Posted in Cloud, network, Openstack

Basic networking in Openstack Part 1

Once you install Openstack in single node or multinode setup next thing is to setup network. To understand networking in Openstack is little tedious job. This post is to describe basic Openstack networking concept by creating internal/external networking and testing the same.

First delete all default network like public and private which were created by default after Openstack installation using

#neutron net-delete <net-name>

Let us create new internal network first.

1

Create subnet for network private-net with subnet address 10.0.0.0/24

2

Continue reading “Basic networking in Openstack Part 1”

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Posted in Linux, Uncategorized

Graphical/Desktop UI for Centos 7/RHEL 7

Many times we need graphical UI to open/run some applications. So following are simple and quick steps to create graphical UI on Centos7/RHEL7.

First check you have yum repository configured to access local or internet repository

#yum repolist

6

Graphical UI filesets will install in group so that all required/dependent filesets will install automatically. Check all available groups in yum repository using group list

Continue reading “Graphical/Desktop UI for Centos 7/RHEL 7”