Hi. I was wondering if a standard Debian 8 system with Gnome desktop does any kind of local dns caching, and if so, what the command is for clearing it. (Assuming I haven't purposely installed any DNS server software.)
I found multiple posts on the Web about unix DNS caching, but with widely different answers across distributions and across time.
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DNS Caching on Desktop System?
Re: DNS Caching on Desktop System?
I avoid Debian 8 and GNOME so I can't say for sure, but in Whezy, whatever DNS caching was available in a plain-vanilla install was browser-based, not system-wide.
AFAIK, the most commonly used local DNS cache (not local DNS) is nscd. To see if it's installed
AFAIK, the most commonly used local DNS cache (not local DNS) is nscd. To see if it's installed
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apt-cache policy nscd-
ralph.ronnquist
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Re: DNS Caching on Desktop System?
You could also try
to see if there is UDP service for port 53 (the third column ending in :53).
I have a so far fairly pristine Debian 8 (only added palemoon and newlisp), and it does not run a local DNS. I might of course have removed while trying to improve on the 25 s boot time, but not as I can remember it.
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# netstat -n --all --programs | grep udpI have a so far fairly pristine Debian 8 (only added palemoon and newlisp), and it does not run a local DNS. I might of course have removed while trying to improve on the 25 s boot time, but not as I can remember it.