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ssh on cygwin (win10): read_passphrase: can't open /dev/tty:


Inetd / xinetd isn't working under cygwin, why?ssh uses wrong home directory in CygwinCan't remove tunnel created by CygwinLoggin in ssh server: Permission denied, please try againCan't ssh as tty-less userssh-add under cygwinNeed help in configuring ssh in cygwinNon-interactive SSH connection fails - error: can't open /dev/tty: No such device or address; Host key verification failedManaging multiple servers behind a firewall with SSH reverse tunnelAWS :: Ubuntu instance consistently denying my private keys






.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty height:90px;width:728px;box-sizing:border-box;








7















Executing ssh on cygwin under windows 10 recently started failing, after many years of stable logins. The relevant output from ssh under a mintty from Xwindows:



% ssh -tt -vvv <user@host>
debug3: Failed to open file:C:\ProgramData\ssh/ssh_known_hosts error:2
debug3: Failed to open file:C:\ProgramData\ssh/ssh_known_hosts2 error:2
debug3: failed to open file:/dev/tty error:3
debug1: read_passphrase: can't open /dev/tty: No such file or directory
debug3: spawning /usr/X11R6/bin/ssh-askpass
CreateProcessW failed error:2
ssh_askpass: posix_spawn: No such file or directory
Host key verification failed.


The special file /dev/tty is there:



% ls -la /dev/tty
crw-rw-rw- 1 jpmattia None 5, 0 May 22 15:04 /dev/tty


I updated Cygwin to make sure all the binaries were the latest. Also windows updated itself earlier this week.



I'm a little baffled as to what might be going on. Clues gratefully accepted.










share|improve this question






























    7















    Executing ssh on cygwin under windows 10 recently started failing, after many years of stable logins. The relevant output from ssh under a mintty from Xwindows:



    % ssh -tt -vvv <user@host>
    debug3: Failed to open file:C:\ProgramData\ssh/ssh_known_hosts error:2
    debug3: Failed to open file:C:\ProgramData\ssh/ssh_known_hosts2 error:2
    debug3: failed to open file:/dev/tty error:3
    debug1: read_passphrase: can't open /dev/tty: No such file or directory
    debug3: spawning /usr/X11R6/bin/ssh-askpass
    CreateProcessW failed error:2
    ssh_askpass: posix_spawn: No such file or directory
    Host key verification failed.


    The special file /dev/tty is there:



    % ls -la /dev/tty
    crw-rw-rw- 1 jpmattia None 5, 0 May 22 15:04 /dev/tty


    I updated Cygwin to make sure all the binaries were the latest. Also windows updated itself earlier this week.



    I'm a little baffled as to what might be going on. Clues gratefully accepted.










    share|improve this question


























      7












      7








      7


      3






      Executing ssh on cygwin under windows 10 recently started failing, after many years of stable logins. The relevant output from ssh under a mintty from Xwindows:



      % ssh -tt -vvv <user@host>
      debug3: Failed to open file:C:\ProgramData\ssh/ssh_known_hosts error:2
      debug3: Failed to open file:C:\ProgramData\ssh/ssh_known_hosts2 error:2
      debug3: failed to open file:/dev/tty error:3
      debug1: read_passphrase: can't open /dev/tty: No such file or directory
      debug3: spawning /usr/X11R6/bin/ssh-askpass
      CreateProcessW failed error:2
      ssh_askpass: posix_spawn: No such file or directory
      Host key verification failed.


      The special file /dev/tty is there:



      % ls -la /dev/tty
      crw-rw-rw- 1 jpmattia None 5, 0 May 22 15:04 /dev/tty


      I updated Cygwin to make sure all the binaries were the latest. Also windows updated itself earlier this week.



      I'm a little baffled as to what might be going on. Clues gratefully accepted.










      share|improve this question
















      Executing ssh on cygwin under windows 10 recently started failing, after many years of stable logins. The relevant output from ssh under a mintty from Xwindows:



      % ssh -tt -vvv <user@host>
      debug3: Failed to open file:C:\ProgramData\ssh/ssh_known_hosts error:2
      debug3: Failed to open file:C:\ProgramData\ssh/ssh_known_hosts2 error:2
      debug3: failed to open file:/dev/tty error:3
      debug1: read_passphrase: can't open /dev/tty: No such file or directory
      debug3: spawning /usr/X11R6/bin/ssh-askpass
      CreateProcessW failed error:2
      ssh_askpass: posix_spawn: No such file or directory
      Host key verification failed.


      The special file /dev/tty is there:



      % ls -la /dev/tty
      crw-rw-rw- 1 jpmattia None 5, 0 May 22 15:04 /dev/tty


      I updated Cygwin to make sure all the binaries were the latest. Also windows updated itself earlier this week.



      I'm a little baffled as to what might be going on. Clues gratefully accepted.







      ssh cygwin






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited May 22 '18 at 19:47







      JP Mattia

















      asked May 22 '18 at 19:05









      JP MattiaJP Mattia

      11619




      11619




















          2 Answers
          2






          active

          oldest

          votes


















          8














          Documenting my solution in case anyone else has the problem: It appears that a Windows version of OpenSSH was introduced in the 2018 spring update, and it is being called instead of Cygwin's ssh. (See e.g. https://www.zdnet.com/article/openssh-arrives-in-windows-10-spring-update/)



          % which ssh
          /cygdrive/c/WINDOWS/System32/OpenSSH/ssh


          The reason for the sudden problem with ssh is that the cygwin PATH has /cygdrive/c/WINDOWS/System32 ahead of /usr/bin/. Or at least, mine did.



          So the issue is solved by calling /usr/bin/ssh explicitly. (Reordering the PATH is also a possible solution, but not for my environment.)






          share|improve this answer




















          • 1





            /usr/bin does not include ssh on my fresh installation of Cygwin :(

            – Christoph Geschwind
            Jul 8 '18 at 16:13











          • Good point: My cygwin ssh probably came in with the openssl package from the Cygwin installer.

            – JP Mattia
            Jul 9 '18 at 18:37






          • 1





            Cygwin has an openssh package that must be installed to get the ssh client and ssh client tools.

            – Jason Slobotski
            Aug 4 '18 at 2:20







          • 1





            As other comments have hinted at, you must also install openssh, as it is not installed by default.

            – timelmer
            Dec 5 '18 at 4:27











          • if you install openssh (by re-running cygwin installer and selecting the openssh package), "which ssh" command should switch to show "usr/bin/ssh" instead of "cygdrive/c/WINDOWS/..." (without any additional manual path reordering)

            – VeraKozya
            Feb 4 at 19:30


















          1














          If A fresh install of cygwin and having the sames issues, make sure to select openssh packages as part of the installation



          The ssh client come with windows 10 only can be used via cmd.exe not cygwin terminal






          share|improve this answer























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            2 Answers
            2






            active

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            2 Answers
            2






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            8














            Documenting my solution in case anyone else has the problem: It appears that a Windows version of OpenSSH was introduced in the 2018 spring update, and it is being called instead of Cygwin's ssh. (See e.g. https://www.zdnet.com/article/openssh-arrives-in-windows-10-spring-update/)



            % which ssh
            /cygdrive/c/WINDOWS/System32/OpenSSH/ssh


            The reason for the sudden problem with ssh is that the cygwin PATH has /cygdrive/c/WINDOWS/System32 ahead of /usr/bin/. Or at least, mine did.



            So the issue is solved by calling /usr/bin/ssh explicitly. (Reordering the PATH is also a possible solution, but not for my environment.)






            share|improve this answer




















            • 1





              /usr/bin does not include ssh on my fresh installation of Cygwin :(

              – Christoph Geschwind
              Jul 8 '18 at 16:13











            • Good point: My cygwin ssh probably came in with the openssl package from the Cygwin installer.

              – JP Mattia
              Jul 9 '18 at 18:37






            • 1





              Cygwin has an openssh package that must be installed to get the ssh client and ssh client tools.

              – Jason Slobotski
              Aug 4 '18 at 2:20







            • 1





              As other comments have hinted at, you must also install openssh, as it is not installed by default.

              – timelmer
              Dec 5 '18 at 4:27











            • if you install openssh (by re-running cygwin installer and selecting the openssh package), "which ssh" command should switch to show "usr/bin/ssh" instead of "cygdrive/c/WINDOWS/..." (without any additional manual path reordering)

              – VeraKozya
              Feb 4 at 19:30















            8














            Documenting my solution in case anyone else has the problem: It appears that a Windows version of OpenSSH was introduced in the 2018 spring update, and it is being called instead of Cygwin's ssh. (See e.g. https://www.zdnet.com/article/openssh-arrives-in-windows-10-spring-update/)



            % which ssh
            /cygdrive/c/WINDOWS/System32/OpenSSH/ssh


            The reason for the sudden problem with ssh is that the cygwin PATH has /cygdrive/c/WINDOWS/System32 ahead of /usr/bin/. Or at least, mine did.



            So the issue is solved by calling /usr/bin/ssh explicitly. (Reordering the PATH is also a possible solution, but not for my environment.)






            share|improve this answer




















            • 1





              /usr/bin does not include ssh on my fresh installation of Cygwin :(

              – Christoph Geschwind
              Jul 8 '18 at 16:13











            • Good point: My cygwin ssh probably came in with the openssl package from the Cygwin installer.

              – JP Mattia
              Jul 9 '18 at 18:37






            • 1





              Cygwin has an openssh package that must be installed to get the ssh client and ssh client tools.

              – Jason Slobotski
              Aug 4 '18 at 2:20







            • 1





              As other comments have hinted at, you must also install openssh, as it is not installed by default.

              – timelmer
              Dec 5 '18 at 4:27











            • if you install openssh (by re-running cygwin installer and selecting the openssh package), "which ssh" command should switch to show "usr/bin/ssh" instead of "cygdrive/c/WINDOWS/..." (without any additional manual path reordering)

              – VeraKozya
              Feb 4 at 19:30













            8












            8








            8







            Documenting my solution in case anyone else has the problem: It appears that a Windows version of OpenSSH was introduced in the 2018 spring update, and it is being called instead of Cygwin's ssh. (See e.g. https://www.zdnet.com/article/openssh-arrives-in-windows-10-spring-update/)



            % which ssh
            /cygdrive/c/WINDOWS/System32/OpenSSH/ssh


            The reason for the sudden problem with ssh is that the cygwin PATH has /cygdrive/c/WINDOWS/System32 ahead of /usr/bin/. Or at least, mine did.



            So the issue is solved by calling /usr/bin/ssh explicitly. (Reordering the PATH is also a possible solution, but not for my environment.)






            share|improve this answer















            Documenting my solution in case anyone else has the problem: It appears that a Windows version of OpenSSH was introduced in the 2018 spring update, and it is being called instead of Cygwin's ssh. (See e.g. https://www.zdnet.com/article/openssh-arrives-in-windows-10-spring-update/)



            % which ssh
            /cygdrive/c/WINDOWS/System32/OpenSSH/ssh


            The reason for the sudden problem with ssh is that the cygwin PATH has /cygdrive/c/WINDOWS/System32 ahead of /usr/bin/. Or at least, mine did.



            So the issue is solved by calling /usr/bin/ssh explicitly. (Reordering the PATH is also a possible solution, but not for my environment.)







            share|improve this answer














            share|improve this answer



            share|improve this answer








            edited May 23 '18 at 16:48

























            answered May 23 '18 at 14:35









            JP MattiaJP Mattia

            11619




            11619







            • 1





              /usr/bin does not include ssh on my fresh installation of Cygwin :(

              – Christoph Geschwind
              Jul 8 '18 at 16:13











            • Good point: My cygwin ssh probably came in with the openssl package from the Cygwin installer.

              – JP Mattia
              Jul 9 '18 at 18:37






            • 1





              Cygwin has an openssh package that must be installed to get the ssh client and ssh client tools.

              – Jason Slobotski
              Aug 4 '18 at 2:20







            • 1





              As other comments have hinted at, you must also install openssh, as it is not installed by default.

              – timelmer
              Dec 5 '18 at 4:27











            • if you install openssh (by re-running cygwin installer and selecting the openssh package), "which ssh" command should switch to show "usr/bin/ssh" instead of "cygdrive/c/WINDOWS/..." (without any additional manual path reordering)

              – VeraKozya
              Feb 4 at 19:30












            • 1





              /usr/bin does not include ssh on my fresh installation of Cygwin :(

              – Christoph Geschwind
              Jul 8 '18 at 16:13











            • Good point: My cygwin ssh probably came in with the openssl package from the Cygwin installer.

              – JP Mattia
              Jul 9 '18 at 18:37






            • 1





              Cygwin has an openssh package that must be installed to get the ssh client and ssh client tools.

              – Jason Slobotski
              Aug 4 '18 at 2:20







            • 1





              As other comments have hinted at, you must also install openssh, as it is not installed by default.

              – timelmer
              Dec 5 '18 at 4:27











            • if you install openssh (by re-running cygwin installer and selecting the openssh package), "which ssh" command should switch to show "usr/bin/ssh" instead of "cygdrive/c/WINDOWS/..." (without any additional manual path reordering)

              – VeraKozya
              Feb 4 at 19:30







            1




            1





            /usr/bin does not include ssh on my fresh installation of Cygwin :(

            – Christoph Geschwind
            Jul 8 '18 at 16:13





            /usr/bin does not include ssh on my fresh installation of Cygwin :(

            – Christoph Geschwind
            Jul 8 '18 at 16:13













            Good point: My cygwin ssh probably came in with the openssl package from the Cygwin installer.

            – JP Mattia
            Jul 9 '18 at 18:37





            Good point: My cygwin ssh probably came in with the openssl package from the Cygwin installer.

            – JP Mattia
            Jul 9 '18 at 18:37




            1




            1





            Cygwin has an openssh package that must be installed to get the ssh client and ssh client tools.

            – Jason Slobotski
            Aug 4 '18 at 2:20






            Cygwin has an openssh package that must be installed to get the ssh client and ssh client tools.

            – Jason Slobotski
            Aug 4 '18 at 2:20





            1




            1





            As other comments have hinted at, you must also install openssh, as it is not installed by default.

            – timelmer
            Dec 5 '18 at 4:27





            As other comments have hinted at, you must also install openssh, as it is not installed by default.

            – timelmer
            Dec 5 '18 at 4:27













            if you install openssh (by re-running cygwin installer and selecting the openssh package), "which ssh" command should switch to show "usr/bin/ssh" instead of "cygdrive/c/WINDOWS/..." (without any additional manual path reordering)

            – VeraKozya
            Feb 4 at 19:30





            if you install openssh (by re-running cygwin installer and selecting the openssh package), "which ssh" command should switch to show "usr/bin/ssh" instead of "cygdrive/c/WINDOWS/..." (without any additional manual path reordering)

            – VeraKozya
            Feb 4 at 19:30













            1














            If A fresh install of cygwin and having the sames issues, make sure to select openssh packages as part of the installation



            The ssh client come with windows 10 only can be used via cmd.exe not cygwin terminal






            share|improve this answer



























              1














              If A fresh install of cygwin and having the sames issues, make sure to select openssh packages as part of the installation



              The ssh client come with windows 10 only can be used via cmd.exe not cygwin terminal






              share|improve this answer

























                1












                1








                1







                If A fresh install of cygwin and having the sames issues, make sure to select openssh packages as part of the installation



                The ssh client come with windows 10 only can be used via cmd.exe not cygwin terminal






                share|improve this answer













                If A fresh install of cygwin and having the sames issues, make sure to select openssh packages as part of the installation



                The ssh client come with windows 10 only can be used via cmd.exe not cygwin terminal







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Jul 25 '18 at 7:51









                skelatorskelator

                112




                112



























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                    Cegueira Índice Epidemioloxía | Deficiencia visual | Tipos de cegueira | Principais causas de cegueira | Tratamento | Técnicas de adaptación e axudas | Vida dos cegos | Primeiros auxilios | Crenzas respecto das persoas cegas | Crenzas das persoas cegas | O neno deficiente visual | Aspectos psicolóxicos da cegueira | Notas | Véxase tamén | Menú de navegación54.054.154.436928256blindnessDicionario da Real Academia GalegaPortal das Palabras"International Standards: Visual Standards — Aspects and Ranges of Vision Loss with Emphasis on Population Surveys.""Visual impairment and blindness""Presentan un plan para previr a cegueira"o orixinalACCDV Associació Catalana de Cecs i Disminuïts Visuals - PMFTrachoma"Effect of gene therapy on visual function in Leber's congenital amaurosis"1844137110.1056/NEJMoa0802268Cans guía - os mellores amigos dos cegosArquivadoEscola de cans guía para cegos en Mortágua, PortugalArquivado"Tecnología para ciegos y deficientes visuales. Recopilación de recursos gratuitos en la Red""Colorino""‘COL.diesis’, escuchar los sonidos del color""COL.diesis: Transforming Colour into Melody and Implementing the Result in a Colour Sensor Device"o orixinal"Sistema de desarrollo de sinestesia color-sonido para invidentes utilizando un protocolo de audio""Enseñanza táctil - geometría y color. Juegos didácticos para niños ciegos y videntes""Sistema Constanz"L'ocupació laboral dels cecs a l'Estat espanyol està pràcticament equiparada a la de les persones amb visió, entrevista amb Pedro ZuritaONCE (Organización Nacional de Cegos de España)Prevención da cegueiraDescrición de deficiencias visuais (Disc@pnet)Braillín, un boneco atractivo para calquera neno, con ou sen discapacidade, que permite familiarizarse co sistema de escritura e lectura brailleAxudas Técnicas36838ID00897494007150-90057129528256DOID:1432HP:0000618D001766C10.597.751.941.162C97109C0155020