In some circumstances the data may become corrupt and accessing some websites might fail. This can result in your computer not being able to reach the website or it reaches an older copy of it. Well sometimes IP addresses of some websites or servers may change and your DNS resolver cache might still keep the old IP address. Why would anyone want to flush this cache? These records are cached for certain period of time and are called DNS Resolver Cache. If you want to visit that same website again, the system already knows on what IP address it’s wastes no time trying to find that out saving you time. It then stores this information for future use by creating a record consisting of one IP address and that domain name that points to that IP address is created within operating system.

Type /etc/init.d/nscd restart and hit Enter (depending on the Linux distribution you have)Įvery time you visit a website or use any software that has access to the Internet (like Skype or WhatsApp) your browser, or that software, finds out on what actual IP address is the website (or server) that you are trying to access.

Type /etc/init.d/named restart and hit Enter or.But, if you’ve already installed it you can flush the cache by running the following command in a terminal: It’s most likely not installed by default so there is no need to flush the cache. However, as a common DNS caching application sometimes used is the Name Service Caching Daemon (nscd) or. Most current Linux distributions do not use a DNS resolver cache in the same way that Windows and Mac OS X use.

Type sudo dscacheutil -flushcache sudo killall -HUP mDNSResponderHelper and hit Return.How to flush DNS cache on macOS X 10.12 Sierra and macOS X 10.13 High Sierra Type sudo dscacheutil -flushcache sudo killall -HUP mDNSResponder and hit Return.How to flush DNS cache on Mac OS X 10.11 El Capetain How to flush DNS cache on Mac OS X 10.10 Yosemite How to flush DNS cache on Mac OS X 10.9 Mavericks Type sudo killall -HUP mDNSResponder and hit Return.How to flush DNS cache on Mac OS X 10.7 Lion and Mac OS X 10.8 Mountain Lion Type sudo dscacheutil -flushcache and hit Return.Navigate to Applications -> Utilities -> Terminal.How to flush DNS cache on Mac OS X 10.6 Snow Leopard Hold Win key (windows logo key) and press letter X on your keyboard.How to flush DNS cache on Windows 8 or Windows 8.1?

Click on the Start Menu and type cmd in the search bar and hit Enter.How to flush DNS cache on Windows Vista or Windows 7? Click on the Start Menu and click Run.How to flush DNS cache on Windows XP / Windows Vista? But sometimes there is a need to flush operating system DNS cache. Browsers do cache DNS records too and to flush these the easiest way is just to close the browser and start ti again. Almost all operating systems cache DNS records to improve the performance of applications and speed up internet access.

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