From: Gordon Thiesfeld <gthiesfeld@...>
Date: 2008-04-17T05:56:50+09:00
Subject: Re: Check if remote server exists

On Wed, Apr 16, 2008 at 3:18 PM, Michael Linfield
<globyy3000@hotmail.com> wrote:
> > Could I use the server name instead of the IP in the same way?
>
>  Yea no problem there, however I will issue the warning of this:
>
>  Wouldn't be hard for someone to slip a del -qf *.* in that system call
>  and wipe out your drive, at least thats what I think it is on windows.
>  Just be careful who you let around it :)
>
>  If its just you using it, shouldn't have any problem at all.
>
>  Regards,
>
>  - Mac

Another way is to check if the server is listening on a port an
Exchange server would listen on, like IMAP4(143), or SMTP(25)

>> require 'ping'
=> true
>> Ping.pingecho('exchange_server',5,143)
=> true

Hope that helps,

Gordon