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15 Interview Questions on Linux “ls” Command – Part 1

15 Interview Questions on Linux “ls” Command – Part 1
The listing command in UNIX and UNIX like operating System ‘ls‘ is one of the most basic and widely used utility in command-line. It is POSIX compliant utility available for GNU coreutils and BSD variants. The ‘ls’ command can be used with a variety of options to get desired results. This article aims at deep insight of file listing command in Linux with relevant examples. 1. How will you List files from a directory? Ans:.....
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Setting Up “NTP (Network Time Protocol) Server” in RHEL/CentOS 7

Setting Up “NTP (Network Time Protocol) Server” in RHEL/CentOS 7
Network Time Protocol – NTP- is a protocol which runs over port 123 UDP at Transport Layer and allows computers to synchronize time over networks for an accurate time. While time is passing by, computers internal clocks tend to drift which can lead to inconsistent time issues, especially on servers and clients logs files or if you want to replicate servers resources or databases. Requirements: CentOS 7 Installation Procedure RHEL 7 Installation.....
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Online Music Streaming with Winamp Player and Mixxx DJ console using “SHOUTcast Radio Server” in Linux

Online Music Streaming with Winamp Player and Mixxx DJ console using “SHOUTcast Radio Server” in Linux
The previous tutorial concerning SHOUTcast server, just covered the basic server setup on CentOS 7 Linux distribution, without any live media streaming. This guide is not addressed for advanced Linux users and will guide you through the process of how you can use one of the most popular music player on Windows platforms, Winamp, to broadcast audio media online from remote points with the help of SHOUTcast DSP plugin and, also, how you can use the.....
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Setting Up Prerequisites for Oracle 12c Installation in RHEL/CentOS/Oracle Linux 6.5 – Part I

Setting Up Prerequisites for Oracle 12c Installation in RHEL/CentOS/Oracle Linux 6.5 – Part I
Oracle database is the set of related data collections, we can call it as Relational database management system (RDBMS) or just Oracle. While comparing to any other database solution oracle is one of the powerful DBMS with many features such as tune-able, reliable and scalable. Oracle produce separate hardware for oracle software’s, but same can be used in any other vendor products too. In 1977 Larry Ellison and his friends founded a software.....
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Disable and Remove Unwanted Services on RHEL/CentOS 7 Minimal Installation

Disable and Remove Unwanted Services on RHEL/CentOS 7 Minimal Installation
RHEL/CentOS 7 minimal installation for servers comes with some default pre-installed services, such as Postfix Mail Transfer Agent daemon, Avahi mdns daemon (multicast Domain Name System) and Chrony service, which is responsible to maintain system clock. Now comes to the question.. Why wed need to disable all these services. if they are pre-installed? One of the main reason would be to increase system security level degree, the second reason is.....
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Installing SHOUTCast Radio Server (Online Media Streaming) on Linux

Installing SHOUTCast Radio Server (Online Media Streaming) on Linux
SHOUTcast is a proprietary software used to stream media over Internet, especially used in music live streaming by the radio stations in Internet, and is developed by Nullsoft with versions for all major platforms, including Linux. This tutorial will guide you on how you can install The SHOUTcast Distributed Network Audio Server (DNAS 2.0) in CentOS 7, with the help of which you can use media players, like Winamp or Mixxx to connect to streaming.....
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Setup Caching-Only DNS Server Using “Bind” in CentOS 6.5

Setup Caching-Only DNS Server Using “Bind” in CentOS 6.5
There are several type of DNS servers such as master, slave, forwarding and cache, among them Caching-Only DNS is the one, which is easier to setup. DNS use UDP protocol so it will reduce the query time because UDP protocol does not have an acknowledgement. Read Also: Setup Master-Slave DNS Server in CentOS 6.5 The caching-only DNS server is also known as a resolver. It will query DNS records and get all DNS information from other servers and stores.....
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Phabricator – An Open Source Powerful “Project Management” Tool for Linux

Phabricator – An Open Source Powerful “Project Management” Tool for Linux
Phabricator is an open source application that helps software companies to create/build better software, which is built using PHP language and available under Apache 2.0 open source license for Linux, MacOSX and can be run in any platform, it can even run in windows but it is totally based on Linux support. Phabricator has been used by Facebook before. The first version of phabricator was built by facebook with lots of features such as reviewing and.....
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