Username is not in the sudoeur name? I have received an email, asking how to use ‘sudo’ command, so i decide to write this post for all of you. The user was reporting the error while he was trying to execute some root commands with ‘sudo’.
Basics of Linux Users As a Linux System Administrator you must have good skills of management of users and groups. This means having practice how to configure and modify accounts, setting up passwords and organize user in groups.
With a static ip address you can access your computer over the internet from anywhere in the world using noip.com. No-IP Dynamic DNS Client keeps your dynamic ip information up to date in order to make your connection active. Following tutorial is about installation of no-ip dns update client on centos 6.3 Before going to…
FileZila is a cross-platform graphical FTP, FTPS and SFTP client with many of features, supporting Windows, Linux, Mac OS X and more. FileZilla Server is a reliable FTP server for Windows. Step-1 Before installing FileZilla using ‘yum’ command you need to install epel-release-6-8.noarh.rpm
Webmin is a web-based interface for system administration in Unix/Linux. Webmin provides web-based management for Unix system. Using web-interface, you can configure user accounts, Apache, DNS, file sharing etc. Unix is hard to configure for newbies Webmin allows newbies to configure Unix system using web-based interface which is available on any modern web browsers. Let’s…
What is VNC ? VNC ( Virtual Network Computer ) for remote access, in order to get graphical environment of remote pc such as you are sitting in front of that pc, you can use vnc. VNC uses ( 5900-590x ) port numbers. Tigervnc is available in CentOs 6.3 for graphical remote sessions. How to…
Debian is a free operating system (OS) for your computer. An operating system is the set of basic programs and utilities that make your computer run. This Tutorial is just a simple graphical Installation of Debian 6.0.6 “Squeeze” (stable released on 29-Sep-2012 19:09).
Autofs Service is used for mounting network shares on a Linux machine it is Specially designed for saving your system and network resources. The benefit of using autofs service is that the shares unmounted after a specific time and when user need to access the resources it automatically mount that shares again. By default an…
RedHat OS uses swap as a type of “Virtual Memory “in case your physical memory begins to run low. This capacity can be helpful for the system that don’t have enough physical memory ( RAM ). You can define swap on your existing file system wherever you got free space instead of arranging a separate…
In this guide we will learn how to Mount Windows Shares on Linux using autofs. CentOS 6.3 machine and a windows 7 machine will be used to perform this task. A share folder is available on windows 7 machine named win-share. We will mount this share folder using autofs on CentOS. Let’s get started. Windows…
LUKS or a Linux Unified Key Setups is a partition encrypted system. encrypted file system are extremely useful and ensure that your data is stored on partition and on your removable drives is safe when its lost or stolen. Setting up encrypted filesystem on RHEL6 system is a part of RHCSA exam and you may…
Don’t be worried we have solution to get into the system “Yes†you can still login with root user if you forget your root user password. See below You need to perform the following steps to reset the root user password Reboot your Linux Machine and boot into single-user mode by appending the word “single 
