Excessive delay at ssh connection to remote host

[Damien Miller]

On Mon, 5 Oct 2026, Lars Noodén via openssh-unix-dev wrote:

> On 10/4/26 22:59, James Moe via openssh-unix-dev wrote:
> > On 2026-10-03 21:21, Lars Noodén via openssh-unix-dev wrote:
> > 
> >> Leave off the -E or -e options then and the logging will go to the usual
> >> place(s).  However, that will pollute your main log with a lot of noise.
> >>    Thus the recommendation to log the separate instance of sshd
> >> separately using -E.
> >>
> >> /usr/sbin/sshd -p 2222 -E /tmp/sshd.log -d -d -d
> >   I have already provided a log file using the above (only with -d -d). The
> issue
> > for me was that there are no timestamps in the log and I could not parse
> where
> > the delay(s) occurred
> 
> For 1-second granularity:
> 
> /usr/sbin/sshd -p 2222 -e -d -d -d 2>&1 | ts | tee /tmp/sshd.log

fwiw ts is in often in a "moreutils" package if not installed by default.

ts -i "%.S"

will prepend timestamps that show microseconds since the previous timestamp