How to block and Open port in SUSE 9.1 ?

[sothy]

Dear all member in Linux Forum

       i want to know that , How to block port and open port in SUSE 9.1 ?
Because now day i can't use port 23 (telnet) so i want to use port 23 . so how can i use comand or go to configure some where that can use port 23.and other port that we want to block and allow ........................



Regard
 
Sothy

[gauravbajaj]

You can open the specif ports in SUSE  by using yast command:---
yast-System-SuSefirewall2 and there is the option ogf port which u wana open ..just  give the port no's which u want to open,all others are closed by default

bye

gaurav bajaj

[sothy]

Thank you for your Answer
 
          But i still dont understand some command that i had to read befor like i saw it can block ip and allow ip  , and can block website like http , or ftp , how can we block it ? coul d you write down some command for block it ,


  Thank you for your time

Sothy