What is container management and why to use it? A container management platform is a solution used to o create cloud-native, distributed applications and package legacy applications that were not originally designed for virtual environments. Container management software simplifies the process of adding or replacing containers when the need arises Read more…
What is MySQL cluster and how to use it? MySQL Galera Cluster is a synchronous multi-master cluster, available on Linux only, and only supports the XtraDB/InnoDB storage engines . It is designed to provide high availability and high throughput with low latency, while allowing for near linear scalability. MySQL Cluster Read more…
What are Docker containers and how to use them? Docker is a software technology providing containers. Docker provides an additional layer of abstraction and automation of operating-system-level virtualization on Windows and Linux. Docker uses the resource isolation features of the Linux kernel such as cgroups and kernel namespaces, and a Read more…
Clearing PageCache, dentries and inodes in Linux Like any other operating system, GNU/Linux has implemented a memory management efficiently and even more than that. But if any process is eating away your memory and you want to clear it, Linux provides a way to flush or clear ram cache. Use Read more…
What is MySQL cluster and how to use it? MariaDB Galera Cluster is a synchronous multi-master cluster for MariaDB, available on Linux only, and only supports the XtraDB/InnoDB storage engines . It is designed to provide high availability and high throughput with low latency, while allowing for near linear scalability. Read more…
What is HAProxy and how to use it? HAProxy is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications. It is particularly suited for very high traffic web sites and powers quite a number of the world’s most visited ones. Read more…
Integrating Centos 7 with Windows Active Directory When a user logs in to a Linux system, the username and password combination must be verified, or authenticated, as a valid and active user. Sometimes the information to verify the user is located on the local system, and other times the system Read more…
What is HAProxy Server and how to use it? HAProxy is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications. It is particularly suited for very high traffic web sites and powers quite a number of the world’s most visited Read more…
Using the linux commands below you can find files on a system with limited free space. In the below example you will find “/dev/mapper/VolGroup00-LogVol00” has 4% available space. [root@centos ~]$ df -h Filesystem Size Used Avail Read more…
Below is a quick tutorial on how to setup a new CentOS server with basic settings quickly. I will also show you how to lock down SSH to secure the system. However, this is by no means a complete list of instructions for securing the CentOS operating system. We will Read more…