Guides tagged “networking”
Step-by-step MdmHost guides about networking, sorted A-Z.
19 guides
Add IP addresses and change a site's IP in WHM (root guide)
Add new IPv4 addresses to a cPanel server, assign a dedicated IP to an account, change a site's IP, and set up shared IPs per reseller in WHM as root.
Choose the best server location: latency, packet loss and your visitors
How to pick between Germany, USA and Singapore data centres by measuring latency and packet loss from where your visitors actually are.
Configure a static IP and add extra IPs on a Linux VPS (Netplan and nmcli)
Set a static IPv4 address, gateway and DNS, and add additional IPs on Ubuntu with Netplan or on AlmaLinux and Rocky with NetworkManager (nmcli).
Diagnose network problems with ping, traceroute, nslookup, dig, curl and telnet
A practical toolkit for finding out why a website or server is unreachable: test reachability, the route, DNS answers, ports and HTTP responses.
Docker networks: bridge, host and custom networks explained
How Docker networking works on a VPS. Covers the default bridge, user-defined networks with built-in DNS, host mode, connecting containers across Compose projects and inspecting networks.
How to run and read an MTR report (packet loss and latency)
Run MTR or WinMTR, then read loss, latency and jitter per hop correctly so you can tell real network problems from harmless router behaviour.
HTTP/2 and HTTP/3 (QUIC) explained: what they change and how to check them
What HTTP/2 and HTTP/3 improve over HTTP/1.1, why HTTP/3 runs on UDP, and how to check which version your site really serves with a browser or curl.
IP addresses explained: public, private, shared and dedicated IPs
What an IP address is, how public and private ranges differ, and when a shared or dedicated IP matters for your website, email or server.
IPv4 vs IPv6 explained
A plain explanation of IPv4 and IPv6 addresses, why IPv6 exists, how to read your server's address, and what each means when you connect to a VPS or point a domain at it.
Ports, protocols and TCP vs UDP explained
How ports and protocols let one server run many services, the real difference between TCP and UDP, and which one common services use.
Proxy vs VPN vs reverse proxy: what each one does
The practical difference between forward proxies, SOCKS, VPNs and reverse proxies, and which one fits admin access, privacy, IP whitelists or a website.
Set a static IP and add additional IPs on Windows Server
Configure a static IPv4 address, gateway and DNS on a Windows Server VPS and add extra IP addresses with the GUI or PowerShell, without losing RDP.
Set up a WireGuard VPN server on a Linux VPS
Install WireGuard on an Ubuntu or Debian VPS, create server and client keys, enable forwarding and NAT, and connect from Windows, macOS or a phone.
Set up IPv6 on a Linux VPS and test it
Add the IPv6 address and gateway from your provider with Netplan or nmcli, open the firewall, publish AAAA records and confirm IPv6 works end to end.
Set up VirtFusion networking: IP blocks, IPv4/IPv6 pools and bridges
Plan and configure hypervisor networking in VirtFusion: create the Linux bridge, add IPv4 and IPv6 blocks, attach them to hypervisors and test new servers.
Speed test a server: bandwidth vs throughput with iperf3 and curl
Why a 1 Gbps port rarely shows 1 Gbps in a download, and how to measure real throughput to and from your VPS with iperf3, curl and speedtest tools.
Troubleshoot MTU problems: hanging pages, stuck SSH and slow VPNs
Recognise MTU and fragmentation problems, find the right MTU with ping, and fix it on Linux, Windows, WireGuard and Docker networks.
View and configure VPS IP addresses (IPv4 and IPv6) in Virtualizor
Find your VPS IPv4 and IPv6 addresses, gateway and netmask in Virtualizor, add an extra IP inside Linux, enable IPv6 and fix networking after changes.
VPS has no network or internet? Troubleshooting on Virtualizor
Diagnose a Virtualizor VPS that is online but unreachable: check status and IPs in the panel, test from VNC, fix interface, gateway, DNS and firewall problems.
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