Once upon a time back in the old days, Sun caused quite a stir bydeciding that they would make the Ethernet addresses for their hardwarebe an attribute of the machine, not of the network interface. Or totranslate, Sun machines used the same Ethernet address on all of theirinterfaces instead of doing what everyone else did, which was to havea different Ethernet address on each interface. This is spec-legal butcaused various sorts of annoyances for system administrators and networkdesigners; among the set of people who

One of Unix's small problems is that it has no simple and universal wayto refer to people's home directories, especially other people's homedirectories. Some people are about to pipe up about ~user , but that'snot a universal way; support for it has to be added to every programthat will use it (and in every context where they resolve file names),and inevitably there are programs where it is not supported at all or isnot supported everywhere. Beyond that,