Self-Hosted Alternatives to Popular Services

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The original was posted on /r/selfhosted by /u/Educational-Ant-8749 on 2025-03-04 19:14:07+00:00.

I am running a Ubuntu VPS, with the following security optimizations. I was wondering how secure this is in general, as it gets about ~150 attacks per day*. So how large is the risk to get hacked?

• All ports closed, excluding SSH & minecraft
• Ports are secured with firewall
• Packages updates every week
• fail2ban with jail for ssh & minecraft
• Password login disabled, login only with key

I have not changed defaul ssh port and still using „root“ as defaul user.

• According to fail2ban I am getting ~150 bans per day for ssh port.

Anything else to get more security?