[ale] Why is SSH login slow?

[Transam]

> It probably cannot reverse lookup your IP address.  Either tell the SSH
> server to not reverse lookup you IP (Bad idea), or add your IP to the hosts
> file or the DNS server.

Or the SSH server could be attempting to do an Ident on you.  If the proxy
Firewall is doing IP Masquerading (NAT) then does it also have an Ident
server (hopefully configured for security)?

> John

Bob

> -----Original Message-----
> From: John Mills [mailto:jmmills at telocity.com]
> Sent: Wednesday, March 20, 2002 10:51 AM
> To: Atlanta Linux Enthusiasts
> Subject: [ale] Why is SSH login slow?

> When I login onto my home RH6.2 box from work, from behind a proxy
> firewall, there is a delay of about 15 seconds between puTTY opening its
> console window, and my receiving the 'login' prompt, but no appreciable
> delay to request my password and authenticate the login. I do not recall
> such a delay when I was working my older setup and using SSH protocol 1.

> When I do a 'localhost' login on the same box, there are no appreciable
> delays.

> When I login to a RH7.2 box on my LAN at work (same domain as the MsWin
> 'puTTY' box), I get an immediate 'login:' prompt, then a confirmation of
> the username sent, and _then_ a delay - 15 to 18 seconds - before I am
> asked for the password.
> ...
>  - John Mills

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