Sometimes we need to move a collection of files form one server to another server. It is because maybe we are updating our server space or changing storage provider for media files for our server. If we have SSH access to the server , we can use a cli tool […]

How to copy multiple files over SSH

Recently i had to use a video manipulation software in docker container. But the problem i faced is, the video files i had to enter into the software are too large. The smallest one of them is like 12 GB. This was a local system, converting some local file was […]

How to mount a local directory in docker container

PHP is one of the must have application for any modern web server. Despite being one of the most popular web server OS, CentOS’s official repository  at the moment comes with php version 5.4. Version 5.4 is pretty old version. Many modern web application needs the enhanced capability of newer […]

Install PHP 7/7.1 in CentOS from third party repository

freeipa dogtag
FreeIPA is a open source security information management solution. It combines Linux (Red hat family) with several services like 389 Directory Server, MIT Kerberos, NTP, DNS, Dogtag (Certificate System), sssd and some others. It is a popular alternative of Microsoft’s Active directory tool. It integrates Identity and Authentication solution for Linux/UNIX […]

How to install FreeIPA to create Identity Management system.

This is the second part of Iscsi Setup. First Part can be found here Since our iSCSI target is ready, we will now head to configure iSCSI target. This is also a CentOS 7.3 machine, but the process works almost similar in other Linux distribution. Client configuration: Before doing the […]

Setup iSCSI storage on CentOS systems (Part Two)

What is iSCSI ? iSCSI (internet Small Computer System Interface) is a very popular and reliable SAN(Storage Area Network) solution. It works over TCP, so iSCSI command can be sent over LAN , WAN or internet. In this tutorial, We have a server machine with CentOS 7.3 installed in it. […]

Setup iSCSI storage on CentOS systems (Part One)

The problem: Recently I found myself with a bit of ssl problem in a web server managed through ISPConfig. The server is using free ssl certificate from Let’s Encrypt. Although all the sites in the server was loading fine via https with Lets Encrypt without any ssl warning , the […]

Enable Let’s Encrypt SSL for ISPConfig control panel

Network teaming in RHEL/Centos allows aggregation of multiple network card into one virtual interface in order to offer better performance. There are several ways of configuring the teaming based on the desired performance criteria. Some of the benefits of nic teaming includes higher network throughput, better failover support and also […]

Network Teaming: smart NIC management in RHEL/Centos

If we forget the password for our root account, we will be locked out of our server . In a situation like this, to gain access to the server we need reset the root password for our root account.   This tutorial is to show how to reset root password […]

How to reset root password on CentOS/Rhel 7

Submarine cable
We all heard the tales of aladdin mat. It will take you wherever you want go. The gigantic submarine cables running under seas are our real world aladdin mat. These cables connect the whole world so our data connection can run through it. Almost 99% of world’s data runs through […]

Submarine Cable: The road of internet