Zorp assigns a session identifier to each session that goes through it. This session ID is unique during a single run.
The session ID is made up from the following parts:
instance name (as specified with the --as command line option).
service name (as named in the policy file)
service instance number (sequence number) with a ':' prepended, if the message belongs to a given instance.
proxy module sending the message, if applicable.
The parts discussed above are separated by a slash (/), and the whole session id is enclosed in parentheses.
Example 3-1. Sample session ID
(zorp/intra_http:123/http)
zorp is the instance name,
intra_http is the name of the service
:123 is the sequence number of the service instance
http is the module name this message was sent by.
Messages that are not related to a service are using a fake session ID with service name: "nosession".