# Defines the URL used by the online captcha. # This feature is only available for paid (premium) versions. url: "ab.nickuc.com" Use code with caution.
Here’s why, and what I can do instead:
What are you running? (e.g., BungeeCord, Velocity, Paper) What hosting provider or server hardware specs do you use?
If players face persistent verification loops at ab.nickuc.com , or if administrators experience issues with legitimate traffic getting blocked, further troubleshooting documentation is available through the official NickUC Discord Community . This ticket-based support system allows operators to submit network logs, fine-tune verification sensitivities, and share custom configuration profiles. ab.nickuc
, a highly regarded security and anti-bot plugin suite developed by NickUC for Minecraft servers. Whenever a suspicious connection or massive bot attack targets a Minecraft server protected by nAntiBot, the system prompts players to complete a secure CAPTCHA check at this specific URL before allowing them access to the game lobby.
To achieve maximum efficiency out of the ab.nickuc system, administrators usually run it alongside the broader network ecosystem provided on the NickUC Documentation Portal : Проверка на антибот
Once verified, the web portal communicates with the server backend via the NickUC Network API . The player's unique IP address and username are whitelisted, allowing them to re-log into Minecraft successfully. Why Minecraft Servers Use NickUC Security # Defines the URL used by the online captcha
When utilizing shared hosting or external reverse proxies like HAProxy, multiple connecting nodes may register under an identical source IP address. Administrators must configure trusted upstream IPs within the system settings to prevent the network from flagging legitimate players as part of a distributed attack. Comparing Defensive Frameworks
The prefix ab stands for , mapping directly to the web-based verification layer of NickUC's defensive architecture.
For server owners, the service is configured via the config.yml file of the nAntiBot plugin, where the url parameter is set to ab.nickuc.com by default. Configuration | NickUC.com - About nLogin Here’s why, and what I can do instead:
Dedicated or Virtual Private Servers (VPS); shared hosting is unsupported All verification data is encrypted end-to-end
For players, encountering the ab.nickuc screen is a simple security check that usually takes less than a minute. Here is the step-by-step breakdown of how the authentication flow operates: