Many epub files are not saved in optimized sizes because the intended path is that you download them to a device but if you use something like calibre-web and stream the file to readers every time you open the epub reader, you might wish some better compression was used. epubs are actually just zip files, with some very specific [...]
When you first make the jump from 1G Ethernet to 10G you will be both impressed with the speed jump and also a bit disappointed that you can’t actually send a full DVD (8GB) in a second. Bottlenecks To get better 10G speed will require resolving many input/output bottlenecks on your network ranging from your disk drives being able [...]
If you run ubuntu in command line, it doesn't auto mount usb devices like when you have the GUI up. Here is how I handle removable drives that transition between Mac, Linux and Window computers.