Question

ssh: connect to host localhost port 22: Connection refused

Asked by: amjava

I installed cygwin with openSSh on my windows vista box. I turned off my firewall but I still get this error -


$ ssh localhost
ssh: connect to host localhost port 22: Connection refused
 
I have a linksys  Wireless-G Broadband Router.

What do I have to do to open up port 22?

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Asked On
2008-08-07 at 19:14:22ID23631555
Topics

CYGWIN

,

SSH / Telnet Software

,

Network Routers

Participating Experts
1
Points
500
Comments
4

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Answers

 

by: mchkorgPosted on 2008-08-08 at 01:39:22ID: 22188285

Hi,
It sounds like you installed SSH (client and server) but only tried the client connection, with no server actually installed.
Check your services "start -> run -> services.msc" and see if you have a line "Cygwin SSHD".

If not, do the following (code attached), it'll install your Cygwin SSHD server and make it a windows service (started automatically at boot time)
Careful: first time you'll have to start it manually.

Test again your "ssh localhost" command. Or, "telnet localhost 22" it should answer if the connection is done (CTRL-$ then quit to quit)

$ ssh-host-config
Generating /etc/ssh_host_key
Generating /etc/ssh_host_rsa_key
Generating /etc/ssh_host_dsa_key
Generating /etc/ssh_config file
Privilege separation is set to yes by default since OpenSSH 3.3.
However, this requires a non-privileged account called 'sshd'.
For more info on privilege separation read /usr/share/doc/openssh/README.privsep.
 
Should privilege separation be used? (yes/no) yes
Warning: The following function requires administrator privileges!
Should this script create a local user 'sshd' on this machine? (yes/no) yes
Generating /etc/sshd_config file
Added ssh to C:\WINDOWS\system32\drivers\etc\services
 
 
Warning: The following functions require administrator privileges!
 
Do you want to install sshd as service?
(Say "no" if it's already installed as service) (yes/no) yes
 
Which value should the environment variable CYGWIN have when
sshd starts? It's recommended to set at least "ntsec" to be
able to change user context without password.
Default is "ntsec".  CYGWIN=ntsec
 
The service has been installed under LocalSystem account.
To start the service, call `net start sshd' or `cygrunsrv -S sshd'.
 
Host configuration finished. Have fun!

                                              
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by: mchkorgPosted on 2008-08-08 at 01:40:52ID: 22188290

I forgot something : reactivate your firewall!
This firewall doesn't monitor localhost connections.

You'll have to open TCP/22 (or find the sshd exe) to allow remote connection from another IP.

20120131-EE-VQP-002

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