Why does my ssl certificate not work on port 4443? - ssl

I'm setting up an openvidu demo on a server with Ubuntu as shown in this tutorial:
https://openvidu.io/docs/deployment/deploying-ubuntu/
But I'm having problems when making a video call because it marks me an error with my certificate on port 4443
Error image
I checked my certificate and it seems that everything is fine but I do not understand what is happening.
Certificate image
I am new working with servers and I am not sure what is happening. Do I have to do some other configuration to recognize port 4443?
Does anyone know what I can do to solve this error?

Related

Lestencrypt: Invalid certificate chain because of port

I have app (backend part) running e.g. on: https://bla.com:8443. I created a certificate for it via letsencrypt for domain bla.com.
When I tried to receive payments (webhook) from www.stripe.com I end up with TLS error. After some investigation I figure out that problem is with invalid certificate chain for https://bla.com:8443 and if I would run it on https://bla.com:443 everything would be ok.
I can't change it to port 443 because on https://bla.com:443 is running frontend part of the app.
I thought about 2 solutions, but my technical knowledge is quite limited so I am not sure if its possible:
create certificate for domain + port
run frontend & backend part on same port: https://bla.com:443 and configure apache2 to forward all /backend-api/* to https://bla.com:8443/backend-api/*
My question is, is any of the proposals possible and more importantly is there any better solution which I am missing?
Thanks for any suggestions!
A certificate is not bound to a port. It is perfectly fine to use the same certificate on port 443 and 8443. But the servers on port 443 and 8443 have a different configuration. If it works on 443 but not on 8443 this is likely due to some error in the configuration on port 8443. The fix is thus to have the correct configuration and not to work around with a different certificate or somehow to reverse proxy it from port 443.
Unfortunately details on how to exactly fix it cannot be given since the current configuration is not known.
Configuring the program to use fullchain.pem instead of cert.pem fixed it for me.

Firefox can find certificate, but curl cannot (while tunneling https through ssh)

Background:
I have a running app at ports 8080 in the remote server and a https ingress proxy at 443 on the same server, which redirects everything to 8080 app after handling the SSL.
What I want to do:
I want to communicate with the app through SSL remotely, while not having access directly to this domain (it is on a local network, I can access the server remotely via a different domain).
What I did:
I tunneled 443 port from my remote server ssh -L 3001:0.0.0.0:443 user#example.com. I then added 127.0.0.1 example.com to my /etc/hosts to make sure that the domain on my system is resolved properly.
Now, what I can do is enter https://example.com:3001/some/thing/ in firefox and it gets me a proper response from the server, while everything is ran through ssl without any problems. I also am able to use curl without checking the certificate: curl --insecure https://example.com:3001/some/thing works fine.
At the same time secure curl call fails: curl https://example.com:3001/some/thing with the error:
curl: (60) SSL certificate problem: unable to get local issuer certificate
More details here: https://curl.haxx.se/docs/sslcerts.html
Just to make sure both are using the same certificates, I actually used this tool: https://curl.haxx.se/docs/mk-ca-bundle.html to create a ca-bundle.crt from the most recent firefox certificates and passed it to curl with --cacert ca-bundle.crt. No luck - the same error. (I also tried following other curl tutorial on getting the local installation of firefox's certs, also no luck).
Question
What is going on? Why is curl's output different from firefox's even if I seem to use the same certificates? How can I debug this?
Side note
The real reason I am concerned about it is that with a normal (local) access to the server, I observed the same behaviour: I could connect to the server through chrome on https, but my react native app could not. I suspect the app to use libcurl under the hood or something similar and I believe debugging this problem could help me understand what's the problem with the app.

Not able to reach managed server over ssl (https)

I am able to reach my weblogic console over https connection but when I try to launch developer console that is setup as a managed server in the weblogic domain, it fails. However, I can reach the dev console over http port without any issues.
I checked the validity of certs installed my keystore and configured to enable ssl port in managed servers. I am not sure what I am missing here. Please advice if I am missing any additional checks/setups.
For eg,
http://<XXX.cname.com>:9005/console - works on http
https://<XXX.cname.com>:9009/edq - does not work on https
I verified from console that ports are right and ssl ports are enabled.

Cloudflare - 525 SSL handshake failed

I switched with my Domain to Cloudflare and now I'm trying to use CloudFlare's SSL Feature.
I already own a SSL cert from StartSSL so I would be possible to set the settings to 'Full (Strict)' but I don't want to so I turned it to 'Full'.
Now I'm getting 525 Errors, after a 'Retry for a live Version' everything is okay.
But I'm getting this Error everytime.
Has anyone an idea ?
Thank you
Picture of my Error
Change Cloudflare SSL/TLS encryption mode in to Flexible. it worked for me.
A 525 error indicates that CloudFlare was unable to contact your origin server and create a SSL connection with it.
This can be due to:
Your servers not having matching or compatible SSL Ciphers
Your website may not have a certificate installed properly
Your website may not have a dedicated IP OR is not configured to use SNI
Attempt to contact your hosting provider for assistance to ensure that your SSL certificate is setup correctly. If you are using a control panel, a quick google search can help you find a install guide for that said control panel.
Visit SSL/TLS tab in Cloudflare. Then:
Switch Your SSL/TLS encryption mode to Flexible.
Make sure to switch On "Always Use HTTPS" under "Edge Certificate" tab.
This will transfer all your request from Http to Https automatically. And if you'll implement custom SSL certificate on your hosting server then this 525 error will automatically disappear without changing anything on Cloudflare.
Got the same problem a few days ago.
Our DevOps contacted support and found out that Cloudflare changed certificate type or smth in that way. Asked to return everything back.
That helped.
I went through the same problem today and found that (at least in my case) it was the lack of TLS v1.3
I had just made a server using nginx + php-fpm and a self signed ssl to use below CloudFlare proxy.
When I switched from the production server to this new one, it gave error 525.
I gave the command: curl -I https://your_server_public_ip/ and it returned the error:
error: 1408F10B: SSL routines: ssl3_get_record: wrong version number
This error is described in the CloudFlare community at:
https://community.cloudflare.com/t/community-tip-fixing-error-525-ssl-handshake-failed/44256
There they advise turning off TLS v1.3 on the CloudFlare panel, but I decided to try installing it.
Using nginx is so easy that I don’t know why to have it shut down.
Only add TLSv1.3 like this-> ssl_protocols TLSv1.2 TLSv1.3; in your nginx/snippets/ssl-params.conf file (default Ubuntu 20 and 18) that will work and you still use the latest and most secure protocols.

SSL on all the ports

In my Apache, I have 1 ssl cert verified, I want to use it on all the ports.
For example if one user connects to https://subdomain.domain.com
It works flawlessly but when they try to connect to https://subdomain.domain.com:51104 then it gives red mark.
is there any code or way that i can apply so that anyone connect to server with any port,
the cert will work properly?
Can you tell us what the red mark means? SSL can be ran on any port as long as its bidirectional so the error you get is going to be important to answering this question. A wildcard cert would allow you to ise a subdomain so the port shouldnt be an issue in any way. Post the errror by clicking the red x and checking the webserver logs for a more exacr answer.