[CentOS] Network Connection Card Problem?

Hi List,

My Mail/Proxy server has from time to time refuse to
accept accept network connection. If I restart the
network service, the service will again start to
accept connection but after some time will again
refuse connection. I use CentOS 4.5 with Squid,
DansGuardian, Postfix. Please can someone point me
what are the possible cause of this. Thank you.

junji
aisalen.wordpress.com
Linux Registered User #253162

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