Check if DNS caching is enabled or disabled?

Ryan_G

• August 31, 2020 09:59

Is it possible to check if DNS caching is enabled with WHM? I have read this

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  Ryan_G

  • September 01, 2020 13:03

  Anyone?

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  cPanelLauren

  • September 02, 2020 18:26

  The nscd configuration would let you know this at /etc/nscd.conf

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  Ryan_G

  • September 02, 2020 18:58

  Thanks for your help - I managed to get this (file contents below). Am I right in thinking that 'hosts' is the section that refers to DNS caching and that this shows that DNS caching is on? # # /etc/nscd.conf # # An example Name Service Cache config file. This file is needed by nscd. # # Legal entries are: # # logfile # debug-level # threads # max-threads # server-user # server-user is ignored if nscd is started with -S parameters # stat-user # reload-count unlimited| # paranoia # restart-interval # # enable-cache # positive-time-to-live # negative-time-to-live # suggested-size # check-files # persistent # shared # max-db-size # auto-propagate # # Currently supported cache names (services): passwd, group, hosts, services # # logfile /var/log/nscd.log # threads 4 # max-threads 32 server-user nscd # stat-user somebody # reload-count 5 paranoia no # restart-interval 3600 enable-cache passwd yes positive-time-to-live passwd 600 negative-time-to-live passwd 20 suggested-size passwd 211 check-files passwd yes persistent passwd yes shared passwd yes max-db-size passwd 33554432 auto-propagate passwd yes enable-cache group yes positive-time-to-live group 3600 negative-time-to-live group 60 suggested-size group 211 check-files group yes persistent group yes shared group yes max-db-size group 33554432 auto-propagate group yes enable-cache hosts yes positive-time-to-live hosts 3600 negative-time-to-live hosts 20 suggested-size hosts 211 check-files hosts yes persistent hosts yes shared hosts yes max-db-size hosts 33554432 enable-cache services yes positive-time-to-live services 28800 negative-time-to-live services 20 suggested-size services 211 check-files services yes persistent services yes shared services yes max-db-size services 33554432 enable-cache netgroup yes positive-time-to-live netgroup 28800 negative-time-to-live netgroup 20 suggested-size netgroup 211 check-files netgroup yes persistent netgroup yes shared netgroup yes max-db-size netgroup 33554432

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  cPanelLauren

  • September 09, 2020 18:36

  You'd be correct, but check the man page for information on how this is configured, just because I believe it's valuable to understand the whole rather than just he part nscd(8): name service cache daemon - Linux man page

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