Networking
Questions about routers, Wi-Fi, home networks, and connectivity.
Learn how to set up a VPS proxy for accessing geographically restricted Russian resources like TI and Arduino. Effectiveness analysis and Roskomnadzor blocking considerations included.
HTTP/3 not working with Angie server in Russia due to ISP network restrictions and QUIC protocol blocking. Learn about technical symptoms, server configuration, and workarounds.
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.
Step-by-step guide to enable external SSH access to VirtualBox Ubuntu guest from internet via Windows host and router. Use bridged adapter, NAT port forwarding, or tunneling with security tips for optimal performance.
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.
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.
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.
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.
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.
Step-by-step KTS 4M GSM gateway setup with FreePBX in trunk mode. Static LAN IP, per-SIM SIP ports, Call Num=# with d/a transforms, create SIP trunks and test.
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.
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.
Connect Windows office networks with WireGuard on an Ubuntu 22.04 VPS. Step-by-step site-to-site setup with split tunneling to route only inter-office traffic.
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.
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.
Step-by-step guide to route LAN traffic via MikroTik to an XRAY transparent proxy using TProxy, mangle rules, policy routing and iptables for correct routing.
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.
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.