On 2026-01-20, Washington Odhiambo <[email protected]> wrote: >> On Tue, Jan 20, 2026 at 05:41:13PM +0300, Washington Odhiambo wrote: >> > Putty/Bitvise SSH clients work with all VMs, and all hosts that I manag= > e, >> > but NOT OpenBSD.
very strange. btw putty 0.83 can connect ok to 7.8 and -current here. >> > Any ideas? >> >> Run sshd on the OpenBSD machine in the foreground from the console to see >> comprehensive debugging info: >> >> # /etc/rc.d/sshd stop >> # /usr/sbin/sshd -ddd >> >> This will generate a lot of output, but will allow you to see how the ssh >> session is being negotiated, (and hopefully identify where it fails). >> > > Here is the debug info: https://paste.ubuntu.com/p/CXP2qNWWTX/ this isn't IRC, you can just include that directly in the email. it's easier for other people reading, and won't expire in case somebody later looks at this in the list archives. So putty drops the connection before auth'ing: debug1: SSH2_MSG_NEWKEYS sent [preauth] debug1: Sending SSH2_MSG_EXT_INFO [preauth] debug3: send packet: type 7 [preauth] debug1: expecting SSH2_MSG_NEWKEYS [preauth] Connection closed by 192.168.69.109 port 5821 [preauth] debug1: monitor_read_log: child log fd closed I think you need to look at logging on the putty side to see what it's doing. Go to session logging, set it to 'SSH packets', try to connect, then take a look in putty.log (or whatever other filename you used). -- Please keep replies on the mailing list.
