ddos-attack-on-dns

Twitter, Reddit, Spotify, PSN, XBox, Netflix, Github, PayPal and bunch of other websites were offline earlier today. That’s because someone conducted a massive distributed denial of service (DDoS) attack on the Dyn DNS, a world renowned Domain Name Servers (DNS) service provider. You can read the most recent status messages at DynDNS. So far there have been two rounds of attacks today. If you’re in US Central Time, the first attack started around 7am and the second attack was around noon.

As of this writing, nobody has taken responsibility for the attacks. If you remember, earlier this month the source code for the Mirai IoT botnet was leaked and has caused a few major DDoS attacks around the world.

UPDATE: Is also appears that Level3 Communications is experiencing major outages today as well.

The current Level3 outage map at DownDetector looks like this:
downdetector

OpenDNS Alternative

If you’re still experiencing DNS issues, you can try switching to OpenDNS. OpenDNS is a DNS resolver that caches records beyond their TTL if the upstream DNS server cannot be found. In cases like today’s major outage it can be handy to swap your DNS settings out for this, or it may be worth using as a standard default. Resolution may be a bit slow as it will try to see if the upstream server cannot be found, but it at least can get you back to a working state.

Also Read: How To Change Your DNS On Windows, Mac, or Linux

The public DNS IPs are:

208.67.220.220
208.67.222.222

Sites Affected

According to Gizmodo, here’s a running list of websites their readers have had issues with today:

ActBlue
Basecamp
Big cartel
Box
Business Insider
CNN
Cleveland.com
Etsy
Github
Grubhub
Guardian.co.uk
HBO Now
Iheart.com (iHeartRadio)
Imgur
Intercom
Intercom.com
Okta
PayPal
People.com
Pinterest
Playstation Network
Recode
Reddit
Seamless
Spotify
Squarespace Customer Sites
Starbucks rewards/gift cards
Storify.com
The Verge
Twillo
Twitter
Urbandictionary.com (lol)
Weebly
Wired.com
Wix Customer Sites
Yammer
Yelp
Zendesk.com
Zoho CRM
Credit Karma
Eventbrite
Netflix
NHL.com
Fox News
Disqus
Shopify
Soundcloud
Atom.io
Ancersty.com
ConstantContact
Indeed.com
New York Times
Weather.com
WSJ.com
time.com
xbox.com
dailynews.com
Wikia
donorschoose.org
Wufoo.com
Genonebiology.com
BBC
Elder Scrolls Online
Eve Online
PagerDuty
Kayak
youneedabudget.com
Speed Test
Freshbooks
Braintree
Blue Host
Qualtrics
SBNation
Salsify.com
Zillow.com
nimbleschedule.com