What Firewall do you have configured? And what rules?

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#1

Be specific about the rules :slight_smile:

I’m running iptables with most rules (some modified, some not) from:

https://wiki.archlinux.org/index.php/Simple_stateful_firewall#Firewall_for_a_single_machine

https://www.digitalocean.com/community/articles/how-to-setup-a-basic-ip-tables-configuration-on-centos-6

#2

Hi
The ones defined via YaST → System /etc/sysconfig editor and YaST → Security and User → Firewall with allowed services of sshd and qsynergy…