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Roll Your Own CDN
- ambrop7 12y agoIt must be so hard to expand the abbreviation once.
- rdl 12y agoI think more people know "CDN" than the expansion (Content Distribution/Delivery Network). Same is probably true for ATM (financial or 53-byte cell), POP, DNS, RFP, RFC, IMAP, SSL, ...
- pushrax 12y agoIf you want to cut down on DNS-induced latency, Route 53 is a fairly good option. Their latency-routed DNS doesn't perfectly map to all geographical zones, but it works fairly well for DigitalOcean's locations. I wish it was easier/cheaper to run your own anycast network...
- opendais 12y agoRoute 53 now does GeoDNS so you can map it more accurately, for a few cents more. http://aws.amazon.com/route53/pricing/ http://aws.amazon.com/route53/pricing/
- rdl 12y agoI wonder if "run your own anycast network as a service" would ever make sense as a product. I can't see anyone other than CDN or testing being terribly interested, and a lot of this is included in the raw CDN use case.
- opendais 12y agohttps://rage4.com/Home/ANY https://rage4.com/Home/ANY Is that what you are looking for? They only have 3 locations tho.
- pushrax 12y agoLooks a bit like a one person shop – not exactly what you're looking for while building a high availability system.
- opendais 12y agohttp://www.linkedin.com/company/rage4-networks-limited http://www.linkedin.com/company/rage4-networks-limited 2 person shop. ;) That said, some people on lowendtalk swear by them and they usually are the first to complain about not getting 100% uptime on a $7 a year VPS.
- samcrawford 12y agoThere is at least one already out there - http://www.hostvirtual.com/anycast-bgp-cloud/ http://www.hostvirtual.com/anycast-bgp-cloud/. You have to bring your own IP space (/24 minimum of course). I vaguely remember reading the charges were in the low thousands of dollars per month, but that was a while ago.
- Blackthorn 12y agoPlease do not run your own DNS server if you do not have the knowledge or expertise to properly secure it. It is extremely irresponsible, and the article is also irresponsible for suggesting it and not having any information about rate limiting.
- kev009 12y agoUse nsd. If you just run an authoritative only service, it is easy to do correctly.
- joesavage 12y agoFor the record, the setup shown with PowerDNS is authoritative-only too.
- kchoudhu 12y agoI run a recursing DNS server behind a firewall for my home servers -- is this risky?
- mcpherrinm 12y agoIf nobody can query the server from behind the firewall, you're fine. Nearly every home router runs a copy of dnsmasq as a recursive resolver for the users on the local network.
- driverdan 12y agoPlus your DNS servers (you are running more than one right?) are never going to be as fast as Route 53 and the ilk. Spend the $5/m and use a real DNS host.
- mey 12y agoDo you have any suggestions/articles on where people can learn how to run a DNS safely?
- Blackthorn 12y ago
- le 12y agoThis is a neat article, but 'CDN' is such a broad term. This is much more a very well done proof of concept article, but fails to take into account the huge scope of a large scale CDN, and all associated quirks it comes with.
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- dgl 12y agoThe Powerdns geo backend as mentioned by the article is used by wikipedia among others. I have some additions (e.g. Google Public DNS), see the files at https://gist.github.com/dgl/8344c3ebe405a1400e2d https://gist.github.com/dgl/8344c3ebe405a1400e2d (which also has the rsync location for the original). [edit: now I read the article again I notice the author is assuming 'eu' is going to get all of EU, it won't. There need to be entries for each country.]
- kuon 12y agoI'd like to point out that google DNS among others uses anycast and are in reality composed of multiple servers geographically distributed, even if there is a single IP.