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Forum Discussion

Don_22992's avatar
Don_22992
Icon for Nimbostratus rankNimbostratus
Apr 02, 2008

stubborn 4xx/5xx Error Handler

I am sure this is simple....     I have the following iRule to redirect 4xx & 5xx errors to a page on a backend server. It works great - once I have sucessfully connected to the site once! What ...
application delivery
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devops
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hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Apr 07, 2008
Hi Don,

 

 

So this was case 2?

 

 

 

Requested "my.domain.com/DJ-Boston.jpg" (modified uri to force a 404 error); Received from browser "Internet Explorer cannot display the webpage":

 

 

Apr 3 11:32:28 tmm tmm[1627]: Rule stg-errors : 192.168.16.149:64126: Request my.domain.com generated response status: 404

 

Apr 3 11:32:28 tmm tmm[1627]: Rule stg-errors : 192.168.16.149:64126: Redirecting to 4xx.htm

 

 

 

 

 

Typically, you'd get the page cannot be displayed error when a TCP reset is sent to the client. If this was due to the iRule, I'd expect to see a TCL error. If you grep for TCL error in the ltm log file, do you find any matches (grep -i 'tcl error' /var/log/ltm')?

 

 

What version of BIG-IP code are you running? If you remove any ASM-enabled HTTP classes from the VIP, does the client get correctly redirected to 4xx.htm?

 

 

Aaron