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Introduction
Figure 1: Simplified architecture of a single computer
Figure 2: Simplified architecture of an enterprise cluster
Figure 3: Enterprise cluster with no single point of failure
Chapter 2: Handling Packets
Figure 2-1: The five Netfilter hooks in the Linux kernel
Figure 2-2: ipchains in the Linux kernel
Figure 2-3: iptables in the Linux kernel
Figure 2-4: Linux firewall and router example network
Chapter 4: Synchronizing Servers with RYSNC and SSH
Figure 4-1: rsync and SSH
Figure 4-2: SSH client connection request
Figure 4-3: SSH server response
Figure 4-4: The SSH client searches for the SSH server name in its known_hosts database
Figure 4-5: The SSH client and SSH server establish an SSH transport
Chapter 5: Cloning Systems with Systemimager
Figure 5-1: The SystemImager server and Golden Client
Figure 5-2: Software used on SystemImager server, Golden Client, and clone(s)
Chapter 6: Heartbeat Introduction and Theory
Figure 6-1: Physical paths for heartbeats
Figure 6-2: A basic Heartbeat configuration
Figure 6-3: The same basic Heartbeat configuration after failure of the primary server
Chapter 7: A Sample Heartbeat Configuration
Figure 7-1: The Heartbeat network configuration
Chapter 8: Heartbeat Resources and Maintenance
Figure 8-1: Heartbeat active-active configuration
Chapter 9: Stonith and Ipfail
Figure 9-1: Two-server Heartbeat with Stonith—normal operation
Figure 9-2: Stonith sequence of events
Chapter 11: The Linux Virtual Server: Introduction and Theory
Figure 11-1: LVS cluster schematic
Figure 11-2: LVS-NAT network communication
Figure 11-3: LVS-DR network communication
Figure 11-4: LVS-TUN network communication
Chapter 12: The LVS-NAT Cluster
Figure 12-1: In packet 1 the client computer sends a request to the LVS-NAT cluster
Figure 12-2: In packet 2 the Director forwards the client computer's request to a cluster node
Figure 12-3: In packet 3 the cluster node sends a reply back through the Director
Figure 12-4: In packet 4 the Director forwards the reply packet to the client computer
Figure 12-5: An LVS-NAT cluster with multiple VIPs
Figure 12-6: Multiple VIPs and their relationship with the multiple virtual RIPs
Figure 12-7: LVS-NAT web cluster
Chapter 13: The LVS-DR Cluster
Figure 13-1: In packet 1 the client sends a request to the LVS-DR cluster
Figure 13-2: In packet 2 the Director forwards the client computer's request to a cluster node
Figure 13-3: In packet 3 the cluster node sends a reply back through the Director
Figure 13-4: An ARP broadcast to an LVS-DR cluster
Figure 13-5: An ARP response from the LVS-DR Director
Chapter 14: The Load Balancer
Figure 14-1: Incoming packets inside the Director
Figure 14-2: Outgoing LVS-NAT packets inside the Director
Figure 14-3: Netfilter Marked Packets and LVS
Chapter 15: The High-Availability Cluster
Figure 15-1: A highly available DR cluster
Figure 15-2: ldirectord requests a health check URL
Figure 15-3: Real server 1 sends back the reply
Figure 15-4: Failure of primary Director
Chapter 16: The Network File System
Figure 16-1: Ethernet performance bottlenecks
Chapter 17: The Simple Network Management Protocol and Mon
Figure 17-1: Mon and
snmpd
for cluster monitoring
Figure 17-2: Mon examines the MIB of each cluster node
Chapter 18: Ganglia
Figure 18-1: The Ganglia Web package title section
Figure 18-2: The Ganglia Web package node snapshot section
Figure 18-3: The Host Report Title Section
Figure 18-4: The Host Report overview section
Chapter 19: Case Studies in Cluster Administration
Figure 19-1: LPRng in a cluster environment
Chapter 20: The Linux Cluster Environment
Figure 20-1: Figure of a ten-node cluster with a KVM device
Figure 20-2: High-availability cluster node manager
Figure 20-3: High-availability LTSP servers and Thin Clients
Figure 20-4: High-availability NAS server
Figure 20-5: Serial-to-IP communication devices
Figure 20-6: A highly available database server
Figure 20-7: The Linux Enterprise Cluster
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Linux Enterprise Cluster: Build a Highly Available Cluster with Commodity Hardware and Free Software
ISBN: 1593270364
EAN: 2147483647
Year: 2003
Pages: 219
Authors:
Karl Kopper
BUY ON AMAZON
Absolute Beginner[ap]s Guide to Project Management
What Is the Value of Project Management?
Qualities of Successful Project Managers
Building a Project Plan
The Essential Process for Managing Project Risks
High-Performing Teams
Identifying and Managing Project Risk: Essential Tools for Failure-Proofing Your Project
Identifying Project Scope Risk
Identifying Project Schedule Risk
Identifying Project Resource Risk
Managing Activity Risks
Quantifying and Analyzing Project Risk
VBScript Programmers Reference
Windows Script Host
Remote Scripting
Appendix A VBScript Functions and Keywords
Appendix C Coding Convention
Appendix L ActiveX Data Objects
Managing Enterprise Systems with the Windows Script Host
File Operations
Network Administration/WMI
Internet Applications
Exchange Server
Security
Cisco Voice Gateways and Gatekeepers
Troubleshooting Tools
Review Questions
Implementing COR
Need for DSP Resources
Quantitative Methods in Project Management
Organizing and Estimating the Work
Making Quantitative Decisions
Risk-Adjusted Financial Management
Quantitative Time Management
Special Topics in Quantitative Management
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