Visit Our UNIX and Linux User Community

Full Discussion: Increase Password length
Operating Systems Linux Red Hat Increase Password length Post 302357738 by nixnoob on Wednesday 30th of September 2009 12:57:43 PM
Old 09-30-2009
Are you trying a standard user account when you make these changes or a root user? In RH some password requirements don't work under root or sudo.

Create a standard user...Set your password minlen to 10...then log in as the user and try changing the password to an 8 character password. It should give an error message.
 
Test Your Knowledge in Computers #130
Difficulty: Easy
The original Unix code was developed by AT&T.
True or False?

9 More Discussions You Might Find Interesting

1. AIX

password length

hi friends, anybody know how many character of password length in aix5.3? please help me TIA bong (1 Reply)
Discussion started by: bong02
1 Replies

2. HP-UX

minimum password length

Dear frnds, how i can make the password 5chs minimum length in hp-ux 11i ? pls help regards (3 Replies)
Discussion started by: jestinabel
3 Replies

3. UNIX for Dummies Questions & Answers

How to increase the maximum record length

Hi, I need to create a file of record length more than 300 characters. But in my unix box, i am able to create a file only with a maximum of 256 characters per record. Is there anyway i can create a file with more than 300 characters in this case? Or How to increase the maximum record... (1 Reply)
Discussion started by: mahish20
1 Replies

4. AIX

AIX 5.3 userid password length to 6

Hi All, How can I make the password of only two userid with 6 length while others are using regular policy of 8 or more length. Please help. Thanks. (2 Replies)
Discussion started by: itik
2 Replies

5. Solaris

Enforcing password length.

I would like to enforce the users to use 15 character passwords. I have edited the /etc/default/passwd and given PASSLENGTH=15. What i noticed is that when user changes the password next time, it will enforce the a 15 character password but during the next logon, it verifies only first 8... (5 Replies)
Discussion started by: uxadmin007
5 Replies

6. Red Hat

Security Question: Lock after invalid login, Session Lock and Required Minimum Password Length

Hello all, If anyone has time, I have a few questions: How do I do the following in Linux. We are using Red Hat and Oracle Enterprise Linux, which is based on Red Hat too. 1. How to lock the account after a few (like 3) invalid password attempts? 2. How do you lock a screen after 30... (1 Reply)
Discussion started by: nstarz
1 Replies

7. UNIX for Advanced & Expert Users

How to increase max username length?

Hi, This is my first post to this site. So kindly forgive if I am writing in a wrong section. My query is that... I want to modify the max username length size. I guess it is 32/64 on CentOS. Now I want to change it to 128. Is there any way to do that? Thanks in advance!! :) (4 Replies)
Discussion started by: ajay303
4 Replies

8. Shell Programming and Scripting

Flat file-make field length equal to header length

Hello Everyone, I am stuck with one issue while working on abstract flat file which i have to use as input and load data to table. Input Data- ------ ------------------------ ---- ----------------- WFI001 Xxxxxx Control Work Item A Number of Records ------ ------------------------... (5 Replies)
Discussion started by: sonali.s.more
5 Replies

9. Shell Programming and Scripting

Increase command length for ksh shell on Redhat Linux

I have a ksh shell script and i need to pass arguments which are generated by data pulled from a database. When the argument to the shell script is too long (about 4000 charecters) the below is the issue observed. I copy the command which is 4000 charecters long from the logs and paste it... (7 Replies)
Discussion started by: mohtashims
7 Replies
SHADOW(5)							File Formats Manual							 SHADOW(5)

NAME
shadow - encrypted password file DESCRIPTION
shadow contains the encrypted password information for user's accounts and optional the password aging information. Included is Login name Encrypted password Days since Jan 1, 1970 that password was last changed Days before password may be changed Days after which password must be changed Days before password is to expire that user is warned Days after password expires that account is disabled Days since Jan 1, 1970 that account is disabled A reserved field The password field must be filled. The encryped password consists of 13 to 24 characters from the 64 character alphabet a thru z, A thru Z, 0 thru 9, . and /. Refer to crypt(3) for details on how this string is interpreted. The date of the last password change is given as the number of days since Jan 1, 1970. The password may not be changed again until the proper number of days have passed, and must be changed after the maximum number of days. If the minimum number of days required is greater than the maximum number of day allowed, this password may not be changed by the user. An account is considered to be inactive and is disabled if the password is not changed within the specified number of days after the pass- word expires. An account will also be disabled on the specified day regardless of other password expiration information. This information supercedes any password or password age information present in /etc/passwd. This file must not be readable by regular users if password security is to be maintained. FILES
/etc/passwd - user account information /etc/shadow - encrypted user passwords SEE ALSO
chage(1), login(1), passwd(1), su(1), passwd(5), pwconv(8), pwunconv(8), sulogin(8) AUTHOR
Julianne Frances Haugh (jockgrrl@ix.netcom.com) SHADOW(5)

Featured Tech Videos

All times are GMT -4. The time now is 02:27 PM.
Unix & Linux Forums Content Copyright 1993-2020. All Rights Reserved.
Privacy Policy