this post was submitted on 16 Mar 2024
93 points (97.0% liked)

Selfhosted

40415 readers
359 users here now

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.

Rules:

  1. Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.

  2. No spam posting.

  3. Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it's not obvious why your post topic revolves around selfhosting, please include details to make it clear.

  4. Don't duplicate the full text of your blog or github here. Just post the link for folks to click.

  5. Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).

  6. No trolling.

Resources:

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 2 years ago
MODERATORS
 

What's everyones recommendations for a self-hosted authentication system?

My requirements are basically something lightweight that can handle logins for both regular users and google. I only have 4-5 total users.

So far, I've looked at and tested:

  • Authentik - Seems okay, but also really slow for some reason. I'm also not a fan of the username on one page, password on the next screen flow
  • Keycloak - Looks like it might be lighter in resources these days, but definitely complicated to use
  • LLDAP - I'd be happy to use it for the ldap backend, but it doesn't solve the whole problem
  • Authelia - No web ui, which is fine, but also doesn't support social logins as far as I can tell. I think it would be my choice if it did support oidc
  • Zitadel - Sounds promising, but I spent a couple hours troubleshooting it just to get it working. I might go back to it, but I've had the most trouble with it so far and can't even compare the actual config yet
top 50 comments
sorted by: hot top controversial new old
[–] redcalcium@lemmy.institute 20 points 8 months ago (6 children)

Keycloak seems complicated, but it's actually not that complicated if you use it for simple OIDC provider.

Just create a new realm, then go to client -> create. Enter your client-id, with openid-connect as protocol. Then, set access type to "confidential", set valid redirect uri to "https://" (or even "https://*" if you're lazy and want to use it on multiple apps). Then hit save and go to the credential tab to copy your client secret. Then head to "users" menu to start adding users to your realm.

That's the basic setup which should be good for home use. The good thing about keycloak is, as you grow your homelab, whatever stuff you may need later can be provided by keycloak. Want some users to have access to app A, but not app B? 2 factor auth? Allow users to login with google account? Heck, allow users to login with another sso provider (chaining)? You can do pretty much anything.

load more comments (6 replies)
[–] g5pw@feddit.it 15 points 8 months ago* (last edited 8 months ago) (3 children)

I use kanidm with oauth2-proxy. No issues so far, it was pretty easy to set up.

Note that the connection to kanidm needs to be TLS even if you have a reverse proxy!

EDIT: currently using 80MB RAM for two users and three Service Providers.

[–] sudneo@lemmy.world 2 points 8 months ago

Thanks (grazie?)! I was looking for something similar and kanidm looks great feature wise and simple to deploy!

[–] johntash@eviltoast.org 2 points 8 months ago

Thanks, kanidm looks promising. I'll try it out this weekend

[–] timbuck2themoon@sh.itjust.works 2 points 8 months ago* (last edited 8 months ago) (8 children)

Does this do it all? It seems that it holds all your users like LDAP and can auth that way too. But it can also do simple oidc integrations too? Basically just want to see if it is the all in one. Looks like it does which is why i wonder why you use oauth2-proxy in addition.

I've otherwise been trailing keycloak/authelia as the oidc portion and lldap/freeipa as the ldap Backend that actually holds the users. Would love to simplify if possible.

load more comments (8 replies)
[–] PlexSheep@feddit.de 9 points 8 months ago

I use authentik. The login flow is a little weird I agree, my password manager doesn't like it too. Besides that, from the ones I used it's definitely the most stable and developed (I was using authelia before).

I can't quite figure out how to use it with proxy auth.

[–] Unchanged3656@infosec.pub 8 points 8 months ago (4 children)

Depending on what you are trying to do, Authelia does have OIDC in beta https://www.authelia.com/roadmap/active/openid-connect/

I use Authelia again since in beta it now supports multiple Pass/FIDO keys via the web interface, and it does work reasonably well.

[–] JustEnoughDucks@feddit.nl 3 points 8 months ago

OIDC does indeed work fine too.

I use it on nextcloud and immich and a few others.

You will be much more hard pressed to find apps that support SSO and oidc than oidc that authelia is broken on.

load more comments (3 replies)
[–] Lem453@lemmy.ca 7 points 8 months ago* (last edited 8 months ago) (2 children)

Authentik works very well and has the most flexibility if you have the resources to run it (not an rpi)

You can change the logon flow to make the username and password on the same page

Another user mention issues with password managers auto filling. There is a comparability button as well on the login flow that allows bitwarden and other to auto fill correctly.

Authentik has LDAP built in along with every SSO method that exists. Makes it super nice to integrate into as many services as possible.

I use it with oAuth, LDAP and reverse proxy authentication.

[–] bmcgonag@lemmy.world 1 points 8 months ago
[–] johntash@eviltoast.org 1 points 8 months ago (2 children)

You can change the logon flow to make the username and password on the same page There is a comparability button as well on the login flow that allows bitwarden and other to auto fill correctly.

Thanks for the tips, I found the compatibility button and will try it out. I'm not sure I see how to change the username/password to be on the same page though. Do you have to create a whole new login flow?

[–] node815@lemmy.world 5 points 8 months ago (2 children)

https://www.youtube.com/@cooptonian His Authentik videos are top notch and they (Authentik) have also had him make some for them. One of those videos, I can't recall shows you how to do this, I think it may be the 2FA/MFA one. I use Authentik and can login with fingerprint login without using my UN/PW first. It's pretty slick.

[–] PipedLinkBot@feddit.rocks 2 points 8 months ago

Here is an alternative Piped link(s):

https://www.piped.video/@cooptonian

Piped is a privacy-respecting open-source alternative frontend to YouTube.

I'm open-source; check me out at GitHub.

[–] johntash@eviltoast.org 1 points 8 months ago

Thanks for the recommendation, I'll take a look at some of his videos. I managed to get the un/pw on one page, but haven't done much with webauthn/passwordless stuff yet so that might be useful too.

[–] Lem453@lemmy.ca 2 points 8 months ago* (last edited 8 months ago) (1 children)

I think I saw a tutorial on YouTube for how to do it but this page describes it as well. I edited the default login flow to include the password box

https://docs.goauthentik.io/docs/flow/stages/identification/

[–] johntash@eviltoast.org 2 points 8 months ago

Thanks! I managed to get user/pass on the same page and it works great with the compatibility mode

[–] exu@feditown.com 7 points 8 months ago

I'm pretty happy with Authentik. Bitwarden at least has no issues with auto-filling the username and password fields when I want to log in.

It is also a very complete solution offering basically any current authentication protocol and integration with other providers.

[–] Dehydrated@lemmy.world 5 points 8 months ago (1 children)

I've been using Authelia for almost 2 years and I really like it. Never had any issues.

[–] toff@feddit.de 2 points 8 months ago

The latest update to authelia 4.38 was a little bit cumbersome, because you hat to manually adjust the configuration. But all in all I like authelia, too.

[–] callmemagnus@lemmy.world 4 points 8 months ago (1 children)

Why not keep everything in your LAN and setup a wire guard bastion ?

[–] johntash@eviltoast.org 3 points 8 months ago

That's essentially what I am doing. Everything is on the LAN by default. I have two instances of Traefik. One that runs only on internal VPN ips, and another on remote servers using public ips. So I can choose which services are accessible over lan/vpn or public (routed through a vpn to lan).

That doesn't solve the authentication problem if I want to expose something to the internet though, or even sso inside the lan.

[–] krash@lemmy.ml 4 points 8 months ago* (last edited 8 months ago) (5 children)

Sorry for the off topic question, but what are the gains / constraints of using an identity / authentication service? Sure, you only are going to need to remember one password/identity. But each webapp must have support for the said protocol, and so does their clients, no? It does seem like a lot of work (and risk exposure) for little gain.

Please enlighten me if I'm missing something.

[–] chiisana@lemmy.chiisana.net 3 points 8 months ago

Most of the apps I use support external authentication using popular standards (OAuth for most part). This means the clients will also support the said standards out of the box. Having a standardized authentication flow makes logging in much easier as well.

I also don’t want to deal with passwords… because I don’t trust myself to handle passwords. So before settling down on Authentik, I used FusionAuth to do OIDC via Google. Then I discovered I could do WebAuthn / Passkey with Authentik, so the portal really only ever need to know my public key, and approves access based on private keys, which are gated by my devices’ biometric features. This is way more secure than other solutions and I don’t even need to remember a password.

The one edge case I’ve encountered is a couple of apps recently transitioning to mandating authentication, but doesn’t have OIDC integration of their own. Fortunately, there’s a hidden config flag in XML that I can use to tell them that I have externally managed authentication, and I gate access to them via a middleware in my reverse proxy. As for client, my client of choice allows me to add custom HTTP headers, so I have a special “API key” kind of header that my reverse proxy looks at, which allow me to bypass authentication, so everything works nicely together.

In my mind, using the vanilla out of the box authentication feels less secure than me gating things via OIDC or middleware. This is because everyone knows they could Google for “Powered by WordPress” or similar phrase to target specific apps with known authentication exploit. However, by switching it up and using a different mechanism, the common exploit vectors might not be as effective against my deployment.

[–] johntash@eviltoast.org 3 points 8 months ago

As long as it's a web app, it's usually fine and can provide an extra layer of security. The app does need to have some support for sso if you want it to be seamless though, without logging in twice.

Most of my services are internal only, but sometimes I want to give access to someone on the internet without also giving them VPN access. If the app doesn't support any kind of login, having an Auth proxy in front of it really helps for that use case.

Remembering lots of passwords isn't a big deal if you have a password manager, but not having to log in to each app separately is nice. It's also nice to be able to put Auth in front of things that don't support it natively.

[–] atzanteol@sh.itjust.works 2 points 8 months ago

Making it easier for users to remember passwords leads to them using better passwords and practicing better password hygiene generally.

You can also change your password across multiple systems easily if your password is compromised.

[–] redcalcium@lemmy.institute 2 points 8 months ago* (last edited 8 months ago)

Mostly for convenience and standardizing your security procedure. Most apps popular for self hosting now supports OIDC, so it's no brainer to setup. On the other hand, most apps don't support 2fa, or support it in a weird way (e.g. no recovery code). By using an identity service, you can be sure all your apps follow the same login standard you setup.

For those apps that don't support OIDC, you can simply slap oauth2proxy in front of it and it's done.

load more comments (1 replies)
[–] thefactremains@lemmy.world 4 points 8 months ago (2 children)
[–] TCB13@lemmy.world 3 points 8 months ago (1 children)

I was going to suggest Nginx with phpAuthRequest but your solution seems more inline with what the OP is asking for.

load more comments (1 replies)
[–] johntash@eviltoast.org 2 points 8 months ago

Thanks, I'll take a look! It might be helpful even if I use a different idp

[–] poVoq@slrpnk.net 3 points 8 months ago (1 children)

I have been looking into this: https://gitlab.com/yaal/canaille to extend my LLDAP, but it can also work without an LDAP backend if you only need OIDC.

load more comments (1 replies)
[–] Netrunner@programming.dev 3 points 8 months ago (1 children)

Authelia does support oidc and its amazing.

[–] faercol@lemmy.blahaj.zone 2 points 8 months ago

Authelia is a oidc provider, but does not support oidc as a provider, only local file and ldap. So it really depends on your use case

[–] notfromhere@lemmy.ml 3 points 8 months ago (1 children)
  • Authentik is pretty resource intensive. Needs something like 3 servers/instances. A database, a server and a worker. Uses something like 800+ MB ram just for this service. Since I run my services on raspberry Pi 3s, I ended up moving away from this
  • Keycloak works great but is a bit difficult to set up and doesn’t support all the authentication protocols that Authentik does
[–] johntash@eviltoast.org 2 points 8 months ago (1 children)

Did you move to Keycloak, or something else?

[–] notfromhere@lemmy.ml 5 points 8 months ago

Honestly I just moved back to local accounts. I’m interested in the other comments on this post for a good solution to move to.

[–] lckdscl@whiskers.bim.boats 3 points 8 months ago

I've been using Authelia with several OIDC integrations for a while now. Works great. They've released a huge update like a day ago too. Out of the ones you listed, it's very lightweight too. The docs are a bit all over the place but it is quite comprehensive.

I did look at Zitadel and tried setting it up myself but I just couldn't get it to work. The docs are a bit vague.

[–] Decronym@lemmy.decronym.xyz 2 points 8 months ago* (last edited 2 months ago)

Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread:

Fewer Letters More Letters
HTTP Hypertext Transfer Protocol, the Web
SSL Secure Sockets Layer, for transparent encryption
SSO Single Sign-On
TLS Transport Layer Security, supersedes SSL
VPN Virtual Private Network
k8s Kubernetes container management package
nginx Popular HTTP server

6 acronyms in this thread; the most compressed thread commented on today has 18 acronyms.

[Thread #606 for this sub, first seen 16th Mar 2024, 12:15] [FAQ] [Full list] [Contact] [Source code]

[–] wuphysics87@lemmy.ml 2 points 8 months ago (2 children)
load more comments (2 replies)
[–] chiisana@lemmy.chiisana.net 2 points 8 months ago (4 children)

OIDC was a huge thing for me, I used FusionAuth for a bit and it worked great. Then I learned I could deploy my own WebAuthn / passkey password-less authentication, moved over to Authentik, and never looked back.

load more comments (4 replies)
[–] synae@lemmy.sdf.org 1 points 8 months ago

I use oauth2proxy+nginx ingress gateway where needed (apps that don't support OIDC themselves), with dex their OIDC provider, and github is dex's upstream IDP+OIDC.

[–] Moonrise2473@feddit.it 1 points 8 months ago (1 children)

unpopular closed source option: cloudflare access after a cloudflare tunnel

[–] johntash@eviltoast.org 2 points 8 months ago

cloudflare access + cloudflare tunnels is a cool solution, and was easy to set up in the past, but I'd rather stick to something completely self-hosted. I'd probably use it for something completely public, but not things that route into my homelab.

load more comments
view more: next ›