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how to create whitelist firewall for SSH connections using firewalld

asked 2017-02-24 21:06:16 +0000

fedoreo gravatar image

The first thing that happens to any new linux server brought online is a deluge of ssh dictionary attacks. The first firewall I usually put in place is an iptables firewall which drops port 22 and then whitelists our admin IPs. I can't find a way to do this with firewalld. I have found ways to create a whitelist for ALL connections, which I do not want to do. I only want to restrict port 22 connections.

Just when I was getting comfortable with iptables, it is being replaced with firewalld.

Please advise.

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answered 2017-02-25 23:39:45 +0000

You need to use Firewalld rich language to accomplish what you want with it. Look at https://fedoraproject.org/wiki/Featur...

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Asked: 2017-02-24 21:06:16 +0000

Seen: 269 times

Last updated: Feb 24 '17