Where to turn SSHv1 protocol and SSHv2 protocol on and off

Minnie Nguyen · 07-05-2006, 12:41 PM

On Red Hat Linux Enterprise version 3, I see in the /etc/ssh directory, the file sshd_config which has entries for SSHv1 and SSHv2 protocol. Howevr, majority of the entries are commented out. SSHv1 and SSHv2 are enabled since I can ssh to the remote ssh server host.

Where do I turn SSHv1 or SSHv2 on and off?

acid_kewpie · 07-05-2006, 01:12 PM

it's thie bit that says somethign like

Code:

#Protocol 2,1
Protocol 2

that's only using v2, swap the # comment tag over and it will try v2 first then v1

Minnie Nguyen · 07-05-2006, 01:22 PM

Quote:

Originally Posted by acid_kewpie

it's thie bit that says somethign like

Code:

#Protocol 2,1
Protocol 2

that's only using v2, swap the # comment tag over and it will try v2 first then v1

I know where in the sshd_config file to turn on SSHv1 and SSHv2 on and off; however, majority of the lines including the above are commented out. When I uncommented the protocols for SSHv1 and SSHv2, and restarted the ssh daemon, ssh stopped working.

acid_kewpie · 07-05-2006, 02:12 PM

i guess you did i wrong then... you'd only have one single protocol line. using ssh debugging is very useful to see what's going on. just enable it on the command line in the client and you'll get lots more useful info.