There is an article titled Change listen port for Confluence that may be of assistance. Most of the time when I see the port changed it is due to a proxy being put in place to perform this. Here is some further information about setting up a proxy for Confluence:
Hi my Community friends! For those who don't know me, I'm a product marketer on the Confluence Cloud team - nice to meet you! For those of you who do, you know that I've been all up in your Co...
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