Manual:$wgShellboxSecretKey

Shell and process control: $wgShellboxSecretKey
The secret key for HMAC verification of Shellbox requests.
Introduced in version:1.36.0 (Gerrit change 626548; git #99392f3b)
Removed in version:still in use
Allowed values:(string) or null
Default value:Unspecified

Details edit

The secret key for HMAC verification of Shellbox requests. Set this to a long random string.