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Redhat9 router...

learner79
learner79 asked
on
Medium Priority
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Last Modified: 2010-03-18
I have succesfully setup a linux router by using 2 NIC and share the internet between them...all my pc client are gateway to my 2nd NIC where the 1st NIC is directly to Internet Connection..

2nd NIC
: ip - 192.168.168.1
  netmask - 255.255.255.0

ip client will be - 192.168.168.X
netmask - 255.255.255.0
gateway - 192.168.168.1

the first question is how to block the internet connection from my linux to the specific client in my network such as his ip is 192.168.168.10

the second question is how to block mirc port, my client always wasting time to chit chat while working...so I want to block the mirc port which will blocked the connection to mirc server...all this i want to do from linux..

thanks

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Commented:
Just block the port that mirc is using in the firewall its usaly port 6667 or 6666 i think but its possible to work this around anyway, so if you have good employees they will find a way to chat anyway :)

The dont alow internet have the same solution use a firewall to block the specific ip to connect trough the server what system are you using and what is your config for the internet sharing ?

/Rob

Author

Commented:
my server is using Redhat9 and other client are XP...my server using 3 NIC where 1st NIC is connected to modem, 2nd NIC connected to Office LAN and 3rd NIC is connected to Access Point. I'm using IPTABLES

how to block temporary the internet connection to spesific client in my network from spesific command from Redhat? such as "shutdown clientIP" is that possible?

Author

Commented:
or what is the command line in redhat9 to disable the eth1(office lan) in X Window?
Commented:
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Author

Commented:
i will try...thanks rob

Author

Commented:

i try this "iptables -A FORWARD -s (ip of the host not allowed on the net) -j DROP" it's works...but how to make it back to normall again?

Author

Commented:
any help?

Author

Commented:
rob?

Commented:
iptables -D FORWARD -s (ip of the host not allowed on the net) -j DROP

Commented:
This will delete the rule
/Rob

Author

Commented:
Thank you so much...

Commented:
im happy to help
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