09-15-2008
lock an account
hi
how can I Lock an account, by prepending ”*LK*” to the password field in /etc/shadow.
I dont want to use passwd -l .
Any idea?
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
how can I lock my keyboard while I'm away from the computer without using lock command. What other commands gives me the option to lock keyboard device?
thanks (7 Replies)
Discussion started by: dianayun
7 Replies
2. UNIX for Dummies Questions & Answers
I have access to 15+ UNIX boxes at work, and I do not consistently log onto all of them over time. When I do try to access one I havent been on in awhile, my account is locked as the password has expired.
I need to request to the UNIX SA's that the password expiration is 90 days and that if it... (1 Reply)
Discussion started by: stringzz
1 Replies
3. Solaris
Dears,
I want to lock the user's account after consecutive unsuccessful login attempts, how can I do this ? (1 Reply)
Discussion started by: mlsun
1 Replies
4. SuSE
Hi ,
Can anyone give ur answer for
How to lock the account after consecutive unsuccessful login in SUSE Enterprise 10.2 Linux (1 Reply)
Discussion started by: karthik04
1 Replies
5. Linux
Hi ,
I am faceing lot of problem due to "disk space is not enough".
senerio is like as,
In system has 5 account.
a,b,c,d,e
say account c if very critical.
Due to other user's data, user 'c' is faceing disk space issue.
I want to dedicate 3 GB for user 'c'.
No user... (1 Reply)
Discussion started by: ashokd009
1 Replies
6. Red Hat
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. Cybersecurity
Hi all,
I am having some issues with openssh vers OpenSSH_4.6p1 on SCO unixware 7.1.4
when a user accesses the system via ssh and the password is incorrect and more attempts have been made that the lock out limit I find that although there are messages in the syslog the account does not lock... (0 Replies)
Discussion started by: chlawren
0 Replies
8. UNIX for Advanced & Expert Users
Hi all,
I have to test some user priviliges. The goal is to be sure that an unauthorized user can't restart some modules (ssh, mysql etc...).
I'm trying to automate it with a shell script but in same cases I got the syslog broadcast message.
Is there any way to simply get a return code... (3 Replies)
Discussion started by: Dedalus
3 Replies
9. How to Post in the The UNIX and Linux Forums
I have made password less connection to my remote account. and i tried to execute commands at a time. but i am unable to execute the commands.
ssh $ACCOUNT_DETAILS@$HOST_DETAILS
cd ~/JEE/*/logs/ (1 Reply)
Discussion started by: kishored005
1 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 characters alphabet a thru z, A thru
Z, 0 thru 9, . and /. Optionally it can start with a "$" character. This means the encrypted password was generated using another (not DES)
algorithm. For example if it starts with "$1$" it means the MD5-based algorithm was used.
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)