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Dean_M_21414's avatar
Dean_M_21414
Icon for Nimbostratus rankNimbostratus
Mar 16, 2011

Issue with GET in monitor

Hi all,     We have several IIS6 webservers, each with multiple sites, all using the same IP and port (80), being differentiated by host headers.     When we create an HTTP monitor on the ...
management
monitoring
George_Watkins_'s avatar
George_Watkins_
Historic F5 Account
Mar 16, 2011
Hi Dean,

I tested 'GET /' without any HTTP version specification against a default IIS 6.1 deployment and didn't have any issues: 

% telnet 10.0.0.12 80
Trying 10.0.0.12...
Connected to 10.0.0.12.
Escape character is '^]'.
GET /




Test page


Test

Connection closed by foreign host.

If you are running name-based virtual hosts, then you'll need to specify HTTP/1.1 as 'host' headers weren't introduced until version 1.1. I wrote an article a while back on better HTTP monitors (kind of a misleading title): http://devcentral.f5.com/weblogs/watkins/archive/2010/08/18/clean-up-those-webaccelerator-performance-reports.aspx

If you want a plethora of information on the differences between HTTP/1.0 and 1.1, look here: http://www8.org/w8-papers/5c-protocols/key/key.html

Hope this helps,

George