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Found 2003 Articles for Operating System

3K+ Views
This article will show you – how to configure the DNS caching or forwarding server in the local environment with the use of DNS. DNS (Domain Name System) are often critical servers to get right, when we are learning things such as configure websites and servers. Most of the people will choose to use the DNS servers which is provided by the hosting company or the domain controllers.Caching DNS ServerThe configuration will cache the DNS server. This type of servers are called as resolvers because it handles recursive queries and can handle the grunts of tracking the DNS data from ... Read More

378 Views
The predominant project of a Linux approach administrator is to make certain that the system is in an excellent condition. Collectl is used to collect performance information that describes the present process popularity. Unlike most of the other monitoring tools, collectldoes no longer center of attention in a restricted number of process metrics. Instead it can gather information on many different types of system resources such as cpu, disk, memory, network, sockets, tcp, inodes, infiniband, lustre, memory, nfs, processes, quadrics, slabs and buddyinfo. This article explains about how to install collectl.FeaturesIt runs interactively, as a daemon or both.It displays the ... Read More

237 Views
Clementine is a freely available cross-platform open source, Qt based track player encouraged by using Amarok 1.4. The Newest stable available which is version 1.3 was released after a year of development and springs with Vk.Com and Seafile support along with countless different enhancements and trojan horse fixes. This article explains about how to install Clementine music player.FeaturesIt will search and play local music libraryYou can listen to online Radio from Spotify, Grooveshark, SomaFM, etc.We can play songs from Dropbox, Google Drive, OneDrive, Amazon could, etc.It creates smart playlists and dynamic playlists.It transfers music in iPod, iPhone, android, other mobile ... Read More

667 Views
Go is a free and open source programming language created by Google in 2007. It supplies convenient to construct simple, nontoxic, and effective programs. This language is designed for writing on servers. This article explains about ‘How to install Go 1.7 on Ubuntu’Installing Go Programming languageTo download Go language binary archive file, use the following command –$ wget https://storage.googleapis.com/golang/go1.7.1.linux-amd64.tar.gzThe sample output should be like this –--2016-12-29 10:49:44-- https://storage.googleapis.com/golang/go1.7.1.linux-amd64.tar.gz Resolving storage.googleapis.com (storage.googleapis.com)... 216.58.197.48, 2404:6800:4007:807::2010 Connecting to storage.googleapis.com (storage.googleapis.com)|216.58.197.48|:443... connected. HTTP request sent, awaiting response... 200 OK Length: 81618401 (78M) [application/x-gzip] Saving to: ‘go1.7.1.linux-amd64.tar.gz’ go1.7.1.linux-amd64 100%[===================>] 77.84M 5.98MB/s in 16s ... Read More

698 Views
Netstat is a command line utility that can be utilized to list out all the network (socket) connections on a method comparable to network connections, routing tables, interface records, masquerade connections, multicast memberships etc. This article explains about – Top 10 Netstat Command Examples on Linux.Listening and non-listening socketsTo show about listening and non-listening sockets, use the following command –$ netstat -allThe sample output should be like this –Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 0 localhost:mysql *:* LISTEN tcp 0 0 linux-Inspiron-3:domain *:* LISTEN tcp 0 0 linux-Inspiron-35:46930 ec2-54-236-207-15:https ESTABLISHED ... Read More

347 Views
Rainbow Stream is a free and open source Twitter-consumer for Linux command-line, released under MIT License. It is competent of showing Rea ltime tweet stream, compose a tweet, search, favorite, etc.It is written in Python and built on high of Twitter API and Python Twitter Tool. To run this application in your console you must have installed python and pip version 2.7.x or 3.x.FeaturesIt is a free and open source twitter-client for Linux command-line.It is capable of rendering twitter image in Terminal.It supports Proxy.It supports interactive mode.Theme customization is implemented.It has the capability of showing real-time twitter stream.You can tweet, ... Read More

230 Views
Monitorix is a free, open source, lightweight system monitoring tool designed to monitor as many services and system resources as possible. It has been created to be used under the production of Linux/UNIX servers but due to its simplicity and small size it can be used on embedded devices as well. This article explains about “How to install Minitorix on Ubuntu”.Adding the Monitorix RepositoryTo add the Monitorix Repository, open /etc/apt/sources.list file as shown below –$ sudo nano /etc/apt/sources.listThe sample output should be like this –# deb cdrom:[Ubuntu 16.04 LTS _Xenial Xerus_ - Release amd64 (20160420.1)]/ xenial main restricted # See ... Read More

1K+ Views
A text editor is a kind of program used for modifying simple text records. Such packages are repeatedly often called “notepad” application, following the Microsoft Notepad. This article explains about -“Top 5 Best Linux Text Editors”Vi EditorVim is a pre-set up text editor that’s upwards suitable to Vi. It may be used to edit all sorts of plain textual content. It is exceptionally priceless for enhancing packages.To open Vi editor, use the following command –$viThe sample output should be like thisTo get the more infomation about Vi editor, use the following command –$ vi --helpThe sample output should be like ... Read More

191 Views
“More than the act of testing, the act of designing tests is one of the best bug preventers known.” – Boris BeizerWell, designing and maintaining the testing activities involves a lot of attention and takes precious times of the team. The pain of organizing the test cases, test suits, then keeping the records of the test results phases after phases, tracking the bugs, and then maintaining those various reports and metrics, a quality assurance person can understand who actually performs all those activities. Also tracing the requirements against a particular test case is another painful task when needed.How about a ... Read More

11K+ Views
This article will help you to create IPtables rules that you can directly use for your daily or routine needs, These examples will act as basic templates for you to work on iptables with these rules which suit your specific requirement.Deleting the IPtables or Existing RulesBefore you start building new IPtables set of rules, you should clean up all the default rules, and existing rules. Use the IPtables flush command, below are some examples –#iptables --flush (or) # iptables --FDefault Policies ChainThe default policy is ACCEPT, change the policy to DROP for all the INPUT, FORWARD, OUTPUT.# iptables -P INPUT ... Read More