: This refers to a specific port used for communication. In networking, ports are used to differentiate between many different IP services running on a single server. Port 8080 is an alternative to the standard HTTP port 80, often used for web servers. Using port 8080 might be a choice made to avoid conflicts with other services or because port 80 is blocked by a firewall.
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This likely refers to a specific subfolder or "secret" path in the URL used to bypass standard login pages or to access a specific stream without it being indexed by search engines. : This refers to a specific port used for communication