Dec 10, 2017

Install and configure DNS server in Ubuntu 16.04 LTS Aug 23, 2016 linux - how to avoid NSCD for DNS - Unix & Linux Stack However, if nscd is in a hung state, it may not be able to even give that simple won't do answer, so that won't necessarily help. But that's probably the closer to what you want you will get short of disabling nscd altogether. nscd is a caching daemon, it's meant to improve performance. Disabling it would potentially make those look ups slower.

nscd(8): name service cache daemon - Linux man page

Aug 05, 2014 nscd -

ldap - Why does (package) nslcd recommend nscd? - Ask Ubuntu

To be able to flush (clear) DNS cache under Ubuntu 12.04/11.10, try one or more of these methods: Method 1 Install first the nscd daemon with this command from the terminal: sudo apt-get install nscd Then clear your DNS data with this command: sudo /etc/init.d/nscd restart Method 2 You can also try to flush DNS cache with this command: Linux: Start / Stop / Restart Apparmor - nixCraft Apr 09, 2013 Setting up nss-ldapd on Ubuntu 14.04 — Shichao's Blog May 21, 2015