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I'm running on Ubuntu and I'm currently on linode [Disclosure: Referral Link]. I have followed this tutorial and have successfully set up Virtualmin on my linode and its a breeze creating websites and managing domains using the Virtualmin panel:

However, I'm a little worried about the security of my server. I am not proficient with Linux stuff. SSH is enabled. What steps do I need to take to keep my server safe from hackers and exploiters? Any suggestions would be much appreciated. Thank you.

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up vote 3 down vote accepted

There's a decent article from linode on this topic:

Hope that helps!

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Thank you! I was stupid enough to ignore the Linode Library xD – dsignr Apr 10 '11 at 9:49
Yeah the linode library has a lot of good stuff in it. IMO though some of these security recommendations are a bit pointless when the Linode admin tool (which gives access to everything) does not implement them (pure username/password). – UpTheCreek Mar 21 '13 at 12:19

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