Articles about net | UserComp.com

Enabling NGINX to Access Local Network Resources via VPN

Looking to allow NGINX to access local network resources via VPN? Learn how to set up secure and efficient access to your internal network, including websites, the Internet, and other accessed local network. This guide will help you configure NGINX with popular VPN clients like BitWarden and beyond.

Can't Reach Another Computer via OpenVPN on CentOS (Azure IP: 10.5.0.4, OpenVPN IP: 10.6.0.4)

Having issues reaching another computer via OpenVPN on your CentOS machine with Azure IP 10.5.0.4 and OpenVPN private address 10.6.0.4? This article provides a possible solution for connecting your networks. Read more to learn how to troubleshoot.

Exposing Docker Container to External Networks on Ubuntu 22.04.3 LTS

Learn how to make a Docker container with exposed ports available to external networks on Ubuntu 22.04.3 LTS. This tutorial will guide you through the process of using curl to check for user authentication and configuring Docker networking.

How to Resolve Hostname with mDNS on Ubuntu 22.04 to Access Local Network Devices

Learn how to resolve hostnames with mDNS on Ubuntu 22.04 to easily access devices connected to your local network. With mDNS, you can ping devices using their hostnames and avoid the hassle of remembering IP addresses.

Configuring NTP Polling on a Second Ethernet Interface in Windows 10 Enterprise for Better SIP Server Control

Learn how to configure NTP polling on a secondary wired Ethernet interface for improved control of a SIP server system in Windows 10 Enterprise. This guide will help you optimize your network's performance and ensure accurate timekeeping for your phone system.

NMAP Says Host is Blocking Ping Probes: Here's How to Fix It

If you're running NMAP with the -A and -vvv flags and getting a message that says 'Host seems to be really blocking ICMP echo probes, try -Pn', it means the host you're scanning is blocking ping probes. Here's how to resolve the issue and get the information you need using NMAP.

WLAN Connects Fine, but Default Gateway Unreachable on Laptop - Solved

Having trouble accessing the internet after connecting to your WLAN? This article discusses a common issue where the connection is stable, and the IP address is obtained through DHCP Access Point (AP), but the default gateway is unreachable. We provide a step-by-step solution for both Windows and other operating systems.

Why Are My DNS Requests Being Redirected by My ISP?

Learn about the reasons why your Internet Service Provider (ISP) might be redirecting your DNS requests to their own servers, even when you've set public DNS servers like Cloudflare (1.1.1.1) or Google (8.8.8.8).

Updates: New Ways to Block Wildcard Outgoing Traffic by Domain

Learn new methods to block wildcard outgoing traffic by domain, an alternative to /etc/hosts.deny. Improve network security and resolve issues with unwanted domain connections.

Setting Up Ethernet Switches in Dormitories: How to Register Device MAC Addresses

Living in a dormitory and need to set up an Ethernet switch? Learn how to register device MAC addresses to connect to the dormitory network. Follow our step-by-step guide for a smooth networking experience. #EthernetSwitches #MACAddresses #TechSupport

Creating Redundant Wireless Topology with Mininet-Wifi

This article provides a guide on creating a redundant wireless topology using Mininet-Wifi. The main idea is to apply redundant links between every station and network, enabling a more reliable and robust wireless network. Learn how to set up an example with multiple connectable nodes.

Setting Up a Mikrotik Router as an Acting Switch with WiFi Enabled

Learn how to set up a Mikrotik router as an acting switch, with WiFi enabled. Connect the new Mikrotik router to the first one, and configure it for seamless networking. Improve your network's capabilities and expand your WiFi coverage with ease. Read more to get started.

Weird IPv6 Issue with Windows Server DNS on IPv4 Network: Unable to Resolve Local Hostnames

Experiencing issues with Windows Server DNS on an IPv4 network where local hostnames are not being resolved using a single DNS server for the primary domain? Learn more about this peculiar IPv6 issue and how to resolve it.

Creating Hard Links for Network Volume: A Simple Guide

If you're trying to populate a 'copy' folder with files from a deep folder structure without duplicating files, consider using hard links to the original files. This guide provides a simple way to create hard links for network volume, allowing you to access the original files without taking up additional storage space.

Weird BitTorrent Peer Behavior: No Percentage or Client ID

When downloading torrents, you might encounter peers without percentage or client ID information. This can be unusual and might affect your download speed. Here's a glimpse at what this means and how to handle it.

Controlling Devices Connected to Your Modem: A Home Modem Interface Guide

Learn how to control and manage the devices connected to your modem using its connecting interface. This guide covers package programs and program usage for Linux, Windows, and MacOS, helping you optimize your home modem experience.

Troubleshooting Ubiquiti Cloud Gateway Max: Connected Devices, but No Internet

Having trouble with your Ubiquiti Cloud Gateway Max even though devices are connected to the network? Learn how to troubleshoot and solve this issue with our step-by-step guide. Keywords: Ubiquiti, Cloud Gateway, Network Troubleshooting, Connected Devices, No Internet.

Understanding NAT Masquerading in iptables: A Comprehensive Guide

This article provides a comprehensive overview of NAT masquerading in iptables, explaining its behavior as Symmetric NAT and its significance in networking. Learn how to optimize your tech support skills with this essential guide.

Connecting Remote Local Network Devices Connected via VPN on Windows 11

In this tech support article, we will guide you through the process of connecting remote local network devices connected via VPN on a Windows 11 computer. Learn how to access your Ubuntu computer through SSH or VNC over a VPN connection. Follow our step-by-step instructions to ensure secure and seamless remote access.

Setting Direct Ethernet Cable Connection between Two Ubuntu 22.04 PCs for SSH

This article provides steps to establish a direct Ethernet cable connection between two computers running Ubuntu 22.04, allowing SSH access from one computer (client) to another (server).

Setting Up Network with Two Routers: ISP-Provided GXTitanium-2122A and Bought TP-Link Archer C1200 for OpenVPN Server

This article provides a guide on setting up a network with two routers: an ISP-provided GXTitanium-2122A and a bought TP-Link Archer C1200 for OpenVPN server capabilities. The tutorial includes port forwarding on the ISP-provided router for optimal connectivity.

Unstable Internet Connection with Second Router on BSNL Fibernet

This article explains the steps to establish a stable internet connection with a second router on a BSNL Fibernet network.

Windows 10 Randomly Loses Internet Connection: A Solution

Users report that their Windows 10 system occasionally loses its internet connection while using Google Chrome. This issue seems random and requires immediate attention.

Understanding Private IP Addresses and Their CIDR Prefixes: /8, /12, /16

The Internet Assigned Numbers Authority (IANA) has reserved three blocks of IP address space for private internets: 10.0.0.0/8, 192.168.0.0/12, and 172.16.0.0/12. In this article, we'll explain what private IP addresses are, and how CIDR prefixes /8, /12, and /16 are used to identify these networks.

Troubleshooting Internet Access on Your Tech Support Site

Experiencing issues with Internet access on your tech support site? Learn how to identify and resolve common problems for a small server with possible outgoing data restrictions and limited connections.

Urgent: Demand for Payment after Movie Torrenting on Vodafone Network

Recent reports indicate that users have received letters demanding a fee of €1000 after movie torrenting on the Vodafone network. Two IP addresses were provided in the letters, apparently obtained through network monitoring. Urgent assistance is required to provide proof for a potential legal case.

Ubuntu 20.04 on VirtualBox: Missing Internet Access after Changing MAC Address

Learn how to resolve internet access issues in Ubuntu 20.04 VirtualBox after accidentally changing the MAC address.

Accessing a Printer on Another Site (Different Network) - Tech Support

Learn how to access a printer located on another site or network, connecting to the main network (MainSite) from a satellite site (SatelliteSite).

PF Sense UPnP Service: Work Minutes with Enabled Devices

This article discusses the UPnP service in PF Sense 2.7.0 and the time it takes to work with enabled devices. The article includes a command output example and its interpretation.

Static IP Address Conflict with Router: Troubleshooting Steps

Learn how to troubleshoot and resolve a static IP address conflict between a machine and a router in an internal network.

Understanding the Difference: Public NTP vs NTP Pool

This article explains the difference between Public NTP and NTP Pool, two popular sources for Network Time Protocol (NTP) servers. While Public NTP servers are individual servers not affiliated with large organizations or governments, NTP Pool is a decentralized pool of servers. Understanding these differences can help you make informed decisions when choosing an NTP server.

Libvirt Bridging Not Working: No Layer 3 Connectivity for VMs

Experiencing issues with Libvirt bridging not providing Layer 3 connectivity for your VMs? Learn how to troubleshoot and resolve this common problem.

Setting up Home Networking with Raspberry Pi Router for Kubernetes Lab

Many computer enthusiasts aim to convert their home labs for experimentation running Kubernetes. This article explains how to set up a home networking solution using a Raspberry Pi 5 (RP5) as a router with Ubuntu, MacMini with Talos Linux, and an AMD PC with Talos.

Setting Up a Network Lab Router using Ubuntu Server and VirtualBox 7

Learn how to set up a network lab router using Ubuntu Server and VirtualBox 7. Discover the recommended solution instead of the deprecated Host-Only Adapter.

Creating a Batch File to Open Multiple Computers on a Local Network

Learn how to create a Batch file to open multiple computers connected on a local network using their IP addresses.

Checking SSL Certificate for User Authentication when Accessing Site from Outside the Zone

When accessing a site from outside the local network, the site may authenticate the user by checking their SSL certificate. In this article, we will discuss the process of checking SSL certificates for user authentication outside the zone.

Access Network Share via Dynamic IPv6: Using IPv6-literal.net

Learn how to access network shares using dynamic IPv6 addresses with the help of ipv6-literal.net. Follow the instructions to configure your network settings.

Routing Traffic: Static IP vs. DHCP on Ubuntu 22.04

Learn how to configure static and dynamic routing on Ubuntu 22.04 for a wired (eno1) and wireless (wls4) interface.

Mobile Hotspot Activation Blocks Elegible Ethernet Ports

Users connecting to a college network via Ethernet have reported an issue where activating a mobile hotspot causes their Ethernet port to get blocked.

Resolving Recurring Network Issues on Windows Server 2016 Terminal Servers (T1, T2, T3)

Experiencing recurring network issues on Windows Server 2016 Terminal Servers T1, T2, and T3, which are hosted on different Hyper-V hosts? Learn how to troubleshoot and resolve this problem with our step-by-step guide.

Port Forwarding Unavailable on COX Internet: Troubleshooting Steps

Learn the steps to resolve Port Forwarding unavailability issues on COX Internet. Check your WAN IP and try different methods.

Configuring ONOSSDN controller for single device connection using two protocols

Learn how to configure ONOSSDN controller for connecting a single device using two different network protocols.

KVM/QEMU: Resolving Static IP Address Assignment Issues with TAP Devices

When running operating systems on KVM/QEMU virtual machines using TAP devices for networking, static IP address assignment can cause issues. This article provides solutions to resolve such problems.

HDBaseT Connection Work: Extended Fiber Ethernet Adapter for Long Distance HDMIPojector

Learn how to use an HDBaseT fiber Ethernet adapter to extend the signal for a HDMIPojector over long distances. This guide covers the setup process and requirements for a Cat6 cable and 300ft distance limit.

Linux Server 2: No Internet Access - Troubleshooting with Linux Gateway

This article provides a step-by-step guide to troubleshooting network routing issues between Linux Server 2 and the internet, using Linux Gateway as an intermediary.

Configure Local Machine to Use Another Local Machine's DNSMasq for Local Domains in OpenShift Network

Learn how to configure your local machine to use another local machine's DNSMasq to resolve local domains in an OpenShift network.

Reaching Different Docker Containers Behind NAT: A TCP/UDP Communication Approach

Learn how to reach different Docker containers behind a Network Address Translation (NAT) without specifying port numbers using TCP and UDP communication.

Using Wireshark to Catch Students Cheating: A Network Admin's Perspective

In this article, we'll explore how Wireshark, a popular network protocol analyzer, can be used by network administrators to detect students cheating during online exams. We'll discuss the setup and configuration required to monitor network traffic, identify suspicious patterns, and provide actionable insights.

Linux Bridge: Forwarding Specific UDP Messages with iptables for Local Process Correction

In this article, we will guide you through the process of setting up a Linux bridge using `brctl` and using `iptables` to forward specific UDP messages to a local process. We will test the setup on three PCs.

Laptop Not Connecting to WiFi6 Mesh Network: Older Intel Dual-Band Adapter Issue

Experiencing issues with an older Intel Dual-Band WiFi adapter not connecting to a WiFi6 Mesh Network (e.g., Linksys Velop Pro)? Learn about potential compatibility issues and possible solutions.

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