today I had problem while uploading files to server (using Filezilla). Server is Ubuntu 16.04.
I had to change many files on server, and they couldn't be uploaded at once, but I had to change them 1 by 1. Some 20 of them. When I finished uploading production did well, I checked my changes. Then, after 1 hour or so, I've got server 500 error on production, like: "To many connections" - forgot to print screen so I can not write exact same message here.
After few minutes of thinking I closed filezilla and when I went back to browser everything was good, again.
So my questions are:
Does filezilla close connections after some time?
Does filezilla use same connection for every file?
Is it possible to get 500 server error because of that?
What is best practices with filezilla in cases like this?