In this tutorial we will learn how to install latest wordpress in CentOS 6.Installing the WordPress is quite easy but here we will create a database user which only has access to wordpress database.This practical is applied to VPS,Cloud Server,virtual server and dedicated server. Note: VPS,Cloud Server,virtual server are based on Virtualisation techninque We are…
This is a small tip to find mysql commands history without login into mysql server.When we login into MySQL server,generally we uses up and down arrow key to find the history of MySQL commands. Actually the MySQL commands history are saved in file called .mysql_history located in user’s home directory by which he/she logged into…
In this tutorial we will learn, set and unset line number in file with vi editor. The same is applicable to vim editor also.(vim is advanced vi editor).vi editor is one of the famous and bydefault file editor in many linux distro. In vi editor you can use regex tricks. To set line number in…
In this post we will learn about how to reindex lucene search in Owncloud 5.0.22. While working in Owncloud 5.0.22 our requirement was to reindex the lucene search. Overview: When a user placed a cursor and type some keyword ,bydefault it creates a directory lucene_index (absolute path is /path/of/owncloud_installed_dir/data/username/lucene_index ) . On writing the keyword…
In this post we will know how to rescan file system in Owncloud 5.x version.While working in owncloud I got the application called rescan but it was not working and I got a blank page.After exploring more into owncloud I got two ways to rescan the file system. Owncloud Version: 5.0.22 Method 1: Using console.php…
In this post we will know how to rename table in mysql using command line. It is basic and important command for MySQL database administration. We are doing this practical in MySQL server version 5.5.29. Syntax: Replace the table_name and NEW_TABLE_NAME as per your requirement. ALTER TABLE table_name RENAME NEW_TABLE_NAME Example: See the below given…
In this post we will learn about how to copy the existing table in mysql. The newly copied table does not have data means it will be blank but it has similar rows information from its parent table. After copying the table you have to insert the data by using INSERT command. Follow the given…
In this post we will learn easy and quick installation of VirtualBox 4.2.10 in Linux Mint Olivia. There are two ways to install any packages (1) Command line (2) Graphical (Using Software Manager) We mostly prefer to work in command line because it is faster as well as if there is any error it is…
In this post we will learn about quick installation of Google Chrome in Linux Mint 15 Olivia. As we know the Linux Mint 15 distro is based on Ubuntu 13.04 , hence apt-get and dpkg command can be run. To install the Google Chrome by using command line ,follow the given below steps Step 1:…
In this topic we will learn how to install and configure HAProxy 1.4.24 in CentOS 6.HAproxy is widely used Open Source tcp/http based loadbalancer.And many renowned company also using the HAProxy.Here in this tutorial we will install the latest stable HAProxy version 1.4.24 in CentOS 6.4. We recommend to install latest stable version 1.4.24, read…
In this post we will know about how to increase upload file size limit in php.ini . By Defualt in php.ini the upload file size limit is 2Mb.If your website require the user can upload more than 2Mb of file in website or blog,this can be done by editing php.ini file. In CentOS and Red…
In this tutorial we will learn simple steps to configure the static ip address in Ubuntu by using command line. It is always be a good practice to work on Linux or Unix system using command line.As a system admin we always prefer to work by using command line. Follow the given below steps to…
In this post I am sharing about how I mounted the NAS storage in owncloud to keep all users data in it. I checked the External Storage application of owncloud but here our requirement is we want to keep all data in NAS storage and user should not save anything in Owncloud Server’s disk. The…
Postgresql is open source object-relational database system and it is also widely use likewise mysql database system. If you are familiar with mysql you must be aware that in single line you can pass the password of mysql user for eg. mysql -u root -p password. But in postgresql it is not like that. Solution:…
Few days back I did some changes in /etc/postfix/virtual file and restarted the postfix service.Today I saw some error in mail logs stating “hash:/etc/postfix/virtual is unavailable. open database /etc/postfix/virtual.db: No such file or directory” I checked /etc/postfix/virtual.db about its existence by using command ls -l /etc/postfix/virtual.db and found it was not there. To resolve this…