https://bugzilla.mindrot.org/show_bug.cgi?id=3747
Darren Tucker <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |[email protected] --- Comment #3 from Darren Tucker <[email protected]> --- Firstly, since this is a vendor modified binary, ultimately they are the ones that will need to help you, unless you or they can reproduce the problem with an unmodified OpenSSH as available on openssh.com. That said, looking through the debug log, the first time sink is: Oct 15 12:34:37 ip-10-248-139-188 sshd[501923]: debug1: fd 5 clearing O_NONBLOCK Oct 15 12:34:43 ip-10-248-139-188 sshd[501923]: debug1: /home/craeme02/.ssh/authorized_keys:1: matching key found: RSA SHA256:EsGSIDs3cY1EdOy67jomy4+XxJYj+tqIT3TUo5wsHgo 6 seconds to read a file in the user's home directory. Are these automounted or something? Oct 15 12:34:46 ip-10-248-139-188 sshd[501923]: debug1: fd 5 clearing O_NONBLOCK Oct 15 12:34:52 ip-10-248-139-188 sshd[501923]: debug1: /home/craeme02/.ssh/authorized_keys:1: matching key found: RSA SHA256:EsGSIDs3cY1EdOy67jomy4+XxJYj+tqIT3TUo5wsHgo Another 6 seconds to read a file. (In reply to Craig Emery from comment #1) > It's lines like this that stand out for me: > > Oct 15 12:34:43 ip-10-248-139-188 sshd[501923]: debug3: > ensure_minimum_time_since: elapsed 5689.207ms, delaying 3656.119ms > (requested 9.126ms) [preauth] > > Why would there be a 3656ms delay during a connection that has no > failures. No back off etc. Once an authentication has taken some amount of time, sshd will try to keep the amount of time consistent for other auth attempts to prevent leaking information about user or authentication state via timing attacks. If some operations are slow that carries over to other ones. If you can fix whatever is causing the slowdowns those will reduce to match. -- You are receiving this mail because: You are watching the assignee of the bug. You are watching someone on the CC list of the bug. _______________________________________________ openssh-bugs mailing list [email protected] https://lists.mindrot.org/mailman/listinfo/openssh-bugs
