For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

ibrahim_37929's avatar
ibrahim_37929
Icon for Nimbostratus rankNimbostratus
Aug 16, 2016

delete port i rule with specific address

Hi i use an i rule for deleting ports on application servers. But the problem is when i called the ip address:port of an application server i rule deletes the ports of application server. So i want t...
application delivery
devops
IP Intelligence Services
iRules
Kai_Wilke's avatar
Kai_Wilke
Icon for MVP rankMVP
Aug 16, 2016

Hi Ibrahim,

you may take a look to the iRule below. It used a less complex syntax using the 

[URI::*]
commands to parse the original 
Location
header to decide if a rewrite is needed. But also uses a 
-glob
based 
[string match]
command to identify IPs within the host values.

when HTTP_RESPONSE {
    if { [set http_location [HTTP::header value "Location"]] ne "" } then {
        if { ( [set uri_port [URI::port $http_location]] >= 9080 ) and 
             ( $uri_port <= 9199 ) and not 
             ( [string match {[0-9]*.[0-9]*.[0-9]*.[0-9]*} [URI::host $http_location]] ) } then {
            HTTP::header replace Location "[substr $http_location 0 ":$uri_port"][findstr $http_location ":$uri_port" 5]"
        }
    }
}

Cheers, Kai