Found 75 Articles for Server

Rundeck allows you to run commands/scripts on a remote computer. It is used to create a job by defining a single step or a workflow that can execute any set of commands, scripts, or tools on any number of local or remote nodes. Jobs can be triggered by the scheduler or on-demand via the web interface or API. This article explains about ‘How to install Rundesk on Debian 8 server’Rundeck is written in java programming language, so it requires you to install java in your machine. To install Java programming on Debian, use the following commands –$ sudo dpkg --add-architecture ... Read More

This article will guide you to understand the Zombie process and Daemons, and also help us to find the process which is running in the background.What is Zombie Process?When a process ends the execution, then it will have an exit status to report to its master process. Because of that little bit of information, the process will remain in the OS process table as a zombie process, which indicates that it is not to be scheduled for future, but this process cannot be completely removed or the process ID will not be used until the exit has been determined and ... Read More

In this article, we will learn about Byobu on the Ubuntu 16.04, Byobu which is a terminal multiplexer and easy to use, Byobu is used to have multiple windows, consoles and split panes within the windows and will also show the status badges and notifications on the terminal.To complete this tutorial we needed an Ubuntu 16.04 installed and a Linux user with sudo permissions.Installing or Checking the ByobuAs a default feature of Ubuntu 16.04, Byobu is installed. However, as a practice, we will check the installation and version and if not we will install the Byobu.To check the Byobu is ... Read More

This article helps you to create and add a new virtual disk to an existing Linux virtual machine on VMware. Here are some steps for adding a new SCSI based virtual disk on a CentOS Linux virtual machine. We are assuming that you are already familiar with Linux system administration skills and having knowledge of vCenter Server or vSphere Client. For a full description of the utilities mentioned in this article, please refer to the manuals.SolutionTo add a new virtual disk for an existing Linux virtual machine, Log in as root on your Linux virtual machine. Run this below command ... Read More

In this article, we will be covering about the installation of Nagios 4, a very popular and open source monitoring tool on Centos 6.7. We shall cover some basic configuration steps which might be useful to monitor a host of resources via the web interface. Here, we shall also utilize the Nagios Remote Plugin Executor (NRPE) that is installed as an agent on remote hosts to monitor the local resources of Servers/clients.Nagios is useful for keeping an inventory of your servers, and making sure your critical services are up and running. Using a monitoring system, Nagios is an essential tool ... Read More

This article provides a basic understanding of Ansible technology along with steps to install it. Ansible is an open source IT automation software for configuring, managing and installing software’s on the clients or nodes without any downtime and agent installed on the nodes. It uses SSH to communicate with the clients.Currently, most of the IT Automation tools runs as an agent in remote host, but Ansible needs only an SSH connection, a user and a Python (2.4 or later).Environment Setup DetailsServer Operating System: Centos 6.7 IP Address: 192.168.87.140 Host-name: ansible.hanuman.com User: root Remote Nodes Node 1: 192.168.87.156 Node 2: 192.168.87.157Installing ... Read More

There are a number of reasons why you would want to set up your own Linux mail server. These days more people than ever are compelled to get their email fixed – if it ever fails. Postfix is an MTA (Mail switch Agent), a software used to send and receive mail. It is Wietse Venema’s mail server that began life at IBM research alternatively to the largely used Sendmail application. Now at Google, Wietse continues to support Postfix. This article explains about – How to setup Email Services using postfix in Linux.To install Postfix and test mail utilities, use the ... Read More

In this article, you can learn about – how to setup SFTP (Secured File Transfer Protocol) which will help us to transfer the files from local machine to remote server secure. FTP (File Transfer protocol) is a very popular method used to transfer files from one machine to another or from remote servers.SFTP stands for Secure File Transfer protocol, is a separate protocol, which uses SSH to secure the connection and makes the file transfer which traverses the file system on both remote server & local machine.How to Connect using SFTPSFTP uses the SSH protocol to connect and establish a ... Read More

In this article, you will learn about how to set up Apache virtual hosts on an Ubuntu Linux. During this process, you will learn how to serve different sites to different users depending on the domain/site they are requesting.Apache Web ServerThe Apache web server is the most popular and powerful way of serving web sites on the internet. It is used for more than half of all the active websites on the internet and is extremely powerful and flexible.Apache gives its functionality and the components to individual units which can be customized and configured independently. The basic unit that describes ... Read More

In this article, we will allow you to configure a password-less login for Linux system with SSH keys to connect to a remote Linux server without entering a password which will also increase the trust between two Linux servers for easy file transfer.SSH is an open source and trusted network protocol that is used to login into remote servers for executing of commands and programs. This is also used to transfer files from one computer to another computer over the network using secure copy (SCP).Creating SSH Keys# ssh-keygen -t rsa Generating public/private rsa key pair. Enter file in which to ... Read More