Problem in TCP connection!!

[Amit Manna_6]

HI,,

One Server is facing problem responding to greater than 11 TCP requests. Also


Also it is is making DNS requests of which the DNS server is responding with an error to majority of requests. Out of 8300 only 1667 were valid resulting in 6634 request where the name is incorrect.



Any suggestions anybody

[Antonio Cardoso_1]

Amit,
can you tell a bit more on what errors are issued to what requests?

[rick jones]

Indeed, additional details would be very helpful. I'd start with:

netstat -p tcp > before
sleep 60
netstat -p tcp > after
beforeafter before after > delta

and then post delta. You can get beforeafter from:

ftp://ftp.cup.hp.com/dist/networking/tools/

As for the DNS requests, the resolver library in HP-UX only makes those queries asked of it, which means that some application on your system is initiating those queries. So, we need to figure-out what that application is, and then why it is making those queries.