Tente desativar a separação de privilégios em /etc/sshd_config
SO: Windows 7 x64
Cygwin: 1.7.15-1
OpenSSH: 6.0p1-1
Estou tentando instalar um servidor SSH no Windows 7. O tutorial que estou seguindo para fazer isso está aqui: link
A questão é que, ao executar o comando net start sshd , recebo a seguinte saída:
The CYGWIN sshd service is starting. The CYGWIN sshd service could not be started.The service did not report an error.
More help is available by typing NET HELPMSG 3534.
Aqui está a saída completa da configuração:
AdminUser@ThisComputer ~ $ ssh-host-config *** Info: Generating /etc/ssh_host_key *** Info: Generating /etc/ssh_host_rsa_key *** Info: Generating /etc/ssh_host_dsa_key *** Info: Generating /etc/ssh_host_ecdsa_key *** Info: Creating default /etc/ssh_config file *** Info: Creating default /etc/sshd_config file *** Info: Privilege separation is set to yes by default since OpenSSH 3.3. *** Info: However, this requires a non-privileged account called 'sshd'. *** Info: For more info on privilege separation read /usr/share/doc/openssh/README.privsep. *** Query: Should privilege separation be used? (yes/no) yes *** Info: Note that creating a new user requires that the current account have *** Info: Administrator privileges. Should this script attempt to create a *** Query: new local account 'sshd'? (yes/no) yes *** Info: Updating /etc/sshd_config file *** Query: Do you want to install sshd as a service? *** Query: (Say "no" if it is already installed as a service) (yes/no) yes *** Query: Enter the value of CYGWIN for the daemon: [] *** Info: On Windows Server 2003, Windows Vista, and above, the *** Info: SYSTEM account cannot setuid to other users -- a capability *** Info: sshd requires. You need to have or to create a privileged *** Info: account. This script will help you do so. *** Info: You appear to be running Windows XP 64bit, Windows 2003 Server, *** Info: or later. On these systems, it's not possible to use the LocalSystem *** Info: account for services that can change the user id without an *** Info: explicit password (such as passwordless logins [e.g. public key *** Info: authentication] via sshd). *** Info: If you want to enable that functionality, it's required to create *** Info: a new account with special privileges (unless a similar account *** Info: already exists). This account is then used to run these special *** Info: servers. *** Info: Note that creating a new user requires that the current account *** Info: have Administrator privileges itself. *** Info: No privileged account could be found. *** Info: This script plans to use 'cyg_server'. *** Info: 'cyg_server' will only be used by registered services. *** Query: Do you want to use a different name? (yes/no) no *** Query: Create new privileged user account 'cyg_server'? (yes/no) yes *** Info: Please enter a password for new user cyg_server. Please be sure *** Info: that this password matches the password rules given on your system. *** Info: Entering no password will exit the configuration. *** Query: Please enter the password: *** Query: Reenter: *** Info: User 'cyg_server' has been created with password '[CENSORED]'. *** Info: If you change the password, please remember also to change the *** Info: password for the installed services which use (or will soon use) *** Info: the 'cyg_server' account. *** Info: Also keep in mind that the user 'cyg_server' needs read permissions *** Info: on all users' relevant files for the services running as 'cyg_server'. *** Info: In particular, for the sshd server all users' .ssh/authorized_keys *** Info: files must have appropriate permissions to allow public key *** Info: authentication. (Re-)running ssh-user-config for each user will set *** Info: these permissions correctly. [Similar restrictions apply, for *** Info: instance, for .rhosts files if the rshd server is running, etc]. *** Info: The sshd service has been installed under the 'cyg_server' *** Info: account. To start the service now, call 'net start sshd' or *** Info: 'cygrunsrv -S sshd'. Otherwise, it will start automatically *** Info: after the next reboot. *** Info: Host configuration finished. Have fun! AdminUser@ThisComputer ~ $ net start sshd The CYGWIN sshd service is starting. The CYGWIN sshd service could not be started. The service did not report an error. More help is available by typing NET HELPMSG 3534.
Note que na linha *** Query: Enter the value of CYGWIN for the daemon: [] não entrei nada. Os tutoriais geralmente usam o ntsec ou ntsec tty , mas essas opções são removidas da versão mais recente do OpenSSH. Eu tentei usá-los de qualquer maneira e o resultado é o mesmo.
O arquivo /var/log/sshd.log está vazio. Se eu tentar apenas executar o comando /usr/sbin/sshd , obtenho a saída /var/empty must be owned by root and not group or world-writable. . O diretório / var / empty possui as seguintes permissões: drwxr-xr-x+ 1 cyg_server root 0 May 29 15:28 empty . As pesquisas do Google sobre esse erro não ativaram nenhuma correção de trabalho. Uma pessoa parece ter resolvido isso usando o comando chown SYSTEM /var/empty , mas isso não corrigiu no meu caso.
No Cygwin, /var/empty deve ser de propriedade do usuário que está executando sshd . (A menos que você desative a separação de privilégios!)
De um e-mail útil para a lista de e-mails da Cygwin em 2012 por Corinna Vinschen
Usually sshd tests if /var/empty is owned by uid 0. On Cygwin, where there's usually no user with uid 0, the code has been modified to test if /var/empty is owned by the user running sshd. So, if you start sshd on the command line, you have to chown /var/empty to the current user account. Same goes for the ssh-related files under /etc. The error message is the vanilla upstream error message. It hasn't been changed for Cygwin to keep the Cygwin-related upstream patchset small.
No meu caso, tive um conflito com outro serviço. Eu instalei o teste Bitvise para tentar hospedar um servidor SSH.
Quando eu instalei o Cygwin OpenSSH, eu preciso desligar o serviço Bitvise para poder iniciar o Cygwin sshd.