Forum Discussion
ju_mah_47995
Nimbostratus
NimbostratusHttp monitor with the no-cache field applied
Hello,
I would like to monitor that google.fr is reachable through out our Proxies Servers, and that the page is not a cached response.
To do that, I tried to put the following in the "Send String" box of the default "http monitor":
GET http://www.google.fr/ HTTP/1.1\n Pragma: no-cache\n Cache-Control: no-cache\n
Unfortunatly, it doesn't work.
What's is the correct syntax to do this kind of test ?
Thanks for your help...
Regards,
Ju
hooleylistCirrostratus
Hi Ju,
The exact send string format has changed over the different LTM versions. Which LTM version are you running?
Aaron
ju_mah_47995Hi Hoolio,
My ltm version is 10.1
Ju- hooleylistHi Ju,
In 10.2 bigd appends two CRLF's to the end of the monitor send string. In 10.2.0, this was changed so bigd doesn't modify the send string:
SOL10655: Change in Behavior: CR/LF characters appended to the HTTP monitor Send string
http://support.f5.com/kb/en-us/solutions/public/10000/600/sol10655.html
So for 10.1, you could use something like this:
GET http://www.google.fr HTTP/1.1\r\nPragma: no-cache\r\nCache-Control: no-cache
Make sure to specify a receive string with text that is only found in a successful response's headers or payload (the first ~5k).
When you upgrade to 10.2.0 or higher, you'll want to add \r\n\r\n to the end of the send string.
Aaron - ju_mah_47995Thank Hoolio for your help,
To improve performance , I have just replaced the GET by the HEAD method , and it works perfectly.
HEAD http://www.google.fr HTTP/1.1\r\nPragma: no-cache\r\nCache-Control: no-cache
Regards,
Ju - ju_mah_47995Thank Hoolio for your help,
To improve performance , I have just replaced the GET by the HEAD method , and it works perfectly.
HEAD http://www.google.fr HTTP/1.1\r\nPragma: no-cache\r\nCache-Control: no-cache
Regards,
Ju - ju_mah_47995Thank Hoolio for your help,
To improve performance , I have just replaced the GET by the HEAD method , and it works perfectly.
HEAD http://www.google.fr HTTP/1.1\r\nPragma: no-cache\r\nCache-Control: no-cache
Regards,
Ju