Port 1111 is registered to lmsocialserver (LM Social Server), a product that no longer exists. This is what happens when port registrations outlive the software they were created for.
What LikeMinds Social Server Was
In the late 1990s, LikeMinds created software for "graphically enhanced chat rooms populated by like-minded people."1 The system could analyze purchasing history and clickstream data to serve up personalized recommendations—an early attempt at what we'd now call social networking and personalization engines.
The server ran on port 1111 for both TCP and UDP. It provided Japanese and English language chat and forum capabilities, and could be integrated into websites through a Java or CGI API.2
The Corporate Journey
LikeMinds merged with Andromedia in 1998. On December 1, 1999, Macromedia acquired the combined company for about $280 million in cash and stock.3 The product became Macromedia LikeMinds.
Then it was abandoned. LikeMinds joined "a long list of server products and server-related IDEs" that Macromedia discontinued, alongside names like Spectra, Drumbeat, and SiteSpring.4 The software died. The port registration did not.
What Port 1111 Means Today
Port 1111 sits in the registered ports range (1024–49151). These ports are registered with IANA for specific services, but unlike well-known ports (0–1023), they don't require root privileges to bind to.5
The registration says port 1111 belongs to lmsocialserver. But lmsocialserver doesn't exist anymore. The domain likeminds.com redirects to Adobe (which acquired Macromedia in 2005). The server software is gone. The port remains assigned.
This happens more often than you'd think. Port assignments are permanent records in the IANA registry, even when the software they were created for disappears.
Security Note
Because port 1111 is assigned to defunct software, it's sometimes repurposed by malware or unauthorized services.6 If you see port 1111 listening on your system and you're not running 1990s chat server software (you're not), investigate what's actually using it.
Checking What's on Port 1111
On Linux or macOS:
On Windows:
If something's listening on port 1111, verify what it is. It won't be LikeMinds—that's been dead since the early 2000s.
Why Unassigned and Abandoned Ports Matter
The port system is a registry of intent. When a company registers a port, they're claiming "this number means our protocol." Sometimes the protocol succeeds and the port becomes universally recognized (like 80 for HTTP or 443 for HTTPS). Sometimes the protocol dies and the port becomes a tombstone.
Port 1111 is a tombstone. It marks where LikeMinds Social Server once ran, back when people thought personalized chat rooms were the future of the Internet.
The future went a different direction. The port assignment stayed behind.
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