Hello all
I am new to firewalls.I am working on installing some firewall.
Well we have RH5.0 and qpopper as our mail server. In netstat command in foreign address I see different addressess. For example when I give "netstat -a" I get the entries as follows.
Proto Recv-Q Send-Q Local address foreign Address state
tcp 0 0 Our mail address:ftp camb0030.capecod.net:3115 established
Well My worry is , whether the foreign address entry is unauthorisedly using my server. How can I find out and how can I kill this connection. When I ping to the following address it gives request timed out.
Can someone help me or give the URL where this is explained?
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