[BlueOnyx:21456] centos 7.4: iptables & apf not active

[Maurice de Laat]

Hi list,

Last week I did the upgrade to centos 7.4, which eventually didn't succeed.
(see 
http://mail.blueonyx.it/pipermail/blueonyx/2017-September/058520.html 
for that)

After a successful yum update and a reboot, I noticed that iptables & 
apf where not active anymore. It didn't take that long for unwanted 
connections to get in.

The solution was as described on
https://www.eukhost.com/blog/webhosting/apf-unable-to-load-iptables-module-ip_tables/

Apparently, iptables is now a static kernel module.

You might want to check at your place if you experience the same.

Kind regards,

Maurice