2daygeek :- Linux & Open Source Tips

Details of /etc/passwd file format

Details of /etc/passwd file format

In linux user details are stored at “/etc/passwd” file. Whenever we create the new user in our system/server the new user and user details will be added to “/etc/passwd” file. The passwd file contain...

19 Awesome practical ps command examples

19 Awesome practical ps command examples

ps (process status) command will display information of all active processes. Here i’m going to explain all the possible examples about ps command and their usage, When you read this article you will definitely...

10 Awesome Linux command to check server Configuration and hardware information

10 Awesome Linux command to check server Configuration and hardware information

In windows based server we can easily identify/check the server configuration and hardware information because the GUI interface is very easy to check out but in linux server its little bit hard. Here i’m...

Reverse RSYNC command practical example for backup sync

Reverse RSYNC command practical example for backup sync

Normally everybody know to sync the backup from one server to another server using rsync command but most of us don’t know to use the rsync command as reversely to sync the backup from...

Awesome 18 practical ls command examples

Awesome 18 practical ls command examples

ls command is heart for linux user. ls command is very very basic and most frequently used command in Linux. I know every body first use ls command when their logged into system/server. Everybody’s...

How to Find out if package is installed in Linux

How to Find out if package is installed in Linux

To check installed packages in linux, the command is vary depend upon your distribution. Here i’m going to find installed packages on Cent OS. This will applicable to Redhat & Federo distribution. 1) rpm...

How to open websites in Linux terminal

How to open websites in Linux terminal

This is very small and handy geek, i think most of us were didn’t knew this at first including me, it may or may not be correct which i’m going to share here. Now,...

Exim mail issues “554 rejected due to spam content”

Exim mail issues “554 rejected due to spam content”

Hi Guys, I had a pleasant surprise to you all.. I’m very glad to explain you about the mail “delivery failed : 554 rejected due to spam content ” issues which i was faced...