squid_session(8) on Linux
The text 1b0af33628ba, as Debian 4.0 (Etch) shipped it.
Squid session tracking external acl group helper
Flags it lists
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-a -
-b
The text 1b0af33628ba, as Debian 4.0 (Etch) shipped it.
Squid session tracking external acl group helper
-a
-b