Linux turn OFF password expiration / Aging

Linux turn OFF password expiration / Aging

/etc/shadow stores actual password in encrypted format for user’s account with additional properties related to user password.

The password expiration information for a user is contained in the last 6 fields. Password expiration for a select user can be disabled by editing the /etc/shadow file. However I recommend using chage command. The chage command changes the number of days between password changes and the date of the last password change. This information is used by the system to determine when a user must change his/her password.

To list current aging type chage command as follows:
# chage -l avinash
Output:
Last password change : May 22, 2007
Password expires : never
Password inactive : never
Account expires : never
Minimum number of days between password change : 0
Maximum number of days between password change : 99999
Number of days of warning before password expires : 7

To disable password aging / expiration for user foo, type command as follows and set:Minimum Password Age to 0Maximum Password Age to 99999Password Inactive to -1A ccount Expiration Date to -1
Interactive mode command:# chage username
OR
# chage -I -1 -m 0 -M 99999 -E -1 username

Thanks & Regards

Avinash Pillai

URL : http://avinashpillai.blogspot.com

Email: avinashp25[AT]gmail[DOT]com

Comments

Adding a New Hard Drive to Linux using LVM

I did this on RHEL 5.5. You should have the new drive created and added to the machine before you start anything.First you need to fdisk the drive like any other drive in linux. One key step is that you need to change the type; option ?t? to ?8e? for lvm. root@itsme ~# fdisk /dev/sdc Device contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabel Building a new DOS disklabel. Changes will remain in memory only,until you decide to write them. After that, of course, the previous content won't be recoverable. The number of cylinders for this disk is set to 7832. There is nothing wrong with that, but this is larger than 1024, and could in certain setups cause problems with: 1) software that runs at boot time (e.g., old versions of LILO) 2) booting and partitioning software from other OSs (e.g., DOS FDISK, OS/2 FDISK) Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite) Command (m for help): n Command action e ex

Seven Personal Qualities Found In A Good Leader

Whether in fact a person is born a leader or develops skills and abilities to become a leader is open for debate. There are some clear characteristics that are found in good leaders. These qualities can be developed or may be naturally part of their personality. Let us explore them further. Seven Personal Qualities Found In A Good Leader: 1. A good leader has an exemplary character. It is of utmost importance that a leader is trustworthy to lead others. A leader needs to be trusted and be known to live their life with honestly and integrity. A good leader “walks the talk” and in doing so earns the right to have responsibility for others. True authority is born from respect for the good character and trustworthiness of the person who leads. 2.A good leader is enthusiastic about their work or cause and also about their role as leader. People will respond more openly to a person of passion and dedication. Leaders need to be able to be a source of inspiration, and be a

Various Types of Hunt Groups

Various Types of Hunt Groups * Sequential Hunt Groups * Peer Hunt Groups * Longest-Idle Hunt Groups * Parallel Hunt Groups (Call Blast) Sequential Hunt Groups In a sequential hunt group, extensions always ring in the order in which they are listed, left to right, when the hunt group is defined. The first number in the list is always the first number to be tried when the pilot number is called. Maximum number of hops is not a configurable parameter for sequential hunt groups. Peer Hunt Groups In a peer hunt group, extensions ring in a round-robin order. The first extension to ring is the number in the list to the right of the last extension to ring when the pilot number was last called. Ringing proceeds in a circular manner, left to right, for the number of hops specified when the hunt group was defined. Below figure llustrates a peer hunt group. Longest-Idle Hunt Groups

Avinash C. Pillai

Search This Blog