Technical Tip: Behavior of Local Administrator Credential with Special Character when Upgraded

[rbernal]

Description	This article describes the behavior of Local Administrator Credential with Special Character when upgraded to v7.4 version and higher.
Scope	FortiGate v7.4 and v7.6.
Solution	Starting from v7.4, the  configuration of Admin credentials should strictly follow the following format: Include lower and upper case letters (a-z, A-Z), numbers (0-9), underscores (_), and dashes (-). Cannot start with a dash (-). Can end with dollar symbol ($). Related document: FortiOS 7.4.0 New features or enhancements If the FortiGate Firmware is v7.2 and has a Local Administrator Credential that does not follow the format mentioned above, this format of Local Administrator Credential will be allowed to be inherited and will not change if the FortiGate is upgraded to v7.4 and v7.6.  For testing purposes, -test.num1 Local Administrator was created on v7.2.11: Screenshots below will show that the -test.num1 Local Administrator was inherited by v7.4.8 and v7.6.3 after the firmware upgrade.   V7.4.8 Screenshot of Local Admin configuration: V7.4.8 Screenshot where the -test.num1 is logged in: V7.6.3 Screenshot of Local Admin configuration:   V7.6.3 Screenshot where the -test.num1 is logged in: