How to flush DNS cache in Yosemite?

[phillies262834]

Hello all! I was wondering if anyone has the Terminal command to flush the DNS cache. I ask this because imgur pictures are not loading at all, and this was one of the suggestions that I found. However, the commands provided by Apple here http://support.apple.com/kb/HT5343 do not work in Yosemite.

One last thing, please do not pull out the "You shouldn't be running OS X beta on your main machine" card. I know the risks, and am using it legally as an iOS dev.

Thanks!

 

[nicky0]

According to http://blog.wwwjfy.net/2014/06/03/some-solutions-to-some-problems-in-yosemite-beta/, to fluch the DNS cache you can use:

sudo discoveryutil mdnsflushcache

 

[snarfquest]

sudo discoveryutil mdnsflushcache is not working for me any more in DP7.

However

sudo discoveryutil udnsflushcaches

has the desired result.

 

[umangd]

I tried clearing dns cache by sudo discoveryutil udnsflushcaches, but it hangs on my system! Also, both mdnsresponder plist and /usr/sbin/mdnsresponder are missing in PB3! I am unable to get ping and curl working on PB3. nslookup and dig work fine though. Any help?

 

[markymark1]

Try this command in Terminal.app it worked on may macbook

dscacheutil -flushcache

http://www.ihash.eu/2014/06/clear-dns-cache-mac-osx-10-10-yosemite/

 

[WaterZen]

To view the DNS cache on macOS Sierra, I had to run the following command for it to dump the DNS cache into the Console app:

sudo killall -INFO mDNSResponder

Check out the instructions here: https://stackengineer.com/macos/dns-troubleshooting.html