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rsync increment data

command will copy increment data and keep it in sync with remote server.

It will copy only incremental data. It will delete if any data deleted from source. It will copy again from source if any data deleted at destination. basically this command will keep the both environment in sync.

rsync -avWe ssh –delete-before (source) […]

Linux: include hidden files in tar archive

When you create a tar archive of a directory tree the hidden files are normally not included. Here’s how to include the hidden files.

Say you have a web directory called “/var/www/html/mysite/” that contains the following tree:

.htaccess index.php logo.jpg style.css admin_dir/.htaccess admin_dir/includes.php admin_dir/index.php

Normally you would use the tar command like this:

tar […]

Replacing IP Address in Apache2 config files with SED

Suppose i just mirrored my vps machine (starting from a clone and then rsync-ing all needed files) with rsync. Obviously i need to change the IP Address value contained into all the config files, but I’m lazy. So, let’s use “SED” to do it at once, with a single line command. I need to replace […]

rsync

There are many commands to copy a directory in Linux. The difference between them in current Linux distribution are very small. All of them support link, time, ownership and sparse.

I tested them to copy a Linux kernel source tree. Each command I tested twice and keep the lower result. The original directory size is […]

Reset SonarQube Admin User Password

Reset SonarQube Admin User Password

by default sonar creates admin account : user: admin, password : admin

Start root access to mysql database

mysql -uroot -p Copy Bash

Check if sonar database exists.

show databases; Copy SQL use sonar; Copy SQL

Reset admin user to admin password.

update users set crypted_password = ’88c991e39bb88b94178123a849606905ebf440f5′, salt=’6522f3c5007ae910ad690bb1bdbf264a34884c6d’ […]

Setup and Run Jenkins

Installing Jenkins:

Download latest or specific version you want to install from here.

For example:

$ wget https://updates.jenkins-ci.org/download/war/2.123/jenkins.war Starting Jenkins

The easiest way to execute Jenkins is through the built in Jetty servlet container. You can execute Jenkins like this:

June 25th, 2018 | Category: Centos RHEL 7 | Leave a comment

Bond Technology Load Balancing in Linux

Problem introduction

When the general enterprise is used to provide NFS service, samba service or vsftpd service, the system must provide 7*24 hours of network transmission service. The maximum network transmission speed it can provide is 100MB/s, but when there are a large number of users accessing, the server’s access pressure is very high, and the […]

Backup and Restore Files in Red Hat / CentOS 7

This procedure is to backup XFS-based file systems in Red Hat Enterprise Linux 7.x               Backing up a file system (/etc)

1. To backup the /etc/ filessystem to a file called “/tmp/mybackup”, issue the following command:

# cd /tmp

# xfsdump -0f mybackup   /dev/mapper/rhel-root -s etc

where:

-f: do the dump to the file […]

How to Setup a WebDAV Server Using Apache on CentOS 7

How to Setup a WebDAV Server Using Apache on CentOS 7

CentOS Linux Guides Server Apps Web Servers

WebDAV stands for “Web-based Distributed Authoring and Versioning”. It’s an extension of the HTTP protocol that allows users to manage and share files stored on a WebDAV-enabled web server.

This tutorial will show you how to setup […]

installing Nagios 4.1 on Centos 7

#### Problem Statement installing Nagios 4.1 on Centos 7 ## Step #1: Install LAMP yum install httpd -y systemctl start httpd systemctl enable httpd yum -y install mariadb-server mariadb systemctl start mariadb systemctl enable mariadb systemctl status mariadb mysql mysql_secure_installation yum install php php-mysql php-gd php-pear -y ## Install dependencies for Nagios sudo yum install […]

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