What’s your go too (secure) method for casting over the internet with a Jellyfin server.
I’m wondering what to use and I’m pretty beginner at this
this post was submitted on 26 Jun 2025
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Nginx in front of it, open ports for https (and ssh), nothing more. Let's encrypt certificate and you're good to go.
I would not publicly expose ssh. Your home IP will get scanned all the time and external machines will try to connect to your ssh port.
fail2ban with endlessh and abuseipdb as actions
Anything that's not specifically my username or git gets instantly blocked. Same with correct users but trying to use passwords or failing authentication in any way.
Youve minimized login risk, but not any 0 days or newly discovered vulnerabilites in your ssh server software. Its still best to not directly expose any ports you dont need to regularly interact with to the internet.
Also, Look into crowdsec as a fail2ban replacement. Its uses automatically crowdsourced info to pre block IPs. A bit more proactive compared to abuseipdb manual reporting.
Sorry, misunderstanding here, I'd never open SSH to the internet, I meant it as "don't block it via your server's firewall."
They can try all they like, man. They're not gonna guess a username, key and password.
Only the failed attempts could be a Denial Of Service and throw you out. So, at least add an ever increasing delay to those. Fail2ban is important.
Doesn't take that to leverage an unknown vulnerability in ssh like:
https://blog.qualys.com/vulnerabilities-threat-research/2024/07/01/regresshion-remote-unauthenticated-code-execution-vulnerability-in-openssh-server
That's why it's common best practice to never expose ssh to raw internet if you can help it; but yes it's not the most risky thing ever either.
If you're going to open something, SSH is far, far more battle-tested than much other software, even popular software. Pragmatically, If someone is sitting on a 0-day for SSH, do you genuinely think they're gonna waste that on you and me? Either they're gonna sell it to cash out as fast as possible, or they'll sit on it while plotting an attack against someone who has real money. It is an unhealthy level of paranoia to suggest that SSH is not secure, or that it's less secure than the hundreds of other solutions to this problem.
Here is my IP address, make me eat my words.
2a05:f6c7:8321::164 | 89.160.150.164
Are you giving random strangers legal permission to pentest you? That's bold.
You got balls to post you public addresses like that... I mean I agree with you wholeheartedly and I also have SSH port forwarded on my firewall, but posting your public IP is next-level confidence.
Respect.
That is some big dick energy ngl
I linked a relevant vulnerability, but even ignoring that, pragmatically, you feel they'd be targeting specific targets instead of just what they currently do? (That, by the way, is automating the compromise of vulnerable clients in mass scale to power botnets). Any service you open on your device to the internet is inherently risky. Ssh best practices are, and have been since the early days, not to expose it to the internet directly.
You did link a vulnerability! That is true. I didn't claim SSH had a clean track record, I claimed it had a better track record than most other software. That vulnerability is hard to exploit, and generates a lot of noise if you were to try, which nobody has because it's never been found in the wild.
People who sit on 0-days for critical software like SSH don't go out and try to mass-exploit it because it will be found within the day and patched within the week once they start making noise. This is not a quiet exploit. If they're smart, they sell it. If they're ambitious, they build an elaborate multi-chain attack against a specific target. Only 0.14% of devices vulnerable to this exploit are EoL versions of OpenSSH, so once this was patched, it was no longer a useful attack vector.
It would also have been completely negated by fail2ban, which is prominently deployed on internet facing SSH, as it required thousands and thousands of connection attempts to trigger the condition. It could also have been mitigated by not running sshd as root, though I understand that most people don't want to deal with that headache even though it is possible.
There are thousands of independent honeypots that sit quietly and sniff all the mass-attacks and they earn their daily bread by aggregating and reporting this data. If you run a mass exploit, you will be found within the day. Trust me, I burned an IP address by regularly scanning the whole IPv4 space. You are going to end up on blacklists real fuckin' fast and whatever you were doing will be noticed and reported.
If you're going to open something, SSH is a very safe choice. But yes, don't open it if you don't need it. We are discussing how to open a service to the internet safely, though, so we need it.
So? Pubkey login only and fail2ban to take care of resource abuse.
Change the port it runs on to be stupid high and they won't bother.
Yeah hey what's your IP address real quick? No reason
In 3 years I haven't had a single attempted connection that wasn't me. Once you get to the ephemeral ports nobody is scanning that high.
I'm not saying run no security or something. Just nobody wants to scan all 65k ports. They're looking for easy targets.
Shodan has entered the chat.
Why would you need to expose SSH for everyday use? Or does Jellyfin require it to function?
Maybe leave that behind some VPN access.
I agree, but SSH is more secure than Jellyfin. it shouldn't be exposed like that, others in the comments already pointed out why
Cool if I understand only some of things that you have said. So you have a beginner guide I could follow?
Take a look at Nginx Proxy Manager and how to set it up. But you'll need a domain for that. And preferably use a firewall of some sort on your server and only allow said ports.
I’ve look a little on it, didn’t understand most of it. I’m looking for a comprehensive beginner guide before going foward
This isn't a guide, but any reverse proxy allows you to limit open ports on your network (router) by using subdomains (thisPart.website.com) to route connections to an internal port.
So you setup a rev proxy for jellyfin.website.com that points to the port that jf wants to use. So when someone connects to the subdomain, the reverse proxy is hit, and it reads your configuration for that subdomain, and since it's now connected to your internal network (via the proxy) it is routed to the port, and jf "just works".
There's an ssl cert involved but that's the basic understanding. Then you can add Some Other Services at whatever.website.com and rinse and repeat. Now you can host multiple services, without exposing the open ports directly, and it's easy for users as there is nothing "confusing" like port numbers, IP addresses, etc.
So I’m another newbie dummy to reverse proxies. I’ve got my jellyfin accessible at jellyfin.mydomain.com but I can only access it through the web. How do I share with other people who want to use the apps? I can’t get my apps to find my instance.
Also run the reverse proxy on a dedicated box for it in the DMZ
Honestly you can usually just static ip the reverse proxy and open up a 1:1 port mapping directly to that box for 80/443. Generally not relevant to roll a whole DMZ for home use and port mapping will be supported by a higher % of home routing infrastructure than DMZs.
In a perfect world, yes. But not as a beginner, I guess?
It's beginner level, the hard part is the reverse proxy, once you have a grasp on that just having it on a dedicated box in a segmented portion on your firewall designated as the DMZ is easy. Id even go so far as to say its the bare minimum if you're even considering exposing to the internet.
It doesn't even need to be all that powerful since its just relaying packets as a middleman