A single misoperation caused the server to lose network connectivity for 3 hours, simply due to a lack of understanding of the differences in network card configuration across different Linux versions. In the field of Linux operations, incorrect network card configuration is the primary cause of server network failures. According to the 2024 Operations Failure … Read more
Those who follow me are the kindest! Only speaking for the people, using the pen to clarify the situation and measure the warmth of the world. Did you know? If you want to explore the secrets of Linux systems, here is a treasure trove of practical commands! From basic system information to hardware, disk, processes, … Read more
The specific settings are as follows. Connecting the Bypass Router (Phicomm N1) to the Network Check the current main router’s IP (what is the subnet). <pre><code class="language-plaintext">Method to check the current router's IP: 1. This is actually the backend entry of the router, usually marked on the back of the router. 2. Find any device … Read more
Table of Contents I. Theory 1. Kali Linux II. Experiment 1. Preparation for Installing Kali Linux on a Virtual Machine 2. Installing Kali Linux 3. Changing to Domestic Sources for Kali Linux 4. Setting a Static IP for Kali Linux 5. Enabling SSH Remote Access for Kali Linux 6. Remote Access to Kali Linux via … Read more
What aspects should be considered for server security defense? How to open server ports? The five key steps involved in opening server ports How to format and mount a data disk on a Linux server A historic moment! Intel and AMD announce collaboration: jointly defending the x86 ecosystem Detailed explanation of Xeon CPUs – rankings … Read more
Introduction CentOS (Community Enterprise Operating System) is one of the Linux distributions, which is free, open-source, and redistributable open-source operating system [1]. The CentOS Linux distribution is a stable, predictable, manageable, and reproducible platform, derived from Red Hat Enterprise Linux (RHEL) and compiled from source code released under the open-source (mostly GPL open-source license) [2]. … Read more
In the world of the internet, DNS (Domain Name System) acts like a massive phone book, converting human-readable domain names into machine-readable IP addresses. For Linux system administrators and network engineers, a deep understanding of how DNS works and its application in Linux systems is crucial. Let’s dive into the world of DNS in Linux, … Read more
The main function of the QoS plugin is to manage the network traffic between the local area network and the public network. By using different algorithms, it allocates priorities to different types of traffic, thereby improving overall network performance. In my long-term environment where both upload and download are fully utilized (BT, PCDN, etc.), configuring … Read more
1. Network Interfaces 1.1 Configuring IP Address yum install net-tools # Use ifconfig ifconfig eth0 192.168.1.3 netmask 255.255.255.0 # Add ipv6 address ifconfig eth1 add 240e:981:f200::100/64 # Add network card alias ifconfig eth0:0 192.168.1.10 # Use ip command to add/remove an IP ip addr add 192.168.1.4/24 dev eth0 ip addr del 192.168.1.4/24 dev eth0 The … Read more
What is a subnet mask?A subnet mask is a “translation” of an IP address; it is a 32-bit binary number used for subnet management, primarily to extend the “network ID” in an IP address within multi-segment environments. The two main functions of a subnet mask are: to divide a network into multiple subnets and to … Read more