tcp

What is the fundamental difference between WebSockets and pure TCP?

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It’s easier to communicate via TCP sockets when you’re working within an intranet boundary, since you likely have control over the machines on that network and can open ports suitable for making the TCP connections. Over the internet, you’re communicating with someone else’s server on the other end. They are extremely unlikely to have any … Read more

What is the theoretical maximum number of open TCP connections that a modern Linux box can have

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A single listening port can accept more than one connection simultaneously. There is a ’64K’ limit that is often cited, but that is per client per server port, and needs clarifying. Each TCP/IP packet has basically four fields for addressing. These are: source_ip source_port destination_ip destination_port <—– client ——> <——— server ————> Inside the TCP … Read more

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)