Articles about networking | UserComp.com

Hardwired VLAN Not Working on TP-Link Omada: A Tech Support Guide

Having trouble with a hardwired machine that's not assigned an IP on a VLAN other than the default one in your TP-Link Omada network? This guide will help you troubleshoot and find a solution.

Troubleshooting Local Server Access Issues on Your Network

Having trouble accessing your local server on your network? Learn how to troubleshoot and resolve the issue, even if you can't access it using a public IP. This guide covers common causes and solutions for server access issues on Technicolor setups.

Match Traffic Destination MAC using nftables for Remote IPv6 LAN Access with Dynamic IP

This article explains how to match traffic destination MAC using nftables for remote IPv6 LAN access with dynamic IP. If you want to use IPv6 remotely to access a machine with a non-fixed IP address, this guide will help you set up nftables rules to match traffic using MAC addresses instead. Learn how to configure your network for secure and seamless remote access.

Troubleshooting Unexpected Behavior with Ethernet Flow Control on a Tech Support Site

Having trouble with a 100Mbps switch connected to three 100Mbps cameras and a monitor? Learn how bandwidth limitation due to cable use can be solved without altering the cable. This article provides a solution to the problem and invites the audience to read more on the tech support site.

Windowsfaststartup/hybridshutdown-DHCPrequest

In this article, we will discuss the issue where Windows fast startup or hybrid shutdown prevents DHCP requests from being sent or received. We will explore a scenario where a pfSense device is configured as a DHCP relay and a DHCP server in hot-standby mode, and some users experience problems.

Ethernet Flow Control Unexpected Behavior: Troubleshooting Bandwidth Problems

Experiencing bandwidth problems on a 100Mbps switch connected to three 100Mbps devices? Let's troubleshoot the unexpected Ethernet Flow Control behavior.

Bypass VPN IPv6: A Comprehensive Guide for Tech Support

Learn how to bypass VPN IPv6 on your Linux, Windows, or MacOS system. Our step-by-step guide provides a solution for those who need to access IPv6 addresses while connected to a VPN. Follow our SEO-optimized article and improve your tech support skills today.

Troubleshooting Home Server: Suddenly Unreachable Over Internet

Having trouble accessing your home server and its services, such as Nextcloud or Navidrome, over the internet? This article covers potential causes and steps to troubleshoot a home server that suddenly became unreachable, focusing on configurations behind an Nginx reverse proxy.

How to Set a Static IP Address that Changes Daily on Server zx86.org

Learn how to set a static IP address that changes daily on your server at zx86.org. This guide covers the basics of network interface configuration in Linux and can help you avoid the hassle of manual IP changes. Make sure to secure your server and optimize your website with Cloudflare tunnel hosting. Read more for detailed steps.

How to Set Up a Wireless Access Point in Kali Linux

This article provides a step-by-step guide on how to set up a wireless access point in Kali Linux. Learn how to configure your network interfaces, create a new access point, and secure your wireless network. If you're a Linux user looking to expand your network capabilities, this article is for you. Read more on our tech support site.

Assigning Static IP to a Device on DHCP Range Network

Learn how to assign a static IP address to a device on a DHCP range network without reserving it on the DHCP server, preventing the device from losing its IP address upon disconnection.

Can REMnux Serve Multiple Web Pages with Different IP Addresses?

This article explores the possibility of a single VM (in the REMnux case) serving multiple different web pages with different IP addresses, using a single interface with accept-all-ips and fakedns activated.

What Happens When a Second IPadress Adapter Collides with a Connected Device?

This article discusses the issue of custom-made ethernet devices that communicate using static IP addresses, and how debugging can sometimes result in IP address conflicts with connected devices. Learn more about the causes and solutions to this problem.

Funnel Local Network Traffic Through a Local Cache Proxy

In this tech support article, we'll discuss how to funnel local network traffic through a local cache proxy. By doing so, devices connected to the local network can access the Internet more efficiently. Learn how to set up a local cache proxy and improve network performance.

Accessing Files Stored on USB Drive Connected to Second Router with Devices Connected to First Router

Learn how to access files stored on a USB drive connected to a second router while devices are connected to the first router. This guide covers methods for Linux, Windows, and MacOS.

Setting Up Local Network File Sharing with Two Routers as a Wi-Fi Extender

Learn how to set up local network file sharing with two routers, one acting as a Wi-Fi extender to improve Wi-Fi signal coverage and the other for regular network usage.

Finding Specific Data in Wireshark Capture

Learn how to find specific data in a Wireshark capture. This article will guide you through the process, ensuring you can confirm the data you need.

Can't Ping Ubuntu VM Connected to VPN Provider: A Troubleshooting Guide

Having trouble pinging your Ubuntu virtual machine (VM) connected to a VPN provider? Learn about the possible causes and troubleshooting steps to take, including forwarding LAN traffic through a VPN tunnel using strongSwan VPN server.

Expanding Local Subdomains withDNSMasq: A Guide for Tech Support

Learn how to configure DNSMasq to structure local nameservers based on rooms in your home. This guide is perfect for tech support professionals seeking to expand their network subdomains.

Hyper-V: Accessing LAN Devices on Host

This article discusses how to access LAN devices from a Hyper-V host, specifically when running Ubuntu VMs hosting a web service. The guide will provide steps to configure the network settings for seamless communication between the host and the VMs.

L7 Port Forwarding vs L3 Destination NAT for Internet

Exploring the differences between L7 port forwarding and L3 Destination NAT in the context of internet connectivity. Understanding when to use port forwarding for local scenarios and when L3 NAT is a better choice.

Connecting Shop One to a Domain Controller Located Elsewhere

This article will guide you through the process of connecting Shop One to a domain controller located elsewhere. We will provide steps for both Linux and Windows systems to ensure a smooth connection.

Configuring a Ubuntu Server with Two Network Cards: DHCP and Static IP

This article provides a step-by-step guide on how to configure a Ubuntu server with two network cards, one using DHCP and the other with a static IP address. Learn how to set up and manage your server's network interfaces effectively.

Want to Access Your Home Server Anywhere? Catch the MAC Address Device!

Learn how to send a file from one device to another, even when connected to different networks. Understand the role of MAC address and follow the steps to access your home server from anywhere.

Pinging One Interface on Linux

Learn how to ping one interface on a Linux system, using examples with eth0 and eth1 interfaces.

How to Set Up a StrongSwan Local VPN Server with Private and Public Subnets

Learn how to set up a StrongSwan local VPN server with two subnets, one private and one public, and a proxy host with two network interfaces connected to both subnets. The private subnet has no internet access, while the public subnet does. This tutorial will guide you through the process of creating a secure and private network environment.

What Causes Junk Characters to Appear in Ethernet (Default Switch) Device Name?

If you've encountered junk characters in your Ethernet (Default Switch) device name, this article can help. We'll explore possible causes and provide solutions to ensure your device names display correctly. Read more to learn how to maintain a well-organized network environment.

Could blocking access to hosted service ports, including LAN network, affect service availability?

Exploring the potential impact of blocking access to hosted service ports on service availability, focusing on Linux systems and LAN networks.

Connecting Docker Container to Multiple Bridge Networks

This article provides a solution for connecting Docker containers to multiple bridge networks. The problem arises when the latest updates are applied, causing the previous connection method to stop working. This guide explains how to overcome this issue.

Could Blocking Access to LAN Hosted Service Ports Except Local Devices Be the Reason for Unavailability?

Trying to set up a local service port, but encountering issues with device availability on port 9999? Learn about the potential impact of blocking LAN hosted service ports and how it may be affecting your setup. Read more to find a solution on our tech support site.

Troubleshooting: No Internet on QEMU VM despite Connection Present

Having trouble connecting to the internet on your QEMU VM despite having a present connection? Learn how to troubleshoot this issue in this tech support article. We'll cover common causes, such as incorrect network configuration and firewall settings, to help you get your Ubuntu Server 24.04 up and running with a connected USB wifi adapter.

How to Obtain PPPOE Password on ZTE F670LV9.0 Router

In this tech support article, we will guide you through the process of obtaining the PPPOE password for your ZTE F670LV9.0 router. If you have tried opening the USB backup file (usb.bak) on 192.168.1.1 page but didn't receive anything, don't worry - we have a solution for you. Read more to find out how to retrieve your PPPOE password.

Maximizing Powerline Adapter Connection Speeds for 1 Gbps Fiber Internet

If you have 1 Gbps fiber internet and want to extend it to other rooms or areas of your house using Powerline adapters, you might only get around 900-950 Mbps when connecting your PC directly to the router. Here's how to maximize your Powerline adapter connection speeds for 1 Gbps fiber internet.

Local Devices Refuse to Connect to Newly Installed Windows Servers: A Tech Support Guide

Having trouble connecting local devices to your newly installed Windows servers? Learn about the common causes and solutions to this issue in our SEO-optimized tech support guide. Read more to find out!

Explicitly Dropping IPv6 Packets with ip6tables - A Tech Support Guide

Learn how to explicitly drop IPv6 packets using ip6tables, a powerful networking tool for Linux systems. This guide covers the basics of using ip6tables to manage IPv6 traffic and enhance network security. Follow along with the example command and tcpdump output to see packets being dropped. If you're a tech support professional or a network administrator, this article is for you.

Understanding DHCP and How It Works with Direct Ethernet Link for Hosts

If you've ever plugged an Ethernet cable from your desktop to your laptop for faster, direct file transfer and run Linux Mint while connected to WiFi (which may be irrelevant), this article provides a brief overview of DHCP and its role in direct Ethernet link for hosts. Learn more about this networking fundamental on our tech support site.

How to Reroute WireGuard Traffic from PC to VPS and VPN Server

In this article, we will discuss how to reroute WireGuard traffic from a PC to a VPS server and a VPN server. This guide will help you achieve seamless traffic routing between three WireGuard peers: PC, VPS server with full access, and VPN server. Learn how to configure WireGuard to suit your networking needs.

Separate ARP Tables for QEMU Guest WiFi in a Virtual LAN

In this tech support article, we will discuss how to create separate ARP tables for QEMU guest WiFi in a virtual LAN. This is useful when you have a physical WiFi device in NAT mode, but you need a guest ARP table to avoid seeing non-unique MAC addresses. Follow these steps to set up separate ARP tables for your QEMU guest WiFi.

Connection to Port 443 Denied: Netstat Suggests an Open Issue?

Users reporting access to their local development website (e.g., https://castle.accessed) is being denied, despite netstat suggesting an open connection on port 443. This article will discuss possible causes and solutions for this issue on Windows 10 with an Apache server.

Securely Sharing Media between Two Non-LAN Laptops: A Guide for First-time Users

This guide is designed for first-time users who are not network-savvy and need to share a massive amount of images and media securely between two non-LAN laptops, one running Windows 11 and the other a new Mac. Learn how to purchase and set up a NAS device for seamless media sharing.

Understanding 'No Reachable Authority' Delegation in DNS

Learn about 'No Reachable Authority' delegation in DNS, which occurs when a domain's child zone does not have NS records served correctly by its DNS servers. This issue often arises when delegating a subdomain, such as home.example.com, to external DNS servers. Get insights on how to troubleshoot and resolve this problem.

UDP Server Cannot Send Response Back to Sender Via Router: A Troubleshooting Guide

This article provides a solution to the issue where an UDP server cannot send responses back to the sender through a router. The article covers the causes and steps to resolve this problem on various operating systems such as Linux, Windows, and MacOS.

Sharing One WAN Source with Two WiFi Routers: Different LANs, Different Passwords

Learn how to share one WAN source with two WiFi routers, each having different LANs and passwords. This guide covers steps for both Linux and Windows based routers.

How to Isolate WireGuard Networks on a Small Linux VPS Host with Multiple VPNs

Learn how to isolate WireGuard networks on a small Linux VPS host with multiple VPNs. This guide covers setting up separate WireGuard interfaces and unique IP address ranges for each VPN, improving security and privacy. Follow these steps to optimize your VPN experience on a Linux VPS.

Setting Up Port Forwarding on Ubuntu: A Comprehensive Guide

Having trouble setting up port forwarding on your Ubuntu server? This guide will walk you through the process, providing clear and concise instructions to help you get it right. Learn about the benefits of port forwarding and how to configure it for your specific needs. Read more to find out how to improve your network's security and functionality.

Setting up Static Routing on Keenetic GIGA Router for Two Different Networks

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