Is sshd limiting the rate of successful connections?

[Lowell Gilbert]

Alex Kapranoff <kappa at rambler-co.ru> writes:

> It seems that a recent 5-STABLE limits the rate of successful incoming
> logins. Is it true? We failed to find the relevant code neither in
> openssh nor in openpam. The symptoms are that after a big number of
> quick successful logins sshd starts to delay or block login attempts
> for as long as 10 seconds. Does someone know anyhting about such
> behaviour or is this some obscure configuration problem (read: pilot
> error)?

You might be hitting the "MaxStartups" limit, but that only applies to
connections that haven't yet authenticated.