On CF Tunnels, getting "invalid" certificates on some machines
reddit / selfhosted

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omeromano · 2023-12-10 11:34

I am dumb, and for the services I have that I expose to the internet,
I cannot make nginx proxy manager work. I was happy to get to use
Cloudflare tunnels, because I can use subdomains, get https, and
easily. Sure I still get the "insecure" warning when I access the
services internally.

It was working fine until a few weeks ago when I wasn't able to access
one of my services -- file browser -- via files.mydomain.com, while
using a machine from this institution. I used to be able to do it from
there. I tried my nextcloud instance next and a similar message (can't
remember the exact error) appeared in browser. It happened again using
another computer from another institution.

When I use my devices, there's no error. I am just wondering why this
is happening in those networks and in those machines, and also how I
can remedy it.

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thekrautboy · 2023-12-10 14:30

/r/Cloudflare exists

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boli99 · 2023-12-10 17:36

>can't remember the exact error

well you *need* to remember the *exact* error.

most likely the error tells you exactly whats wrong, and whats
necessary to fix.

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omeromano · 2023-12-10 21:03

I hear you. I'll do that when I encounter it again on those machines.
I cannot reproduce it on mine.