UDP is faster than TCP, and the simple reason is because its non-existent acknowledge packet (ACK) that permits a continuous packet stream, instead of TCP that acknowledges a set of packets, calculated by using the TCP window size and round-trip time (RTT). For more information, I recommend the simple, but very comprehensible Skullbox explanation (TCP … Read more
You don’t specify which environment you’re running docker-compose in e.g Mac, Windows or Unix, so it will depend a little bit on what changes are needed. You also don’t specify if you’re using the default bridge network in docker on a user created bridge network. In either case, by default, Docker should try and map … Read more
This won’t work always (returns 127.0.0.1 on machines having the hostname in /etc/hosts as 127.0.0.1), a paliative would be what gimel shows, use socket.getfqdn() instead. Of course your machine needs a resolvable hostname.
It’s kinda like: SYN starts a connection; you’ll usually only see it when the connection’s being established. But all data being sent via TCP requires an ACK. Every byte sent must be accounted for, or it will be retransmitted (or the connection reset (closed), in severe cases). Actual connections aren’t usually exactly like the diagram above, though, … Read more
This was a question raised by one of the software engineers in my organisation. I’m interested in the broadest definition.
The error message says it all: your connection timed out. This means your request did not get a response within some (default) timeframe. The reasons that no response was received is likely to be one of: a) The IP/domain or port is incorrect b) The IP/domain or port (i.e service) is down c) The IP/domain … Read more
Check to see if the Remote Procedure Call (RPC) service is running. If it is, then it’s a firewall issue between your workstation and the server. You can test it by temporary disabling the firewall and retrying the command. Edit after comment: Ok, it’s a firewall issue. You’ll have to either limit the ports WMI/RPC work on, … Read more
New answer, powershell TCP UDP Old answer, cmd (Add -n to stop it trying to resolve hostnames, which will make it a lot faster.) Note Dane’s recommendation for TCPView. It looks very useful! -a Displays all connections and listening ports. -b Displays the executable involved in creating each connection or listening port. In some cases well-known executables host multiple independent … Read more
This exception means that there is no service listening on the IP/port you are trying to connect to: You are trying to connect to the wrong IP/Host or port. You have not started your server. Your server is not listening for connections. On Windows servers, the listen backlog queue is full.
The short answer is “no”, there is not an easy or standard way to do this. What you are looking for would be a Bluetooth repeater. Bluetooth repeater devices do exist, but are proprietary, not standardized. For example, this one from a German solar power manufacture, specific to their devices. Usually, Bluetooth networks are a … Read more