Network Troubleshooting with Wireshark培训

课程编码

wireshark

课程时长

21 小时 通常来说是3天,包括中间休息。

要求

  • An understanding of TCP/IP networking principles

课程概览

网络数据包分析是一种用于实时查看通过网络接口发送和接收的原始数据的技术。这对于排除网络配置和网络应用程序问题非常有用。 Wireshark是一个免费的开源数据包分析器,用于解决此类网络问题。

在这个由讲师指导的实时培训中,参与者将学习如何使用Wireshark来排除网络功能以及不同网络应用程序的性能。参与者将学习网络故障排除原则和实践技术,以捕获和分析不同客户端和服务器之间的TCP / IP请求和响应流量。

在培训结束时,参与者将能够:

  • 分析不同条件下各种环境下的网络功能和性能
  • 确定不同服务器应用程序的实例是否可以正常运行
  • 确定网络性能问题的主要来源
  • 确定并解决TCP / IP通信中性能问题的最常见原因

听众

  • 网络工程师
  • 网络和计算机技术人员

课程 格式

  • 部分讲座,部分讨论,练习和繁重的实践练习

注意

  • 要申请本课程的定制培训,请联系我们安排。

Machine Translated

课程大纲

Introduction

  • Wireshark -- not just a last-resort tool

Overview of Network Troubleshooting Concepts

  • Root cause analysis

Installing Wireshark

Overview of Wireshark Features

  • Navigating the UI interface

Capturing Traffic in the Test Environment

  • Selecting the network interface
  • Capture packets on wired and wireless networks

Analyzing the Logs

  • Inspecting the HTTP packets
  • Viewing back-and-forth TCP streams
  • Saving the log for offline inspection

Analyzing Connection Speed Issues When Connecting to a Particular Website

  • Using filters
  • Seeing the statistics

Analyzing by Traffic Type

  • DNS, ARP, IPv4, IPv6, ICMP, UDP, TCP, and HTTP/HTTPS
  • Consistently slow connections over prolonged periods of time

Checking Response Times

  • Setting delta time columns

Checking for Machines Infected with a Virus

  • Inspecting ARP traffic

Inspecting Sources of Network Traffic

  • Intel ANS probe
  • Broken/misconfigured software (network flooding)

Pinpointing Performance Issues

  • Creating statistical charts and graphs
  • Setting colors in Wireshark
  • Filtering traffic
  • Using Wireshark Expert System and TCP/IP Resolution Flowchart

Troubleshooting Connections within a Secured Network Environment

  • Proxies, firewalls and clients

Configuring Wireshark for Optimal Performance

  •  Non-intrusive analysis

Troubleshooting

Summary and Conclusion

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