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November 24, 2016

How to Setup Password Authentication with Apache in Ubuntu

To Setup Password Authentication with Apache in Ubuntu

Apache is a popular web server that hides the websites private information from unauthorized users. It provides easiest way to secure your site with free trusted certificates. This article shows how to setup password authentication with Apache in Ubuntu.

Installation of Apache

Utilize the following command to install Apache package.

root@linuxhelp1:~# apt-get install apache2 apache2-utils -y Reading package lists... Done Building dependency tree Reading state information... Done The following additional packages will be installed: apache2-bin apache2-data libapr1 libaprutil1 libaprutil1-dbd-sqlite3 [...]
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September 24, 2016

How to install Power Commands in Ubuntu

To install Power Commands in Ubuntu

Power Commands is a graphical front end tool for Linux systems. It allows the system administrator to create some power tasks like Shutdown, Restart, Logout and Hibernate in an easy manner. Installation of Power Commands in Ubuntu is explained in this article.

Installation of Power Commands

First add the PPA repository to install the power commands.

root@linuxhelp:~# add-apt-repository ppa:atareao/atareao Applications from atareao More info: https://launchpad.net/~atareao/+archive/ubuntu/atareao Press [ENTER] to continue or ctrl-c to cancel adding it gpg: keyring `/tmp/tmpzo618gkk/secring.gpg' created gpg: keyring [...]
41
 
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September 16, 2016

How to install Subnetcalc in Ubuntu

To install Subnetcalc on Ubuntu for Subnet Address Calculation

Subnetcalc is a command line Subnet Address Calculator application. It calculates IPV4 and IPV6 subnet addresses. It provides the information of binary value of IP, broadcast addresses, network addresses and the number of host. Installation of Subnetcalc is explained in this manual.

Run the following command to add PPA repository before installing the subnetcalc.

root@linuxhelp:~# add-apt-repository ppa:dreibh/ppa This is Thomas Dreibholz's software repository. It contains the following packages: - rsplib - The Open Source implementation of Reliable Server Pooling (RSerPool) URL: [...]
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September 13, 2016

How to install gFTP on Ubuntu

To install gFTP in Ubuntu

gFTP is an open source FTP Client application used to connect with FTP Server’s.  It provides a GUI for the user’s to access the files and directories of the FTP Server in the Linux systems. Users can connect to the FTP server with the following information like FTP Server IP address, Port Number, Username and Password for the FTP user. The gFTP application supports the protocols like FTP, HTTP, SSH and FSP to transfer the file between client and server. Installation of gFTP in Ubuntu is explained in this article.

Installation of gFTP

First add the repository files for installing gFTP client application.

root@linuxhelp:~# add-apt-repository [...]
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September 3, 2016

How to create and manage Bridge Interface in Ubuntu

To create and manage Bridge Interface in Ubuntu

Bridge Interface is a software used to unite more than one LAN segments in Layer-2. It is used to filter and reduce network traffic between many LAN segments. The users can set up a software bridge that interconnects multiple network interfaces. Bridge interface service in Ubuntu is explained in this article.

Creation of Bridge Interface

First check the network interfaces by using the “ip link” command

root@linuxhelp:~# ip link 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 2: ens33: [...]
37
 
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August 12, 2016

How to Encrypt and Decrypt Files using Ccrypt Command

To Encrypt and Decrypt Files using Ccrypt Command

Ccrypt is a command line tool, used to encrypt and decrypt the files and streams in Linux. The encrypted files could not be decrypted without key phrase. Ccrypt standard provides strong security for your encrypted files. Encryption and decryption of linux files using ccrypt command is explained in this article.

Installation of Ccrypt Command

First update the repository by using the following command.

root@linuxhelp:~# apt-get update Hit http://ppa.launchpad.net wily InRelease Hit http://in.archive.ubuntu.com wily InRelease Hit http://security.ubuntu.com wily-security [...]
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August 4, 2016

How to display kernel slab cache information using Slabtop

To display kernel slab cache information using Slabtop

slabtop displays detailed kernel slab cache information in real-time. It displays a listing of the top caches sorted using the listed sort criterias. It also displays a statistics header filled with slab layer information.

Run slabtop command without any option to display all the kernel slab information

root@user1-linuhelp:~# slabtop Active / Total Objects (% used) : 513745 / 535134 (96.0%) Active / Total Slabs (% used) : 11959 / 11959 (100.0%) Active / Total Caches (% used) : 73 / 102 (71.6%) Active / Total Size (% used) : 124066.13K / 128612.94K (96.5%) Minimum / Average / Maximum Object : [...]
89
 
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August 3, 2016

How to List Block Device Information – lsblk Command

To List Block Device Information – lsblk Command

In this manual we will learn how to use lsblk command. It lists the information about the specified block devices. It prints all the details of the system in tree format except the RAM details.

To display block information

Run lsblk command to display all device information in tree format.

root@user1-linuhelp:/home/user1# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT fd0 2:0 1 4K 0 disk sda 8:0 0 20G 0 disk ├─sda1 8:1 0 14G 0 part / ├─sda2 8:2 0 1K 0 part ├─sda5 8:5 0 2.8G 0 part [SWAP] └─sda6 8:6 0 3.2G 0 part sr0 11:0 1 1024M 0 rom To [...]
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July 30, 2016

How to Create Bar Code and QR Code in Ubuntu

To Create Bar Code and QR Code in Ubuntu 15.10

In this tutorial we will learn how to install and create Barcode and QR code in Ubuntu 15.10

To install Barcode

Utilise the following command to install the aptitude package.

root@user1-linuhelp:~# apt-get install aptitude Reading package lists... Done Building dependency tree Reading state information... Done . . . Setting up aptitude (0.7.3-1ubuntu1.1) ... update-alternatives: using /usr/bin/aptitude-curses to provide /usr/bin/aptitude (aptitude) in auto mode Processing triggers for libc-bin (2.21-0ubuntu4) ...

Execute the following command to search the barcode package.

root@user1-linuhelp:~# [...]
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July 28, 2016

How to install TLDR – An alternate to Man pages

To install TLDR Pages – An alternate to Linux man pages

TLDR pages is the pile of simplified and community driven man pages. It provides a result of a command with a light practical examples. Installation of TLDR is explained in this manual.

To Install the dependencies

Run the following command to install the epel repository

[root@linuxhelp1 ~]# yum install epel-release -y Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile * base: centos.excellmedia.net * extras: centos.excellmedia.net * updates: centos.excellmedia.net Resolving Dependencies --> Running transaction check ---> Package epel-release.noarch 0:7-6 will be [...]
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