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Fedora+Core

Set Up A Fedora 7 Mail Server Using Qmail Toaster

Post date: June 20, 2007, 23:06 Category: Installing Views: 8162 Comments
Tutorial quote: This document describes how to install a Fedora 7 mail server based on Qmail using Qmail Toaster. Qmail is an Internet Mail Transfer Agent (MTA) for UNIX-like operating systems. It is a drop-in replacement for the Sendmail system provided with UNIX operating systems. Qmail uses the Simple Mail Transfer Protocol (SMTP) to exchange messages with MTAs on other systems.
Linux

Breaking the SHELL

Post date: May 29, 2005, 01:05 Category: Programming Views: 3267 Comments
Tutorial quote: Shell scripts are a part and parcel of almost all software applications running on UNIX, and the use simply spans from a trivial script, managing automatic database backup to bunch of scripts collaboratively doing complex operation on regular expressions.

Though it's a mere design decision to partition modules between scripts and programming language, but I personally feel that they sometimes come very handy saving lot of time and lines of code, when compared to implementing the same functionality in the programming language in context.And in fact with some exceptions, complexity of a shell script can scale to that of codes in C language. Add to this the power of all those numerous UNIX commands, and just think through, what can be achieved by shell scripts.
Here I will discuss few topics mainly relevant to intermediate shell programmers
Unix+clones

Execute Commands on Multiple Linux or UNIX Servers part II

Post date: December 28, 2005, 10:12 Category: System Views: 3365 Comments
Tutorial quote: I have already covered how to execute commands on multiple Linux or UNIX servers via shell script. The disadvantage of script is commands do not run in parallel on all servers. However, several tools exist to automate this procedure in parallel. With the help of tool called tentakel, you run distributed command execution. It is a program for executing the same command on many hosts in parallel using ssh (it supports other methods too). Main advantage is you can create several sets of servers according requirements. For example webserver group, mail server group, home servers group etc. The command is executed in parallel on all servers in this group (time saving). By default, every result is printed to stdout (screen). The output format can be defined for each group.
Unix+clones

Arcane Linux Commands: dc

Post date: September 26, 2007, 09:09 Category: Software Views: 3378 Comments
Tutorial quote: A beginner-friendly guide to dc, the Unix command-line calculator. Answers many questions that the man page doesn't.
Unix+clones

UNIX Shell Programming QuickStart

Post date: April 13, 2005, 02:04 Category: Programming Views: 3331 Comments
Tutorial quote: If you read, write, or maintain programs, the following samples will give you a quick overview of the construction and style of a shell script and introduce you to some of the constructs and syntax found in these programs.
Unix+clones

Tune and Tweak NFS for Top Performance

Post date: June 26, 2005, 00:06 Category: Optimizing Views: 3421 Comments
Tutorial quote: As promised in our previous NFS article, we will now explore mount options in a bit more detail. We will also talk about differences between NFS implementations among various UNIX flavors, and the wonderful capability automatic mounting provides.
Linux

Monitoring disk space and usage

Post date: June 17, 2006, 15:06 Category: Software Views: 4524 Comments
Tutorial quote: Monitoring disk space is a vital part of your job as a UNIX administrator. This article gives you the tools you need to be successful, including the use of df, du, find, and even the use of quotas. Let's get started by taking a look at how useful df can be.
Linux

Use Webmin for Linux Administration

Post date: April 13, 2005, 00:04 Category: Software Views: 3373 Comments
Tutorial quote: Administering Linux and Unix-based servers does not need to be the scourge of your work day. With a handy tool called Webmin as part of your arsenal, you can regain complete control of your servers via the Web browser.
Debian

Monitoring Proftpd Server Using phpftpwho

Post date: August 5, 2007, 02:08 Category: Software Views: 2979 Comments
Tutorial quote: phpftpwho is a program written in PHP that tells you the status of your local FTP server. It uses the unix/linux
command ftpwho and formats and displays the information. The program is licensed under the GPL license.
Linux

Basic Linux Commands With Man Pages

Post date: October 11, 2006, 16:10 Category: Installing Views: 3005 Comments
Tutorial quote: Here are some basic commands to get you started in the wonderful world of Linux and other UNIX variants. All of these commands should work from your command prompt (regardless which shell you’re using).
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