Apache fails to start on a Plesk server with the following error message in
AH02311: Fatal error initialising mod_ssl, exiting. See /var/www/vhosts/system
/example.com/logs/error_log for more information
/var/www/vhosts/system/example.com/logs/error_logappears the following error message:
AH01898: Unable to configure permitted SSL ciphers
SSL Library Error: error:1410D0B9:SSL routines:SSL_CTX_set_cipher_list:no cipher match
#PPPM-12964 "Apache now runs if it is configured with TLS 1.3 ciphers only."
- Plesk Obsidian 08 June 2021 (Linux)
If update is not possible for some reason you may try the following
Go to to Tools & Settings > TLS versions and ciphers management.
Note: If the option TLS versions and ciphers management is missing in Tools & Settings, install the SSL! It extension.
Under the TLS versions and ciphers by Mozilla section, click [change] (or Enable).
Select the Intermediate (recommended) cipher suite and click Change and Sync.