I just move the SSH port to something really far off the beaten path I used to get >2000+ failed attempts per day. I've had no problems with those (other than me mistyping my password), since then.
Alright, so I followed everyone's advice and a tutorial I found [1] and locked things down much tighter. After changing the ssh port I am unable to log in though. I restarted the sshd daemon and opened that port in iptables.
I am trying to log in with: ssh -p <new port> <user>@<server> The command that I tried to use to open the port is:/sbin/iptables -A INPUT -p tcp --syn --destination-port <new port -j ACCEPT
/sbin/iptables -A INPUT -p tcp --syn -j DROP A friend said that FC3's are in /etc/sysconfig/ though, so I tried:/etc/sysconfig/iptables -A INPUT -p tcp --syn --destination-port 22 - j ACCEPT
/etc/sysconfig/iptables -A INPUT -p tcp --syn -j DROP…but get a permission denied error… which is strange because I was running the command as root.
Anyone have any ideas what I am missing? [1] http://aymanh.com/tips-to-secure-linux-workstation
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