The File Transfer Protocol (FTP) is a service used for exchanging files between computers across a network. The security device compares actual FTP traffic with maximum settings of what you consider to be normal FTP traffic. The security device considers any traffic exceeding such settings as anomalous.
To modify one or more of the following settings for FTP, enter a new value in the Current column for the parameter you want to adjust, and then click Apply:
Maximum Line Length: Specifies the maximum number of bytes in an FTP command line. Minimum: 1; maximum: 8192; default: 1024.
Maximum Username Length: Specifies the maximum number of bytes for an FTP user name. Minimum: 1; maximum: 8192; default: 32.
Maximum Password Length: Specifies the maximum number of bytes for an FTP password. Minimum: 1; maximum: 8192; default: 64.
Maximum Pathname Length: Specifies the maximum number of bytes in an FTP path name. Minimum: 1; maximum: 8192; default: 512.
Maximum Site String Length: Specifies the maximum number of bytes in an FTP site string. Minimum: 1; maximum: 8192; default: 512.
Maximum Number of Login Failures per Minute: Specifies the maximum number of failed login attempts per minute to an FTP server from a single host. Minimum: 2; maximum: 100; default: 8.