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Interview with CEO of rsync.net: “no firewalls and no routers”

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Re: Interview with CEO of rsync.net: “no firewalls and no routers”

#221
post #48

I wonder if they have any sales to large enterprises or similar institutions. In my experience, the larger organizations will have a "security" questionnaire required of their vendors, and the person administering it is a droid, incapable of evaluating whether the questions, originally written in the mid-00s and only updated for buzzword compliance since, are applicable to modern security practice today, or to the pa…

Disney, 3M and ARM are on the website.

Re: Interview with CEO of rsync.net: “no firewalls and no routers”

#222
I really appreciate the information and would love more information on your architecture in particular. Also definitely love your information on your personal process and flow. Some of it seems interesting to adopt and some of it seems bad for me but I could see why you do it, some I do in similar ways but a bit differently. e.g. I use git and online services to make sure that any of my computers are completely replaceable and that I can pick up work at any moment from any one.

I can't agree more with the "no firewalls" approach to things, though I prefer to call it "host based" firewalls as it scares people less! I'm glad you've had no compliance/audit pushback on that, I architect things similarly and have had success pushing back on the requirement as well.

I'm very surprised by the l2 switches and actually choosing to run completely unmanaged switches. I assume you're running all 10G or more? Maybe i'm overthinking the complexity of your network but I would be lost without snmp counters on my switches and running switches+networking in fully l3 mode has some great isolation benefits, especially if you want full switch-level redundancy.

Do you have some more details on your data architecture? I'm very curious how do you do data direction/redundancy/sharding and balancing customer data across servers. I'm not trying to pry for things you consider secret but I think you have a very similar architectural mindset and I'm curious how you solve these things.

Re: Interview with CEO of rsync.net: “no firewalls and no routers”

#223
post #49

Earlier quoted context omitted.

I'm not sure those reasons really apply to their case. Especially since they're running the boxes that it's connected to. They can do resiliency, network segmentation, and monitoring on their platform. What's a Cisco box going to do for them?

Dumb switches will blast packets to all interfaces that are connected. If there's a machine on the switch that's in promiscuous mode, it can see all the packets on the local network (including the backups coming in from customers). Managed switches typically have ACL support. I get the KISS principle, but this setup seems to be trading security for simplicity.

You may mean repeater hub.

Re: Interview with CEO of rsync.net: “no firewalls and no routers”

#224
post #48

I wonder if they have any sales to large enterprises or similar institutions. In my experience, the larger organizations will have a "security" questionnaire required of their vendors, and the person administering it is a droid, incapable of evaluating whether the questions, originally written in the mid-00s and only updated for buzzword compliance since, are applicable to modern security practice today, or to the pa…

> Never mind that a KISS setup tends to bring security because of its minimized attack surface

Security is also about depth. You should assume breaches can happen and have another level of defense.

That only increases the attack surface but it's a much better approach for imperfect beings.

Re: Interview with CEO of rsync.net: “no firewalls and no routers”

#225
post #98

I always liked this set of marketing materials. But I also see where they conflict with my experience. "You may visit our datacenters any time you like for a personal tour and inspection to satis[f]y whatever due diligence requirements you may have" probably appeals to many customers, but for my dollar I would prefer a datacenter that nobody may enter.

Presumably the racks are in cages and visitors aren't able to actually touch them.

Re: Interview with CEO of rsync.net: “no firewalls and no routers”

#226
post #48

I wonder if they have any sales to large enterprises or similar institutions. In my experience, the larger organizations will have a "security" questionnaire required of their vendors, and the person administering it is a droid, incapable of evaluating whether the questions, originally written in the mid-00s and only updated for buzzword compliance since, are applicable to modern security practice today, or to the pa…

> In my experience, the larger organizations will have a "security" questionnaire required of their vendors, and the person administering it is a droid, incapable of evaluating whether the questions, originally written in the mid-00s and only updated for buzzword compliance since, are applicable to modern security practice today, or to the particular product/service/vendor in question. And in many cases on the vendor…

Which seems somewhat questionable. It seems like you’d want someone to fill it out that had a less direct interest in a closed sale. Getting hacked is one thing but getting caught lying on a security evaluation could really harm the company’s ability to secure future enterprise customers.

Re: Interview with CEO of rsync.net: “no firewalls and no routers”

#229
post #53

Earlier quoted context omitted.

"I wonder if they have any sales to large enterprises or similar institutions." Yes, certainly. We frequently fill out very detailed checklists and questionnaires related to our quality policy, standards, internal policies, etc. We're also very honest about how we approach these issues: https://www.rsync.net/resources/regulatory/pci.html ... and they generally appreciate the honesty.

It’s hilarious that the first "vulnerability" in the example report[0] linked in this page is basically "SSH is accessible". Well… Duh ! [0] https://www.rsync.net/resources/regulatory/PCI_usw-s005_repo... EDIT: It’s marked as "PASS" though, so it’s all fine, just funny.

I did a job where I was given access to a server in the form of a set of credentials for an HPE iLO, which was accessible over the Internet. From there, we could use the remote console to logon as root.

HPE iLO doesn't support MFA or any form of public key authentication, and its security history is much worse than SSH. It requires several ports open and the old version they had required Java plugins on desktops and all sorts of nonsense. Using it outside of emergency repairs is a terrible experience due to console refresh lag and the fact you can't copy + paste.

The reason I had to do this insecure and annoying process is that a PCI assessor had told them it would be a hard fail to have port 22 open on the Internet, but this would apparently be fine.

Re: Interview with CEO of rsync.net: “no firewalls and no routers”

#230
post #48

I wonder if they have any sales to large enterprises or similar institutions. In my experience, the larger organizations will have a "security" questionnaire required of their vendors, and the person administering it is a droid, incapable of evaluating whether the questions, originally written in the mid-00s and only updated for buzzword compliance since, are applicable to modern security practice today, or to the pa…

> Never mind that a KISS setup tends to bring security because of its minimized attack surface Security is also about depth. You should assume breaches can happen and have another level of defense. That only increases the attack surface but it's a much better approach for imperfect beings.

In my experience that approach actually ends up leading to weaker security. When you have 5 or 6 security layers it's not clear which ones are important; people get confused about which parts can be safely bypassed and how, and you end up with a swiss cheese where sooner or later all of the holes line up. Having a really clear distinction between public and private services works better.
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