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Old 10-10-2019, 06:53 AM   #1
SteveJJ
LQ Newbie
 
Registered: Oct 2019
Posts: 2

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How to diagnose SSL error


I have started getting these errors:

Code:
This site canít provide a secure connection
github.com sent an invalid response.
ERR_SSL_PROTOCOL_ERROR
I get the same error from multiple web sites and on multiple browsers. I am using Fedora 30 and have tried common fixes like:
  • updated all packages
  • set the date and time correctly
  • cleared the cache

I also get errors trying to clone from github:
Code:
> git clone https://github.com/vim/vim.git
Cloning into 'vim'...
fatal: unable to access 'https://github.com/vim/vim.git/': error:140943E8:SSL routines:ssl3_read_bytes:reason(1000)
I assume these are related problems but I have no experience with SSL/TLS or security certificates.

Can someone tell me how to diagnose this problem.?
 
Old 10-10-2019, 07:13 AM   #2
greencedar
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Registered: Sep 2018
Location: Missouri
Distribution: Ubuntu 18.04 Bionic Beaver & Linux Mint 19.1 Tessa
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This article on SSl's by NixCraft may help you. If so, let us know, if not, let us know.

https://www.cyberciti.biz/faq/test-s...l-certificate/
 
Old 10-13-2019, 06:03 AM   #3
SteveJJ
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Registered: Oct 2019
Posts: 2

Original Poster
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What certificate should I use

Step 1 (getting the certificate) in the tutorial suggested by greencedar:
Quote:
Originally Posted by greencedar View Post
This article on SSl's by NixCraft may help you. If so, let us know, if not, let us know.

https://www.cyberciti.biz/faq/test-s...l-certificate/
fails:
Code:
> openssl s_client -showcerts -connect mail.nixcraft.net:443
139760777291584:error:2008F002:BIO routines:BIO_lookup_ex:system lib:crypto/bio/b_addr.c:724:Name or service not known
connect:errno=22
Is there another certificate that I can try?

I also tried to reset the certificates using this guide, but it didn't fix the problem
 
Old 10-14-2019, 08:51 AM   #4
greencedar
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Registered: Sep 2018
Location: Missouri
Distribution: Ubuntu 18.04 Bionic Beaver & Linux Mint 19.1 Tessa
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As your problem is with several sites you may want to check to see if that the problem lies with your router connection and/or settings.

Here is a Ubuntu discussion on checking if it is a router problem.

https://askubuntu.com/questions/1897...in-https-sites

Also, are you using Google Chrome?
 
  


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