Hi, On Wed, Mar 17, 2021 at 06:51:45PM +0000, Peter Suetterlin wrote:
Hi,
I just upgraded my TW notebook to 20210316. Now I cannot log in to my (university) mail server via mutt anymore. I only get
gnutls_handshake: The Diffie-Hellman prime sent by the server is not acceptable (not long enough).
Looks some default settings have changed? But which - and how do I override it?
Thanks for any hints!
Cause is likely that we introduced crypto-policies , so far for gnutls and openssl, more to follow. The new default crypto policies has higher requirements than the gnutls standard before. in this case try: update-crypto-policies --set LEGACY and see if it helps. Perhaps also tell your university to upgrade the DH parameters on their mailserver. Ciao, Marcus