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Enable linux root access on Microsoft Azure Cloud

Enable linux root access on Microsoft Azure Cloud

How to enable linux root access on Microsoft Azure Cloud 1. Login via ssh using your sudo user on your Microsoft Azure linux server 2. Now login as root user 1 Lines

[root@mohan ~]# sudo su – 3. check if root access is set (LOCK means that […]

Install docker ce on centos 7

Installing Docker On CentOS 7 / RHEL 7

Docker is a container virtualization technology that has gained widespread popularity in recent times; it offers a more efficient way to deploy the application. With Docker, the applications reside inside the container on top of the Linux operating system. Docker uses Kernel features such as cgroups and […]


OpenSSH usually listens on TCP port 22. However, there are some people who wish to change OpenSSH port to avoid brute-force bot attacks or to avoid from being blocked by restrictive firewall.

To change OpenSSH port, one only need to edit “/etc/ssh/sshd_config” file and change the port at “Port 22” to something else, like “Port […]

docker commonly used command

docker commonly used command

1. View the docker information (version, info)

View the docker version docker version

Displays information about the docker system docker info

2. the operation of the image (search, pull, images, rmi, history)

Retrieve image docker search image_name

Download image docker pull image_name

List the mirror list; -a, –all […]

docker export mirroring and import mirroring

docker export mirroring and import mirroring

Export Mirror:

docker save IMAGENAME | bzip2 -9 -c>img.tar.bz2

Import Mirror (for one machine):

bzip2 -d -c

Nginx Tomcat installation configuration

Tomcat is a lightweight application server, in the small and medium-sized system and concurrent access to the user is not a lot of occasions are widely used, is the development and debugging JSP program of choice. It can be argued that when a Tomcat server is configured on a machine, it can use it to […]

rsync + inotify

rsync + inotify is a more commonly used real-time synchronization solution, but it is not applicable in all the scenes,

rsync + inotify more suitable for the following 10 small-scale web cluster in real-time synchronization, but in the use of rsync + inotify solution and the use of rsync daily, rsync + inotify rsync server […]

Basic ClamAV installation on CentOS 7 and CentOS 6

Basic ClamAV installation on CentOS 7 and CentOS 6

ClamAV is an open source antivirus engine for detecting trojans, viruses, malware & other malicious threats. ClamAV includes a multi-threaded scanner daemon, command line utilities for on demand file scanning and automatic signature updates. It is one of the most popular virus scanner that run on […]

Enable Event MPM in Apache 2.4 on CentOS/RHEL 7

Apache apache, Event, Modules, MPM 2 Comments

Apache MPM (Multi-Processing Modules) are Apache modules for creating child processes in Apache. There are many Apache MPM available, Each of them works in his own way. If you are using default Apache installation, Apache will use Prefork MPM by default.

Event MPM is launched with […]

Open Web Application Security Project

In today’s article we will guide you through the process of installing mod_security with the OWASP (Open Web Application Security Project) core rule set on a CentOS 7 from source.

ModSecurity is a web application firewall engine that provides very little protection on its own. In order to become useful, ModSecurity must be configured with […]