Archive for the 'Debian Linux' Category
- fold: Wrap Text File / Line / Words To Fit in Specified Width
fold is really nifty command line utility to make a text file word wrap. This is useful for large number of text files processing. There is no need to write a perl / python code or use a word processor.
- Web Site Home Page Uptime Comparison: Linux Distro vs Apple vs Windows
Pingdom a Web site monitoring service has published an interesting post on its blog. They have monitored uptime and load time of the homepages for 16 Linux distributions for a month. Further they have compared uptime with corporate OS giants like Microsoft and Apple. They have found that even with limited resources many of Linux distro website perform well than Microsoft and Apple in terms of uptime and load time.
- Linux: Should You Use Twice the Amount of Ram as Swap Space?
Linux and other Unix-like operating systems use the term “swap” to describe both the act of moving memory pages between RAM and disk, and the region of a disk the pages are stored on. It is common to use a whole partition of a hard disk for swapping. However, with the 2.6 Linux kernel, swap files are just as fast as swap partitions. Now, many admins (both Windows and Linux/UNIX) follow an old rule of thumb that your swap partition should be twice the size of your main system RAM. Let us say I’ve 32GB RAM, should I set swap space to 64 GB? Is 64 GB of swap space really required? How big should your Linux / UNIX swap space be?
- Linux / UNIX: Find Out If a Directory Exists or Not
I’ve already written a small tutorial about finding out if a file exists or not under Linux / UNIX bash shell. However, couple of our regular readers like to know more about a directory checking using if and test shell command.
- Linux tgtadm: Setup iSCSI Target ( SAN )
Linux target framework (tgt) aims to simplify various SCSI target driver (iSCSI, Fibre Channel, SRP, etc) creation and maintenance. The key goals are the clean integration into the scsi-mid layer and implementing a great portion of tgt in user space.
The developer of IET is also helping to develop Linux SCSI target framework (stgt) which looks like it might lead to an iSCSI target implementation with an upstream kernel component. iSCSI Target can be useful:
a] To setup stateless server / client (used in diskless setups).
b] Share disks and tape drives with remote client over LAN, Wan or the Internet.
c] Setup SAN - Storage array.
d] To setup loadbalanced webcluser using cluster aware Linux file system etc.In this tutorial you will learn how to have a fully functional Linux iSCSI SAN using tgt framework.
- Top 10 Best Cheat Sheets and Tutorials for Linux / UNIX Commands
Cheat sheet act as a reference tool which provides cut and paste kind of commands to complete a specific task. I often recommend following set of best cheat sheets to students and IT professionals. It include Linux / UNIX command and shell scripting.
- pssh: Run Command On Multiple SSH Servers
I’ve already written about tentakel tool and shell script hack to run a single command on multiple Linux / UNIX / BSD server. This is useful to save time and run UNIX commands on multiple machines. Linux.com has published an article about a new tool called pssh:
If you want to increase your productivity with SSH, you can try a tool that lets you run commands on more than one remote machine at the same time. Parallel ssh, Cluster SSH, and ClusterIt let you specify commands in a single terminal window and send them to a collection of remote machines where they can be executed.
- Debian Upgrade: GNU/Linux 4.0 Update 5 Available
The industry strength community driven enterprise grade Debian GNU/Linux version 4.0 stable update 5 has been released and available for immediate downloaded as well as updates via apt-get package manager. This update mainly adds corrections for security problems to the stable release, along with a few adjustment to serious problems. All users are advised to upgrade system.
- Book: Ubuntu Kung Fu Tips, Tricks, Hints, and Hacks
In a few short years, the Linux operating system has gone from a hobbyist’s power tool to a highly usable, mainstream choice. The most popular version of Linux these days is called Ubuntu. Ubuntu’s rise to power has been rapid, historic and well-deserved. It’s the best Linux distribution ever, still most people only use a fraction of its power.
- Install Flash 10 Under Ubuntu Linux 64 bit Edition
I’ve already written about installing Flash player 10 under 32 bit version. But, couple of our readers asked about installing Flash player 10 final version under Ubuntu Linux 64 bit edition. This small post will cover flash 10 Ubuntu Linux 64 bit installation.
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