Fortigate Troubleshooting

Below is a few common commands that I have ran through when troubleshooting Fortigate 5.2.X and 5.4.X release products, along with their common explanation:

#This tests the user's account against LDAP and shows which Group Membership gets passed back.
diag test authserver ldap

#These commands resets all settings before doing the other settings below:
diag debug dis
diag debug reset
diag debug flow trace stop
diag debug flow filter clear

#These commands allow certain debugging within the Fortigate, ex. SSL VPN Troubleshooting:
diag debug console timestamp enable
diag debug application sslvpn -1
diag vpn ssl debug-filter src-addr4
diag debug en

#Another common one is to follow a traffic flow:
diagnose debug flow filter addr x.x.x.x
diagnose debug flow show console enable
diagnose debug flow show function-name enable
diagnose debug console timestamp enable
diagnose debug flow trace start 999
diagnose debug enable

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