maria-developers team mailing list archive
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On IRC, waintroub_ asked me if I had a use case to show
what mariadb could gain from adding support for proxy protocol.
In a nutshell, it allows the mysql servers behind a proxy to
know what's the IP address of the client connecting to
the proxy. Without it, the backend servers will only see the IP
address of the proxy front-end. Thus making it not possible
to use the IP address of the clients for grants, or for logging,
query analysis, ...
Here's a post that has some graphics and more detail for these
Hope this makes it clearer.