24 סה"כ שעות אקדמאיות
3 מפגשים
* מספר המפגשים והשעות למפגש עשויים להשתנות בין קורס לקורס
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המועדים הקרובים

קורס לקבוצות

הקורס נפתח במתכונת של קבוצה בלבד, בהתאמה אישית לארגונים.
לפרטים נוספים: Muzman@johnbryce.co.il

ספרו לי עוד

Overview

In this hands-on course, you will receive in-depth training on Wireshark® and TCP/IP communications analysis. You will learn to use Wireshark to identify the most common causes of performance problems in TCP/IP communications. You will develop a thorough understanding of how to use Wireshark efficiently to spot the primary sources of network performance problems, and you will prepare for the latest Wireshark certification exam.

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מטרות הקורס

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Who Should Attend

מתאים לאנשי תמיכה טכנית, טכנאי שטח, אנשי מכירות, מנהלי תיקי לקוחות (Account managers), מנהלי צוותי מכירות בתחום התקשורת, מנהלי שיווק בתחום התקשורת והייטק, מנהלי פיתוח עסקי , מנהלי רכש והדרכה.

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תכנית הלימודים

full syllabus
PDF להורדה

1. Introduction to Network Analysis and Wireshark

  • TCP/IP Analysis Checklist
  • Top Causes of Performance Problems
  • Get the Latest Version of Wireshark
  • Capturing Traffic
  • Opening Trace Files
  • Processing Packets
  • The Icon Toolbar
  • The Changing Status Bar
  • General Analyst Resources

2. Learn Capture Methods and Use Capture Filters

  • Checksum Issues at Capture
  • Analyze Switched Networks
  • Walk-Through a Sample SPAN Configuration
  • Initial Analyzing Placement
  • Remote Capture Techniques
  • Available Capture Interfaces
  • Save Directly to Disk
  • Capture File Configurations
  • Limit Your Capture with Capture Filters
  • Examine Key Capture Filters

3. Navigate Quickly and Focus Faster with Coloring Techniques

  • Move Around Quickly: Navigation Techniques
  • Find a Packet Based on Various Characteristics
  • Build Permanent Coloring Rules
  • Identify a Coloring Source
  • Apply Temporary Coloring
  • Mark Packets of Interest

4. Spot Network and Application Issues with Time Values and Summaries

  • Examine the Delta Time (End-of-Packet to End-of-Packet)
  • Set a Time Reference
  • Compare Timestamp Values
  • Compare Timestamps of Filtered Traffic
  • Enable and Use TCP Conversation Timestamps
  • Compare TCP Conversation Timestamp Values
  • Troubleshooting Example Using Time
  • Analyze Delay Types

5. Create and Interpret Basic Trace File Statistics

  • Examine Trace File Summary Information
  • View Active Protocols
  • Graph Throughput to Spot Performance Problems Quickly
  • Locate the Most Active Conversations and Endpoints
  • Other Conversation Options
  • Graph the Traffic Flows for a More Complete View
  • Numerous Other Statistics are Available
  • Quick Overview of VoIP Traffic Analysis Tools

6. Focus on Traffic Using Display Filters

  • Display Filters
  • Filter on Conversations/Endpoints
  • Build Filters Based on Packets
  • Display Filter Syntax
  • Use Comparison Operators and Advanced Filters
  • Filter on Text Strings
  • Build Filters Based on Expressions
  • Watch for Common Display Filter Mistakes
  • Manually Edit the dfilters File

7. TCP/IP Communications and Resolutions Overview

  • TCP/IP Functionality
  • When Everything Goes Right
  • The Multi-Step Resolution Process
  • Resolution Helped Build the Packet
  • Where Faults Can Occur
  • Typical Causes of Slow Performance

8. Analyze DNS Traffic

  • DNS Overview
  • DNS Packet Structure
  • DNS Queries
  • Filter on DNS Traffic
  • Analyze Normal/Problem DNS Traffic

9. Analyze ARP Traffic

  • ARP Overview
  • ARP Packet Structure
  • Filter on ARP Traffic
  • Analyze Normal/Problem ARP Traffic

10. Analyze IPv4 Traffic

  • IPv4 Overview
  • IPv4 Packet Structure
  • Analyze Broadcast/Multicast Traffic
  • Filter on IPv4 Traffic
  • IP Protocol Preferences
  • Analyze Normal/Problem IP Traffic

11. Analyze ICMP Traffic

  • ICMP Overview
  • ICMP Packet Structure
  • Filter on ICMP Traffic
  • Analyze Normal/Problem ICMP Traffic

12. Analyze UDP Traffic

  • UDP Overview
  • Watch for Service Refusals
  • UDP Packet Structure
  • Filter on UDP Traffic
  • Follow UDP Streams to Reassemble Data
  • Analyze Normal/Problem UDP Traffic

13. Analyze TCP Protocol

  • TCP Overview
  • The TCP Connection Process
  • TCP Handshake Problem
  • Watch Service Refusals
  • TCP Packet Structure
  • The TCP Sequencing/Acknowledgment Process
  • Packet Loss Detection in Wireshark
  • Out-of-Order Segment Detection in Wireshark
  • Selective Acknowledgement (SACK)
  • Window Scaling
  • Window Size Issue: Receive Buffer Problem
  • Window Size Issue: Unequal Window Size Beliefs
  • TCP Sliding Window Overview
  • Filter on TCP Traffic and TCP Problems
  • Properly Set TCP Preferences
  • Follow TCP Streams to Reassemble Data

14. Examine Advanced Trace File Statistics

  • Build Advanced IO Graphs
  • Graph Round Trip Times
  • Graph TCP Throughput
  • Find Problems Using TCP Time-Sequence Graphs

15. Analyze HTTP Traffic

  • HTTP Overview
  • HTTP Packet Structure
  • Filter on HTTP Traffic
  • Reassembling HTTP Objects
  • HTTP Statistics
  • Analyze Normal/Problem HTTP Traffic

16. Analyze SSL-Encrypted Traffic (HTTPS)

  • Examining SSL/HTTPS Traffic
  • Filter on SSL

17. Analyze File Transfer Protocol (FTP) Traffic

  • FTP Overview
  • FTP Packet Structure
  • Analyze Active Mode Connections
  • Analyze Passive Mode Connections
  • Filter on FTP Traffic
  • Analyze Normal/Problem FTP Traffic
Prerequisites
  • הקורס אינו דורש ידע מוקדם

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