Allied Telesis AR400 SERIES Software Release 2.7.1 - Manual (Page 18)

18 AR400 Series Router User Guide
Software Release 2.7.1
C613-02021-00 REV F
Choosing a Password
All users, including managers, should take care in selecting passwords. Tools
exist that enable hackers to guess or test many combinations of login names
and passwords easily. The User Authentication Facility (UAF) provides some
protection against such attacks by allowing the manager to set the number of
consecutive login failures allowed and a lockout period when the limit is
exceeded.
However, the best protection against password discovery is to select a good
password and keep it secret. When choosing a password:
■ Do make it six or more characters in length. The UAF enforces a minimum
password length, which the manager can change. The default is six
characters.
■ Do include both alphabetic (a–z) and numeric (0–9) characters.
■ Do include both uppercase and lowercase characters. The passwords
stored by the router are case-sensitive, so “bgz4kal” and “Bgz4Kal” are
different.
■ Do avoid words found in a dictionary, unless combined with other random
alphabetic and numeric characters.
■ Do not use the login name, or the word “password” as the password.
■ Do not use your name, your mother’s name, your spouse’s name, your
pet’s name, or the name of your favourite cologne, actor, food or song.
■ Do not use your birth date, street number or telephone number.
■ Do not write down your password anywhere.
Make sure you remember the new password created as you cannot retrieve a
lost password. Recovery of access to the router is complex.
Once you have logged into the manager account you are able to enter
commands from this guide and from the Software Reference.
Using the Commands
You control the router with commands described in this document and in the
Software Reference. While the keywords in commands are not case sensitive,
the values entered for some parameters are (especially passwords). The router
supports command line editing and recall. Command line editing functions
and keystrokes are shown in Table 2.
Table 2: Command line editing functions and keystrokes
Function VT100 Terminal Dumb terminal
Move cursor within command line
←, →
Not available
Delete character to left of cursor [Delete] or [Backspace] [Delete] or [Backspace]
Toggle between insert/overstrike [Ctrl/O] Not available
Clear command line [Ctrl/U] [Ctrl/U]