More details on F5 APM getsid and getkey

These are related to the outputs from the

sessiondump

command line utility. (or GUI equivalent)

https://devcentral.f5.com/wiki/iRules.ACCESS__user.ashx

https://support.f5.com/kb/en-us/products/big-ip_apm/manuals/product/apm-visual-policy-editor-12-0-0/6.html

set user_key {}

sets a variable 'user_key' as an empty list

append user_key $http_user "." $user_hash   MD5 hash / hex encoded userpassword+IP+URL

appends the list with other information based on other variables (defined elsewhere)

set apm_cookie_list [ACCESS::user getsid $user_key]

returns the list of created external SIDs which is associated wit the specified key and stores in variable 'apm_cookie'

set apm_cookie [ACCESS::user getkey [lindex $apm_cookie_list 0]]

Returns the original SID for specified hash of SID (uses list to return the key)

HTTP::cookie insert name MRHSession value $apm_cookie

inserts a cookie based on the returned session values