How to secure a mail server using encryption

SSL (Secure Sockets Layer) and its descendant TLS (Transport Layer Security) are the most widely used protocols for encrypting data that is exchanged between a server and a client. These protocols often use X.509 certificates and asymmetric cryptography.

STARTTTLS is another method of securing plain...

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How to configure a mail server with Postfix and Dovecot for different requirements

Mail server admins may often have to deal with different types of requirements based on service policies or customer-specific requests. This tutorial will cover common cases of mail server administration...

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How to Manage File and Folder Permissions in Linux

For many users of Linux, getting used to file permissions and ownership can be a bit of a challenge. It is commonly assumed, to get into this level of usage, the command line is a must. Although there is always far more power and flexibility to be had, running seemingly complicated command isn’t alw...

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How to speed up Nginx web server with PageSpeed

It is no secret that faster loading web sites lead to higher visitor engagement, retention and conversion rates. Every 100 msec of latency costs Amazon 1% drop in its sales, while 500 msec extra delay means 20% less traffic and revenue for Google...

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Linux Command Line Performance Monitoring Tools Part 1

It is very difficult job for a System or Network Engineer to keep an eye on the performance of Linux system on daily basis. I have more than 13 years of experience in Linux System Administration, and I am pretty much aware that it is very hard to monitor and keep systems up and running – but thanks ...

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Cheers! Wine Stable Version 1.6.2 Released – How To Install and Configure Wine On Debian, Ubuntu and Linux Mint?


What Is Wine?

Wine is a free, open source and easy-to-use program for Linux; this program allows Linux users to run Windows based applications on Unix-Like operating systems. Wine is a compatible layer for installing almost all versions of windows programs.

How To Install Wine 1.6.2?

The installatio...

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Linux Server Security Hardening Tips


Everybody says that Linux is protected by default and agreed to some extend (It’s debatable topics). Linux has in-built protection version in place by default. Should tune it up and customize as per your demand which could aid to make more safe device...

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Checklist of Server Maintenance


Similar to other computer, Linux servers require periodic maintenance. Below are some things to examine on regular basis to keep your system running efficiently; this is merely a quick check checklist...

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