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Server Load Balancing for engineers

A 2 day
HANDS ON
training course

Server Load Balancing training course description

This two-day Server Load Balancing course introduces the concepts of SLB from the reasons to implement, through the basics and then onto details studies of load distribution, health checks, layer 7 switching and Global SLB.

Key outcomes from this course

By the end of the course delegates will be able to:
  • Explain packet paths when implementing SLB.
  • Recognise the impact of different topologies.
  • Evaluate SLB load distribution methods.
  • Describe how load balancers can improve security.
  • Explain how GSLB works.

Server Load Balancing training course details

Who will benefit:
Anyone working with SLB.
Prerequisites:
None.
Duration:
2 days

Training approach

This structured training course seeks to build upon workbook learning through the use of group exercises, dynamic discussion and individual tasks in order to deliver an engaging and interactive module that will ensure all candidates are able to transfer their new skills into the workplace.

Overall ratings for this course:

Course review


"Hard concepts were explained very simply."
J. S., Framestore CFC
"Excellent presentation - very good course structure."
B. M., London Internet Exchange

Server Load Balancing training course contents


Introduction
Concept, reasons, benefits, alternatives. Other features: Security, Caching

SLB concepts
Architectures, Virtual servers, real servers, Virtual IP address, health checks. DNS load balancing. Packet walk using SLB.

Load balancing
6 modes of bonding and load balancing without SLB. ISP load balancing. Health. Distribution policies: Round Robin, least connections, weighted distributions, response time, other variations. Persistent versus concurrent.

Layer 4 switching
L2 SLB, L3 SLB, single arm SLB, DSR, more packet walking, TCP versus UDP, Port numbers.

Layer 7 switching
Persistence. Cookie switching, Cookie hashing, Cookie insertion, URL switching, URL Hashing, SSL.

Health checks
Layer 3: ARP, ping. Layer 4: SYN, UDP. Layer 7: HTTP GET, Status codes, HTTP keepalives, content verification, SSL. Other application keepalives. What to do after failure and recovery.

Security
NAT complications, DOS attack protection, SYN attack protection, Rate limiting: connections, transactions. SSL offload.

Redundancy
Logging options, controlling logs, Samba utilities, network protocols, .SMB/CIFS. Performance tuning.
Hands on: Troubleshooting Samba.

GSLB
Anycasting. DNS, TTL, DNS load balancing, problems with DNS load balancing, HTTP redirect, health, thresholds, round trip times, location.

Why Choose Us

SNT trainers score an average of over 90% on the three main areas of:
  • Ability to teach
  • Technical knowledge
  • Answering questions
“Excellently presented by a very knowledgeable and enthusiastic trainer.” P.D. General Dynamics

We limit our maximum class size to 8 delegates; often we have less than this. This ensures optimal interactivity between delegates and instructor.
"Excellent course. The small class size was a great benefit…" M.B. IBM

We write our own courses; courseware does not just consist of slides and our slides are diagrams not bullet point text. A typical chapter provides clearly defined objectives with a chapter overview, slides with text underneath, a quiz at the end to check the learning of the students. Hands on exercises are at the end and are used to reinforce the theory.

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