Articles about network security | UserComp.com

Identifying and Dealing with Phantom Devices on Your Network

Resolve phantom network devices by isolating threats, identifying unknown MAC addresses, and scanning for malware or unauthorized access.

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Security Concerns of Using Dynamic DNS IPs Behind a NAT Router for a Private Home Network

Mitigates security risks of exposing private home networks to the internet via Dynamic DNS and port forwarding by addressing NAT bypass vulnerabilities.

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How to Block Port 135 on Windows 11 Using Windows Firewall?

Block port 135 on Windows 11 to prevent RPC exploits like WannaCry by creating inbound and outbound firewall rules.

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Suspicions of Compromised Network: Ive Got Some Concerns

Resolve network compromise suspicions by isolating devices, analyzing logs for unauthorized access, and resetting credentials to restore security.

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Port Alerts on Honeypot: Inbound SMB Connection from 192.168.1.1

Resolve false positive SMB alerts from gateway IP 192.168.1.1 by fixing NAT reflection misconfigurations and verifying honeypot isolation.

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Mac Scanning Ports 137, 161, 7000: How to Check Network Security

Resolve confusion about macOS scanning ports 137, 161, and 7000 by verifying legitimate network services and adjusting local network permissions.

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DNS Spoofing Still Fails: Extensive Troubleshooting for Wireless LAN Issues

Resolve DNS spoofing on wireless LANs by verifying encryption, enabling DNSSEC, and detecting rogue access points.

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Rogue Camera Feed: Unknown Device Accessing Network & Switching Ports

Resolve rogue camera feed issues by isolating switch ports, identifying devices via MAC analysis, and blocking unauthorized network access.

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NFTables: Using Ethereum Addresses for Forward Chain Filtering

Resolve the inability to filter Ethereum addresses in NFTables by implementing a user-space proxy or application-level gateway for payload inspection.

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Securing Your Home Network: Addressing Known Vulnerabilities

Resolves home network compromises by guiding users to reboot Spectrum modems, update firmware, isolate infected PCs, and remove phantom devices.

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Secure Your Network with Proxmox Firewall: How to Block Traffic and Allow Specific IP Ranges

Configure Proxmox VE 8 firewall to block unauthorized traffic and allow specific IP ranges for SSH and Netbird services.

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Secure Your Network After a Hack: A Comprehensive Guide

Resolve post-breach network security by isolating devices, resetting credentials, updating firmware, and purging malware to prevent reinfection.

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Configure iptables to Allow NTP Time Synchronization with Internet Access Blocked

Configure iptables to allow outbound NTP synchronization on UDP port 123 while blocking all other internet traffic.

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How to Use Nmap (Zenmap) to Check if My Port is Open?

Resolve port connectivity issues by using Nmap or Zenmap to verify if a specific port is open, closed, or filtered on a target host.

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Encrypt Local Traffic: Setting Up WireGuard for Gateway Services

Configure WireGuard to encrypt local traffic and securely expose internal applications without opening public ports.

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