ann kok wrote:

but I put this to no

the ssh is still slow

Did you restart the sshd service after the change? I don't know if it reads the config file otherwise.

I've found that if I'm on an Ubuntu machine and SSHing to a Centos 5.4 machine, it does the same thing, i.e. it sort of hangs for a while then comes back after about 10-15 secs with a login prompt.

I've found that editing the /etc/ssh/ssh_config (note ssh_config, NOT sshd_config) file on the Ubuntu box and *commenting out* the following fixes it immediately, without needing to restart anything:

GSSAPIAuthentication yes GSSAPIDelegateCredentials no

Change the above 2 lines to

#GSSAPIAuthentication yes #GSSAPIDelegateCredentials no

and try again.

On 06/05/10 13:25, ann kok wrote:

but I put this to no

the ssh is still slow

any hints

thank you

On 5/6/10 10:20 AM, "Tait Clarridge" tait@clarridge.ca wrote:

On Thu, 2010-05-06 at 16:39 +0100, Khusro Jaleel wrote:

...

I've found that if I'm on an Ubuntu machine and SSHing to a Centos 5.4 machine, it does the same thing, i.e. it sort of hangs for a while then comes back after about 10-15 secs with a login prompt.

I've found that editing the /etc/ssh/ssh_config (note ssh_config, NOT sshd_config) file on the Ubuntu box and *commenting out* the following fixes it immediately, without needing to restart anything:

GSSAPIAuthentication yes
GSSAPIDelegateCredentials no

Change the above 2 lines to

#GSSAPIAuthentication yes
#GSSAPIDelegateCredentials no

and try again.

On 06/05/10 13:25, ann kok wrote:

...

but I put this to no

the ssh is still slow

any hints

thank you

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CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos

Try disabling both reverse DNS and GSSAPIAuthentication

http://www.taiter.com/blog/2009/04/disabling-reverse-lookup-for-s.html

Tait

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CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos

Unless of course you ARE using GSSAPI for auth (environment using Kerberos for auth), and then at that point, you need to look at the connection between you, the server in question, and your KDC. If that is having hiccups, you'll get slow authentication speeds.