Posted on November 28th, 2007 by asvija
Attention all ubuntu users…..take a look at the below article
I’d like to take a moment of your time to discuss a recent disturbing trend and also take this as an opportunity to raise awareness of this situation through education.
Related Books
It has been seen recently that an increase in the number of dangerous commands being posted […]
Popularity: 23% [?]
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Filed under: Linux Distros, Linux News
Posted on November 27th, 2007 by Jannu
Many users forget to logout. So to force them or automatically log out the user in case of inactivity detected can be done as shown below:
BASH provides TMOUT variable. It is necessary for security reasons to have an inactive user logged out after a period of inactivity from Linux / UNIX ssh / telnet session. […]
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Filed under: Linux Tips
Posted on November 27th, 2007 by Jannu
You can find the memory used by a program (process) by looking into /proc directory or using standard command such as ps or top. However, you must calculate all memory usage by hand i.e. add Shared Memory + mapped file + total virtual memory size of the process + Resident Set Size + non-swapped physical […]
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Filed under: Linux Tips
Posted on November 27th, 2007 by Jannu
Limiting user processes is important for running a stable system. To limit user process just add user name or group or all users to /etc/security/limits.conf file and impose process limitations.
Understanding /etc/security/limits.conf file
Each line describes a limit for a user in the form:
<domain> <type> <item> <value>
Where:
<domain> […]
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Filed under: Linux Tips
Posted on November 27th, 2007 by Jannu
The “passwd” command is used to change user or group accounts password. A normal user may only change the password for his/her own account, the super user (root) may change the password for any account.
You can also use “passwd” command for locking or unlocking an account also.
Linux locking an account
Syntax:
passwd -l {username}
Lock the account. […]
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Filed under: Linux Tips
