Solved! The problem was that sshd in Gitlab docker instance uses /assets/sshd_config instead of /etc/ssh/sshd_config

sshd_ Config Configuration not effective

yuepingt1987 October 26, 2023, 6:31am 9

I don’t know if there is any other way to do it if you don’t modify the port

Topic		Replies	Views
Can't get SSH to work on my gitlab instance running in a docker container Self-managed	6	1083	March 8, 2025
Cannot connect to Gitlab docker with SSH using old client (that supports only ssh-rsa and ssh-dss) Community docker	1	1315	July 27, 2023
Git clone over ssh How to Use GitLab	10	56063	March 25, 2023
SSH Key issues Self-managed ldap , docker , ssh	2	1719	February 14, 2023
Can not connect to gitlab using ssh key General	3	132	May 13, 2025