To make your Linux server safer (to protect against SSH brute-force attacks), you can do the following to change SSH port.

vi /etc/ssh/sshd_config

change port from 22 to 2222

#Port 22
Port 2222

Then restart sshd

/etc/init.d/sshd reload

Use SSH:

ssh -p 2222 myservername

Use SCP:

scp -P 2222 myfile.txt me@myservername:/~/.

Technorati : Linux SSH Port, Protecting Against SSH Brute-Force Attacks

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