best firewall solution?

I just recently upgraded to a dedicated server about a week ago and am already experiencing heavy abuse of my server ports.

There are a lot of firewall solutions out there, so I was wondering if I could get some advice from those who have worked with many different firewalls as to which is the best.

My server is a Red Hat Linux 7.2 system with ensim control panel. I need a firewall solution that will reside on the same server as my web sites and will provide as advanced protection as possible.

I am also on a tight budget right now so please suggest options price sensitive which I can employ immediately and then others you would recommend upgrading to once I have the money.

Thanks in advance,

-Joe Garis

 

 

 

 

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