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A surprising twist of the CLI copy command
Normally, the generic CLI copy command copies local and remote files. Typically, you give the copy command the source path and the destination path. Either the source or the destination path (but not both) can be on a remote machine. The local paths are relative to the CLI root. Some examples: copy…
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How to start your Docker container using a different port
Problem When you start Solace PubSub+ using Docker, it exits with an error message like the following: * docker: Error response from daemon: driver failed programming external connectivity on endpoint solacePSPlusStandard … (really long numbers here): Error starting userland proxy: listen tcp 0.0.0.0:8080: bind: address…
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How to find a free TCP port for testing PubSub+ with Docker
To run a network server like Solace PubSub+, you must configure it to use ports that are not currently in use. However, ports 80 and 8080 are often used by other applications. This means that you need to find a free TCP port in order to test PubSub+ using Docker. Before you can find out which port is free, you have to find…
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Workaround for ws:// connection problem
If you are having trouble connecting to ws:// in PubSub+ Cloud, this is because HTTP Strict Transport Security may be causing your browser to forcefully upgrade your websocket connections to secured websocket connections. This results in the message broker rejecting the connection because the unsecured web messaging port…