Linux - SecurityThis forum is for all security related questions.
Questions, tips, system compromises, firewalls, etc. are all included here.
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If I open my server to http/ssh requests, I was wondering if there was any way if someone could attack and gain access easier if I were to open it this way? Is there any way to prevent this? I have fail2ban and keys so far.
Problem here isn't the port but what you run on it. Any outdated CMS, forum, shopping cart, photo gallery or other software including themes, plug-ins, add-ons and whatnot will be probed for. Having fail2ban is good but mod_security, maybe a reverse proxy, but most of all preventing any situation from occurring or escalating should be common sense. So what will you be running?
a website (apache, or nginx), sftp, and that should be it.
Apache is an example of web server software. I mean web site software. Anyway, whatever CMS, forum or other software you'll be running: read its (security) documentation, keep everything up to date, harden, audit regularly, respond to reporting, use common sense.
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