If you want to block a certain computer from accessing the internet, then this blog will guide you on how to it on ipfire firewall. Of course, that computer must belong on the ipfire network to make this one works. Here is how you block computer or pc on browsing the internet.
Prevent Computer Access To The Internet
Go to IpFire web configuration. Then Add a Firewall Rule. This rule is the one that will block a certain computer from accessing the internet. To setup a firewall rule for blocking internet access, Follow the steps bellow.
Open Firewall > Firewall Rules and create a New Rule.
On the source portion, type the MAC or IP Address of the computer you want to block internet access.
Open Firewall > Firewall Rules and create a New Rule.
On the source portion, type the MAC or IP Address of the computer you want to block internet access.
On the destination portion, select Standard Network and choose Any. And make sure the Block radio button is tick.
Then click on Add button at the bottom to add the new firewall rule on block a certain computer from accessing the internet. Then test if your configuration really works. Go to that computer and access any websites if you can still open any web pages. If not, your configuration is successful.