Knowledge base
Fixes, errors & how-tos
Real solutions for game-server errors, Linux & VPS, web hosting and networking — written by the team that runs a protected Frankfurt network. Search the exact error, find the fix.
117 articles in 7 categories
Minecraft20 articles
Minecraft server errors
Crashes, low TPS, version and login errors — the exact fix for each.
- Fix Minecraft "OutOfMemoryError: Java heap space"Server crashing out of memory? What it means and how to fix it for good.Minecraft
- How to Allocate More RAM to a Minecraft ServerThe -Xmx/-Xms flags, doing it in a panel, and how much RAM to give.Minecraft
- Why Can't My Friends Join My Minecraft Server?Every cause — IP, port, firewall, version, whitelist — and the fix for each.Minecraft
- How to Whitelist a Minecraft ServerEnable it, add and remove players, and the commands that actually work.Minecraft
- How to Op Yourself (Make Yourself Admin)The /op command from the console, op levels, and opping others safely.Minecraft
- How to Change Gamemode & DifficultyThe /gamemode and /difficulty commands and the server.properties defaults.Minecraft
- Minecraft server.properties ExplainedEvery setting that matters, in plain English — gameplay, access and performance.Minecraft
- How to Read a Minecraft Crash ReportFind the mod or plugin at fault and fix the most common crashes.Minecraft
- Fix Minecraft "Can't Keep Up! Is the Server Overloaded?"Low TPS explained — what causes the lag and how to get back to 20 TPS.Minecraft
- Fix Minecraft "Failed to Login: Invalid Session"The client fix and the server-side online-mode setting.Minecraft
- Fix Minecraft "UnsupportedClassVersionError"Wrong Java version — which Java each Minecraft needs.Minecraft
- Fix Minecraft "You Need to Agree to the EULA"The one-line fix in eula.txt, explained.Minecraft
- Fix Minecraft "Outdated Server / Client"Version mismatch — match versions or bridge with ViaVersion.Minecraft
- Fix Minecraft "Connection Refused: No Further Information"What the io.netty error means and how to fix it.Minecraft
- Fix Minecraft "Failed to Verify Username"The online-mode and auth fix, server-side.Minecraft
- Fix Minecraft "Internal Exception: ReadTimedOut"The timeout causes and fixes, both client and server.Minecraft
- Minecraft Server Commands — Full List (Java)op, gamemode, gamerule, give, tp, weather, whitelist, ban and more, with syntax.Minecraft
- Minecraft Java vs Bedrock ServerMods & plugins vs cross-platform play — which edition to host, and bridging with Geyser.Minecraft
- Paper vs Spigot vs PurpurThe three server softwares compared — performance, plugins & config. Which to run.Minecraft
- Forge vs Fabric — Which Mod Loader?Mod availability, performance & modpacks — how to pick the right loader for your mods.Minecraft
Survival & Sandbox25 articles
Survival & sandbox servers
Rust, ARK, Valheim, Palworld, Zomboid and more — won't list, mods, or connect.
- Fix Rust Oxide / uMod Plugins Not LoadingPlugins broken after a wipe or update? The usual causes and the quick fix.Survival & Sandbox
- Fix Rust "Disconnected: EAC" ErrorsClear the EasyAntiCheat kick with these client-side fixes.Survival & Sandbox
- Fix Rust Server Not Showing in the BrowserPorts, the Modded tab, tags, and F1 connect.Survival & Sandbox
- Fix ARK Mods Not Downloading or UpdatingForce a clean re-download and keep mods in sync.Survival & Sandbox
- Fix ARK "Joining Failed" / "Connection Timeout"The query-port fix, mod check, and direct connect.Survival & Sandbox
- Fix Valheim Dedicated Server Not ShowingThe ports, the crossplay catch, and how to join by IP.Survival & Sandbox
- Fix Valheim "Incompatible Version"Match client, server and mod versions — here's how.Survival & Sandbox
- Fix Palworld Dedicated Server Not Showing UpOpen the port and connect directly — the reliable way.Survival & Sandbox
- Fix 7 Days to Die Server Not ShowingPorts, visibility, EAC — and how to connect directly.Survival & Sandbox
- Fix Project Zomboid Server Not ShowingPorts, the public toggle, mod order and direct connect.Survival & Sandbox
- Fix DayZ Server Not Showing (DZSA)Ports, mod matching with DZSA, and direct connect.Survival & Sandbox
- Fix Sons of the Forest Server Not ShowingPorts, the config, and joining by IP.Survival & Sandbox
- Fix Satisfactory Server Not ConnectingThe port, add-by-IP, and claiming the server.Survival & Sandbox
- Fix Terraria Server "Can't Connect"The port, joining, and tModLoader mod matching.Survival & Sandbox
- Fix Unturned Server Not ShowingPorts, the Internet/LAN setting, and direct connect.Survival & Sandbox
- Fix SCP: Secret Laboratory Server Not ShowingThe port, central-server verification, and direct connect.Survival & Sandbox
- ARK Admin Commands — Full List (ASA & ASE)Enable cheats, spawn creatures & items, tame, teleport and control time. Full reference.Survival & Sandbox
- Rust Admin & Console Commands — Full ListGrant admin, kick/ban, noclip & teleport, time & weather, give items. Full reference.Survival & Sandbox
- Palworld Admin Commands — Full ListAdminPassword login, show players, kick/ban, teleport, broadcast, save & shutdown.Survival & Sandbox
- 7 Days to Die Admin & Console CommandsTeleport, settime, give XP, ban/kick, creative & debug menu, spawn entities.Survival & Sandbox
- Valheim Console Commands & Cheats — Full Listdevcommands, god/fly/ghost, spawn, tame, set time, plus server kick/ban/save.Survival & Sandbox
- DayZ Admin Commands — BattlEye RCon & ToolsWhy the Arma # commands don't work, plus the real BattlEye RCon and COT admin.Survival & Sandbox
- Unturned Server Commands — Full Admin Listadmin, give, teleport, experience, vehicle, kick, ban, time, save and more.Survival & Sandbox
- Terraria Server Commands — Vanilla & TShockVanilla console (say, save, time, kick) plus TShock /ban, /god, /item, /tp.Survival & Sandbox
- SCP: SL Admin Commands — RemoteAdminOpen RA with M, then forceclass, round restart, kick/ban, broadcasts, CASSIE, give.Survival & Sandbox
FiveM & Roleplay5 articles
FiveM & roleplay servers
Resources, handshake, listing and crashes on GTA V roleplay servers.
- Fix FiveM "Couldn't load resource"A FiveM resource won't start? Manifest, dependencies and script errors — fixed.FiveM & Roleplay
- Fix FiveM Stuck on "Connecting" / o:errHandshake, ports and cache — why FiveM hangs on connect.FiveM & Roleplay
- Fix FiveM Server Not Showing in the ListThe Cfx license key, ports, and direct connect.FiveM & Roleplay
- Fix FiveM CitizenFX Crash on JoinCache, GTA V files and mods — the client-side fixes.FiveM & Roleplay
- FiveM Server Commands — Console & txAdminstart/stop/restart/ensure resources, refresh, status, quit, plus txAdmin kick/ban/warn.FiveM & Roleplay
Shooters & Voice12 articles
Shooters & voice servers
CS2, CS 1.6, Source, GMod, Squad, Insurgency and TeamSpeak fixes.
- Fix CS2 "VAC Was Unable to Verify the Game Session"Kicked from matchmaking? The fixes that actually clear it.Shooters & Voice
- Fix CS2 Community Server Not ShowingPorts, the GSLT token, and direct connect.Shooters & Voice
- Fix "Server Is Enforcing Consistency for This File"CS:S / TF2 / GMod kick — the player and admin fixes.Shooters & Voice
- Fix AMX Mod X "Couldn't load library" (CS 1.6)AMXX plugin stuck on "bad load" or "failed"? The real causes and the exact fix.Shooters & Voice
- Fix Garry's Mod Addons & Missing TexturesWorkshop collections, FastDL and CS:S content — fixed.Shooters & Voice
- Fix Squad Server Not ShowingPorts, the license token, and direct connect.Shooters & Voice
- Fix Insurgency: Sandstorm Server Not ShowingPorts, the community filter, and direct connect.Shooters & Voice
- Fix TeamSpeak "Failed to Connect to Server"The ports, the address format and the checks that work.Shooters & Voice
- CS2 Console Commands — Full List & Practice Configsv_cheats, noclip, give weapon, bots, infinite ammo — plus a ready practice config.Shooters & Voice
- Garry's Mod Admin Commands — ULX Full Listkick, ban, slay, god, noclip, bring/goto, freeze, gag, mute, jail and user groups.Shooters & Voice
- Squad Admin & RCON Commands — Full ListAdminKick/Ban, ChangeLayer, Broadcast, RestartMatch, ListPlayers — console or RCON.Shooters & Voice
- CS 1.6 5v5 Mix Server — Competitive Match SetupKnife round, team pick, ready-up & score — run proper 5v5 mixes on a low-ping server.Shooters & Voice
Linux & VPS27 articles
Linux & VPS administration
SSH, permissions, resources, databases, panels and the commands you need.
- How to Connect to Your Server With SSHConnect from Windows, Mac & Linux — the command, PuTTY, keys and ports.Linux & VPS
- Fix SSH "Permission denied (publickey)"Wrong key, wrong user or bad permissions — the exact fix for each.Linux & VPS
- How to Set Up a Firewall on Linux (UFW)Default-deny, open only the ports you need, without locking yourself out.Linux & VPS
- How to Install and Use Fail2banAuto-ban IPs that brute-force your SSH — install, tune and unban.Linux & VPS
- Fix SSH "Connection refused" / "timed out"What each error means and the exact steps to get back in.Linux & VPS
- Fix SSH "Too Many Authentication Failures"Too many keys offered — the IdentitiesOnly fix.Linux & VPS
- Fix "Permission denied" (chmod & chown)Understand permissions and ownership, and fix it the right way.Linux & VPS
- Check CPU, RAM & Disk Usage on LinuxThe essential commands to find what's eating your resources.Linux & VPS
- Essential Linux Commands for Server AdminsA practical cheat sheet — files, processes, screen, services and logs.Linux & VPS
- Fix "No Space Left on Device" on LinuxFind what filled the disk — files, logs, and inodes.Linux & VPS
- Fix Linux Killing Your Server (OOM Killer)Confirm the out-of-memory kill and stop it happening.Linux & VPS
- Fix "Address Already in Use" / Port in UseFind what holds the port and free it — with commands.Linux & VPS
- Fix a Cron Job Not RunningPATH, paths and permissions — how to debug cron.Linux & VPS
- Fix MySQL "Access Denied for User" (1045)Wrong password, host or grants — the fixes with commands.Linux & VPS
- Fix MySQL "Too Many Connections"The quick fix and how to raise max_connections properly.Linux & VPS
- Fix MySQL / MariaDB Won't StartRead the error log and fix the common causes.Linux & VPS
- Fix Common SteamCMD Errors (0x202, Timeout)Disk space, timeouts and "No subscription" — solved.Linux & VPS
- Fix Pterodactyl Server Stuck Installing / Won't StartWings, egg, allocation — the panel fixes.Linux & VPS
- Your Game Server Panel: A Quick TourVideo tour of Console, Files, Network, Startup and Settings.Game Servers
- Upload Files to Your Server with SFTP (FileZilla)Find your SFTP details, connect with FileZilla and upload files.Game Servers
- Fix Discord Bot Offline / Not RespondingToken, intents, permissions and 24/7 hosting.Linux & VPS
- Fix "user is not in the sudoers file"Grant sudo access properly — and recover if locked out.Linux & VPS
- Fix "fork: Cannot allocate memory"Out of RAM or process slots — how to recover.Linux & VPS
- Fix "command not found" on LinuxNot installed or not on PATH — how to tell and fix.Linux & VPS
- Fix "Disk Quota Exceeded"Your account limit, not the disk — how to free space.Linux & VPS
- VPS Hosting — Protected KVM VPS, Full RootDedicated resources, full root, NVMe & DDoS protection — run anything Linux.Linux & VPS
- DDoS-Protected Dedicated ServersA whole machine behind a multi-Tbps filtered network — for big networks & heavy apps.Linux & VPS
Web Hosting19 articles
Web hosting & DirectAdmin
500 errors, DNS, domains and email deliverability — solved.
- Fix "500 Internal Server Error".htaccess, permissions, PHP and memory — the common causes and fixes.Web Hosting
- Point a Domain to Your Server (A Record)How to set the A record — and why it isn't instant.Web Hosting
- Fix Email Going to Spam (SPF, DKIM, DMARC)Set all three records correctly so your mail reaches the inbox.Web Hosting
- Fix "502 Bad Gateway"The backend (usually PHP-FPM) failed — how to fix it.Web Hosting
- Fix "504 Gateway Timeout"The backend took too long — the causes and fixes.Web Hosting
- Fix WordPress "Error Establishing a Database Connection"Credentials, DB down or corruption — solved.Web Hosting
- Fix the WordPress White Screen of DeathReveal the error, then fix the plugin, theme or memory.Web Hosting
- Fix "Not Secure" / SSL & Let's Encrypt RenewalExpired certs, renewal failures and mixed content.Web Hosting
- Fix "403 Forbidden"Permissions, .htaccess or a missing index — the fixes.Web Hosting
- Fix "Too Many Redirects" (ERR_TOO_MANY_REDIRECTS)SSL/Cloudflare, WordPress URLs or htaccess loops.Web Hosting
- Fix "413 Request Entity Too Large"Raise the upload limit in nginx and PHP.Web Hosting
- Fix Cloudflare Error 521 "Web Server Is Down"Cloudflare can't reach your origin — here's why.Web Hosting
- Fix FTP "530 Login Authentication Failed"Credentials, host/port, passive mode and TLS.Web Hosting
- Fix phpMyAdmin "Access Denied" / Can't Log InIt's a MySQL login problem — the fixes.Web Hosting
- DirectAdmin Reseller Hosting — Your Own BrandSell web hosting under your brand — packages, clients & prices, white-label DirectAdmin.Web Hosting
- How to Start a Web Hosting Reseller BusinessPick a plan, brand it, build packages, price them and land your first clients.Web Hosting
- Managed Forum & Community PlatformForums, members, posts & themes out of the box — updated, backed up & protected.Web Hosting
- How to Start an Online CommunityPlatform, forums & roles, seeding content, growing members and staying safe.Web Hosting
- Offsite Backup Storage — Protect Your DataKeep an independent copy on a separate network — survive crashes, hacks & ransomware.Web Hosting
Networking9 articles
Networking & connectivity
Port forwarding, timeouts, packet loss and finding your IP.
- How to Port Forward for a Game ServerThe steps, the ports, and why CGNAT can block it entirely.Networking
- Fix "Connection Timed Out" Joining a ServerHow to tell whose side it is — and fix it.Networking
- What Causes Packet Loss in GamesRubber-banding and warping explained — how to test and fix it.Networking
- How to Run a WinMTR TestVideo tutorial + official download: run it, read the columns, send us the result.Networking
- How to Find Your Server's IP and PortWhere to find them to share with friends — hosted or at home.Networking
- Fix "DNS_PROBE_FINISHED_NXDOMAIN"A domain won't resolve — the DNS fixes, both sides.Networking
- Fix "ERR_CONNECTION_TIMED_OUT" in Your BrowserTell if it's you or the server, and fix it.Networking
- GRE Tunnel DDoS Protection — Protect Any IPRoute your server through a filtered network — protected IP, real IP hidden, no migration.Networking
- Anti-DDoS VPN — Hide Your IP & Stay OnlineA VPN routed through a mitigation network — stay online under attack, real IP masked.Networking
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