New to firewalld, and having an issue trying to emulate my old iptable ruleset.
Server has one network interface, which I usually only allow SSH in from certain IPs, I know I can do this with rich rules but have read that this is sub-optimal.
So, I created a new zone, ABCinternal, added a couple of source IPs that are allowed to SSH in, reloaded the firewall and IPs other than the ones listed can still SSH in - what am I missing here?
Hmm, can you check all active zones, if service ssh or port 22/tcp is present somewhere? You can do this by either running
and then for each zone listed
or by inspecting all xml-Files in /etc/firewalld/zones
I have added the interface, it's also in defined /etc/sysconfig/network-scripts/ifcfg-ens192, thinking that might be the issue but it made no difference.
You should remove any interface attributes from the ABCinternal zone or every ssh-connect arriving on one of the listed interfaces will be accepted.
I can't see any active services but ssh in your listings (because ABCinternal is the only active zone and it only accepts ssh). But let's say this machine is a webserver then you have to allow http in zone public in order for this to work.
Currently, all I need is ssh, and only from those IPs, hence why I only have ssh listed under the ABCinternal zone.
Previously I have removed the interface from the ABCinternal zone, so it was as below, but it made no difference.
As I see it, I have a single zone configured, ABCinternal, that is active, and should only allow the 2 source IPs listed to ssh in, but it allows any IP to ssh in. I'm obviously not "getting" something but not sure what!
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