Which OS am I using?
During support requests, we will often ask a client which OS version they're using. Running all of these commands, and pasting us the output will be able to accurately tell us which OS version you're running, as well if the box is 32-bit or 64-bit.
Some of the above files may not exist, but their non-existence is part of figuring out which OS you have.
In addition to figuring out the OS version you're running, we will usually ask you which OS the DirectAdmin binaries are compiled on. To figure that out, you can either go to Admin Level -> Licenses/Updates, or from ssh, you can type: