Articles about networking | UserComp.com

How to Bind Docker Containers to Specific VLANs on Ubuntu

Learn how to bind Docker containers to specific VLANs on Ubuntu using the built-in networking capabilities of Docker. Improve security and segmentation of your containerized applications. Read more to get started.

NIC Change VM (Ubuntu Hyper-V) Default Switch - External Switch Lost Internet Connection

This article discusses a problem where changing the NIC external switch in a Ubuntu VM on Hyper-V results in the loss of internet connection. It provides a solution to this issue.

Troubleshooting SMBC Non-Standard Port Connection

Experiencing issues when connecting to SMBC using a non-standard port? Learn how to troubleshoot and resolve the problem if you are unable to connect using port 4445 and need to use the alternative port 445 instead.

Smart Host Forwarding Issue - IPv4 vs IPv6

This article discusses a problem where Sendmail is configured to forward to a Smart Host, but the Smart Host DNS advertises an IPv4 address. However, Sendmail encounters an issue because the email looks like it has an IPv6 address. We'll explore the reason behind this decision and how to resolve the issue.

Setting Up Guest WiFi on OpenWRT using LuCI

Learn how to set up a guest WiFi network on an OpenWRT router using the LuCI web interface. This guide provides step-by-step instructions for configuring your OpenWRT device as an access point or switch, and connecting it to another router for internet access.

Understanding mDNS Packets with Subnet Mask 255.255.255.255

This article explains how mDNS packets function when a subnet mask of 255.255.255.255 is used, addressing the question of whether it isolates devices on a local network from receiving mDNS messages.

Understanding 'Connection' and 'Session' in Networking

This article explains the terms 'Connection' and 'Session' in networking, with examples and differences between them. Learn how they work together in establishing and maintaining network communication.

Frequent LAN Connection Issues: A Comprehensive Guide

This article provides a comprehensive guide to troubleshooting frequent LAN connection issues. Whether you're using Linux, Windows, or MacOS, we've got you covered. Learn how to identify and fix common problems that cause LAN connections to disconnect and reconnect.

Can't Start Network on Fedora 9: How to Find and Edit ETH0 Hardware Address

Having trouble starting the network on Fedora 9? Learn how to find and edit the ETH0 hardware address to get your network up and running. This SEO-optimized article will guide you through the process, even if your network card is not showing up. Read more for expert tech support.

Bypassing Netgear Router DNS for Consistent Internet Speeds

Learn how to bypass the DNS of a Netgear Nighthawk router to consistently achieve high-speed Internet connections.

Setting up MacBook Pro M3 with Netgear Nighthawk 4200 PFSense Firewall Router

This article provides step-by-step instructions on how to set up a MacBook Pro M3 with a Netgear Nighthawk 4200 PFSense firewall router. Follow the guide to ensure a seamless connection.

How to Move Back Available Networks After Forgetting a Network in Settings?

Having trouble moving back to the list of available networks after forgetting a network in your device's settings? This article provides a simple solution for both Linux, Windows, and MacOS users. Learn how to regain access to available networks and get back online. Read more for detailed tech support.

Connecting ESXi 7.0.3 VM to Physical Network on VMware Workstation Pro 16.2.5

Learn how to connect an ESXi 7.0.3 virtual machine to a physical network on VMware Workstation Pro 16.2.5. Follow these step-by-step instructions to bridge and replicate the physical network connection state.

Troubleshooting Strong Swan Lancom Device Connection Issues

Having trouble connecting your Strong Swan Lancom device? Learn how to troubleshoot and resolve common connection issues with this comprehensive guide. Don't let network problems slow you down - read more to find a solution.

VirtualBox Debian 12 Guest Bridge Can't Ping LAN Box

This article addresses a problem where a Debian 12 guest on VirtualBox can't ping a LAN box. It provides solutions for this issue, focusing on configuring the network settings in VirtualBox and the Debian guest.

Automate PowerShell to Toggle PoE on HPE 1950 JG962A Ports

Learn how to use PowerShell to automate the toggling of Power over Ethernet (PoE) on specific ports of the HPE 1950 JG962A switch. This tutorial is perfect for those familiar with PowerShell who are looking to build their skills and create useful tools for network management.

Troubleshooting Sudden Network Unreachability for Certain Devices

Experiencing sudden network unreachability issues with certain devices, such as laptops or phones, can be frustrating. This article will provide some guidance on potential causes and solutions. Try using keywords like 'network unreachability' and 'certain devices' in the abstract to optimize SEO.

Running an FTP Server on a Home Server with Static IP Address Accessible on the Internet

Learn how to access an FTP server on a home server with a static IP address when changing internet providers and receiving a new IP address, such as a 5G internet provider.

Troubleshooting Virtualized macOS Windows Host Connection Issue in Ventura

Having trouble with Windows host connection in a virtualized macOS Ventura setup using VMware and Bridge network? Learn how to troubleshoot the issue with our step-by-step guide. Improve your tech support skills and learn about possible solutions.

Blocking Range of IP Addresses on MacOS

Learn how to block a range of IP addresses on your MacOS system for enhanced security. This article provides step-by-step instructions for blocking IP addresses effectively.

Windows and Smart TV on Different Subnets

Learn how to connect a Windows notebook and a Smart TV on different subnets. This article provides a solution for a common networking issue.

Configuring NFTv6 Duplex Prefix Rewriting in OpenWRT 24.10 for Multiple Internet Providers

In this article, we'll show you how to extend a 3GPP WAN interface/64 prefix via PDN in OpenWRT 24.10 using nftables v1.1.1 and NPTv6. This will enable you to configure multiple Internet providers and optimize your network for better performance. Read more to learn how to implement this technology on your OpenWRT system.

Windows 11 Pro PC Connects to Local Private Network but No Internet Connection

This article provides solutions for Windows 11 Pro PCs that can connect to a local private network (LAN) but fail to connect to the internet. The issue is often caused by the Auto-configure IP Address using DHCP generating an IPv4 address not suitable for internet access.

Understanding Curl Interface with SO_BINDTODEVICE Tunnel Interfaces

Learn how to perform operations using specified interfaces with Curl and SO_BINDTODEVICE tunnel interfaces. This article provides a comprehensive guide on how to use these interfaces for better network control.

PMTU Calculation Using TCP MSS: Reliable for Asymmetric Paths?

Explore the reliability of using TCP MSS for Path MTU (PMTU) calculation on asymmetric network paths. Learn about potential issues and alternatives for accurate PMTU discovery in complex network topologies.

Configuring Cross-Network Connections for Your Home Network: A Comprehensive Guide

Learn how to configure cross-network connections for your home network with this comprehensive guide. Boost your network's performance and expand its capabilities. Read more to get started.

MacBook Air on macOS Sequoia Wirelessly Connects to DHCP Server with Two Different MAC Addresses, Getting Two IP Addresses

Having trouble with your MacBook Air on macOS Sequoia connecting to your WiFi router's DHCP server and receiving two IP addresses instead of one? This can be caused by using two different MAC addresses. In this article, we'll explore the reasons behind this issue and provide some solutions to help you get back up and running.

Hosting Dedicated Game Server with IPv4 CGNAT: Challenges and Solutions

Hosting a dedicated game server with an IPv4 address behind a Carrier-Grade NAT (CGNAT) can be challenging. However, with the right solutions, it is possible. This article explores the issues and provides guidance on bridging the gap for a seamless gaming experience.

Packet Forwarding Interfaces (Linux/Raspberry Pi)

A Raspberry Pi running as an access point allows Swift network connection for computers with no problem. Additionally, a sensor is connected via Ethernet to the Raspberry Pi, but the issue is that the Raspberry Pi does not forward packets.

Running Separate Routers for Different Purposes in Windows 7

Learn how to set up and configure separate routers for Wi-Fi and IoT devices in Windows 7 for improved network security and performance.

Troubleshooting Double Router LAN-WAN Connection Issues

Experiencing connection issues after setting up a second router in a LAN-WAN configuration? Learn how to troubleshoot and resolve these problems. Optimize your network for improved performance and stability. Read more on our tech support site.

Resolving DHCP Preservation Conflict in Mixed Windows and AIX Environment

This article provides a solution to the DHCP Preservation Conflict issue encountered in a primarily Windows Environment with an AIX server running Symitar/Episys. It offers steps to resolve the conflict and maintain a stable network.

Configure Ethernet Interface for Direct Link with Computer Router to Internet on Jetson Nano (Ubuntu 22.04)

This article provides steps to configure the Ethernet interface named eth0 on Jetson Nano (Ubuntu 22.04) to allow a direct link with another static IP (Jetson 10.41.10.1).

Combining Two Networks into One Network on Huawei EG8145V5 Router

Learn how to combine two separate networks into one network on a Huawei EG8145V5 router. This guide is suitable for beginners and covers the basics of network configuration.

Static IP Configuration on Unraid Server

This article guides you through the process of configuring a static IP on an Unraid server. Follow the steps to ensure full local intranet access without internet access. The VM, Unraid Server, and Router are set to allow DHCP, and the static IP is configured. However, the issue arises when the static IP is set, resulting in full local intranet access but no internet access.

Check Windows Routing Table Entry Used Given IP Address

Learn how to check the Windows routing table entry used for a specific IP address. This guide will help you manually simulate routing table rules selection.

How to Manually Check Routing Table Entry Used for a Given IP Address on Windows Machines

Learn how to manually check the routing table entry used for a given IP address on Windows machines. This can help you troubleshoot network issues and understand how traffic is routed on your machine.

How to Add a Bridge Interface to an Alpine Docker Image for QEMU VM Networking

Learn how to create a script that adds a necessary network interface to an Alpine Docker image for reaching the host network of a QEMU VM. This article provides a step-by-step guide to optimize your VM networking experience.

Add Bridge Interface to Docker Image for QEMU VM Reachability

This article guides you through the process of adding a bridge interface to a Docker image, enabling seamless connectivity between a QEMU virtual machine and the host network. Learn how to create a script for setting up the necessary network interface in Alpine Docker. Improve your tech support skills with this essential Docker and QEMU networking tutorial.

Troubleshooting NFTables: Not Dropping Packets

Having issues with NFTables not dropping packets? Learn about routing chain implementation for a simpler rule to drop packets at layer 3. This tech support article provides guidance on resolving NFTables packet filtering problems.

Unable to Understand Route Host Interface Bridge: Solutions Provided

This article provides solutions to the problem of understanding the Route Host Interface Bridge. The issue was encountered despite trying various solutions found on the internet. Let's discuss the situation and find a working solution.

OpenVPN Not Pinging Server on Debian 12

A Linux user with years of experience but new to networking aspects is struggling to make OpenVPN work on their Debian 12 system. They need help.

Understanding Different Interface Responses in Linux

This article discusses the different responses that Linux may provide for interface requests in an embedded device running on Yocto with two Ethernet interfaces. We will examine the status of these interfaces and their potential causes.

Linux Handles Requests Differently Based on Interface: A Look into Yocto Embedded Linux

Explore how Linux handles requests differently based on the interface received, with a focus on a device running an embedded version of Linux built using Yocto. This tech support article will cover the basics of networking skills and watch the status of the two Ethernet interfaces on the device. Stay tuned for more in-depth information on this fascinating topic.

Preventing DROP of SCTP Packets: A Comprehensive Guide

In this article, we will discuss the causes of SCTP packet drops and explore various methods to prevent them. We will also provide tips for troubleshooting and optimizing SCTP connections for improved network performance.

Existing Tools for Computer-to-Computer Relay Server Connection

This article explores various tools that allow two computers to connect and establish a relay server for routing information locally when the first computer sends data to the second. We discuss popular tools such as Hamachi, NoMachine, and TeamViewer, and compare their features and compatibility.

How to Terminate Cat Cable with Normal RJ45 Caps

Having trouble terminating your cat cable with normal RJ45 caps? Follow these steps to align the 8 wires together using T568B color standard. Read more for a comprehensive guide to tech support.

Network Difference Between Main Router and TP-Link TL-MR6840 Extender

Having trouble with your main router and TP-Link TL-MR6840 extender? Learn about the network differences between the two to optimize your connection and resolve any issues.

Can a Host Ping a PC Inside a VMware Workstation from Outside?

Learn if it's possible to ping a host PC that resides inside a VMware Workstation from outside, using an example with a VM IP address 172.16.10.10.

Problems accessing home network web pages - Router DNS issue?

A user is experiencing issues accessing certain web pages on their local network, which includes a server running Ubuntu 20.05 on a Raspberry Pi. The Ubuntu server runs an Apache server, and the affected web pages are accessible locally on 'localhost' (mainly dev/public...). This article aims to troubleshoot potential DNS issues that may be causing the problem.

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