User Manual

Configuring CLI Access Security
32 Enterasys X-Pedition User Reference Manual
Table 3. Password Combinations
Good network security includes the use of strong passwords. Although no password is infallible, a
strong password equals a more secure system. For a password to be strong and hard to break, it
should:
• Be at least seven characters long.
• Contain characters from each of the following groups:
• Have at least one symbol character in the second through sixth positions.
• Be significantly different from prior passwords.
• Not contain your name or user name.
• Not be a common word or name.
Number of Characters in
Password
Possible Combinations
(Letters A-Z only)
Possible Combinations
(Letters A-Z, with numbers 0-9)
12636
2 676 1,296
3 17,576 46,656
4 456,976 1,679,616
5 11,881,376 60,466,176
6 308,915,776 2,176,782,336
7 8,031,810,176 78,364,164,096
8 208,827,064,576 2,821,109,907,456
9 5,429,503,678,976 101,559,956,668,416
10 141,167,095,653,376 3,656,158,440,062,980
Description Examples
Letters (uppercase and lowercase) A, B, C,...; a, b, c,...
Numerals 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
Symbols ` ~ ! @ # $ % ^ & * ( ) _ + - = { } | [ ] \ : " ; ' < > ? , . /