How to Avoid MariaDB Galera Cluster stalls on ALTER
If you have trouble when upgrading table schema or alter table on MariaDB Galera Cluster, that make your database not response and then connection will over limit. We have experienced…
How to install latest official Nginx on Centos 8 / RHEL 8
How to install latest official Nginx on Centos 8 / RHEL 8, instead using Nginx from Centos 8 or RHEL 8 repository. Currently Centos / RHEL 8 repo using too…
Install Development Tools on CentOS 8 or RHEL 8
On this article, we will tell about how to install Development Tools on CentOS 8 or RHEL 8. As we know, for package manager, CentOS 8 / RHEL 8 does…
Install and enable Remi repository on CentOS 8
CentOS 8 has been released, it based on Red Hat Enterprise Linux (RHEL) 8 and this article explain how to install and enable Remi Repository on CentOS 8 / RHEL-8.…
How to check disk health using Smartmontools on Linux
Smartmontools is open source tools to check your disk health. It can be used to check hard disk, SAS disk, SSD and also check disk on raid conroller such as…
How to install and configure Nginx ModSecurity on Centos 7
ModSecurity is an open source and great module to securing sites around the world. ModSecurity protects against Layer 7 attacks. It will prevent SQL injection (SQLi), local file inclusion (LFI), and…
How to mitigate TCP SYN Flood attack and resolve it on Linux
TCP SYN flood is a one type of DDoS (Distributed Denial of Service) attack that exploits part of the normal TCP three-way handshake to consume resources on the targeted server…
How to mount Windows shares or Samba on Linux Centos and Ubuntu
If we need to work together with team or access windows storage, we need to mount remote windows share or Samba on CentOS 7. Mounting Windows or other samba) shares…
How to install Polipo on Centos 7
Polipo is a small and fast caching web proxy, and in this article we will talk about how to install Polipo on Centos 7. You also can use as a…
Install MariaDB on CentOS 7 or RHEL 7
By default Centos 7 repository is MySQL 5.5. If you want to use latest stable MariaDB, you need to use Official MariaDB repository. You need to create MariaDB repository on…
How to MySQL update join with other table
Sometimes we need to update a MYSQL table data based on other table data. For example order_table field city is NULL, and users_data have a field city, we need to…
How to redirect traffic through proxy using Proxychains
Many people work or study with the internet using a proxy server or behind firewall. There are many reasons for the use of proxy servers by schools or their offices,…