Port numbers are divided into three main ranges:
The number "11501" is also the model number for a series of physical networking devices. The Cisco 11501 Content Services Switch is a load balancer used in data centers to distribute network traffic across multiple servers. While this device doesn't use port 11501, the coincidence in numbering often leads to confusion in search engine results. It's crucial to understand that an article about a "Cisco 11501" is about configuring a physical piece of network hardware, not about a software service on your local machine.
Or use the lsof command:
Run with node server.js .
: This is a non-standard port, meaning it's not typically used for well-known services (like port 80 for HTTP or 443 for HTTPS). Instead, it's likely being used for a specific application or service you're developing or testing. http localhost 11501
Rails uses port 3000 by default, but you can specify a different port using the -p flag. For example: rails server -p 11501 . By default, Rails listens on localhost rather than 0.0.0.0 , which affects whether other devices on your network can access it.
He smiled. Here, behind the loopback address, nothing judged him. He could spin up wild ideas and dismantle them the next minute. He opened a new tab and began to feed the server fragments: a half-finished poem, a CSV of mock users, the blueprint for an app that would fail spectacularly and then, maybe, succeed. Port numbers are divided into three main ranges:
Here is a complete technical write-up regarding this address, its function, troubleshooting, and security implications.
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