Install Ansible on Ubuntu / CentOS / RHEL

In our first post on Ansible, we will learn how to install Ansible on Ubuntu / CentOS / RHEL . In the world of IT automation tools, Ansible name is famous among system admins and developers. Ansible can be used in cloud provisioning, configuration management, application deployment, intra-service orchestration and other automation needs. Features of […]

Set postgres password on PostgreSQL 9.4

The post will explain, how to set postgres password on PostgreSQL 9.4 . We expect , you have already install postgres 9.4 on your Ubuntu system . The user called postgres has all privileges to work in postgres server. It is like an administrator. After installing postgreSQL 9.4 , by default without password user can […]

Install postgresql 9.4 on Ubuntu 14.04 LTS server

PostgreSQL is an object-relational database system (ORDBMS). It is free and its source code is available. Many volunteers, individuals and companies are contributing to develop the postgresql , the group is often addressed as PostgreSQL Global Development Group . PostgreSQL is cross platform means it can be run on many Linux/Unix based Operating System, Windows […]

Install webmin on Ubuntu 14.04 LTS Server

Webmin which is a web based system administration tool for unix based servers . The post will guide you to install latest webmin on Ubuntu 14.04 LTS Server. The webmin has list of modules to manage the unix / linux servers. One of the well known module is Virtualmin which will talk later on our […]

print new line character in Unix / Linux

This is quick post on print new line character in Unix / Linux. Here, we will share two methods of print / echo new line character. Generally , when we do bash/shell scripting most of the time we require this. Let’s start this essential basic of bash/shell scripting. echo command : new line character In […]

jemalloc/jemalloc.h: No such file or directory – Redis

Recently while installing redis from source, met with error – zmalloc.h:50:31: fatal error: jemalloc/jemalloc.h: No such file or directory . It seems the jemalloc is the dependency which is not allowing redis to compile. NOTE: We have already install redis 3.0 from source on Ubuntu 14.04 / CentOS 7 / RHEL 7 , where we […]

wget : continue download of the file

Wget command is generally used by many Linux/Unix users. GNU Wget is a free utility for non-interactive download of files from the Web. It supports HTTP, HTTPS, and FTP protocols, as well as retrieval through HTTP proxies (The definition taken from man wget command). If you are internet user, you many times have faced with […]

Print grep command output without seperator

I am working with grep command and found two dashes ( — ) in output. How can I print grep command output without two dashes ( — ) that is also called separator. Answer : To print grep command output without separator , you can use the option –no-group-separator with grep command. How to print […]

Enable php5-imap on Ubuntu 14.04 LTS

The imap extension of PHP helps to operate with the IMAP protocol, as well as the NNTP, POP3 and local mailbox access methods. In this post, we will learn how to enable php5-imap on Ubuntu 14.04 LTS Server. The php5-imap extension basically used in mail with IMAP protocol. Install php5-imap on Ubuntu Use the below […]

Install Cacti from source on Ubuntu 14.04 LTS Server

Cacti is very well known name in monitoring system. It is RRD tool based, gather the information by using external script/command and feed the data into RDBMS database like MySQL/MariaDB. Cacti frontend is basically written in PHP. We can use the SNMP to gather the information and feed into Cacti database . You can view […]