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Installation Requirements: CentOS/RHEL/Fedora/Debian/Ubuntu/Raspbian/Deepin/Aliyun/Amazon/Mint Linux distributions At least 5GB of free disk space; at least 9GB free for MySQL 5.7 or MariaDB 10 At least 128MB of RAM (for 128MB low-memory VPS: Xen requires SWAP; OpenVZ requires at least 128MB of vSWAP or burstable memory). Note: do not use a 64-bit system on low-memory machines! Installing…
Firewall (firewalld) Temporarily stop the firewall systemctl stop firewalld Disable the firewall at startup systemctl disable firewalld Temporarily start the firewall systemctl start firewalld Enable the firewall at startup systemctl enable firewalld Check the firewall status systemctl status firewalld END SELinux 1 Temporarily disable SELinux enforcement setenforce 0 2 Temporarily enable SELinux enforcement setenforce 1 3…
How to Install the General Availability Release of Win11 On October 5, 2021, Microsoft released Windows 11 to general availability, bringing a host of new features; Windows 10 users who meet the hardware requirements can now upgrade. Win11 Why the upgrade matters and what’s new in the system Support for Android apps is coming, and…
Recently, Gartner released its 2020 Magic Quadrant for Wired and Wireless LAN Access Infrastructure, featuring 18 WLAN vendors worldwide. In the report, Gartner expressed strong optimism about the market’s future. It predicted that by 2023, more than 90% of enterprise campuses would connect devices through intent-based networking. In this edition of the Magic Quadrant, most…
Purpose This article describes the concepts, limitations, and some configuration examples (specifically for Cisco and HP) of link aggregation, NIC teaming, Link Aggregation Control Protocol (LACP), and EtherChannel connections between ESXi/ESX and physical network switches. Resolution Note: Many requirements must be considered before implementing any form of link aggregation. For detailed and related information about…
NTP (Network Time Protocol) is an Internet protocol that precisely synchronizes computer clocks on a network with a time source. It can keep the difference between the local clock and a reference clock within 1 millisecond. The NTP server address provided by the Fudan University Network Center is: ntp.fudan.edu.cn . Client Setup Instructions: Windows XP Double-click…
1. Communication Media and Data Links: The unit of transmission rate is bps (Bits Per Second). Strictly speaking, the speed at which signals travel through any transmission medium is constant. Therefore, even if data links have different transmission rates, the transmission speed will not fluctuate (because the speed of light and electric current is…
Introduction When learning networking, hands-on labs are unavoidable — yet most people don’t have real hardware and can’t build a real environment. Fortunately, the networking field offers a wealth of simulators that can faithfully emulate more than 90% of functionality, achieving a level of realism that is hard to distinguish from the real thing. This…
How to Use Synology’s Active Backup for Business Suite (ABB Suite) 【Introduction】 When it comes to backing up a personal PC, most people think of GHOST. GHOST was once all the rage across the country, but the year is already 8102, and GHOST — which does not support UEFI and cannot back up multiple machines…
If your DiskStation fails unexpectedly, you may need to recover the data stored on its hard drives. With just an Ubuntu Live CD and a computer, you can easily recover the data stored on the DiskStation hard drives. Please refer to the following steps. Prepare a computer with enough hard drive slots to install the…
This manual is mainly about how to create a boot disk. First, you need to install the ABB application, which requires an internet connection. If there is no internet access, find another machine that can reach the official website to download the installation package for this device, and then upload it. When installing the software,…
Foreword This article explains how to understand the Debugging Metrics information on the AC controller’s Statistics page, and how to use that information to troubleshoot and resolve common Wi-Fi faults. Introduction In controller version 5.6.x, we added a new page, Debugging Metrics, to the Statistics panel. This new page is designed to make…