Automatically capture VPN on Root.

2-5 People dos my server all times and other want hack my system (
Jan 15 04:29:21 root sshd[------]: Failed password for root from 88.150.230.42 port 36453 ssh2
Jan 15 04:29:21 root sshd[------]: Connection closed by 88.150.230.42 [preauth])

How can i ban
Automatic VPNs?
i dont want write all times iptables iptables -A INPUT -s 88.150.230.42 -j DROP.
Greets stauffi

You can not detect who's behind a VPN so you can not automatically ban an VPN.

As for the above problem, advise: do some research on google, look up more info on fail2ban, it's quite good.

Just for the impatient:

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sudo apt-get install fail2ban 


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// Edit

As well you can use ssh authentication which is waaay much more secure then a normal login/password method of connecting to your server as a root.

Does your ssh still run on the default port? (22) (if yes, try changing it in the config)

For that make a firewall:

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vi /etc/init.d/firewall 


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iptables -I INPUT -s 88.150.230.42 -j DROP 


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chmod +x /etc/init.d/firewall 


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/etc/init.d/firewall 


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i changed the SSH Port
I hope its help.
thx Yuri,Mitch & thoumta :)
Greets