Where to learn about linux servers? [closed]

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http://unix.stackexchange.com – As you know many hosting providers provide many types of systems for their servers. I'm in a shared hosting and I know how to use the cPanel but now I want to move maybe to VPS or dedicated server and I don't have any idea about how to manage the server. Is it difficult? Will I have a cPanel? is it same as the one in shared hosting? It would be helpful if you know any online tutorials about this? Update: I will put on the server a dynamic site (forums, blogs, etc) so there will be databases. But I have heared that the server needs to be managed and I'm not sure is that easy like the shared (HowTos)