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Posted by howtonetwork on September 4, 2007, 6:37 am
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On 31 Aug, 22:39, 93RX...@gmail.com wrote:
> Regarding TCP.IP ports. what ports should i disable and what ports
> should i keep open on a cisco router within my network.
Hi,
Nobody can tell you the answer to that question. What would you want
to go in/out of your network?
i would start with
www
pop3
dns
smtp
any bespoke apps you have
not sure if you need
ntp
snmp
any routing protcols
I would block everything else and then begin permitting in/out as and
when people complain
they can't access various services.
Paul
www.howtonetwork.net
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