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 […]
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GUI : Format USB drive on Ubuntu
In this post we are sharing step by step method of how to format USB drive on Ubuntu through GUI (Graphical User interface). The use of USB pen drive is common now a days, a storage you can keep in your pocket. Sometimes you want to format the USB pen drive and you have awesome […]
Create DV SSL Certificate and approve from CA authority
Domain Validated (DV) SSL Certificate are encryption only certificates commonly used by many websites. To validate the DV SSL Certificate no paperwork is required and this can be validated either by email or phone call . That is the reason you can quickly obtain the DV SSL certificate. Advantage of DV SSL 1. Fast Approval […]
Cassandra backup script on linux system
In this post we are sharing the Cassandra backup script on linux system. Backup is always important part of any system. Backup will help you to get the data back in case data is removed due to some reason. The script includes two section as per the Cassandra backup requirement. These are given below 1. […]
Install owncloud 8 on ubuntu server 14.04
Owncloud which is now very very famous and considered as one the best free Open Source alternate of Dropbox. The steps of installation is almost similar as we did while installing Owncloud 7. Checkout what is new in Owncloud 8. Install Owncloud 8 Before starting , let’s share our practical scenario – 1. Owncloud : […]
Install yEd graph editor on Ubuntu
Introduction yEd is famous free graph editor. yEd is written in Java and cross platform, it means it can be installed on most of Operating system like Windows, Unix like, Linux , Mac OS etc. It is best alternate of Dia. We can create different types of graph by using yEd, some of them are […]
How to install Cassandra 2 on CentOS 7 / RHEL 7
Cassandra is one the popular and robust distributed database management system. It is known for providing high availability with no single point of failure. It has one of the awesome feature that is asynchronous replication between multiple nodes without requiring master nodes. While working on Cassandra cluster, I was introduced with terms called Data Center […]
sed : remove lines between two keywords [ including keywords ]
The post explains a useful sed command trick to remove all lines between two keywords. The lines which has these keywords will also be removed. The below given command will show you the output on terminal and do not make any changes inside the file. So it is safe to use as preview output. sed […]
Install php 5.4 on CentOS 6 with yum command
In this post we will install php 5.4 on CentOS 6 with yum command . In available default repo of CentOS, we will get the php 5.3 version. Some PHP developers uses the PHP 5.4 version for application, hence we need PHP 5.4 to be installed on CentOS 6.x . It is known that in […]
How to upgrade to CentOS 6.6 from CentOS 6.x series
In this post we will learn, how we can upgrade to Cent 6.6 from CentOS 6.x series. By this method, you can upgrade from CentOS 6.0/6.1/6.2/6.3/6.4/6.5 . Doing regularly update is recommended practice. Whereas we have to check and consider many things.Hence, before upgrading to CentOS 6.6 we highly recommend you to read the release […]
Enable verbose mode while gem install of package
This is a quick post on how to enable verbose mode while gem install of package. When we install package with gem command, it takes time to fetch the spec file from site . We require the verbose mode to check the progress of installation. It helps in troubleshooting in case there is any problem […]
Install and configure elasticsearch cluster on Ubuntu 14.04 LTS
Elasticsearch is a popular search server based on Lucene. It is well developed in Java and with awesomeness of Open source, it is available to all. In this tutorial we will talk about how to install and configure elasticsearch cluster on Ubuntu 14.04 LTS. Details Of Elasticsearch Cluster Architecture Operating System : Ubuntu 14.04 LTS […]
Install and set Java on Ubuntu 14.04 LTS with tar ball file
In this tutorial we will learn , how to install and set Java on Ubuntu 14.04 LTS with tar ball. Currently on Oracle official site the .deb package is not available. We will first download the JDK tar package and then simply set the environment. Steps to set Java environment is same with Debian, Ubuntu, […]
2 Methods to remove CONTROL-M characters from a file in Linux/Unix
Whenever we transfer the files from Windows to Linux / Unix system generally it has CONTROL-M character inside. Which appears as ^M inside the files . To prevent this you can first copy paste the content in notepad then again copy to file in linux system. Here, notepad will help you to transfer the ASCII character.
Install Maxthon cloud browser on Ubuntu
Learn how to Install Maxthon cloud browser on Ubuntu. It is very easy to install. Browser like Firefox, google Chrome, Opera this is also another Web browser.