Fortigate – useful log related cli commands I use.

I use these commands whenever I have problems with the log facility and I need to reset it.

Set the maximum size of the memory buffer log, in bytes. (Default 98304)

config log memory global-setting
set max-size 102400

Clear all logs

execute log delete-all

Memory log settings

config log memory setting
set diskfull overwrite
set status enable
end

Send log report to gui

config log setting
set gui-location memory

Format the log disk
First change the log location in the gui to something else (like memory) and than go to cli and run (the fortigate will restart after that) use with caution!.

execute formatlogdisk