oninz,
try setting you firewall like this:
where:
-s = source
-d = destination
# for your FTP
ipchains -A input -s 0/0 -d 0/0 21 -p tcp -y -j REJECT
just make sure you know the protocols run by each
services you wanted to block. eg, port 53 (domain) its running both tcp
and udp protocols.
janjan
------------------------------------
Gene Frederick F. Boniel
Manager - Network Operation Center
Virtual Communications, Inc.
Rm. 202 K&J Bldg. Llorente St.
Brgy. Capitol Site, Cebu City
Philippines 6000
E-mail : [EMAIL PROTECTED]
Mobile : +63 916 3423122
Office : +63 032 2541954
On Fri, 15 Feb 2002, Alinmar Umlas wrote:
> Brothers,
> I set my own rule of firewall using ipchains, I try to issue my own
> rules with this line...
> ipchains -F
> ipchains -A input -s mynetwork/subnet -p TCP ACCEPT
> ipchains -A input -s 0/0 -p TCP DENY
>
> I know somethings wrong w/ my rules, how can i Deny only the port like
> (telnet or ftp) using ipchains?, the thing is, only the port 53, 21,22 that
> i just want to filtered out, how can i do this things without affecting
> others port using TCP protocol?
>
> oninz <--{^0^}
>
>
>
>
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