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Flush DNS Cache on Mac OS X

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When you enter a web address into your webrowser like “geekwithenvy.com”, the DNS (Domain Name System) changes that user-friendly name into an IP address that computers can more easily understand. Your computer doesn’t need to do this every single time you visit a website because it stores the IP addresses for many sites on your computer for a short period of time. This information is stored in what’s called the DNS cache.representations of servers to show Clear DNS Cache

Unfortunately, this stored information may become corrupt or just end up being incorrect due to changes that occur on the site’s server. If your DNS cache has incorrect IP information then you won’t be able to access the site your trying to get to because it’s looking for the website in the wrong place.

There is a quick solution to correcting your DNS cache issues and that is to force it to ask the DNS what the new IP information is. You can do this by clearing the DNS cache or “Flushing” your DNS cache.

Launch Terminal and enter the commands below to flush your DNS Cache:

Mac OS X Lion and Mountain Lion (10.7 /10.8)

  • sudo killall -HUP mDNSResponder

Mac OS X (10.5 and 10.6)

  • dscacheutil -flushcache

If you happen to be running OS X Mavericks (10.9) you will want to do this two step command:

  • dscacheutil -flushcache;sudo killall -HUP mDNSResponder

Mac OS X Yosemite (10.10) 

 (Please note: The the following command will clear your DNS Cache but there is no official confirmation from the terminal when entered.

  • sudo discoveryutil mdnsflushcache
  • sudo discoveryutil udnsflushcaches

Mac OS X Yosemite (10.10.4 and Up) use this instead:

  • dscacheutil -flushcache;sudo killall -HUP mDNSResponder

That should cover it for DNS cache issues. If you are still having problems you can always reboot your machine, this should resolve any DNS inaccuracies on your computer.

Fix in the Works for 2013 MacBook Air Wi-Fi Problem

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EarlyMacAirWifiFix

The new MacBook Air from Apple boasts all day battery life, a 4th generation Intel CPU, a super-fast SSD, a bump in graphics performance and support for the latest 802.11ac Wi-Fi technology. Unfortunately, there have been a few issues with the latter.

New MacBook Air owners are experiencing Wi-Fi connection drops on a regular basis and the only fix seems to require you to reboot your laptop. This obviously sucks and it’s one of the reasons I prefer to wait a while before buying the latest and greatest.

Fortunately, there is good news out there as AppleInsider has reported that Apple is indeed sending out invitations for MacBook Air users to join the AppleSeed program which will allow them to download a early version of  the “MacBook Air WiFi Update 1.0”. This update is most likely aimed at correcting the connection issues that early adopters have been dealing with over the last few weeks.

The 2013 MacBook Air in both sizes is currently the only laptop in Apple’s lineup that features the new 802.11ac standard.

Apple To Live Stream WWDC Keynote

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wwdc2013Logo

Apple will offering a live stream of the WWDC 2013 keynote today on the Apple website. You can also watch the live stream on the newly added “Apple Events” channel on Apple TV.

Live Streaming video requires Safari 4 or later on Mac OS X v10.6 or later; Safari on iOS 4.2 or later. Streaming via Apple TV requires second- or third-generation Apple TV with software 5.0.2 or later. If you’re looking for older videos from Apple’s past events you can find them archived here.

Intel Introduces 4th Generation Processors

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4th_Generation_Intel_Core_Close_i7_p

Intel has just introduced it’s 4th generation Core processor line and they are pushing right along with some serious gains over previous generations.

One of the most notable improvements with the Intel’s 4th generation processors has got to be power consumption. Intel has claimed that they have achieved a 50% improvement in battery life over the last generation while watching video or browsing and that could be over 9 hours . As far as standby goes, Intel says it has gained two or three times as much battery life then the last generation and in some cases they have had 10-13 days of standby on a single charge.

Let’s not forget about graphics, Intel is pushing ahead with Intel® Iris™ graphics which will double 3D performance in gaming. It looks like there will be a few different options to choose from including the the Intel HD 4600 and the faster Iris Pro 5200.

intelGraphicsNaming
Intel’s Graphics Naming (Source: Intel)

Intel’s 4th genration is focusing on 2-in-1 devices and their goal was to harness the kind of power you would normally expect on a PC but in a mobile form factor. This is exactly what’s needed in today’s mobile market and it looks like Intel has delivered on their promises. If you are patiently awaiting next weeks World Wide Developers Conference (WWDC) you can probably expect Apple to include these new processors in their announcements.

You can read Intel’s official announcement for complete details.

 

 

World of Warcraft’s New Armored Bloodwing Mount

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How about owning the “undisputed ruler of the night skies”? Blizzard is offering up the Armored Bloodwing mount for purchase from the Blizzard Store for $25. The Armored Bloodwing is a giant bat with blood red eyes and a very dark and awesome look. The mount, when purchased, will be available for all of your characters on a single account.