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Through understanding the computer network, its layer-7 structure has different protocols to regulate. Based on the network type, we can divide these protocols into LAN protocols and generalized network protocols. Now let's talk about what protocols

In the ftp protocol, ftp commands use only the key content that programmers and network administrators need to know. So here we will make a simple summary of this aspect. First, let's take a look at how the command settings for security and

We should all know about VoIP. This low-cost network communication method has always been favored by everyone. As a support for this service, the security of the VoIP protocol is extremely worrying. At present, there are four major security issues

We believe that the SNMP protocol is no stranger to the use of vswitches. Therefore, we will introduce five basic vswitch SNMP configuration commands. The implementation of the SNMP configuration command of a vswitch is a common problem. How to

Speaking of networks, we have to mention servers. Among the servers, FTP servers are the most common ones. Then we will discuss the relevant knowledge. First, let's understand the basic concepts of the FTP protocol, and then parse its Common

In network security, encryption protocols have always been an important barrier for network security. Therefore, research and learning in this area are also essential for network administrators. Now let's take a look at the consultation on P2P

Previously, we handled some application problems related to the SIP Session Initiation Protocol. Many solutions are summarized. I wonder if you have mastered it. See Basic Q & A of the SIP Session Initiation Protocol. Let's add more content in this

In SNMP, we usually use SNMP trap-related definitions. Many of my friends do not know how to apply it. Today, let's analyze the relevant content. So, first, let's take a look at what Trap means. Traps can be translated into traps or traps in SNMP.

In the previous article, we introduced the definitions of IMAP and IMAP4 protocols. Everyone should have understood its basic concepts. Now let's talk about the IMAP setting method. We usually need to understand the concept of POP when explaining

As we know, today's emails have basically replaced traditional emails. E-mails can be described in texts and loaded with music images and other multimedia forms. As the network continues to innovate, mail can also carry different types of files for

Port setting is an important step in Telnet sessions. So today we will give a detailed introduction to this part. For example, if you encounter problems when sending emails through SMTP between two Microsoft Exchange 2000 Server servers, you can

Many people may misunderstand the ICMP protocol, especially in terms of security. So what do we think about ICMP security? We will discuss this issue in detail today. For more information, see the following section. 1. Security importance of

Security is a problem that we can never ignore, especially network security, which is not easy to control. Let's talk about ICMP protocol security in detail, I hope you can refer to some of the content in this article. 1. Security importance of ICMP

There are many things worth learning about in the PPP protocol. Here we will focus on the content of PPP frame relay. First, let's take a look at the basic concepts. PPP: Point-to-Point Protocol. Huawei routers are encapsulated by default and are

We know that the tcp ip protocol stack includes many protocols. So let's take a look at the functions and functions of the protocols here. Now let's make an inventory check to help you summarize it and hope it will help you. 1. bsd tcp ip protocol

We know that the establishment of PPP protocol sessions involves many authentication configurations. Now we will explain the configuration of ppp chap. In general, this article focuses on three parts: PPP overview, CHAP principle, and CHAP

Every network administrator will tell you the importance of the complete network file record. This file should record all workstation IP addresses, route configurations, firewall parameters, and so on. However, the physical layer description may not

This article gives you a detailed explanation of Several misunderstandings about the requirements of the Integrated Wiring System. Many people may not be familiar with the requirements of the Integrated Wiring System. It doesn't matter. After

The total amount of data transmitted or transmitted by a channel per unit of time is called the channel transmission volume. However, in actual application environments, all channels will suffer different losses, we call this loss a channel surplus.

The design of the Integrated Wiring System is still quite common. So I studied the problems in the design of the Integrated Wiring System, it also includes the growing power infrastructure, modular basic component structure, and advanced power