...checking...

Edit:

/etc/syslog-ng/syslog-ng.conf

Look for

Code: Select all

options {
    sync (0);
    time_reopen (10);
    log_fifo_size (1000);
    long_hostnames (off);
    use_dns (yes);
    use_fqdn (no);
    create_dirs (no);
    keep_hostname (yes);
};

Do the obvious. Then

Code: Select all

service syslog-ng restart

TheWitness

[zarahel]

TheWitness

No good...I´ve tried putting the settings same as you´ve posted, but no luck. I´m still having the same problem: for some hosts I get their names resolved, and for others I don´t.

[zarahel]

Ok, I figured out the problem.

The problem wasn´t in my syslog-ng, but in my DNS Server: syslog-ng does not resolve names of hosts set in reverse lookup zones.

If you have hosts in foward lookup zones it resolves the names with no problem, but if they are in reverse lookup zone, it only shows you the IP.

Solved.