Hello,
Hello,
In the Message;
Subject : [opensuse] How to Clear Local Nameserver Cache when other LAN IPs change?
Message-ID :
Date & Time: Mon, 20 Apr 2020 03:31:46 -0500
[DCR] == "David C. Rankin" has written:
DCR> This seems like it should be something that I know of the top of my head,
DCR> but I must not. On leap 15.0 on my laptop, I had updated a few
DCR> other boxes on the LAN. (over ssh) Upon reboot the IP for the
DCR> host I had updated changed local server on LAN running ISC dhcpd
DCR> and bind. (I'm not sure what prompted the change, but it seems
DCR> like something Linux 5.6.5 related in the way the DHCID TXT
DCR> string is calculated by the client based on the MAC? - that's
DCR> for another day)
[...]
DCR> So the problem was my laptop still holding the old IPs in
DCR> cache somewhere. What do I restart or how can I flush the cache
DCR> so my laptop has the new IP for the client so name resolution
DCR> works from my laptop? (restart nscd?, some nsswitch command? --
DCR> that's where I got stuck) I don't have any other caching daemon
DCR> running other than what Leap starts by default. So what is the
DCR> magic utility I need?
No, not a cache issue, and no utility.
You have to shorten the TTL value in the the zone file, at a moment.
Please have a look;
https://www.liquidweb.com/kb/how-to-lowering-your-dns-ttls/
Refards,
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┏━━┓彡 Masaru Nomiya mail-to: nomiya @ galaxy.dti.ne.jp
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