RHEL 8 New features

Find the below new features of RHEL 8. This is the first major Linux version after IBM bought RedHat.

1. The Cockpit – Web-based server manager is now available by default
2. YUM version is now based on DNF. This new version is compatible with YUM v3 (RHEL 7)
3. RPM v4.14 is distributed in RHEL 8.
4. RPM now validates the whole package contents before starting the installation
5. RHEL 8 content is distributed through the two main repositories: BaseOS and Application Stream (AppStream)
6. RHEL 8 support up to 4PB of physical memory
7. XFS now supports shared copy-on-write data extents
8. Wayland is the default display server for RHEL 8
9. nftables replaces iptables as the default firewall
10. PHP 7.2 comes with RHEL 8
11. Nginx 1.14 is available in core OS repository in RHEL 8
12. Python 3.6 is the default Python version in RHEL 8

Red Hat Enterprise Linux 8 provides support for following architectures.

1. AMD and Intel 64-bit architectures

2. The 64-bit ARM architecture

3. IBM Power Systems, Little Endian

4. IBM Z

Ubuntu 18.04 LTS - Bionic Beaver - necessary installations

Wifi driver installation for HP Laptop:
lspci | egrep -i --color 'network|ethernet'

Simple steps for wifi driver installation
sudo apt update
sudo apt install git dkms
git clone https://github.com/smlinux/rtl8723de.git -b 4.11-up
sudo dkms add ./rtl8723de
sudo dkms install rtl8723de/5.1.1.8_21285.20171026_COEX20170111-1414
sudo depmod -a

Uget - free downloader for Ubuntu:

sudo apt-add-repository ppa:plushuang-tw/uget-stable

sudo apt-get update

sudo apt-get install uget aria2

VLC - free media player:

sudo add-apt-repository ppa:videolan/master-daily

sudo apt update

sudo apt install vlc qtwayland5

sudo apt install libavcodec-extra

Sticky notes:
sudo add-apt-repository ppa:umang/indicator-stickynotes
sudo apt-get update
sudo apt-get install indicator-stickynotes

Pinguy builder:
Download it from here: https://sourceforge.net/projects/pinguy-os/files/ISO_Builder/pinguybuilder_18.4-1_all-alpha.deb/download
Once downloaded ‘CD’ to the folder where it is and run:
sudo dpkg -i pinguybuilder_18.4-1_all-alpha.deb
sudo apt-get install -f

Audacity installation:
add-apt-repository ppa:ubuntuhandbook1/audacity
apt update && sudo apt install audacity

Test Disk - command line data recovery app
apt-get install testdisk 

Ultracopier - a faster copier
apt-get install ultracopier

Google Chrome web browser on Ubuntu 18.04 Bionic Beaver Linux

Simple 4 steps to install Google Chrome in Bionic Beaver.

Follow the below four steps to install Google Chrome in Ubuntu 18.04 LTS Bionic Beaver Linux

1. $ sudo apt install gdebi-core
2. $ wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
3. $ sudo gdebi google-chrome-stable_current_amd64.deb
4. $ google-chrome

Necessary apps for Linux mint 18.1 Xfce

Necessary apps for Linux mint 18.1 Xfce
1. VLC player
$sudo apt-get install vlc
2. Flareget - download manager
https://flareget.com/download
3. Ultracopier
$sudo apt-get install ultracopier
4. Virtual box
$sudo apt update
$sudo apt install virtualbox
$sudo apt install virtualbox-qt
5. Google chrome
http://winaero.com/blog/install-google-chrome-linux-mint-18/
6. Audacity - audio editor
$sudo apt-get install audacity
7. Pinguy builder - for imaging the customized iso of installed system.
8. Test disk - command line data recovery app
$sudo apt-get install testdisk
9. Openshot - video editor
$sudo apt-get install openshot
10. gedit text editor
$sudo apt-get install gedit
11. Wine
$sudo apt-get install wine*

Peroidic table of Linux Distros

3 Simple steps to install VLC in Linux Mint 18.2

Follow the below steps to install VLC in Linux Mint 18.2

$sudo add-apt-repository ppa:videolan/stable-daily
$sudo apt-get update
$sudo apt-get install vlc

DNS configuration history in RHEL 5

   18  rpm -qa |bind
   19  rpm -qa |grep bind
   20  rpm -ivh bind-9.3.3-7.el5.i386.rpm 
   21  rpm -ivh bind-devel-9.3.3-7.el5.i386.rpm 
   22  rpm -ivh bind-libbind-devel-9.3.3-7.el5.i386.rpm 
   23  rpm -ivh bind-libs-9.3.3-7.el5.i386.rpm 
   24  rpm -ivh |grep bind
   25  rpm -qa |grep bind
   26  rpm -ivh bind-libbind-devel-9.3.3-7.el5.i386.rpm 
   27  rpm -ivh bind-libs-9.3.3-7.el5.i386.rpm 
   28  cd /var/named/chroot/var/named/
   32  rpm -qa |grep bind
   33  rpm -ivh bind-sdb-9.3.3-7.el5.i386.rpm 
   36  cd /var/named/chroot/
   42  ls named .conf
   43  ls named.conf
   44  service xinetd status
   45  cd /var/named/chroot/var/named/
   46  ls
   47  service iptables stop
   48  service iptables save
   49  setenforce 0
   50  ls
   57  ifconfig 
   58  ping 172.24.0.1
   59  chcon -R -t samba_share_t /data
   71  rpm -ivh caching-nameserver-9.3.3-7.el5.i386.rpm 
   72  cd /var/named/chroot/var/named/
   73  ls
   74  vi /var/named/chroot/etc/
   75  cd /var/named/chroot/etc/
   76  ls
   77  vi named.caching-nameserver.conf 
   78  ls
   79  cd /var/named/chroot/var/named/
   80  ls
   81  cp localdomain.zone for.example.com
   82  cp named.local rev.example.com
   83  chown root:named for.example.com
   84  chown root:named rev.example.com
   85  vi /etc/resolv.conf 
   86  vi /etc/hosts
   87  vi /etc/sysconfig/network-scripts/ifcfg-eth0 
   88  cd /var/named/chroot/etc
   89  cp named.caching-nameserver.conf named.conf
   90  chown root:named named.conf
   91  vi named.conf
   92  ls
   93  vi named.rfc1912.zones 
   94  cd /var/named/chroot/var/named/
   95  ls
   96  vi for.example.com 
   97  vi named.rfc1912.zones 
   98  vi rev.example.com 
   99  service named restart
  100  chkconfig named on
  101  dig -x 172.24.0.254