There are tons of ways to find things in macOS. usr/sbin/ipconfig getpacket en0 2> /dev/null | grep name_ | cut -d' ' -f3. Thanks to the lovely Allister we also have ipconfig to add to the list: Scutil -dns | grep nameserver | awk '' ipconfig We can also simplify the output to just the servers with awk: While networksetup has many advanced and complex uses, for DNS setup. Here, we use the –dns option, which outputs a lot of DNS stuffs, including all the built-in resolvers: To change DNS settings from the command line in OS X, lets use the networksetup command. The next way we’ll grab DNS information is using scutil. dns-server command, 277,279 do clear ipospf process command, 156 do show. The easiest way to see theses to simply cat it and grep for nameserver:Ĭat /etc/nf | grep nameserver scutil dynamic MAC addresses, 309 Dynamic Multipoint Virtual Private Networks (DMVPNs). The /etc/nf file is updated automatically to look at what servers are used to resolve names used for DNS. Some of this might seem more complicated than it should be. So when you’re running a script you might choose to grab DNS information one way or another, according to what you’re after. There are a number of ways to grab what DNS server a device is using in macOS. For example, something as simple as what hosts you use to resolve names on a Mac.
One of my favorite things about grabbing things with scripts is just how many ways (and sometimes how needfully or needlessly convoluted you can make them) to grab the same pieces of information.
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