Dyn Blog
dyn.com · Company blog · on HN since 2010
Dyn, a DNS and internet infrastructure company, posts about DNS, dynamic DNS, traffic management, and internet routing.
What HN saysHN commenters mention Dyn as a dynamic DNS provider and for its DynECT service and active failover, which supports CNAME failover.
71HN people shared it
37linked it in comments
38stories submitted
826story points
7 years agolast shared
2010people per year2026
Most-shared posts
- 1Homepage6 people · first shared 2012
- 2Everything You Ever Wanted to Know About DNS TTLs3 people · 8 points · first shared 2015 · 1 comments on HN
- 3Dns3 people · first shared 2012
- 4Dyn Decided To Stop Offering Free Accounts for Dynamic DNS2 people · 71 points · first shared 2014 · 32 comments on HN
- 5How To Build A Startup Ecosystem In A Small City2 people · 4 points · first shared 2012 · 1 comments on HN
- 6Introducing the Internet Intelligence Map2 people · 4 points · first shared 2018 · discussion on HN
- 7EveryDNS sold to DynDNS2 people · 1 points · first shared 2010 · discussion on HN
- 8Shutting Down the BGP Hijack Factory1 people · 218 points · first shared 2018 · 61 comments on HN
- 9ACE Submarine Cable Cut Impacts Ten Countries1 people · 166 points · first shared 2018 · 103 comments on HN
- 10Widespread impact caused by Level 3 BGP route leak1 people · 148 points · first shared 2017 · 34 comments on HN
- 11Advanced secondary DNS for the technically inclined1 people · 49 points · first shared 2017 · 5 comments on HN
- 12EveryDNS sold to Dyn Inc.1 people · 38 points · first shared 2010 · 20 comments on HN
- 13Dyn Takes a Public Stand Against SOPA1 people · 33 points · first shared 2011 · 1 comments on HN
- 14EveryDNS/EditDNS Nameservers shutting down on Sep 9, 20111 people · 21 points · first shared 2011 · 10 comments on HN
- 15Dyn post mortem1 people · 17 points · first shared 2016 · 2 comments on HN
What HN people wrote when they linked it
mtmail · 2020-03-17
Look for 'dynamic DNS' providers. Bascially you have software on your server which will check if it still has the same public IP address and if not it will tell the DNS provider to update the mapping.
https://dyn.com/ used to be market leader, well, when it was free. You should still be able to find some free providers https://www.maketecheasier.com/best-dynamic-dns-providers/ (not affiliated).
corford · 2015-03-17
Check out DynECT from http://www.dyn.com
Twitter, Mozilla and lots of other big names use them. I remember watching a webcast where Mozilla said they used Dyn's anycast failover service, with TTLs on their domains set to 5 seconds.
I've been using their DynECT entry level package ($30/month) for a couple of years and it's great.
Edit: you might also find this comment from an old thread interesting/useful: https://news.ycombinator.com/item?id=7813589 (go up two levels to phil21's first comment - HN isn't giving me a direct link sadly)
justinsteele · 2014-01-02
For what it's worth, I got to that page by clicking "Email Delivery Express" via their dropdown from their homepage - http://dyn.com/
If you click the link in the article it still is the older version.
peterwwillis · 2019-07-02
How to implement a multi-CDN strategy (streamroot.io): https://news.ycombinator.com/item?id=18399523
Etsy implementing multiple CDN (7 years ago, the CDNcontrol project looks abandoned): https://speakerdeck.com/ickymettle/integrating-multiple-cdn-providers-… https://dyn.com/blog/speaking-with-etsy-about-multi-cdns-and-dns/
Basically: you can try to keep a low TTL DNS, but it'll be more DNS traffic, and 5-10% of traffic takes forever to cut over because nobody respects TTL. Worst case you have just as much down time as before, best case most of your traffic is recovered in a few minutes.
edaemon · 2018-11-07
I don't think Cloudflare Load Balancing can do this (yet), but Dyn can: https://dyn.com/active-failover/
The crucial part is CNAME compatibility. Most DNS services I've had experience with can only do failover between IPs.
riteshpatel · 2014-12-22
It's nice having cheap/free DNS from people like Rackspace and Amazon, but situations like these make you realise that it's sensible to use a company like Dyn (http://dyn.com/) that are experts in highly-available DNS, rather than something that's a small part of a hosting provider's services.
It's easy to forget that you can have redundancy in your load balancers, web servers and databases (replication, multiple data centres, etc), but DNS is how you're found by the rest of the Internet.
No DNS resolution = no one reaches your expensive, lovingly-crafted infrastructure.
nullrouted · 2014-06-03
I've used nearly every domain registrar out there and here are the ones I'd recommend:
http://www.uniregistrar.com (two-factor, free privacy, cayman islands)
http://www.easydns.com (two-factor, canadian)
http://www.pairnic.com (super lock, requires id to unlock if you enable it)
http://www.dyn.com
http://www.namebright.com (two-factor)
http://www.name.com (two-factor)
http://www.gandi.net (two-factor)
Security is really important for your name so make sure you go with someone who offers some sort of two-factor or extra security lock.
jonalmeida · 2014-03-02
This is a great idea that I've been think about myself.
Regarding your friend, he can still create 2 free host domains and runs DynDNS updater [1] to change the IP address as it changes on his server.
[1]: http://dyn.com/support/clients/
jakeludington · 2012-09-10
Since when does trusting a business critical function to a free service make any sense? At least GoDaddy has a motivation to provide some level of service because people are paying them.
Some other alternatives that aren't free, but are highly reliable are:
http://dyn.com/
http://www.dnsmadeeasy.com
I use the latter one and in addition to providing an alternative to my registrar, they also seem to have much faster response times, which cut some milliseconds off a site lookup.
larrys · 2013-03-22
Why do you feel it was dyn? I got that email and didn't remember it referring to anything in particular. I just took another look and here is the copy:
"In today's demand-driven marketing world, getting email into the inbox and sending that email is as crucial as turning on the lights in the morning. Social media is awesome, but when it comes to the most trusted form of communication with customers, prospects and fans, email wins hands down.
See that graphic above? That's a screenshot from about an hour ago, a visual representation of where emails sent through our servers are being read at that instant around the world. At a billion+ messages sent a month, there's no better time to move your email delivery services to Dyn.
We've relaunched our packages, introducing an entry-level option for just $3 per month -- roughly the amount of a large coffee. Isn't your transactional email program worth more than that?
It's time to deliver through Dyn. Sign up now. Send today. Be successful tomorrow."
Explain why you feel that a) dyn sent this in reaction to the "situation" and b) even if they did how this was a bad thing.
By the way here is the dyn.com blog post I'm not seeing anything there that dovetails and makes them the company the OP is referring to:
http://dyn.com/blog/email-delivery-dynect-deliverability-scalability-i…
amc3456 · 2011-12-30
DynECT Email (http://dyn.com/enterprise-email/dynect-email)
Many of our clients rely on email to drive their revenue, as that may be the case for you folks as well. We solve this very specific problem by ensuring delivery of their email to the intended destination (the INBOX!). We are able to ensure deliverability of large email quantities by working with hundreds of ISPs, monitoring bounces, improving and maintaining sender scores and many other specifics with a product called SmartMTA. Any incremental increase in your email delivery rate has a direct impact on your bottom line.
There are many vendors who do a great job helping folks manage lists, content and templates, but there is nobody out there who does as good a job as us ensuring delivery and providing analytics. We are working with over 1,000 Enterprise Level Accounts, including Twitter, Netflix, Groupon, Pandora, Photobucket, Mashable, Zappos and many more. We currently have clients that do anywhere from 50,000 emails to 400+ million emails a month! And did I mention no downtime since our inception?
Feel free to ping me at [email protected] to chat about your business needs!
betaby · 2020-04-06
Not really, see some explanation there https://dyn.com/blog/iran-leaks-censorship-via-bgp-hijacks/ and there
https://www.youtube.com/watch?v=IzLPKuAOe50
bobbiechen · 2019-05-10
As briefly mentioned in the article, SOPA proposed DNS-level blacklisting against copyright-infringing websites. But the fact that you are able to choose what DNS server you use almost guarantees that at some point someone would set up a DNS server outside of the US that would bypass these blocks anyways.
Savvy users could simply bypass a SOPA-enabled recursive DNS server by pointing their DNS settings to an off-shore recursive DNS server... What would happen to users if an infringer decided to setup a “free, non-SOPA” recursive DNS server for users to use – one that additionally hijacked legitimate banking, ecommerce and business websites, too? [1]
[1] https://dyn.com/blog/sopa-breaking-dns-parasite-stop-online-piracy/
josefresco · 2019-03-12
I too was curious about competitors so I searched and found the following (there are lots more). Granted some of these probably don't overlap perfectly with CF, but they do offer at least "hosted dns":
https://cloud.google.com/dns/
https://www.godaddy.com/hosting/premium-dns
https://azure.microsoft.com/en-us/services/dns/
https://dyn.com/dns/managed-dns/
https://www.namecheap.com/domains/freedns/ (free option)
gvb · 2019-02-12
At a previous job, I had this problem as well. A few filter providers block extremely aggressively and are totally unresponsive to requests.
I ended up "routing around" their brokenness by using an email delivery service (search for "email delivery service") for emails that went to domains for whom they provided filtering service.
The one I used ended up being bought by dyn https://dyn.com/email/ - the service worked well several years ago, no idea if they are still good. Amazon has SES (https://aws.amazon.com/ses/). There are quite a few others.
cronix · 2018-11-05
jlgaddis · 2018-10-17
I was going to link to the video of a Dyn employee (Todd whatshisname) doing a parody of American Pie about this -- "The Day The Youtube Died" -- but the only link I have to the video is on Youtube. :/
Here are the lyrics [0] instead, you'll just have to sing it to yourself.
[0]: https://dyn.com/blog/the-day-the-youtube-died-1/
falsedan · 2018-04-30
Mikrotik sometimes do things differntly to how you might expect[0]… though that was how I found out about them, and have been happily managing a hEX lite for a while now.
0: https://dyn.com/blog/longer-is-not-better/, previous discussion https://news.ycombinator.com/item?id=490924
KayEss · 2018-04-24
Dynamic updates. So long as you're not behind carrier NAT you can find your IP number and update a DNS record. Many DNS providers have a specific service for this, e.g. https://dyn.com/dynamic-dns/ (no affiliation, just used them many years ago for this service).
Many ISPs are switching to carrier NAT though and then you can't host as you don't have a routable IP number.
vitus · 2017-08-27
Of course it's still hackable. There's nothing stopping you from advertising specific prefixes and hijacking all of Youtube traffic globally.
https://dyn.com/blog/pakistan-hijacks-youtube-1/
Oh wait, that happened almost a decade ago, and there's been no fundamental change to the protocol to protect against that. Except, if you keep something like that in place persistently, nobody will want to peer with you.
* My understanding is that the global hijack was accidental. Pakistan Telecom just wanted to block Youtube traffic internally, and they used a bad mechanism for doing that. Oops.
djhworld · 2016-10-22
I think it's about time they updated http://dyn.com/ddos/
It was an unprecedented attack, sure, but I'm not sure how their sales guys are going to spin this.
snug · 2016-10-21
Depends on how many PoPs they have. Looks like they have 4 easter US.[0] If they are seeing large attacks that Krebs saw a few weeks ago, that could certainly be enough to take down one or two, and then causing redirected traffic to take down the other two.
I used to work for a DNS/DDoS provider, and this was a very real problem. Leave the PoPs that are being affected out, or risk overloading the other PoPs by overloading real traffic.
Before moving the other traffic, you also have to worry about blocking the DDoS traffic otherwise you're just redirecting them to the other PoPs. Mitigating DDoS attacks are not fun, and hard to block.
[0]http://dyn.com/dns/network-map/
krallja · 2014-07-01
Dyn permanently ended its free hostname program in May 2014, with 30-day notice given on April 7. http://dyn.com/blog/why-we-decided-to-stop-offering-free-accounts/
tszming · 2014-04-29
When you need a reliable & low-latency DNS for your services, you need Anycast DNS - not the one bundled with your GoDaddy's domain, see the differences between Anycast DNS & Unicast DNS: http://dyn.com/blog/unicast-vs-anycast-dns-nameserver-routing/
deno · 2013-05-11
Just get a backup MX. http://dyn.com/email/dyn-email-backup-mx/
jauer · 2013-04-06
They could be charging for convenience, a pretty UI, etc.
To name a few of the more popular ones that charge that I'm aware of:
Amazon Route53: http://aws.amazon.com/route53/faqs/#Route_53_anycast
Dyn (right below the price)
http://dyn.com/dns/dynect-managed-dns-lite/
DNS Made Easy: http://www.dnsmadeeasy.com/technology/ip-anycast/
EasyDNS: https://web.easydns.com/dns_management/?icode=dnshosting
kysol · 2012-11-28
That would be something like: http://dyn.com/support/clients/linux/ddclient/
ceol · 2012-11-28
If you have a dynamic IP, Dyn offers DNS services[0] that let you tie a domain to it through them. I believe it requires you to install something on your machine that monitors your IP and reports it back.
Otherwise, you just use your IP and make sure to edit the DNS yourself when it changes.
[0]: http://dyn.com/dns/
sciurus · 2012-11-05
Why are you comparing this to a registrar? The service NameTerrific is offering is primarily managed DNS, not registration. A better comparison would be to Dyn.
http://dyn.com/dns/dns-comparison/