5
votes
2answers
2k views

Preventing program from using internet

Is there a way to block certain programs from being able to connect to the internet in Debian (a firewall blocking outgoing connections), so for example, to block a windows program running in wine ...
3
votes
2answers
779 views

How to check and block processes connecting to internet directly?

Is there a way to find which processes in my system are getting connected to net automatically. Is there a way to select and block net access of some processes permanently? I use mint 11. I use a USB ...
1
vote
2answers
782 views

iptables rule for local network with free internet blocking unrequested connection from internet to server?

I have a home server (with slackware 13) with a eth0 for the local network and a eth1 for the internet (cable modem with dynamic ip). While I do want to learn more about iptables I am still on the ...
4
votes
3answers
313 views

Is it possible to simulate “no external access” from a Linux machine when developing?

Sometimes I upload an application to a server that doesn't have external internet access. I would like to create the same environment in my machine for testing some features in the application and ...