practical packet analysis using wireshark to solve real world network problems phần 10 doc

... while Wireshark comes with documentation, there’s not a whole lot of information to show you how to use it in real- world scenarios. Practical Packet Analysis shows you how to: • Use packet analysis ... how can those packets help you to better understand what’s going on under the hood of your network? Practical Packet Analysis shows how to use Wireshark...

Ngày tải lên: 14/08/2014, 14:20

... into the Wire 86 Analysis 87 Summary 88 Inbound FTP 88 What We Know 88 Tapping into the Wire 88 Analysis 88 Summary 90 PRACTICAL PACKET ANALYSIS Using Wireshark to Solve Real- World Network Problems by ... 106 Double Vision 107 What We Know 107 Tapping into the Wire 107 Analysis 107 Summary 109 Did That Server Flash Me? 109 What We Know 109 Tapping in...

Ngày tải lên: 14/08/2014, 14:20

... the packet level, the more we can control our network and solve problems. This is the world of packet analysis. This book dives into the world of packet analysis headfirst. You’ll learn what packet ... able to imple- ment advanced packet analysis techniques that will help you solve even the most difficult problems in your own network. What Is Packet Anal...

Ngày tải lên: 14/08/2014, 14:20

... the Packet List pane and choose Mark Packet from the pop-up. Or, single click a packet in the Packet List pane and press CTRL-M to mark it. To unmark a packet, toggle this setting off using ... only marked packets when saving packet captures.) There are several reasons you may want to mark a packet, including being able to save those packets separately, or to be a...

Ngày tải lên: 14/08/2014, 14:20

... and the Wireshark program. In order for a protocol to be supported by Wireshark, it must have a dissector built into it. Wireshark uses several dissectors in unison to interpret each packet. ... want to forgo the name resolution feature in order to conserve system resources. Protocol Dissection A protocol dissector allows Wireshark to break down a protocol (ICMP, for exa...

Ngày tải lên: 14/08/2014, 14:20

... First Packet Capture In order to get packet data into Wireshark, you’ll perform your first packet capture. You may be thinking, “How am I going to capture packets when nothing is wrong on the network? ” ... understanding of packet sniffer placement in a variety of different network topologies. We will look at various real- world network setups as we determine the best...

Ngày tải lên: 14/08/2014, 14:20

... that the first packet in the capture file is your standard Echo (ping) request packet (also known as an ICMP type 8 packet) from 10. 2 .10. 2 to 10. 4.88.88, as shown in Figure 7-5. To verify this, ... in response to your ping. 80 Chapter 7 Figure 7-5: A standard ping request from 10. 2 .10. 2 to 10. 4.88.88 Examining packet 2 in Figure 7-6, you can see that it too is not...

Ngày tải lên: 14/08/2014, 14:20

... with Wireshark, packet analysis, and network troubleshooting in general. The rest of the book will be written in much the same format but will focus on different areas of real- world packet analysis. 100 ... your network. Summary Packet analysis is often a great tool to use when you must prove that you actually do know what you’re doing. Not only do you sometimes have...

Ngày tải lên: 14/08/2014, 14:20

... to a routing problem. Packet 1: Packet 2: 106 Chapter 8 Applying our newfound knowledge of TTL to our current situation, we can immediately see a problem with the first packet sent. This packet ... what traffic to a printer looks like. As you can see in Figure 9-3, our server, 10. 100.16.15, is receiving a massive influx of SPOOLS packets from a client within our network,...

Ngày tải lên: 14/08/2014, 14:20

... music! Security-based Analysis 131 Tapping into the Wire Some hackers want to capture the passwords of network administrators to gain administrative access to a network. Others simply want to bring a network to ... Client (Monitoring) Monitor Mode 126 Chapter 9 Figure 9-7: Packet 10 shows an attempt to log in to the admin account. This is a great opportunity to us...

Ngày tải lên: 14/08/2014, 14:20