Minimum Hardware Requirement for RHEL 7

Minimum hardware requirement would be discussed in this article. Before you prepare a server system for exam practice, it is good idea to have a look on minimum hardware requirement for rhel7. This minimum requirement is outlined only for RHCE exam prospective. 64 Bit system [Read More]

History of Linux

In 1969, Four programmer Ken Thompson, Dennis Ritchie, Rudd Canady & Doug McElroy made a program in Bell labs which does not have any name in year 1969. Brian Kernighan checked that program & found it is very good software for client & networking purpose. [Read More]

Red Hat Cluster Notes

1) Cluster types: – High Availability / Failover cluster (Ideal for Database, file servers) – Load Balancing  (Ideal for high load web traffic) – High Performance (Large computational problems) 2) Clustering can be implemented in two ways . – Active – Active ( Both nodes [Read More]

Why do hackers prefer Linux?

  Also in today’s open source roundup: The best Linux desktop for customization, and how Star Trek inspired people with technology Why do hackers prefer Linux? Linux has much to offer any computer user, but it has proven to be particularly popular with hackers. A [Read More]

How to use vmstat command in linux

vmstat (virtual memory statistic) which is generally used for system monitoring purpose [root@puppetmaster ~]# vmstat procs ———–memory———- —swap– —–io—- –system– —–cpu—– r b swpd free buff cache si so bi bo in cs us sy id wa st 0 0 0 265492 29852 355740 0 [Read More]