How to Install JAVA 8 (JDK 8u45) on CentOS 6 / CentOS 7
Introduction: Java is a popular programming language used for developing web applications, desktop applications, and mobile applications. To run Java applications on your CentOS 6 or CentOS 7 system, you…
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…
How to Add Linux Swap Space on CentOS 6 VPS
Swap space is a disk space that is used as a temporary memory extension when the physical memory is full. CentOS 6 is an older version of the CentOS operating…
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…
New Naming Scheme for the Network Interface on RHEL 7/CentOS 7
Red Hat Enterprise Linux 7 (RHEL 7) and CentOS 7 have introduced a new naming scheme for network devices. This scheme aims to make network interfaces fully predictable and automatic,…
Ldapsearch Examples for 389 Directory
This post will show you the list of ldapsearch examples for 389 Directory. This ldapsearch examples assumes the following: a)This ldapsearch is search for uid in the directory. b)The 389…
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…
How to Mount CDROM Media on CentOS 5/CentOS 6/CentOS 7
Question : How to mount CDROM/DVDROM media on linux CentOS server ? Solution : In certain situations, system administrators will need to mount cdrom containing the installer or data on…
How to Track System Activity with “top” Command on Linux CentOS (5/6) and RHEL (5/6)
In server administration, it’s crucial to have a comprehensive understanding of your system’s activity. This knowledge allows you to optimize performance, troubleshoot issues, and ensure the smooth operation of your…
Why “portmap unrecognized service” on RHEL 6/CentOS 6
Question : During the deployment of Samba and NFS services on one of the RHEL 6 server, I’m hit by this message when trying to start, stop and restart service…
How to Setup Local Yum Repository from CD-ROM/DVD-ROM image on RHEL 6
In this article, I will share about how to update and install RPM packages from the image CD-ROM/DVD-ROM in Red Hat Enterprise Linux 6 (RHEL 6). This step can also…