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Considerations for a homeserver thats open to the internet? (Jellyfin / Nextcloud) (lemmy.world)

submitted 11 months ago by HamalaKarris@lemmy.world to c/selfhosted@lemmy.world

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Hey guys,

after reading up on selfhosting for weeks now I finally decided to take the plunge today and tried setting up my own nextcloud & jellyfin instances. For this purpose I am using a mini PC. (similiar to an Intel NUC)

Now I would like to make both services available to the internet so I could show images to friends while I'm at their place / watch movies with them.

The problem is I am currently not very educated on which security measures I would have to take to ensure that my server / mini PC doesn't immediately become an easy target for a hacker, especially considering that I would host private photos on the nextcloud.

After googling around I feel like I find a lot of conflicting information as well as write-ups that I don't fully grasp with my limited knowledge so if you guys have any general advice or even places to learn about all these concepts I would be absolutely delighted!

Thank you guys sooo much in advance for any and all help, the c/selfhosted community has been nothing but a great resource for me so far!!!

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[-] u_tamtam@programming.dev 19 points 11 months ago

As soon as you put something up online, you will de facto become a target with nowhere to hide except offline. Your IP will be known and constantly hammered by more or less serious threats.

If you don't know the basics of Linux system administration and typical security measures, I would propose 2 approaches: you can go "the NAS way" and purchase something turnkey like a Synology (or anything on which you can easily spin up containers to host your services). You can expect a large part of the administration to be taken care of with sound default settings.

Another approach is to use a beginner friendly distro like https://yunohost.org/ , perhaps more involving, more risky, bit more rewarding.

Also, don't put anything up there like personal or valuable information (except if encrypted with local-only keys), expect to be hacked, expect to be wiped, and think early on about (off-site) backups.

[-] gornius@lemmy.world 1 points 11 months ago

Yup, if you have SSH service open on port 22, you're automatically spammed by bots trying to brute force their way onto the system.

[-] u_tamtam@programming.dev 1 points 11 months ago

They'll brute force ssh against any port, tbf, changing 22 to something else will not buy you much :)

this post was submitted on 02 Aug 2023

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