How can I harden my Linux server before it goes to production?

Question by Big Joe: How can I harden my Linux server before it goes to production?
I have a linux RedHat Enterprise version 5.4 web server I would like to add in my network to host a website. Can anyone explain to me the steps I will need to take in order to harden my server?


Best answer:
Answer by Bobadd IPTables. block all ports that are not being used. run a Nessus scan. run a netstat to see what ports are listening and lock em down.Use Nessus for checking what services are waiting

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