IC Knowledge Base

How to flush the DNS Cache on a variety of platforms

How to flush the DNS Cache

 

 

Clear Chrome DNS Cache

Chrome has internal DNS Cache, separate to the operating system

# Browse to... chrome://net-internals/#dns and click 'Clear host cache'
# Browse to... chrome://net-internals/#sockets and click 'Flush Socket Pools'

 

 

Clear Dnsmasq DNS Cache

sudo killall -SIGHUP dnsmasq

  

Clear Firefox DNS Cache

# Browse to... about:config and set network.dnsCacheExpiration to 0 and then back to the default (usually 60)

  

Clear Windows DNS Cache

ipconfig /flushdns

  

Clear PowerDNS Recursor DNS Cache

# A specific FQDN

rec_control wipe-cache <domain>

# A specific FQDN and anything under it i.e. *.domain.com

rec_control wipe-cache <domain>$

# All records

rec_control wipe-cache $

  

Clear BIND DNS Cache

rndc flush

 

Mac 10.4 

Open Terminal.

  • Type:lookupd -flushcache
  • Hit the return key and the process is complete.
  • The Terminal window can be closed.

We would then ask you to check your network connection settings on your machine, ensuring the DNS server addresses are manually set, as this specifies exactly where your machine looks to resolve site names:

For IC.UK customers, these are available here :

 

 


It may also be worth trying an alternative web browser like Firefox, to negate any possible issues with your current browser, eg. Internet Explorer.

If you are still having trouble browsing websites or one particular site, open up your internet browser and surf to a website which is NOT the one you need to access. Close down the other tabs if you are using tabbed browsing. Now clear your internet browser cache - inInternet Explorerthis is done throughTools->Internet Optionsthen choose "Delete browsing history". Remove everything you can from here. InFirefoxchooseTools->Clear Private Data.

0 (0)
Article Rating (No Votes)
Rate this article
Attached Files
There are no attachments for this article.
Comments
There are no comments for this article. Be the first to post a comment.
Name
Email
Security Code Security Code
Related Articles RSS Feed
DHCP
Viewed 1456 times since Wed, Aug 2, 2017
Connectors
Viewed 4330 times since Tue, Jul 25, 2017
Slow Speed Broadband
Viewed 1737 times since Wed, Jul 26, 2017
Fibre-types
Viewed 1619 times since Fri, Jul 21, 2017
BT Terminology
Viewed 8021 times since Fri, Jul 21, 2017
Packet Loss
Viewed 1605 times since Wed, Jul 26, 2017
Modems Vs Routers
Viewed 1665 times since Tue, Aug 22, 2017
Speed Testing your connection.
Viewed 261 times since Mon, Aug 24, 2020
Wireshark Trace for Fault Finding
Viewed 5211 times since Tue, Jul 25, 2017
Cables and Wiring
Viewed 10142 times since Tue, Jul 25, 2017
Internet Central Limited, Innovation Centre, Keele Science Park, Keele, Staffordshire ST5 5NB
Registered Office: Ivy House Foundry, Hanley, Stoke-on-Trent, ST1 3NR
Registered in England: Reg No. 03079542 VAT Reg No. GB 278 923 705
Contact Us |Terms & Conditions |Legal, Privacy and Cookies
All prices exclude VAT E.&O.E © 2015 Internet Central

All trademarks and logos appearing on the site are the property of their respective owners