How to increase the size of upload file size in ASM

via system variable "long_request_buffer_size" untill 20MB

via system variable "long_request_buffer_size" untill 20MB

All solutions I have seen so far will either increase the upload limit globally, or disable ASM for a specific URI as shown in the irule. The iRule can be enhanced to do other checks, like only disabling ASM for some trusted IP addresses,..etc.

+++ Following is A simple iRule that will disable ASM for a subset of IP addresses++++ +++ You need to create a data group that contains the list of allowed IP addresses++++

ltm rule /Common/disable-asm-for-ip {

when HTTP_REQUEST {

if {( [class match [IP::client_addr] equals my-IP-list-data-group] ) } {

   ASM::disable
log local0. "ASM disabled for [IP::client_addr]."
}

else { ASM::enable "/Common/jt-vs"

log local0. "ASM enabled. Current ASM policy is [ASM::policy]"

}

}

}

++++Sample data group with a list of IP addresses++++

ltm data-group internal /Common/my-IP-list-data-group {

records {
    10.12.0.32/32 { }
    10.12.0.33/32 { }
    10.12.0.34/32 { }
}
type ip

}

Above irule will once again disable ASM altogether for a give IP. if you know the URI for file upload (Depending on the application), you can combine the first and second iRule with (AND), that would be more effective and more secure. The users with certain IPs will have ASM disabled only when they are trying to upload...