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0 pointsbenjojo124y ago0 comments

To add on, BGP has a very much "meme" status of being scary and dangerous, and any touching will break youtube etc. [Mostly perpetuated by infosec circles]

It's really not the 2000's anymore, BGP is mostly safe and filtered. There are still improvements to be made (I've even written on the blog about them), but one persons immense fuck ups are far less likely to cause issues now that IRR filters and prefix limits exist.

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JadeNB4y ago

> It's really not the 2000's anymore, BGP is mostly safe and filtered. There are still improvements to be made (I've even written on the blog about them), but one persons immense fuck ups are far less likely to cause issues now that IRR filters and prefix limits exist.

Any non-maliciously designed protocol probably can be used safely, but surely yesterday's events show that it is still eminently possible to use BGP dangerously?

benjojo12OP4y ago

What part of yesterday was showing that it was possible to use BGP dangerously?

If you are certain in this argument, then you master electric switch is dangerous because you could switch off the power to your house.

JadeNB4y ago

> If you are certain in this argument, then you master electric switch is dangerous because you could switch off the power to your house.

This seems like a response to an argument I haven't made yet! (All else aside, if you prebut my argument, it allows me not to make that argument.)

Sure, it's possible to do dangerous things with BGP; that alone is not why I say it's possible to use it dangerously. What is dangerous is the fact that a small and apparently innocent change can have such far-reaching consequences—for example, I'll bet there was no serious consideration at Facebook of not being able to open electronic door locks in the case of an apparently innocent BGP update.

I don't consider my master electric switch dangerous because I could switch off the power to my house. I would consider it dangerous if, after switching off the power to my house, I was ejected from my house, and could no longer open the doors of my house to get in and switch the power back on.

HideousKojima4y ago

>for example, I'll bet there was no serious consideration at Facebook of not being able to open electronic door locks in the case of an apparently innocent BGP update.

If that was actually the case, a lot of heads at FB should roll over this. The logic is simple and obvious, and if the sysadmins and network admins didn't think about this line of thinking then they're overpaid:

1) Our door control system is accessed via a public IP/address, not via an internal/private address.

2) Accessing our public IPs/addresses is dependent on BGP and DNS not getting borked.

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HideousKojima4y ago

What happened yesterday was (appears to be) Facebook screwing up their own routing and DNS, not anyone else's. They didn't take down routing for any IPs and domains they didn't own. I can't imagine any other protocol making a mistake like FB's impossible

j / k navigate · click thread line to collapse

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JadeNB4y ago

Any non-maliciously designed protocol probably can be used safely, but surely yesterday's events show that it is still eminently possible to use BGP dangerously?

benjojo12OP4y ago

What part of yesterday was showing that it was possible to use BGP dangerously?

If you are certain in this argument, then you master electric switch is dangerous because you could switch off the power to your house.

JadeNB4y ago

> If you are certain in this argument, then you master electric switch is dangerous because you could switch off the power to your house.

This seems like a response to an argument I haven't made yet! (All else aside, if you prebut my argument, it allows me not to make that argument.)

HideousKojima4y ago

>for example, I'll bet there was no serious consideration at Facebook of not being able to open electronic door locks in the case of an apparently innocent BGP update.

1) Our door control system is accessed via a public IP/address, not via an internal/private address.

2) Accessing our public IPs/addresses is dependent on BGP and DNS not getting borked.

1 more reply

HideousKojima4y ago

j / k navigate · click thread line to collapse