Book Image

Troubleshooting Ubuntu Server

By : Skanda Bhargav
Book Image

Troubleshooting Ubuntu Server

By: Skanda Bhargav

Overview of this book

Related Content you might be interested in

Current Title:

Small book image
Troubleshooting Ubuntu Server
Skanda Bhargav
Sep, 2015 | 288 pages
No titles found
Table of Contents (16 chapters)
Troubleshooting Ubuntu Server
Troubleshooting Ubuntu Server
Credits
Credits
About the Author
About the Author
About the Reviewer
About the Reviewer
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Package Management
Package Management
Getting started with packages
Using dpkg for package management
Understanding the apt-get package management tool
The apt-cache tool
Package management with aptitude
Configuration and extra repositories
Automatic updates
Creating a repository mirror
Summary
2
Networking and DNS
Networking and DNS
Networking concepts
DHCP
Network sniffing with tcpdump
Binding and bonding
DNS
The primary zone file
The reverse zone file
Summary
3
Network Authentication
Network Authentication
OpenLDAP
Kerberos
Integrating LDAP with Kerberos
OpenSSH, public, and private keys – passwordless SSH
Allowing or denying users to SSH
Summary
4
Monitoring and Optimization
Monitoring and Optimization
Nagios
Puppet
ClusterSSH
Summary
5
Process Management
Process Management
The basics of process management
Signaling processes
Process priorities
Background processes
Summary
6
Shell Management, Tools, and User Management
Shell Management, Tools, and User Management
The Secure Shell server
Scheduling jobs with cron
Optimizing the shell
User management and file permissions
Summary
7
Virtualization
Virtualization
What is virtualization?
libvirt
JeOS and vmbuilder
Summary
8
OpenStack with Ubuntu
OpenStack with Ubuntu
The OpenStack architecture
The environment
The Identity service
The Image service
The Compute service
OpenStack networking
Creating initial networks
Dashboard
The Block Storage service
The Object Storage service
Summary
9
OpenStack and Ubuntu Best Practices
OpenStack and Ubuntu Best Practices
Creating rings for Object Storage
The Orchestration module
The Telemetry module
The Database service
The Data Processing service
OpenStack flashback
Best practices for Ubuntu Server
Summary
Index
Index

The OpenStack architecture

The following diagram shows the architecture of an OpenStack installation with the components. Let's take a look at what each component does and what the services are called.

We see there are nine blocks with different names, each one for a different component and running different services:

Image source: http://docs.openstack.org/

The following table puts the information of these components together:

Service

Project

Description

Dashboard

Horizon

The Horizon project provides the user with a portal for interacting with the services. Some of the examples are to launch an instance, assign IP addresses, and so on.

Compute

Nova

It is the responsibility of this service to manage the compute instances. They are related to virtual machine spawning, scheduling, and decommissioning.

Networking

Neutron

This does the job of enabling network-connectivity-as-a-service for other components in the OpenStack framework. Also, it has an API that can be used for defining...

Previous Section
End of Section 2
Next Section