http://wiki.github.com/dcantrell/ldap-for-dhcp
http://www.grotan.com/ldap/dhcp-ldap-readme
Tuesday, September 22, 2009
Wednesday, September 16, 2009
Friday, September 4, 2009
How to unregister/register System from RedHat Satellite Server
http://kbase.redhat.com/faq/docs/DOC-8037
Monday, August 3, 2009
Thursday, July 16, 2009
Problems && Solutions
- Problem: ssh login to one of the server was taking a long time (almost minutes).
- Solution: The problem was solved by adding following lines at /etc/ssh/sshd_config:
Friday, June 12, 2009
Monday, June 8, 2009
View actual physical memory usage on Linux
free
free command displays amount of total, free and used physical memory (RAM) in the system, as well as shoing information on shared memory, buffers, cached memory and swap space used by the Linux kernel.
Syntax of free
free -[options]
Example usage of free
free -m
The command will display information about physical memory in MB.
free -m -s 5
The command will activate continuous polling delay at 5 seconds apart, and then display memory status in megabytes on terminal. Any floating point number for delay can be specified.
free -t -m
Same with “free -m”, but -t switch will display a line containing the totals of physical memory and swap space.
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