Category: Tips

Useful tips about Linux.

Amazon SES Postfix configuration

Amazon SES Postfix configuration

Amazon Simple Email Service also known Amazon SES evolved from the email platform that Amazon.com created to communicate with its own customers. Amazon SES eliminates the complexity and expense of building an in-house email solution....

Get MySQL Database Size from Terminal

Get MySQL Database Size from Terminal

Let’s suppose you wake up one day and you need to get MySQL database size from terminal, well keep calm and Just do the follow. List all the databases with their respective sizes SELECT table_schema...

Linux Security Tips

Linux Security Tips

Today i’m going to show you some Linux security tips, so you can sleep well tonight. Developing a security policy Create a generic policy that applies on all your system, and your users can readily...

Vim Navigation Keys

Vim Navigation Keys

Navigation is a vital part of text editing. To be very productive, you should be aware of all possible navigation shortcuts in your editor. In this article, let us review the following 8 Vi...

Linux Monitoring Tools

Linux Monitoring Tools

Looking for Linux Monitoring Tools what about these built-in commands. These tools provide metrics which can be used to get information about system activities. You can use these tools to find the possible causes of...

Some Linux Iptables Examples

Some Linux Iptables Examples

Iptables is an application program that allows a system administrator to configure the tables provided by the Linux kernel firewall and the chains and rules it stores. Today we are going to review some...

Hard Disk Troubleshooting

Hard Disk Troubleshooting

Can’t write to the hard disk on a Linux or Unix-like systems? Want to diagnose corrupt disk issues on a server? Want to find out why you are getting “disk full” messages on screen?...

Visualize Files Content – Cat, Tail, Head

Visualize Files Content – Cat, Tail, Head

Cat, Tail, Head Commands are so useful when you are working with files. Head Command The head command reads the first ten lines of a any given file name. head [options] [file(s)] Options -c,...