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…
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…
In this tutorial we will learn, how to install redis 3.0 from source on Ubuntu 14.04 / CentOS 7 / RHEL 7. In our previous post we wrote tutorial on, install redis on CentOS 7 with yum command . Redis is a an Open Source advanced key-value cache and store . To know more about…
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…
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…
The osTicket is one of the famous open source ticketing tool , widely use in many organisations and companies. We will explain, how to install osTicket ( Open source ticketing tool) on Ubuntu 14.04 LTS . We will do self hosted osTicket installation. In case, you are looking for professional support for osTicket , that…
The secondary logging will help you to save history command output as log. In this practical, we will set the secondary logging for all users including root. Secondary logging will help you in audit by this way you can find out on which date and time users hit the command.
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…
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…
In this post, we will learn how to setup self signed SSL certificate for ghost blog on Nginx . In our previous posts, we have written post on “setting ghost on nginx to serve at HTTP / Port 80” . Recommended reading before starting to setup self signed SSL certificate for ghost blog on Nginx…
In this tutorial, we will setup Nginx as proxy to serve ghost blog on port 80 / http . Nginx is widely used as web server plus it can also be used in various ways like loadbalancer, cacheing server, reverse proxy server etc. The use of nginx web server will boost your ghost server serving…
In this post we will learn , how to create upstart event system for ghost blog on Ubuntu . In our previous post, we have written how to install and run the ghost blog on Ubuntu . By using upstart event system, we can start,stop and restart the ghost with service command. Whereas on system…
Ghost blog by default uses the sqlite database. After installing the Ghost blog on Ubuntu , I forgot the password of user. Because of unsuccessful trial more than a limit, my user also get deactivated. We have setup the self hosted ghost blog , hence it is quite easy to reset the password and activate…
Ghost is free and Open source blogging platform, it is written on javascript . It is very popular among many bloggers now a days. The Ghost is maintained by Ghost Foundation. Do you want to know more about Ghost blogging platform and its history ? You can read about ghost blogging platform on Wikipedia. Know…
Authorized_keys are important files which has the information of public keys for public key authentication. By default location is ~/.ssh/authorized_keys. Here, ~ is users default home directory in system. While working on SSH, we got requirement to centralize the authorized_keys of all users existing in system. In most of the system for SSH we use…