Thursday, 21 March 2013

Best way to use SSH on a Linux server?

I'm new to Linux servers and SSH. Currently I have a basic Ubuntu (server edition) setup running SSH. I have not setup DSA keys or anything. Just a standard configuration.

Is it safe to open the SSH port on my router so that I can access my linux server from other locations using SSH?

What steps should I take before allowing access to my server via SSH over the internet?

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia…).

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