Server refusing connections [closed]

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http://serverfault.com – Basically, nobody can establish a connection to anything I host. The website, teamspeak, and game servers. I think it may have something to do with the hosts file or network configuration, but I have tried most things to no avail. I did mess around with the hosts file, so it might still be messed up! I am running CentOS 6.2 64bit Edit: I am able to ssh into the server, and I can ping localhost/visit the website through local host, but not through remote connections from another computer. I don't believe it's a firewall because I have never had a firewall running. (HowTos)