Selfhosted
A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.
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I am not a expert in Linux, and I mostly rely on very strong passwords. I also discovered recently basic stuff like changing the default SSH port. Anyone knows of implementation of 2FA on Linux?
Changing the default porta is security through obscurity, which is not security but just a waste of time. Don't rely on attackers "maybe not finding stuff" but rely on your stuff being secure, even if someone had all information about your network and system architecture.
For 2fa, the other commenter mentioned yubikey pam modules. Those are probably useful, but if you want to secure your ssh server, the best solution is to use ssh keys and disable password login. I can really recommend that as its one of the few things in security that improves both usability and security.
What's an ssh key? Nvm I'll research
Welcome to the top of cryptography. We have elliptic curves, crazy math and huge numbers.
If at all possible, do not expose things like ssh, RDP, etc to the internet. Use traditional VPN or something like tail scale. Just because ssh is on a different port than normal doesnt mean an attacker couldn't figure out that your running ssh on port 335.
Well fail2ban went from very active to very quiet. It is definitely worth not leaving 22 (when opening ssh is a must for different reasons)
Maybe you'd be interested in https://wazuh.com/
Not sure this is what I’m looking for as it appears to be an XDR SIEM vendor.
That's what modern endpoint security is, really. Traditional AV is dead. There are far too many people making malware for file signatures or heuristics to keep up. Instead, you want to look for behavior on the system and on the network. For example, if a program starts reading every file it can find on the network, and changing then from their current formats to unreadable blobs, that's probably ransomware and should be stopped. Plain old AV probably won't catch it on the client because of how frequently it gets modified (plus all the various evasion techniques), nor on the server because nothing unusual is running on the server.
I don't understand your intention, as for tips and hints and end you post on this line:
"Ps: if you have a different opinions than I do skip this post"
That's the perfect recipe for a circle jerk.