[clue] Downtime.

[David L. Willson]

If it was a static page, you could check the md5sum, too. 
If the whole site was static, you could md5sum the whole site. 
Then, you'd get a beacon every time anything changed: site down, or content change. 

beacon is the new bacon. 

-- 
David L. Willson 
Teacher, Engineer, Evangelist 
RHCE+Satellite CCAH Network+ A+ Linux+ LPIC-1 UbuntuCP NovellCLA 
Mobile 720-333-LANS(5267) 
http://sofree.us 

This is a good time for a r3VOLution. 

----- Original Message -----

> It seems like you'd want something that checked the page from
> outside. If you scripted something and set it up as a cron, you'd
> only find out about it if the server was otherwise functional. I can
> set up a check on my Nagios server, though there might be gratis
> services on the Internet that do that. If so, I haven't found any.

> If you're interested, the simple check that I usually use to check
> sites looks like this (Nagios is CRITICAL on exit 2, OK on exit 0):

> #!/bin/bash

> Catch() {
> code=$1
> message=$2

> if [[ $code -ne 0 ]]
> then
> echo "ERROR: $message. Returned $code"
> exit 2
> fi
> }

> url='http://<some page on my site>'

> string='<some string that's on my page when it's working>'
> contents=$(curl -s $url)

> Catch $? "Could not connect to $url"
> echo "$contents" | grep "$string" > /dev/null
> Catch $? "Couldn't find $string in $url"
> echo "OK: Found $string in $url"
> exit 0

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