Article Introduction：###Answer 1: Step 1: Make sure the TFTP server, NFS server and DHCP server are installed on the PXE server. Step 2: Copy the CentOS7 ISO file to the TFTP server and add its path to the TFTP server. Step 3: Copy the CentOS7 installation file to the NFS server and add its path to the NFS server. Step 4: Set up the DHCP server to provide the client with the IP address, path to the TFTP server and NFS server. Step 5: Start the client. The client will load the CentOS7 ISO file from the PXE server and start installing CentOS7. ###Answer 2: PXE network installation of CentOS7

2024-06-02 comment 0  717

Article Introduction：This article explains how to set up an HTTPS server using Node.js to provide a secure connection for data transmission between the client and server, ensuring data privacy and integrity. It covers the steps involved in creating an SSL certificate and

2024-10-23 comment 0  296

Article Introduction：h3c 802.1x client: h3c 802.1x client uses client cache to optimize the principle analysis of the website Page 1/2: Many people will first want to optimize the program from the server cache. Many different server cache methods are They have their own characteristics. For example, in some projects I have participated in, server-side caching and HTTP Compression technology such as Com+/Enterprise Libiary Caching/Windows services, static files, etc. have been used depending on the cache hit rate, but client-side caching is often But it is ignored by people. Even if the server's cache makes your page access very fast, it still needs

2016-07-29 comment 0  983

Article Introduction：Uploading files on the client is a scenario often encountered in web development. No further details will be given here. What we want to elaborate here is how to upload files to other servers on the server side. This scenario is often encountered when resources need to be synchronized across multiple servers, such as uploading images uploaded by users from one server to other servers. In fact, it is not difficult to upload files on the server side. You can just use PHP's curl_init(). &lt...

2016-12-07 comment 0  1442

Article Introduction：Data can be transferred between two computers using C language to implement Socket programming. The same situation can be easily achieved by implementing User Datagram Protocol (UDP) and a simple client/server. Security - handled through encryption. Protocol - UDP Encryption - XOR Encryption Algorithm The server starts and waits for the filename. The client sends the file name. This file name is received by the server. If the file exists, the server starts reading the file and continues sending a buffer filled with the encrypted file contents until the end of the file is reached. The end of file is marked as EOF. The file will be received as a buffer until and unless EOF is received. It is then encrypted. If the file does not exist, a message "File not found" is sent. server//se

2023-09-13 comment 0  1535

Article Introduction：previous words There are many template engines for nodejs, and EJS is relatively simple and easy to use. This article will introduce EJS in detail ​ Overview EJS is a simple and efficient template language that can generate HTML markup text through data and templates. It can be said that EJS is a JavaScript library. EJS can run on both the client and the server at the same time. The client can be installed by directly importing the file, and the server can be installed using the npm package. 【Install】 ejs can be used with express framework, or directly in node/

2017-06-24 comment 0  3777

Article Introduction：AJAX is a series of web development technology client frameworks used to make asynchronous HTTP calls to the server. This article shares with you 5 top JavaScript Ajax component libraries

2018-10-08 comment 0  1981

Article Introduction：Node.js sends AJAX requests. With the development of AJAX technology, more and more front-end applications need to send asynchronous requests to the server in order to update the status, obtain new data or perform some operations. Node.js is a full stack framework that allows us to use JavaScript on the server side to be able to perform these operations in response to AJAX requests sent by the client. In this article, we will explore how to send AJAX requests in Node.js. 1. Installation depends on Node.js

2023-04-05 comment 0  1446

Article Introduction：How to upload HTML HTML is a markup language used to create and design web content. If you need to host your website or blog on a server, you need to upload HTML files to the server. In this article, we'll cover a few different ways to upload HTML files. 1. Use FTP client to upload HTML files FTP is a file transfer protocol used to upload files to the server. To use an FTP client to upload HTML files, you need the following steps: (1) First, you need to obtain a login to the FTP server

2023-05-09 comment 0  4598

Article Introduction：SSH remote client tool is essential for server operation and maintenance. Which one do we generally use? For SSH client software, we must not use the so-called green cracked version, which can easily cause server information to be stolen by Trojan backdoor software. We can choose commercial software or old free and open source SSH tools. These SSH client tools, do you like any of them? 1. xshell Multiple encodings, support custom keyboard shortcuts, custom

2024-02-29 comment 0  1166

Article Introduction：A web server is a computer or system that provides a variety of services, such as websites, email, file storage, and database management. It communicates with clients through network protocols and comes in different types, including Web servers, mail servers, file servers, database servers, and application servers. Web servers are critical to the Internet as they provide website access, email services, file sharing, database management, and application deployment. To protect server security, you should regularly update patches, use firewalls, restrict access, and conduct regular security scans.

2024-03-30 comment 0  941

Article Introduction：This article describes how to use SDXL (Secure Data Exchange Layer) locally with ComfyUI (a front-end framework). It provides detailed steps on installing the SDXL package, creating a new SDXL client, connecting to a remote server, sending and receiv

2024-09-02 comment 0  647

Article Introduction：FTP server usage: 1. Install an FTP server software, such as FileZilla Server, vsftpd, ProFTPD, etc.; 2. After the installation is completed, you need to set the listening port of the FTP server and set the access rights of the FTP server, including which users are allowed to access and which ones are allowed File upload and download, etc.; 3. Create FTP users. The FTP server allows the creation of multiple users and assign different permissions to each user. 4. Set the user's login permissions and ensure that these users have FTP access permissions.

2023-10-13 comment 0  2211

Article Introduction：Introduction to how to use Swoole to implement WebSocket server and database interaction: WebSocket is a full-duplex communication protocol based on the TCP protocol, which can establish real-time two-way communication between the client and the server. Swoole is a PHP extension that can easily implement high-performance asynchronous and concurrent programming. In this article, we will introduce in detail how to use Swoole to build a WebSocket server and interact with the database. Step 1: Install Swool

2023-11-07 comment 0  1383

Article Introduction：With the advent of the cloud computing era, more and more enterprises are adopting cloud computing technology to run applications. Most applications need to communicate through network protocols, and this communication needs to be encrypted to ensure data security. The SSH (Secure Shell) protocol is an encrypted network protocol used to securely transfer data between computers. libssh is an open source SSH client and server-side implementation library that can be used to develop SSH client-side and server-side applications. This article will introduce the golang of libssh

2023-05-10 comment 0  582

Article Introduction：Nginx is a widely used web server and reverse proxy server. While providing high-performance web services, Nginx also has good security performance. In the configuration of Nginx, the correct configuration of HTTP response headers and security settings is one of the important factors to ensure the security of Nginx. This article will introduce Nginx's HTTP response headers and security settings, and provide some practical experience. 1. HTTP response headers HTTP response headers are some HTTP headers returned by the server when responding to client requests.

2023-06-10 comment 0  2858

Article Introduction：MySQLSSL connection is a MySQL database connection method encrypted through the SSL protocol, which can provide more secure data transmission. In the network architecture, MySQL SSL connection can be implemented in a variety of ways, the most common of which is the network architecture based on the TCP/IP protocol. In a network architecture based on TCP/IP, the MySQL SSL connection can be achieved through the following steps: The first step is the handshake process between the client and the server. The client sends a connection request to the server and will automatically

2023-09-10 comment 0  922

Article Introduction：Servers in computer networks refer to computers or devices that provide services. They are responsible for processing and managing network requests, communicating with clients through network connections, and providing various services, such as file storage, website hosting, email, Database management, application running, etc. The design and configuration of the server needs to consider factors such as performance, security, reliability, and scalability to meet the needs of a large number of clients. The server can be a physical device or a virtualized entity.

2023-09-07 comment 0  2374

Article Introduction：Recently, I have been researching a file system that requires remote installation of software on the client computer and access without an SSH password. In addition, it is necessary to remotely transfer files to the client computer. It is inconvenient to enter the root password every time, so I thought of using sshkey to generate the public key and private key. key to verify without having to enter the root password every time. Server architecture: System: CentOS6.5x64 Control terminal A: 192.168.0.150 Remote host B: 192.168.0.151 Principle: Use sshkey to generate public key and private key. The key is equivalent to a key, and the public key is equivalent to a When locking a door, of course we hold the key to unlock it. In the same way, we put the key on the local server, which is server A, and put the public key on the remote server.

2024-01-04 comment 0  1095

Article Introduction：With the popularity of mobile Internet and multi-terminal devices, website access methods and device types are becoming more and more diverse. In order to ensure the stability and security of the website, the website server needs to perform a reverse proxy and also needs to restrict different devices and browser types. This requires the use of ACL configuration based on device and browser fingerprints in the Nginx reverse proxy. What is Nginx reverse proxy? Nginx reverse proxy is a proxy method in which the server acts as a client to access the resources of other servers. To put it simply, on the client side and

2023-06-10 comment 0  1199