I was unable to login from my old iMac running Yosemite to my new iMac running Ventura using RSA keys. It turns out that RSA key support was disabled in Ventura. To correct the problem, I added the following two lines to the bottom of BOTH /etc/ssh/ssh_config and /etc/ssh/sshd_config on the Ventura side:
Permission denied: could not bind to address To disable on the fly: # getenforce Enforcing # setenforce 0 # getenforce Permissive # sestatus To survive a reboot: # vi /etc/sysconfig/selinux Change: SELINUX=enforcing to SELINUX=disabled ~or~ SELINUX=permissive