31 votes
Accepted

How do I install GnuTLS for Emacs 25.1 on Windows?

@StuartHickinbottom explained what I was doing wrong: using libgnutls-28.dll when Emacs 25.1 requires the newer and incompatible libgnutls-30.dll. Then it was a matter of finding binaries of libgnutls-...
Omar's user avatar
  • 4,812
8 votes

How can I retrieve an HTTPS URL on Mac OS X without warnings about an untrusted authority?

Add /private/etc/ssl/cert.pem to gnutls-trustfiles: M-x customize-variable Customize variable: gnutls-trustfiles Select the last [INS] Bundle filename: /private/etc/ssl/cert.pem Select [ Apply and ...
Daniel Le's user avatar
  • 181
4 votes
Accepted

TLS connection to Melpa.org hanging on prelude

I got around this by first starting emacs with emacs --insecure and once that worked and downloaded and what it needed, I was able to start emacs --daemon fine.
Galder Zamarreño's user avatar
3 votes

Emacs Contacting host: elpa.gnu.org:80 possibly related to TLS shenanigans

This worked for me. Thank-you. Specifically, I added the line (setq gnutls-algorithm-priority "NORMAL:-VERS-TLS1.3") to my init.el. Actually a better way to set variables is with this ...
Zintis's user avatar
  • 31
2 votes
Accepted

Accessing HTTPS sites with mac emacs 26.3

Your question is similar to the old one accessing MELPA/ELPA sites, also https - so there are two possible solutions to solve that: Upgrade to emacs version 26.3, this is solved there; - but seems to ...
Ian's user avatar
  • 1,463
2 votes

Can't connect to package managers on multiple computers

This problem was solved by forcing emacs to use https instead of http. For some reason, emacs is using http as default instead of https. Steps to solve: (customize-variable RET package-archives) ...
Lee Jordan's user avatar
1 vote

GnuTLS not found in MSYS2 build - fixable?

I had something similar happen when I followed these instructions to install the Git for Windows executables inside my MSYS2 installation. This works by adding the lines [git-for-windows] Server = ...
Rodney Price's user avatar
1 vote
Accepted

Emacs Contacting host: elpa.gnu.org:80 possibly related to TLS shenanigans

I can't mark a comment as an answer, so I will copy the comment of phils to mark it as a solution. "I believe you want https for both gnu and melpa, and furthermore that marmalade may no longer ...
Jermog's user avatar
  • 81
1 vote

Emacs Contacting host: elpa.gnu.org:80 possibly related to TLS shenanigans

I found I also needed the below: gnutls-algorithm-priority "NORMAL:-VERS-TLS1.3" Edit: I have since lost the site that I have found this. When I would try and issue a package-list-packages ...
JonF's user avatar
  • 11
1 vote

Cannot access ELPA from Emacs behind a corporate proxy (Mac)

Emacs package.el supports local package repo. So here is the solution, Create a local repo from your installed packages using https://github.com/redguardtoo/elpa-mirror Add local repo path to ...
chen bin's user avatar
  • 4,867
1 vote
Accepted

Cannot access ELPA from Emacs behind a corporate proxy (Mac)

I was able to work around this issue by using Squid as described here. Note that I still see the elpa.gnu.org/0 nodename nor servname provided, or not known error.
EightyEight's user avatar
1 vote

Failed to update packages getting error "gnutls-error #<process elpa.gnu.org> -50" on Windows 10

I solved this by setting the variable gnutls-algorithm-priority to TLS-1.2. (setq gnutls-algorithm-priority "NORMAL:-VERS-TLS1.2"). It's because on Windows or Windows Subsystem Linux (WSL) the ...
Joseph Tesfaye's user avatar
1 vote

Can't connect to package managers on multiple computers

When in doubt, simplify. Start your Emacs with emacs -Q to disable initialization. Then in the *scratch* buffer, evaluate the following lines by hitting Ctrl+j after each lisp line. Afterwards your *...
nega's user avatar
  • 3,221
1 vote

M-x list-package fails with error "certificate could not be verified"

After much digging, I believe a common cause of this is likely a combination of two things: elpa.gnu.org is misconfigured, sending its own certificate in duplicate before the issuer certificate - ...
Sam Brightman's user avatar
1 vote

gnutls-negotiate: Certificate validation failed for [hostname] verification code 402

I tried gnutls-cli hostname -p 9001 to check if there actually was a problem with the cert (and not just my Emacs 25) and it turns out the certificate was expired. So it seems Emacs 24 didn't care ...
unhammer's user avatar
  • 1,159
1 vote

smtpmail.el: How to tell if gnutls has started

You have hopefully figured this out by now but I think you need (setq smtpmail-stream-type 'starttls). You've specified TLS directly which won't work if the service expects unencrypted connections at ...
Ronald's user avatar
  • 11
1 vote

Emacs mail - The TLS connection was non-properly terminated

Below are my settings for sending mail through GMail: (require 'nnir) (setq gnus-select-method '(nnimap "gmail" (nnimap-address "imap.gmail.com") (nnimap-server-...
wvxvw's user avatar
  • 11.4k
1 vote

TLS connection to Melpa.org hanging on prelude

On Windows 10, I solved the problem by starting Emacs with the admin prompt (seems that admin rights matter). Also, you should check on whether gnutls is properly installed, following the instructions ...
Stochastic Grognard's user avatar

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