The problem is solved. Our DHCP server was sending me a bad WINS server ip. After fixing the issue I had to reboot the PC (just refreshing the ip and restarting cygsshd was not enough).
On 22.01.2021 22:07, basini...@gmail.com wrote: > Hi. The problem first appeared ten days ago. It now takes minutes to login as > a domain user. Tcpview shows that sshd.exe is trying to connect an > inaccessible server on the port 389 (ldap). If I close the socket using > Tcpview, successful login happens sooner. Both password and public key logins > are affected, but with a public key sshd.exe tries to connect that server > multiple times. Also, if I don't close the sockets repeatedly, ssh > disconnects from the SSH server after 2 minutes of silence before the "last > login" line appears: > > $ time ssh -vvv localhost > ... > debug1: Offering public key: > debug3: send packet: type 50 > debug2: we sent a publickey packet, wait for reply > > > debug3: receive packet: type 60 > debug1: Server accepts key: > debug3: sign_and_send_pubkey: RSA > debug3: sign_and_send_pubkey: signing using rsa-sha2-512 > debug3: send packet: type 50 > > > Connection closed by ::1 port 22 > > real 2m0.292s > user 0m0.045s > sys 0m0.122s > > > > Besedes, sshd.exe has a live connection on port 389 to another server all the > time. > > > I can't see anything interesting in sshd log. At least the ldap ip address > does not appear in the log. > > ... > <TimeCreated SystemTime="2021-01-22T18:52:09.7210295Z" /> > <Data>sshd: PID 1786: debug1: temporarily_use_uid: 1087042/1049089 > (e=18/18)</Data> > > <TimeCreated SystemTime="2021-01-22T18:52:51.9304939Z" /> > <Data>sshd: PID 1786: debug1: trying public key file > /home/basin/.ssh/authorized_keys</Data> > ... > > <TimeCreated SystemTime="2021-01-22T18:53:21.6284471Z" /> > <Data>sshd: PID 1786: debug1: temporarily_use_uid: 1087042/1049089 > (e=18/18)</Data> > ... > > > <TimeCreated SystemTime="2021-01-22T18:54:03.7296838Z" /> > <Data>sshd: PID 1786: debug1: trying public key file > /home/basin/.ssh/authorized_keys</Data> > ... > > > <TimeCreated SystemTime="2021-01-22T18:54:03.7296838Z" /> > <Data>sshd: PID 1786: debug1: monitor_child_preauth: basin has been > authenticated by privileged process</Data> > ... > > > <TimeCreated SystemTime="2021-01-22T18:54:09.6686942Z" /> > <Data>sshd: PID 1652: debug1: main_sigchld_handler: Child exited</Data> > > BTW, is it possible to make sshd write to a log file instead of Windows Event > Log? > > -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
