networking
Network-related issues and solutions
Top gigabit routers handling 1000 Mbps NAT throughput with 5+ gigabit ports: MikroTik RB4011, x86 Protectli/Qotom on OpenWrt. Fix TP-Link Archer C6U NAT table limits and concurrent connections issues.
Configure Proxmox VE cluster network with LACP bonding on 25G fiber for Corosync/migration, separate management VLAN on vmbr1, VLAN-aware vmbr2 for VMs. Full /etc/network/interfaces examples, testing, no host routing needed.
Connect Alcatel HH71 as a 4G modem to an Asus router: LAN->WAN cable, enable Asus DHCP and IP reservations so devices retain the same IP after reboot.
Discover reliable VPN solutions like Shadowsocks, V2Ray (VLESS/TLS+WS), Trojan, and SoftEther for VPS to evade Rostelecom blocks. Learn obfuscation techniques, TCP/443 setups, and quick configs for ISP-resistant connections.
Chromium WebSocket handshake timeouts on Ubuntu 22.04: 'websocket connection failed' or 'opening handshake timed out' in Chrome/Brave, works in Firefox. Causes HTTP/2 Extended CONNECT (RFC 8441), IPv6, systemd-resolved. Diagnose with chrome-net-export, fixes included.
Step-by-step guide to wake a Windows PC over the internet using Wake on LAN, configure BIOS/network, forward router ports, and trigger custom software on wake remotely.
Master iptables rules for WireGuard wg0: drop all incoming packets except UDP port 51821. Why ACCEPT+DROP beats single negated rule. Avoid pitfalls like negation logic, rule ordering, connection tracking, INPUT vs FORWARD chains.
Fix Supabase C# client hangs on InitializeAsync: use project URL and anon key, disable realtime, check IP/network, and avoid async init deadlocks. Log errors.
Troubleshoot MikroTik routing issue with ISP /25 subnet: can't ping between public IPs despite external access working. Enable proxy ARP, check ARP tables, routes, and firewall for MikroTik ping fixes.
Learn how to configure Kubernetes NGINX Ingress to allow server-snippet annotations for MinIO redirection, resolving risky annotation validation errors with proper controller configuration.
Step-by-step guide to set up RDP access to home PC (192.168.0.20:3389) through VPS proxy (200.1.1.1) using SSH tunnel on Raspberry Pi. Fix iptables, AllowTcpForwarding, GatewayPorts, and verify forwarding.
Budget twisted-pair cable testers under 10,000 RUB with wiremap, TDR distance readings, and clip-on RJ45 remotes. Recommended: 5Bites LY-CT010, Noyafa NF-8108.
TCP connects but HTTPS times out? Troubleshoot 3proxy logs, firewall, outbound connections. Complete guide for Ubuntu 24.04.
Solve Windows 10 LTSC 21H2 WiFi connectivity problems when switching networks. Learn driver fixes, network resets, and power management solutions without rebooting.
Fix the 'deduced type void for err is incomplete' error with boost::asio::async_compose. Complete guide with examples and best practices.
Learn the key differences between TimeoutError and URLError exceptions in Python's urllib.request.urlopen. Understand why TimeoutError occurs after specified timeout while URLError happens closer to threshold.
Learn how to fix TFTP server implementation in Node.js to serve dynamically generated XML configuration files for IP phones instead of logging 'file not found' errors.
Diagnose VLESS blocking on Russian mobile networks. Find why a VLESS tunnel works on Wi-Fi but fails on mobile, how carriers detect it, and practical fixes.
Run OpenWrt in Proxmox on Raspberry Pi 4 and share the Pi's Wi-Fi with a LAN PC. VM import, bridge setup, NAT/masquerade, DHCP and troubleshooting tips.