Lessons learned tuning TCP and Nginx in EC2
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Lessons learned tuning TCP and Nginx in EC2
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Re: Lessons learned tuning TCP and Nginx in EC2
#2Small note - gratutious arp and traditional VIPs are available within a VPC.
Re: Lessons learned tuning TCP and Nginx in EC2
#3Small note - gratutious arp and traditional VIPs are available within a VPC.
interesting, I can't find anything that supports this. Do you have a link to a doc?
edit: or are you referring to using ENIs?
Re: Lessons learned tuning TCP and Nginx in EC2
#4Small note - gratutious arp and traditional VIPs are available within a VPC.
interesting, I can't find anything that supports this. Do you have a link to a doc? edit: or are you referring to using ENIs?
Sure, here you go. Basically, you can set up a private subnet, from which you can use any IP.
Re: Lessons learned tuning TCP and Nginx in EC2
#5Small note - gratutious arp and traditional VIPs are available within a VPC.
I would love a way to do multicast UDP in a VPC (i.e. for discovery). I've been hopeful for years..
Re: Lessons learned tuning TCP and Nginx in EC2
#6Small note - gratutious arp and traditional VIPs are available within a VPC.
It does, but it's not very useful, as you cannot have a VIP span multiple AZs and typically a spontaneous instance failure is correlated with an AZ problem. ENIs (and IPs) are tied to a subnet, which is tied to an AZ. Even the example only utilizes a single availability zone. While there may be a tiny bit of additional redundancy added by doing this, you still need a way to fail over to another availability zone.
Re: Lessons learned tuning TCP and Nginx in EC2
#7Earlier quoted context omitted.
interesting, I can't find anything that supports this. Do you have a link to a doc? edit: or are you referring to using ENIs?
Sure, here you go. Basically, you can set up a private subnet, from which you can use any IP. http://aws.amazon.com/articles/2127188135977316
It looks like this is using APIs not ARP to move the IP address; am I wrong?
Re: Lessons learned tuning TCP and Nginx in EC2
#8Earlier quoted context omitted.
Sure, here you go. Basically, you can set up a private subnet, from which you can use any IP. http://aws.amazon.com/articles/2127188135977316
It looks like this is using APIs not ARP to move the IP address; am I wrong?
that's correct as far as I understand the capabilities in VPC.
Re: Lessons learned tuning TCP and Nginx in EC2
#9Earlier quoted context omitted.
interesting, I can't find anything that supports this. Do you have a link to a doc? edit: or are you referring to using ENIs?
Sure, here you go. Basically, you can set up a private subnet, from which you can use any IP. http://aws.amazon.com/articles/2127188135977316
This isn't ARP per se as one would traditionally expect it. This is the networking in VPC handling the movement of the ENI.
Re: Lessons learned tuning TCP and Nginx in EC2
#10Check you site with Ghostery, the CSS does not load.