Does #FreeBSD have some kind of sshd connection throttling mechanism that is outside the PerSourcePenalties config? (I set mine to 'no')
Use blacklist is set to no.
pf is not running either.
Getting really strange intermittent timeouts where I just can't log in yet I can get to the banner with telnet on port 22.
Some PAM thing with FreeBSD perhaps?
Running tcpdump, the FreeBSD machine is constantly sending its own list of KexAlgorithms until the connection times out.
FreeBSD is based sshd: 9.9p2
Connecting client is Linux openssh 10.0p2
This entry was edited (1 month ago)
feld
in reply to Tom • • •edit sshd_config, set UseDNS no
it's timing out on DNS lookups of your client I bet