I have seen this before and have never been able to track down the cause. It seems that the curl version changes or something and it thinks that there are no matching protocols. Hasn't happened to me in a while - knock on wood.
Usually a reboot helps me locally but I recall seeing this in system tests where it was never resolved - afaik. On Fri, Jul 20, 2018 at 9:38 AM, Sandeep Moré <moresand...@gmail.com> wrote: > Perhaps the SSL keys have expired ? I have not seen this one. > You can turn on SSL debugging on Knox and see what details you get, that > should help in debugging. > > Best, > Sandeep > > On Fri, Jul 20, 2018 at 12:44 AM Guang Yang <k...@uber.com> wrote: > >> Hi guys, >> >> Our Knox service was running well for a long time, but suddenly starting >> from this afternoon, we kept seeing this error *curl: (35) Unknown SSL >> protocol error in connection to localhost:19943* when curl Knox. Do you >> guys have any idea what's the possible reason? >> >> >> Thanks, >> >> Guang >> >>
