How to Reset the Directory Manager Password on RHEL 7 / CentOS 7

Reset the Directory Manager Password

It is best practice to remember passwords, but because too many passwords, sometimes we forget.

We are not encouraged to write the password on any paper or share the password via email. This can lead to more serious security issues. Continue reading “How to Reset the Directory Manager Password on RHEL 7 / CentOS 7”

How to Find Big Files Size on Linux RHEL/CentOS

Find Big Files Size

As the linux administrator, sometimes we have to identify which files are most take much space in the linux server resulting in low free space.

Low disk space can also affect server performance and sometimes cause critical processes such as backup job to fail. Continue reading “How to Find Big Files Size on Linux RHEL/CentOS”

Why Linux users should worry about malware and what they can do about it

Don’t drop your guard just because you’re running Linux.

Preventing the spread of malware and/or dealing with the consequences of infection are a fact of life when using computers. If you’ve migrated to Linux or Mac seeking refuge from the never-ending stream of threats that seems to target Windows, you can breath a lungful of fresh air—just don’t let your guard down. Continue reading “Why Linux users should worry about malware and what they can do about it”

How to Reset Forgotten Root Password on Linux RHEL 7/CentOS 7

Reset Forgotten Root Password

This article will explain the steps to reset a lost root password or to reset forgotten root password on Linux RHEL 7 or CentOS 7.

Basically, the steps will adding a “rd.break” to the end of the line with kernel parameters in Grub to stops the start up process before the regular root filesystem is mounted, hence the necessity to chroot into sysroot. Continue reading “How to Reset Forgotten Root Password on Linux RHEL 7/CentOS 7”

How to Update CentOS or Upgrade CentOS to the Latest Version

update centos

Recently, the latest version of CentOS 7.3 was released. All users of CentOS 7.0, 7.1 and 7.2 can upgrade their system to the most recent.

This quick guide will explain the steps you need to update CentOS or upgrade CentOS to the latest version. Continue reading “How to Update CentOS or Upgrade CentOS to the Latest Version”

How to Change your WordPress Username, Nickname and Display Name in MySQL

Change your WordPress UsernameAfter you create an account log in WordPress, you may want to change your WordPress username, as appropriate or due to security reason. However, you can not do this from the WordPress administration console. Continue reading “How to Change your WordPress Username, Nickname and Display Name in MySQL”

How to Change UUID of Linux Partition on CentOS 7

Change UUIDUUID (Universally Unique IDentifier) should be unique and it is used to identify storage devices on a linux system.

If you cloned a virtual machine from vCenter, the metadata containing information of UUID for the filesystem will be identical for the original and cloned copy, therefore the UUID is no longer unique in /etc/fstab.

The following steps will show how to change UUID of linux partition on CentOS 7. Continue reading “How to Change UUID of Linux Partition on CentOS 7”

How to Shut Down or Reboot Solaris Server

Shut Down or Reboot Solaris ServerThis article will describes how to shut down or reboot solaris Server.

Solaris is usually used as a server operating system which can be accessed at any time by the user.

Solaris is designed to run continuously so that the server can function correctly and service offered always be accessible. Continue reading “How to Shut Down or Reboot Solaris Server”

How to Setup WordPress Nginx with FastCGI Caching in CentOS 7

Wordpress NginxIf you plan to run high traffic wordpress blog(wordpress nginx), i would suggest to run it in virtual private server (VPS) or dedicated server together with NGINX FastCGI Caching.

Besides the low memory consumption when using Nginx as a web server, it has a fast performance. When you combine Nginx and FastCGI Caching module, you will further enhance the performance of your web application, including a WordPress site.

This can be an alternative to NGINX + Varnish setup that uses caching technology to accelerate the performance of wordpress site. Continue reading “How to Setup WordPress Nginx with FastCGI Caching in CentOS 7”

An open letter to entry-level IT employees

IT employees

The world of IT can be unforgiving, especially for those just starting out. The keys to finding and maintaining success are humility, patience and an open mind.

You’ve graduated and prepped, perhaps you’ve even collected some certifications, and you’re now ready to take that first step into the corporate IT world as an entry-level IT employee. These first steps can be a challenging, but not just from a technical standpoint. Continue reading “An open letter to entry-level IT employees”

How to Install and Setup Apache Web Server in Linux

1. Introduction of Web Server (Apache Web Server)

A web server generally hosts the web content, and responds to requests for this content from web browsers such as Internet explorer, Google chrome and Firefox. The example of web server are apache web server, IIS web server, Nginx webserver and litespeed web server. Continue reading “How to Install and Setup Apache Web Server in Linux”