Linux commands. The most used

Linux is a very simple Operating system to use and the commands that you use on them span across the vast majority of Linux distros. I have...
Mirela | 3 weeks ago

ACL: Setting Access Control List for non privileged users

There are two type of ACLs Access ACL The user and group access permissions for all kinds of...
Mirela | 3 weeks ago

How to Setup a Home Network Using Static Addresses

If you have more than one computer at home, you’ll probably want to set up a network so that they can communicate. This way you’ll be...
Mirela | 1 month ago

10 ways to make Linux boot faster

Linux rarely needs to be rebooted. But when it does, it’s often slow to boot. Fortunately, there are ways to speed things up....
Mirela | 1 month ago

RAID - Redundant array of independent disks

RAID is an acronym for Redundant Array of Independent Disks. With RAID enabled on a storage system you can connect two or more drives in the system...
Mirela | 1 month ago

IPtables - Basic concepts

The IPTables program that comes with Linux distributions allows administrators to configure the operating system so that it allows...
Mirela | 1 month ago

How to record a UNIX terminal session

Start the recording of Unix terminal session with script command. And start doing your important configurations, it will recorded...
Mirela | 1 month ago

Securing Your Network by Filtering MAC Addresses

If you live in the middle of nowhere you probably wonder why you should secure the access to your network. If you’re setting...
Mirela | 1 month ago

Sever Administration - mail troubleshooting

Go through this post to troubleshoot mail issues on your server.. Check emails in mail queue ...
Mirela | 1 month ago

john (John the Ripper) — a password cracker for Linux and Windows

John the Ripper (a.k.a. JtR, or simply john) is a popular fast password cracker for both Linux and Windows . It is quite useful for...
Mirela | 1 month ago

No volume control GStreamer ... found — no sound on Ubuntu

I was introduced to Linux via RedHat distributions, such Fedora or CentOS. With Fedora you tend to learn a lot because so many things are...
Mirela | 1 month ago

Network config files in Linux

In most cases, the DNS configuration is stored within /etc/resolv.conf. To add a DNS server, you can simply add a line “namespace...
Mirela | 1 month ago

9 Server Configuration checking useful commands

Server Configuration checking commands: 1.HTTP Webserver: ...
Mirela | 1 month ago

Connection reset by peer — ssh sshfs error

Recently, after re-installation of Ubuntu Linux, sshfs mount, from a Fedora Core, has failed with the following error message, read:...
Mirela | 1 month ago

Basic commands a system admin need to know

Basic commands a system admin need to know. - tty – tty command will tells you current terminal. Mirela | 1 month ago

How To Perform HTTP-GET via Curl Commands inside PHP

PHP supports libcurl that allows you to connect and communicate to many different types of servers with many different types of...
Mirela | 1 month ago

important uses of LSOF Command for Linux admin

Important uses of LSOF Command - lsof is a Linux utility which lists the information about files opened by processes.LSOF is one of the...
Mirela | 1 month ago

lsof | grep snd — how to free a Linux sound device

A program attempting to open a sound device for exclusive access may fail, if that audio device is already in use by another program....
Mirela | 1 month ago

aspell — spelling with foreign dictionaries

Regardless of whether you are a spelling genius or a spelling disaster, like myself, it is useful to have a spellchecker handy. There are...
Mirela | 1 month ago

lprm — cancel print jobs

lprm is a useful tool for removal of active or queued print jobs. Lets start by having a look at line printer queue status using lpq utility....
Mirela | 1 month ago

./ — dealing with a leading minus in filenames under Linux shell

Dealing with files whose filenames contain special shell characters can be tricky. Unless you know how to handle their filenames...
Mirela | 1 month ago

tar — how to create and extract tar.gz and tar.bz2 archives

The commonly employed archive types on Linux and Unix systems are tar, tar.gz and tar.bz2 archives. Note that tar.gz and tar.bz2...
Mirela | 1 month ago

cups — fixing cups printer problem: lpd failed

Recently, our HP2420dn printer stopped working. Well, it was not really the printer… printing jobs went but nothing came out of the...
Mirela | 1 month ago

growisofs — burning iso files to dvd using growisofs

It is very simple to burn ISO files to DVDs using growisofs under Linux. For example, to burn file.iso to /dev/dvd DVDR(W) device...
Mirela | 2 months ago

matlab djpegxx bug — problem calling ghostscript: system error

Recently, I wrote Matlab code that does some processing, plots the results and saves the plots as compressed JPEGs. When I run it on a...
Mirela | 2 months ago