How to Install Oracle 11g R2 Database on Ubuntu 18.04 64-bit

Making Network Configuration

3. 3. Login as SuperUser

   Login as Super-User
   This to make Commands shorter to Execute:

   sudo su

   If Got “User is Not in Sudoers file” then see: How to Enable sudo

4. 4. Making Network Setup

   Then to Make Network Configuration
   Do:

   • Get hostname:

     hostname

   • Get IP:

     /sbin/ifconfig

     You will Find It Under the lo >> inet Section.

   • Check if Hostname is Already into the Enabled Hosts File.

     cat /etc/hosts

     If It’s Not Present then Insert it with:

     nano /etc/hosts

     Insert:

     [myIP] [myHostname]

     Example: ‘127.0.0.1 localhost.localdomain’

     Ctrl+Shift+v to Paste Content on nano
     Ctrl+x to Save and Exit from nano Editor :)

   • Grant Connection to X Server

     xhost +myIP

     Example: # xhost +127.0.0.1