User Types - D-Link DFL-1600 User Manual

17.1. Authentication Overview
Find the notes that recording the password, or ask the user directly.
Many people tend to write the passwords down on paper, and they
may tell a password to someone they trust, which are potential
leakages.
Crack:
Exhaustive search by some software crackers. Passwords with short
length or less random characters are easily cracked.
Counter Measures
To prevent the "Guess" and "Crack" attacks, a GOOD password should be:
containing more than 8 characters with no repeating
random characters which are not commonly used phrases
containing small and capital characters
containing numbers and special characters
For password maintenance, some guidelines are available as listed below:
password should not be recorded anywhere – on paper or in a
computer file
never reveal your password to anyone
passwords should be regularly changed to counter any undetected
compromises
choosing the passwords that can be typed fast to prevent observing
by someone nearby.
Although the above conditions may seem strict and inconvenient, they are
intended for securing both the users' rights and properties, and the
protected network system. A good selection of password also helps in
protecting the Layer 2 tunnels, which apply encryption on the basis of user
input passwords (See
17.1.3

User Types

D-Link firewalls and authentication schemes give support to diverse users.
The user types can be:
administrators
22.2 PPTP/L2TP).
D-Link Firewalls User's Guide
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