Cacheing Server question

[Mike Smith]

 Hi all,

 Got a questions/problem with a cacheing only nameserver. I am getting tons of 
these errors in the logs. Should I be piping these to never-never land ?

===========================================================================
Dec 24 07:58:52 rdns01 named[16938]: sysquery: sendto([192.33.4.12].53): 
Connection refused
Dec 24 07:58:54 rdns01 named[16938]: ns_forw: sendto([206.48.145.19].53): 
Connection refused
Dec 24 07:59:01 rdns01 named[16938]: ns_resp: sendto([194.52.172.18].53): 
Connection refused
Dec 24 07:59:05 rdns01 named[16938]: ns_resp: sendto([196.3.64.1].53): 
Connection refused
Dec 24 07:59:07 rdns01 named[16938]: ns_resp: sendto([208.233.88.15].53): 
Connection refused
Dec 24 07:59:12 rdns01 named[16938]: Response from unexpected source 
([199.45.69.19].53)
Dec 24 07:59:19 rdns01 named[16938]: ns_resp: sendto([209.176.24.140].53): 
Connection refused
Dec 24 07:59:20 rdns01 named[16938]: ns_resp: sendto([195.128.64.3].53): 
Connection refused
Dec 24 07:59:25 rdns01 named[16938]: ns_forw: sendto([137.189.6.1].53): 
Connection refused
Dec 24 07:59:28 rdns01 named[16938]: ns_forw: sendto([204.152.184.64].53): 
Connection refused
Dec 24 07:59:29 rdns01 named[16938]: ns_forw: sendto([207.159.77.18].53): 
Connection refused
Dec 24 07:59:33 rdns01 named[16938]: bad referral (org !< CCHA-ASSOC.org)
===========================================================================

 Log files are growing like crazy....This doesn't seem to be a problem on this 
particular server...Or maybe it is...The named.conf is pretty generic.

===========================================================================
options {
        directory "/etc/named";
        /*
         * If there is a firewall between you and nameservers you want
         * to talk to, you might need to uncomment the query-source
         * directive below.  Previous versions of BIND always asked
         * questions using port 53, but BIND 8.1 uses an unprivileged
         * port by default.
         */
        // query-source address * port 53;
};

logging {
        category lame-servers { null; };
        category cname { null; };
};

zone "." {
        type hint;
        file "named.ca";
};

zone "0.0.127.in-addr.arpa" {
        type master;
        file "named.local";
};
===========================================================================

 This is one of many cacheing name servers.....All machines are 450Mhz with 
128M ram running RedHat 6.0.

 Any suggestions on tweaking the config for better performance would be great. 
Named seems to grow without bounds....Earlier named was hanging, looked to be 
snarfing all the memory....Should named die when it gets to say 124M ???

 Thanx in advance...

 - Mike