October 2010

9 Linux ethtool Examples to Manipulate Ethernet Card (NIC Card)

by Balakrishnan Mariyappan on October 28, 2010

Ethtool utility is used to view and change the ethernet device parameters.

1. List Ethernet Device Properties

When you execute ethtool command with a device name, it displays the following information about the ethernet device.
(more…)

{ 8 comments }

5 Best Point and Shoot Digital Cameras

by Ramesh Natarajan on October 27, 2010

These are the best selling point and shoot digital cameras. If you are getting ready to buy a gift for your family members for the holiday season, you might want to consider these easy to use point and shoot digital cameras. All these are 10 mega pixels or above with image stabilization.

Did we miss your favorite point and shoot digital camera in this list? Please leave a comment and let us know.
(more…)

{ 11 comments }

Troubleshooting Using dmesg Command in Unix and Linux

by Balakrishnan Mariyappan on October 26, 2010

During system bootup process, kernel gets loaded into the memory and it controls the entire system.

When the system boots up, it prints number of messages on the screen that displays information about the hardware devices that the kernel detects during boot process.

These messages are available in kernel ring buffer and whenever the new message comes the old message gets overwritten. You could see all those messages after the system bootup using the dmesg command.

(more…)

{ 4 comments }

bzip2 command is used for compression and decompression of files. The main advantage of bzip2 is the best compression size. bzip2 vs gzip: bzip2 will compress better than gzip. Speed of bzip2 is somewhat slower than gzip and zip. bzip2 provides high rate of compression with reasonable speed.

There are several Linux bz commands available to manipulate the bzip2 files. This article explains various bz commands with 6 practical examples.
(more…)

{ 4 comments }

Installing software packages on HPUX can be little painful when it has lot of dependencies. depothelper utility will help you to download and install the software packages and all it’s dependencies automatically.
(more…)

{ 0 comments }

If your server has two HBA cards connected to EMC SAN storage device, you can implement load-balancing, and fail-over on the HBA cards using the EMC PowerPath software.

Powermt management utility helps you manage I/O paths from the server to the EMC storage device. In this article, let us discuss how to use powermt command with practical examples.

(more…)

{ 9 comments }

Programmers should handle all kinds of errors to protect the program from failure.

In C programming language, there is no direct support for error handling. You have to detect the failure and handle the error. In C programming language, return values represents success or failure. Inside a C program, when a function fails, you should handle the errors accordingly, or at least record the errors in a log file.

When you are running some program on Linux environment, you might notice that it gives some error number. For example, “Error no is : 17″, which doesn’t really say much. You really need to know what error number 17 means.

This article shows all available error numbers along with it descriptions. This article might be a handy reference for you, when you encounter an error number and you would like to know what it means.

(more…)

{ 4 comments }

Linux Beginners Guide to NFS Mount Using Exportfs

by SathiyaMoorthy on October 13, 2010

Using NFS (Network File System), you can mount a disk partition of a remote machine as if it is a local disk. This article explains how to export a file system to a remote machine and mount it both temporarily and permanently.

(more…)

{ 3 comments }