What do you mean "non-reentrant"? When the two calls are done in different threads, it's even funnier: you may end with an address which is half google and half facebook or complete garbage. What has replaced gethostbyname now? Indeed firefox and Chrome use their own resolves, for instance. Thanks for the insightful notes. It simply is: the resolved address. Yes if the browser use the system provided resolution. If the browser has a name resolved in its cache, the browser uses it again.
Or simply close wait a while and re-start the browser. Community Bot 1. ImHere ImHere Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast Making Agile work for data science. Stack Gives Back Featured on Meta. New post summary designs on greatest hits now, everywhere else eventually.
Linked Related 1. Hot Network Questions. The source IP address of the incoming connection is known by definition; to know the hostname, the tcpwrapper needs to perform a reverse hostname lookup. In HP-UX See man 3N getaddrinfo and read carefully the paragraph titled "Name Service Switch-based operation". If the ipnodes line does not exist, the system uses a built-in default I've been burned by this in the past, and I don't think I'm the only one I try to avoid DNS at all costs for servers.
They just don't need a lot of unique addresses so the hosts file won't need hundreds of lines. And most server situations have stable addresses, so the benefit of a central name server simply isn't worth the severe impact of a flakey DNS system. A 24x7 database becomes a mess when DNS goes awry. This can clobber a nameserver and generate a lot of meaningless traffic. Why the backup programs don't create a cache of the few machines that are clients at the start of a backup is beyond my comprehension.
Why the backup programs don't. This sounds like a good case for implementing a cache-only DNS server locally on the backup server. Set it to respond to queries from I do this for backup servers, monitoring servers and other things that need to know about a lot of hosts all over a large enterprise network.
With this configuration, your backup server will be guaranteed to always have a complete, up-to-date copy of your internal zones available locally, even if all the other DNS servers go dark. This issue occurs because of an issue in the DNS Client service. It then adds the record to the new DNS server. The DNS record is present on the new server, which is a part of the same domain. So the record isn't updated. So the new DNS server deletes the record, and the record is deleted across the domain.
Other events are logged for registration failures of host A and PTR records. Check System logs for these failures.
Such events may be logged by the clients that register these records. Or they may be logged by the DHCP servers that register the records on the clients' behalf. This behavior is by design. KB How to optimize the location of a domain controller or global catalog that resides outside of a client's site.
Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Please rate your experience Yes No. Any additional feedback? In this article. It was replaced by a different container that may first be empty or contain a subset of the records contained in the previous instance of the zone. Host "A" record is deleted when the IP address is changed.
DNS dynamic update protocol updates for existing records fail.
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