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 IP Addressing: Part-01 IP Address or Logical Address - is a unique number which is assigned to your device. There are two version of IP address                                                        Here we will discuss about IPv4 Address scheme IP Address is a 32 bit binary address written as 4 numbers separated by dots. The 4 numbers are called as  octets  where each octet has 8 bits. The octets are divided into 2 components- Network ID and Host ID .   1. Network ID  represents the IP Address of the network and is used to identify the network                 2. Host ID   represents the IP Address of the host and is used to identify the host within the network. We have to know the process of converting Decimal to Binary and Vice-Versa We  know below format  from my childhood. Right?    512                256                128       64               32               16               8               4               2               1   Example: Now, if we want to convert 260 to Bina

OpenOffice installation in RHEL-8/CentOS-8: We use Microsoft office in Windows. Same as we use OpenOffice in RedHat Linux.  Procedure is given below: [root@itbd ~]#  dnf  -y  update   [root@itbd ~]#  java   -version   [root@itbd ~]#  yum  install  -y  java-1.8.0-openjdk java-1.8.0-openjdk-devel   [root@itbd ~]#  java   -version [root@itbd ~] # mkdir  /mnt/office [root@itbd ~] #  cd  /mnt/office/ [root@itbd office]#   wget  https://sourceforge.net/projects/openofficeorg.mirror/files/4.1.7/binaries/en-US/Apache_OpenOffice_4.1.7_Linux_x86-64_install-rpm_en-US.tar.gz [root@itbd office]#  tar  -xvf   Apache_OpenOffice_4.1.7_Linux_x86-64_install-rpm_en-US.tar.gz [root@itbd office]#   cd  en-US/RPMS/ [root@itbd RPMS]# rpm  -Uvih  *rpm [root@itbd RPMS]# rpm  -Uvih  desktop-integration/openoffice4.1.7-redhat-menus-4.1.7-9800.noarch.rpm [root@itbd RPMS]# init 6   [root@itbd ~]#  openoffice4