Clear DNS

Difficulty
Very easy

Clear DNS

Operating Systems

Windows

XP, 2000, VISTA, 7, 8, 8.1, 10, 11

Open a Command Prompt with Administrative Privileges and type

  • ipconfig /flushdns

MAC OS

10.10

Open a Terminal and type

  • sudo discoveryutil mdnsflushcache
  • sudo dscacheutil -flushcache

10.7, 10.8, 10.9

Open a Terminal and type

  • sudo killall -HUP mDNSResponder
  • sudo dscacheutil -flushcache

10.2, 10.3, 10.4, 10.5, 10.6

Open a Terminal and type

  • sudo dscacheutil -flushcache

Linux

systemd

Open a Terminal and type *

resolvectl flush-caches

nscd

Open a Terminal and type

  • Restart service
    service nscd restart
  • Reload Service
    service nscd reload

dnsmasq

Open a Terminal and type

  • Restart service
     service dnsmasq restart

BIND

Open a Terminal and type

  • Restart service
    rndc restart
  • Flash specific domain
    rndc flushname domain.tld
  • Flash view (LAN)
    rndc flush lan

Routers

CISCO

IOS

Switch to enable mode

  • Clear specific domain
    clear host domain.tld
  • Clear all domains
    clear host *

Juniper

JunOS

  • Clear all domains
    clear dns
  • Clear specific domain
    clear security dns-cache domain.tld

FritzBox

The latest versions of the firmware do not allow for telnet, in those cases a router restart is required

Enable Telnet mode by dialing: #96*7* Connect with a telnet client to the router and type

  • Stop DNS Service
    multid -s
  • Start DNS Service
    multid

Other Hardware

Synology

DSM 6

As a root user use the following to restart named.

synoservice --restart pkgctl-DNSServer

DSM 7

As a root user use the following to restart named.

systemctl restart pkgctl-DNSServer.service

Web Browsers

Google Chrome

Visit the following URL

chrome://net-internals/#dns
In the page click on the Clear host cache button.

Microsoft Edge

Visit the following URL

edge://net-internals/#dns
In the page click on the Clear host cache button.

/home/www/sites/esgr.in/wiki/data/pages/network/clear_dns.txt · Last modified: 2021/11/19 23:52 by eServices Greece