This command configured the built-in services password filtering engine. This can be used to enforce limitations on what is a valid password. It can be very useful because it can prevent users from using their nickname, channel name or the word "password" as their password.
/as services set passwdfilter none
/as services set passwdfilter basic
/as services set passwdfilter extended
Passwords must always be at least 4 characters long, but not longer than 32 characters, and cannot contain non-printable characters, such as the "bold attribute" (Ctrl-B in mIRC) or the "color attribute" (Ctrl-K in mIRC). Each setting implies all restrictions imposed by lower settings
The following restrictions apply only when the filter level is set to "basic":
The minimum password length is increased to 6 characters
The password cannot contain the word "password" or"drowssap"
The password of a nickname cannot contain the nickname being registered
The password of a channel cannot contain the name of the channel being registered
The following restrictions apply only when the filter level is set to "extended":
The password must contain at least one character from at least two of the following character groups: uppercase letters (A-Z), lowercase letters (a-z), digits (0-9) and symbols (punctuation marks, currency symbols, arithmetic operators, etc)
The password of a nickname cannot contain the e-mail address or "real name" field of the nickname being registered
The password of a channel cannot contain the description of the channel being registerered
The password of a channel cannot be the same as the password of the channel founder's nickname.