ARPANET

Differences Between Cybersecurity and Embedded Systems

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Differences Between Cybersecurity and Embedded Systems

1. What is Cybersecurity? Cybersecurity includes network software security, network device security, and network information security, which refers to protecting the hardware, software, and data in network systems from accidental or malicious changes, destruction, or leakage, ensuring that the system can operate reliably, continuously, and normally, with uninterrupted network services. For example, certain official websites … Read more

One Minute, One Diagram: Mastering TCP/IP

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One Minute, One Diagram: Mastering TCP/IP

High-definition image, sourced from the internet. Suggestions: 1) View on PC 2) If viewing on mobile, please click the image to zoom Application Layer, Presentation Layer, Session Layer: HTTP, FTP, SMTP, POP3, encryption and decryption, compression and decompression, session management Transport Layer: TCP, UDP, ensuring data segments arrive effectively Network Layer: IP, ICMP, RIP, packet … Read more

Detailed Summary of TCP/IP Protocol

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Detailed Summary of TCP/IP Protocol

Author: Gentle But Ruthless Character Original Link: http://blog.csdn.net/qq_25827845/article/details/66975129 Please indicate the source when reprinting TCP/IP Protocol TCP/IP is not a single protocol, but a general term for a protocol suite. It includes the IP protocol, ICMP protocol, and TCP protocol. Here are some key points to note: Internet Address: This is the IP address, generally … Read more

Summary of TCP/IP Basics

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Summary of TCP/IP Basics

When it comes to the protocols we encounter most in computer networks, we cannot ignore the TCP/IP protocol. The TCP/IP protocol is also the most famous protocol on the Internet, so let’s discuss the TCP/IP protocol together. Historical Background of TCP/IP Before the TCP/IP protocol existed, back in the 1960s, many countries and regions recognized … Read more

Nine Commonly Used Network Commands

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Nine Commonly Used Network Commands

1. Ping Command Ping is a frequently used utility primarily used to determine network connectivity. This is useful for determining whether the network is correctly connected and the status of the network connection. In simple terms, ping is a testing program; if the ping runs correctly, it generally rules out faults in the network access … Read more

Network Security: Nine Common Network Commands

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Network Security: Nine Common Network Commands

1. Ping Command The ping command is a frequently used utility primarily used to determine network connectivity. It is useful for determining whether the network is properly connected and the status of the network connection. Simply put, ping is a testing program. If ping runs successfully, it generally rules out faults in the network access … Read more

The 6 Most Useful Network Commands for Troubleshooting

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The 6 Most Useful Network Commands for Troubleshooting

Many low-voltage engineers often encounter network faults in projects that require detection and localization of the fault points through various commands. By using network commands, the troubleshooting work can achieve significant efficiency. Let’s review and learn anew! 1. Ping Command (Internet Packet Explorer) The ping command is a highly utilized utility primarily used to determine … Read more

Common Network Commands for Low Voltage Applications

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Common Network Commands for Low Voltage Applications

9 Common Network Commands, Very Practical! 1. ping Command PING (Packet Internet Groper), the Internet packet explorer, is a program used to test network connectivity. Ping operates in the TCP/IP network architecture at the application layer, primarily sending ICMP (Internet Control Message Protocol) Echo request messages to a specific destination host to test whether the … Read more

Summary of Common Computer Network Interview Questions

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Summary of Common Computer Network Interview Questions

Author: Shui De Original: http://blog.csdn.net/jxh_123/article/details/40316081 1. OSI, TCP/IP, and Five-Layer Protocol Architecture OSI Layers (7 layers): Physical Layer, Data Link Layer, Network Layer, Transport Layer, Session Layer, Presentation Layer, Application Layer. TCP/IP Layers (4 layers): Network Interface Layer, Internet Layer, Transport Layer, Application Layer. Five-Layer Protocol (5 layers): Physical Layer, Data Link Layer, Network Layer, … Read more