How to Configure FTP Server in Linux RHEL 6

In this post i will show how to install Very Secure FTP (Vsftpd) and how to configure ftp server in linux Red Hat Enterprise Linux 6 (RHEL 6). Vsftpd is a GPL licensed FTP server for UNIX systems, including Linux. It is secure and extremely fast and it is stable. As an example I will install […]

How to a Add and Remove User Account on RHEL 6/7, CentOS 6/7, Oracle Linux 6/7

This article will explain and share how to add and remove user account with useradd(add) and userdel (remove) from the command-line on linux RHEL 6/7, CentOS 6/7, Oracle Linux 6/7 server. 1. Adding a New User to an Linux System. a) Get the useradd manual : # man useradd useradd – create a new user or […]

How to Grant a New User to Root Privileges on CentOS 6 / CentOS 7

One recommended way to manage virtual private server (VPS) or a dedicated linux server is not using the root account as the main access for SSH login. This is because usually the hackers will try to brute force your root password and potentially get access to your server. Instead of using the default root account, […]

How to Remove/Uninstall Nginx Installed from Source on CentOS 6/RHEL 6

On this day, Nginx web server is reported to be a most popular and fastest in the internet if installed properly. But it should always be updated from time to time in order to maintain stability and high security so that is not exposed to hackers. For system administrators and web masters, it is routine […]

How to Add Network Adapter Without Reboot on CentOS 6/RHEL 6

This article will explain how to prepare more than one network interface on a VMware virtual machine (VM) without reboot the linux server. Normally, a network interface is sufficient to run a linux server. To ensure a balance of traffic or to enable multiple network segments in a VM, it is advisable to install more […]

How to Install VMware Tools on Red Hat Enterprise Linux 6.2 (RHEL 6.2)

This post will shows how to install VMware Tools on Red Hat Enterprise Linux 6.2 (RHEL 6.2). VMware Tools is a group of utilities that enhances the overall performance of the virtual machine’s guest operating system (OS) and improves management of the virtual machine (VM). This is one of important components in order to provide […]

How to Secure OpenSSH (SSHD) on Linux

OpenSSH is a open source alternative to the proprietary Secure Shell software. It is also the SSH connectivity tools that allows you to remotely login, transfer remote file via scp or sftp. It was created as an open source alternative to the proprietary Secure Shell software. OpenSSH options are controlled through the /etc/ssh/sshd_config file. In […]

How to Check Disk Read Write Speed in Linux

Measuring sequential disk performance is easy in linux as every modern Linux distribution comes with a command line utility called hdparm. Hdparm is a free tool to measure sequential disk performance which is primarily used to tune and optimize disk parameters. It is important to read hdparm man page and perform full backup before using […]

4 Top Command Howto on Linux RHEL 6/CentOS 6

In this article, i will help you to explore most frequently used top commands that linux system administrator use when analyzing the linux performance and use for daily system administrative jobs. Top command displays system summary information such as tasks currently being managed by the Linux kernel, displays ongoing look at processor activity in real […]

How to Add Webtatic Repository on CentOS 6.3

This post covers the steps on how to setup additional yum repository using Webtatic. Webtatic yum repository is a repository containing updated web-related packages for CentOS and Redhat Enterprise Linux (RHEL). Webtatic goals are to provide CentOS/RHEL administrators with the latest stable minor releases of web development/hosting software, which are not provided in CentOS/RHEL distribution […]

How to Change Date and Time Linux on RHEL 6/7 and CentOS 6/7

This post assumed that your Red Hat Enterprise Linux 6 (RHEL 6) does not have Date/Time Properties installed. In order to change the date and In order to change date and time you will have to perform the changes from the command line. Note that in order to perform actions described in this post, you […]

How to Change Timezone Linux on RHEL 6/7 and CentOS 6/7

This post assumed that we will change the System Timezone from the command line without using redhat-config-date. There are several files and directories that are used for time zones. In RHEL 6 and RHEL 6, there is one directory that very useful to select the appropriate time zone which is /usr/share/zoneinfo directory. Sometimes we forget […]

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