How to Change RunLevel on CentOS 7 / RHEL 7
Old method to change the runlevel via /etc/inittab in Redhat Enterprise Linux version and CentOS server has become obsolete on RHEL 7 and CentOS 7. This latest Linux operating system…
How to Fix GNOME License Not Accepted Issue on CentOS 7
This post assume that you have just finished the Gnome GUI installation on CentOS 7 by using “yum groupinstall “GNOME Desktop” “Graphical Administration Tools” -y” command. Previously you are running…
How to Setup Multiple WordPress Sites on Nginx
This article describes how to install and configure multiple WordPress sites on Nginx and the steps have been prepared based on CentOS 7.0 and Nginx 1.6.3. NGINX (pronounced Engine ex) is…
How To Get Email Alerts for SSH Login on Linux Server
Enabling an SSH server on a virtual private server (VPS) will expose the server to the Internet and provide opportunities for hacking activities, especially when VPS still using root as…
How to Use Fail2ban to Stop/Prevent SSH Brute Force on Linux
Brute-force break-in attempts are quite frequent against the SSH server. However, there is an open source software that can help you deal with this problem automatically, namely fail2ban. Fail2ban provides…
4 lvcreate Command Examples on Linux
Logical volume management (LVM) is a widely-used technique and extremely flexible disk management scheme. It basically contain three basic commands: a. Creates the physical volumes using pvcreate b. Create the…
What are the Differences Between the Open-VM-Tools package and VMware Tools package
Question. Many of the system administrator asked whether they need to install Open-VM-Tools package or VMware Tools package that ships with ESX/ESXi VMware products. Answer. VMware Tools is a suite…
How to Configure Static IP Address on RHEL 7.0/CentOS 7.0/Oracle Linux 7
This article will describe the procedure to configure static Ip address on RHEL 7/CentOS 7/Oracle Linux 7 minimal installation. Network interface configuration files control the software interfaces for individual network…
How to Install ifconfig and netstat on RHEL 7.0/CentOS 7.0/Oracle Linux 7
Question : I have just setup on RHEL 7.0/CentOS 7.0/Oracle Linux 7 minimal server installation but i notice ifconfig and netstat command not found. How to make those command available…
How to Check Opened Port on Linux VPS Server
By default, the linux operating system manages 65536 ports. If you run Virtual private Server (VPS) on linux platform, it is better to turn off any services or ports that…