On Monday, 29 March 2021 9:34:13 AM AEDT Wietse Venema wrote: ... > Third, look with mtr at the latency pattern. If part of your traffic > goes over a satellite, of if it is tunneled to some far-away country, > then you will see a big jump. Unfortunately, mtr does not support > tcp so you can't do 'mtr for port 25'. mtr supports tcp syn based probes these days.
mtr --tcp -P 25 destination_host should do the trick > > That's just a few off the top of my head. > > Wietse
