networking
Network configuration and management
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.
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.
Learn why iptables -C command fails to recognize NAT rules and how to properly verify iptables NAT rules using the correct syntax with -t nat option.
Comprehensive guide to troubleshooting OpenELB external IP assignment issues in Kubernetes. Learn to resolve 'no registered speaker' errors and configure your load balancer kubernetes setup properly.
Step-by-step guide to configure port forwarding on Rostelecom RT-GM-2 router for RDP access. Troubleshoot common issues with NAT, firewall, and UPnP settings.
Learn how to configure GRE over IPsec on MikroTik router and VPS server. Step-by-step guide for secure GRE tunnel encryption, troubleshooting, MTU optimization, and WireGuard alternatives since IPsec over GRE is unsupported.
Step-by-step methods to safely remove a stuck RJ45 connector from switch ports, wall keystone jacks, or laptop ports. Includes tools, PoE safety and prevention.
Complete guide to setting up MikroTik cAP XL ac as a wireless repeater without Ethernet cable. Step-by-step configuration, mounting instructions, and troubleshooting tips.
Layer 3 switches recommended for small orgs: unify networks with VLAN segmentation (admin/users), secure NAS access across VLANs via inter-VLAN routing, and dual GPON redundancy. Config guides and hardware picks.
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.
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.
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.
Why 200ms ping in Fortnite Creative but 40ms in Battle Royale? Causes like server routing, NAT issues, fixes with traceroute, ports, VPN, Net Debug Stats, and Epic support logs.
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.
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.
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.
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.
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.
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.