sshdconfig.txt actually does NOT contain a line with Port 22 (it is commented out)
the beginning of the file is:
Include /etc/ssh/sshd_config.d/*.conf
#Port 22 #AddressFamily any #ListenAddress 0.0.0.0 #ListenAddress :: ListenAddress [fd12:2017:8387:80:3897:7aff:fe15:4de6]:22 ListenAddress [::]:15902 ListenAddress 0.0.0.0:15902
sshdconfig.txt actually does NOT contain a line with Port 22 (it is commented out)
the beginning of the file is:
Include /etc/ssh/ sshd_config. d/*.conf
#Port 22 8387:80: 3897:7aff: fe15:4de6] :22
#AddressFamily any
#ListenAddress 0.0.0.0
#ListenAddress ::
ListenAddress [fd12:2017:
ListenAddress [::]:15902
ListenAddress 0.0.0.0:15902