Comments on: How to Restrict Network Access Using FirewallD

By: William Nolf

William Nolf — Wed, 03 Aug 2022 19:15:51 +0000

I have 3 network interfaces and would like to limit tftp to only one of the interfaces. For example, I have networks 192.168.100.0, 192.168.101.0, and 192.168.102.0. tftp should only be able to access the server via the 102 networks. Is this possible?

By: omavel

omavel — Tue, 01 Dec 2020 12:42:14 +0000

How to reject all connections and allow the only ssh from one certain network?

$ sudo firewall-cmd --zone=public --add-service=ssh
$ sudo firewall-cmd --zone=public --add-source=172.17.17.0/24
$ sudo firewall-cmd --runtime-to-permanent

Didn’t work, still can ping internets from the VM. Interface is in public zone.

By: roland

roland — Mon, 20 Jul 2020 12:12:49 +0000

Does this tool preclude the use of iptables?

By: Ravi Saive

Ravi Saive — Sat, 18 Jul 2020 05:14:21 +0000

In reply to David.

@David,

My bad, yes I must cross-check commands before publishing an article, thanks man, I’ve corrected the commands in the article…

By: Ravi Saive

Ravi Saive — Sat, 18 Jul 2020 05:12:32 +0000

In reply to Sven.

@Sven,

Sorry for that, I’ve corrected the commands in the article…