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  • FediTips ☃️ (@feditips@mstdn.social)

    Each network on the Fediverse is made up of lots of independent servers, called "instances". You can see all the latest public posts and boosts on your home instance by clicking "Local" at the side of the screen. It can be a good place to find new people to follow. However, on larger instances this Local feed may be an unreadable firehose of posts that scrolls far too quickly. This is why a lot of people prefer being on smaller instances that match their interests. #FediTips #Fediverse #MastoTips #Mastodon #Instances

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    Timothée Jaussoin

  • Ar chevron_right

    Understanding DNS—anatomy of a BIND zone file

    news.movim.eu / ArsTechnica · Monday, 24 August, 2020 - 10:30 · 1 minute

What does this stream of binary digits have to do with DNS? Nothing, really—but good luck finding a pretty pic somewhere that does!

Enlarge / What does this stream of binary digits have to do with DNS? Nothing, really—but good luck finding a pretty pic somewhere that does! (credit: Santo Heston )

If you want to be a sysadmin or network administrator of any kind, there's a fundamental technology you really need to understand—DNS, the Domain Name Service. There was a time when a sysadmin with no aspirations to managing Internet-accessible services might have gotten by without understanding DNS, but that time is long, long gone.

You can't learn everything there is to know about DNS in a single article. But that's not what we're looking to do today; instead, we want to give you a clear, concise guide to the structure and meaning of the most important part of the Domain Name System: a zone file, as seen in BIND, the Berkeley Internet Name Daemon.

Sample zone file

Origin and TTL

Above, we have a small but complete example of a typical zone file—in fact, it's an anonymized version of a production zone file on a domain I manage. Let's go through it line by line.

Read 46 remaining paragraphs | Comments

index?i=cNsNcKUW5xY:bUNfCURl_18:V_sGLiPBpWUindex?i=cNsNcKUW5xY:bUNfCURl_18:F7zBnMyn0Loindex?d=qj6IDK7rITsindex?d=yIl2AUoC8zA