What you need to know is what operating system version originally came on the machine from the factory, not when you purchased it. (MacTracker will you this, but it only runs on a Mac, not a PC.) Mac's that came with 10.6.2 or earlier (including 10.4 and 10.5) can use the 10.6 white retail disk.
Network name is the unique name that differentiate a MAC or PC on a network. If you have more than one MAC and you start sharing things back and forth between your computers, the names of those MACs start to matter.
Network name is the unique name that differentiate a MAC or PC on a network. If you have more than one MAC and you start sharing things back and forth between your computers, the names of those MACs start to matter.
On Mac OS X, changing computer name is extremely easy. How to change it? Just open up System Preferences, go to Sharing, and change the computer name. You may need to change the name under your Network setting also. Open Network (next to Sharing), Advanced, WINS, and change the NetBIOS name. Done!
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With macOS Catalina and many recent macOS - the built in tools guide everyone how to reset admin permissions without needing any of the single user mode boot tricks of old (left at the bottom for posterity and people running OS that were shipped before 2015). Enter the account name: This used to be called the Short Name and was usually a contraction of the full name without any spaces or punctuation. You can enter any name you wish, but I suggest a short name without any spaces, such as your first initial and last name. On a boot/restart everything works fine; my Mac gets DNS resolutions properly. But after the Mac goes to sleep, or sits for an extended period, it forgets about the internal DNS server and queries external servers. A re-apply in the Network PrefPane resolves the problem until the next time the Mac sleeps. Your Mac's hosts file is a small but important text document that has the ability to map hostnames to specified IP addresses. While the modern Internet uses a variety of public and private DNS.
