Problem with bind 9.2.1 on a HPUX machine

[puka]

Hello, 

  I am running a cache only named in one hpux A400 server with 256Mb memory. 
The server is receiving about 300 requests per second. 

  Few days ago the number of requests increase and i started to have 
problems with name resolution. The named still up and running and the cpu 
very low(about 5%). The memory usage is also ok, but the bind stop to answer 
user requests. After stop and start bind again the system work again for 
some days but when it receive high load it stop resolving. This is happening 
specially during the high load times. 

  I was also getting a lot of "cache update denied messages in the log". 
Then i start to send the security messages to "null" 

30 12:59:43 resolve1 named[1074]: Sep 30 12:59:43.445security: info: client 
65.216.72.15#55555: query (cache) denied
Sep 30 12:59:43 resolve1 named[1074]: Sep 30 12:59:43.811security: info: 
client 200.163.200.57#15701: query (cache) denied
Sep 30 12:59:46 resolve1 named[1074]: Sep 30 12:59:46.805security: info: 
client 200.163.200.57#15701: query (cache) denied
Sep 30 12:59:49 resolve1 named[1074]: Sep 30 12:59:49.813security: info: 
client 200.163.200.57#15701: query (cache) denied
Sep 30 12:59:52 resolve1 named[1074]: Sep 30 12:59:52.814security: info: 
client 200.163.200.57#15701: query (cache) denied 


  Anybody else notice the same problem with bind running on a HPUX machine? 
Is there something wrong with my config's? 

  Any help whould be very appreciated. 


root:resolve1>netstat -p udp
udp:
       0 incomplete headers
       1319 bad checksums
       98183 socket overflows
root:resolve1> 

Oct  7 10:59:13 resolve1 named[12610]: starting BIND 9.2.1 -c 
/etc/named.conf -u named -t /usr/local/bind/
Oct  7 10:59:13 resolve1 named[12610]: using 1 CPU
Oct  7 10:59:14 resolve1 named[12610]: loading configuration from 
'/etc/named.conf'
Oct  7 10:59:14 resolve1 named[12610]: no IPv6 interfaces found
Oct  7 10:59:14 resolve1 named[12610]: listening on IPv4 interface lan0, 
200.175.5.139#53
Oct  7 10:59:14 resolve1 named[12610]: could not listen on UDP socket: 
address in use
Oct  7 10:59:14 resolve1 named[12610]: creating IPv4 interface lan0 failed; 
interface ignored
Oct  7 10:59:14 resolve1 named[12610]: not listening on any interfaces
Oct  7 10:59:14 resolve1 named[12610]: no source of entropy found
Oct  7 10:59:14 resolve1 named[12610]: Oct 07 10:59:14.136general: info: 
zone 0.0.127.in-addr.arpa/IN: loaded serial 2001011701
Oct  7 10:59:14 resolve1 named[12610]: Oct 07 10:59:14.150general: info: 
running
Oct  7 11:02:34 resolve1 named[12603]: Oct 07 11:02:34.420general: info: 
loading configuration from '/etc/named.conf'
Oct  7 11:02:34 resolve1 named[12603]: Oct 07 11:02:34.424network: info: no 
IPv6 interfaces found 


#======================================================
# named.conf for dbfiles directory.
#
# NOTE: Comments in this file begin with a # symbol.
#
# NOTE: Remember we're chrooted.  Don't break the paths
#       below by forgetting that.
#====================================================== 

# Resolvera nomes apenas para IPs do AS da GVT - Flavio.Negrao 15/12/00
acl gvt_as { 200.175.0.0/18; 200.175.64.0/18; 200.175.128.0/18; }; 

controls { }; 


logging {
       channel named_info {
               syslog;
               print-category yes;
               print-severity yes;
               print-time yes;
           }; 

       category client { named_info; };
       category config { named_info; };
       category default { named_info; };
       category general { named_info; };
       category notify { named_info; };
       category network { named_info; };
       category update { named_info; };
       category queries { named_info; };
       category xfer-in { named_info; };
       category xfer-out { named_info; };
       category security { null; };
       category lame-servers { null; };
       }; 


options {
       directory "/dbfiles";
       pid-file "/dbfiles/internal.pid";
	auth-nxdomain no;
       allow-query { gvt_as; };
       listen-on { 200.175.5.139; };
	allow-recursion { gvt_as; };
	allow-transfer { none; };
	notify no;	 


 	recursive-clients 25000;
       max-cache-size unlimited;
       max-ncache-ttl 172800; 


}; 


zone "0.0.127.in-addr.arpa" in {
       type master;
       file "db.127.0.0";
}; 

zone "." in {
       type hint;
       file "db.cache";
};