by marginalia_nu
11 subcomments
- This is extremely tangential, but I was working on setting up some manual network namespaces recently, basically manually reproducing what docker does to fix some of its faulty assumptions regarding containers having multiple IPs and a single name causing all sort of jank, and had to freshen up on a lot of Linux virtual networking concepts (namespaces, veths, bridge networks, macvlans and various other interfaces), made a ton of fairly informal notes to make myself sufficiently familiar with the thing to set it up.
Would anyone be interested if I polished it up and maybe added a refresher on the relevant layer 2 networking needed to reason about it? It's a fair bit of work and it's a niche topic, so I'm trying to poll a bit to see if the juice is worth the squeeze.
by seabrookmx
0 subcomment
- I had to read their article on "soft-unicast" before I could really grok this one: https://blog.cloudflare.com/cloudflare-servers-dont-own-ips-...
by notepad0x90
2 subcomments
- I'm slightly surprised cloudflare isn't using a userspace tcp/ip stack already (faster - less context switches and copies). It's the type of company I'd expect to actually need one.
- SLATFATF - "So long and thanks for all the fish" is a Douglas Adams quote
https://en.wikipedia.org/wiki/So_Long,_and_Thanks_for_All_th...
- Being a networking company I always wondered why did they pick Linux over FreeBSD.
- I would expect they would do the same as other big scalers, and handle most of the networking in dedicated card firmware,
https://learn.microsoft.com/en-us/azure/azure-boost/overview...
https://learn.microsoft.com/en-us/azure/virtual-network/acce...
- Tangentially related, seL4's LionsOS can now act as a router/firewall[0].
0. https://news.ycombinator.com/item?id=45959952
by sora2video
0 subcomment
- [dead]
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