On 06/29/2017 06:24 PM, Doug wrote:
I tried to write this command to a root console in PCLInuxOS, but it got
rejected.
[root@linux1 doug]# iptables -t filter -A IN_public_deny -p tcp --dport
pop3s --syn -m recent --name pop3s_attack --rcheck --seconds 90
--hitcount 2 -j LOG --log-prefix 'SSH2 REJECT: ' --log-level info
iptables: No chain/target/match by that name
Obviously I'm doing something wrong. Do I need some file installed first?
If so, what file? Can you help me, please?
Just ignore all this iptables stuff. It is not at all useful for you.
Open the firewall configuration tool. In the Public zone, uncheck the
ssh service. Then in the Options menu, select "Runtime to Permanent" to
save the configuration change. That's all you need to do. By default
the firewall is quite secure, it just leaves the ssh port open.
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