In the previous code, a C# .net TcpClient implemented the full-duplex communication protocol_tcpclient protocol_Green Lemon 676’s Blog-CSDN Blog We have implemented the heartbeat of TCP and introduced the full-duplex communication protocol. Today we will take you to understand what TCP packet immersion is and how TCP prevents packet immersion. So let’s make a long story […]
Tag: packet
How to use fiddler to capture mobile phone packets and filters!
1. The difference between Fiddler and other packet capture tools 1. Although Firebug can capture packets, it is not powerful enough to analyze the detailed information of http requests. The function of simulating HTTP requests is not enough, and Firebug often requires “no refresh modification”. If the page is refreshed, all modifications will not be […]
iOS in-app packet capture, NSURLProtocol intercepts network requests within APP
Foreword When developing, you need to obtain data in the SDK. Since you cannot see the code, you can only monitor all network request data and intercept the corresponding return data. This can be achieved through NSURLProtocol, and can also be used to interact with H5. 1. NSURLProtocol intercepts requests 1. Introduction to NSURLProtoco Official […]
Packet capture and analysis of mysql traffic under Linux C/C++ (protocol analysis)
The MySQL communication protocol is a stateful protocol mainly used for communication between MySQL clients and servers. This protocol is implemented in MySQL client connectors (such as Connector/C, Connector/J, etc.), MySQL Proxy, and master-slave replication. Features of the protocol include support for SSL, compression and authentication. The interaction process between the MySQL client and the […]
[Linux Network] Linux network packet capture tool tcpdump
1. Introduction to tcpdump tcpdump is a Linux network packet capture tool. It allows users to intercept and display TCP/IP and other data packets sent or received over the network connection to the computer. tcpdump is suitable for most Unix-like operating systems (such as linux, BSD, etc.). 2. Installation & Usage Instructions 1) Installation $ […]
[App packet capture prompts network abnormality, how to solve it?
Background When you test the App, you want to use Fiddler/Charles and other tools to capture packets and check the data of the https request. You will find that most Apps prompt network exception/no data and other information. Take “Shell Housing Search” as an example: 455 x 705 The request seen in Fiddler is like […]
Packet Tracer – VLAN configuration
Address allocation table Equipment Interface IP address Subnet Mask VLAN PC1 NIC 172.17.10.21 255.255.255.0 10 PC2 NIC 172.17.20.22 255.255.255.0 20 PC3 NIC 172.17.30.23 255.255.255.0 30 PC4 NIC 172.17.10.24 255.255.255.0 10 PC5 NIC 172.17.20.25 255.255.255.0 20 PC6 NIC 172.17.30.26 255.255.255.0 30 Target Part 1: Verify Default VLAN Configuration Part 2: Configuring VLANs Part 3: Assign VLANs […]
Packet Tracer – Configure initial switch settings
Goals Part 1: Verify Default Switch Configuration Part 2: Configure basic switch configuration Part 3: Configure the MOTD banner Part 4: Save Configuration File to NVRAM Part 5: Configure S2 Background/Scene In this exercise, you perform basic switch configuration tasks. You want to protect access to the command line interface (CLI) and console ports using […]
Use of network traffic analysis gopacket library in go
1. Preface Recently, the author wants to learn how to use go to construct tcp data packets. This involves the use of the gopacket library, so here are some learning records about the gopacket library. 2. Introduction gopacket is a network packet processing library in the Go language. It provides a convenient API to read, […]
[Packet capture analysis] Using ChatGPT decryption to restore a certain software login algorithm to bypass the mobile phone verification code login
Article directory Foreword achieve effect Finished product advertise Packet capture analysis 1. Locate encrypted files 2. Edit JS `enable local replacement` Transcoding with Chatgpt Get scheduled task id Simulate data requests at last Foreword Because station C has too many copyrights, all crawler-related information is recorded and will not be in-depth! Today I found that […]