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DDoS Attack Against Dyn Managed DNS

dynstatus.com

71–80 of 721 posts

Re: DDoS Attack Against Dyn Managed DNS

#71
post #58

AWS says "We are investigating elevated errors resolving the DNS hostnames used to access some AWS services in the US-EAST-1 Region." Is that coincidental, or are they being DDoSed also?

Have some errors logged on our side of problems resolving DNS hostname for SES email-smtp.us-east-1.amazonaws.com

Re: DDoS Attack Against Dyn Managed DNS

#73
post #61

Earlier quoted context omitted.

I'm so damn tired of the "host it locally" mentality. Not everyone has the resources to host all of that locally. For example, most open source projects. But even outside of that, we use github for issue tracking, the new project management kanban stuff, a CI server, reading documentation (which is offline, but the online versions are nicer on the eyes), and a ton more. Not to mention that StackOverflow and other dis…

And I'm so damn tired of people complaining about cost to run stuff locally. The true cost of not having some basic stuff setup locally, even for backup purposes is when situation like this happens. It does not take long time or resources to download all of the libraries, with corresponding docs to a local server, or even your laptop. It is not complicated to have all of the new issues sent to an email to have a vers…

>And you don't need a sysadmin to administer all of that.

I disagree with that. If you have a server, you need a sysadmin. End of story.

Who is going to secure the system and setup ssh keys? who is going to run updates? who is going to monitor for security issues? who is going to run backups? who is going to secure those backups? who is going to oversee the installation of the network, the battery backups, the racks, the server hardware, etc... Who will swap out bad disks? Who will recover the system when it goes down? Who is going to double the hardware and setup high availability (remember, you are competing with github for uptime here)? And god help you if you have one guy that does all of this. What happens if he gets hit by a bus?

An on-prem server isn't a "backup", it's a liability. And without the resources to maintain it, it's going to become a nightmare. I've been there, and I won't ever do it again.

I'm either going to pay to do it right, or give it to someone who will. And if that means a few hours of downtime every year or so, then that's a wonderful tradeoff for me.

> It does not take long time or resources to download all of the libraries, with corresponding docs to a local server, or even your laptop. It is not complicated to have all of the new issues sent to an email to have a version of them available at all times.

Luckily github (and alternatives) provide all of that. It sends us emails and slack messages on everything, so if it's down, we can still read, and we all have our local repos. But reading is different than working.

Re: DDoS Attack Against Dyn Managed DNS

#74
post #68

I'm a GitHub employee and want to let everyone know we're aware of the problems this incident is causing and are actively working to mitigate the impact. "A global event is affecting an upstream DNS provider. GitHub services may be intermittently available at this time." is the content from our latest status update on Twitter ( https://twitter.com/githubstatus/status/789452827269664769 ). Reposted here since some peo…

Just being curious, why don't you use different DNS servers?

Re: DDoS Attack Against Dyn Managed DNS

#75
Semi related: I noticed this incident right when it began, but not because I was trying to access a website. This started happening to me: http://imgur.com/PPlaY5o

Then when I went to push to github out of fear my computer was about to soil itself, that failed too, and I noticed the outage.

Does anyone know if the above errors could be related to the outage? I'm using vim inside tmux with zsh as my shell. Maybe zsh does some kind of communication with gh while running?

I restarted my computer and it's still happening

Re: DDoS Attack Against Dyn Managed DNS

#76
Hmm... Seems to be quite widespread. Some of our Amazon AWS services (located in the US) that rely on SQS are reporting critical errors. Intercom.io is also down at present, which we use for support for our web apps. Not looking very good from here (in Australia).

Re: DDoS Attack Against Dyn Managed DNS

#77

Semi related: I noticed this incident right when it began, but not because I was trying to access a website. This started happening to me: http://imgur.com/PPlaY5o Then when I went to push to github out of fear my computer was about to soil itself, that failed too, and I noticed the outage. Does anyone know if the above errors could be related to the outage? I'm using vim inside tmux with zsh as my shell. Maybe zsh d…

The zsh default git plugin definitely doesn't touch github, or the network in general.

Are you using some oh-my-zsh github plugin by any chance?

Re: DDoS Attack Against Dyn Managed DNS

#78
post #52
post #44

I am confused. Are so many big websites using Dyn, or does Dyn have some special role in the DNS chain in the US?

They're widely used because they were one of the few providers of geo-aware DNS service for a long time. (These days there are other, cheaper options, including Amazon Route53.)

Other option would have been Akamai's geo-aware DNS that has been available for a long time.

Re: DDoS Attack Against Dyn Managed DNS

#79
post #68

I'm a GitHub employee and want to let everyone know we're aware of the problems this incident is causing and are actively working to mitigate the impact. "A global event is affecting an upstream DNS provider. GitHub services may be intermittently available at this time." is the content from our latest status update on Twitter ( https://twitter.com/githubstatus/status/789452827269664769 ). Reposted here since some peo…

I'm curious why you don't host your status page on a different domain/provider? When checking this AM why GitHub was down, I also couldn't reach the status page.

Re: DDoS Attack Against Dyn Managed DNS

#80
post #68

I'm a GitHub employee and want to let everyone know we're aware of the problems this incident is causing and are actively working to mitigate the impact. "A global event is affecting an upstream DNS provider. GitHub services may be intermittently available at this time." is the content from our latest status update on Twitter ( https://twitter.com/githubstatus/status/789452827269664769 ). Reposted here since some peo…

Just being curious, why don't you use different DNS servers?

Most services, even if they aren't the size of Github, can't change their DNS provider on a dime.
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