51–60 of 516 posts
Earlier quoted context omitted.
I admin a few local business sites.. I whitelist all the countries isps and the strangeness in the logs and attack counts have gone down. Google indexes in country, as does a few other search engines.. Would recommend.
Is there a public curated list of "good ips" to whitelist ?
We solved a lot of our problems by blocking all Chinese ASNs. Admittedly, not the friendliest solution, but there were so many issues originating from Chinese clients that it was easier to just ban the entire country. It's not like we can capitalize on commerce in China anyway, so I think it's a fairly pragmatic approach.
Why stop there? Just block all non-US IPs! If it works for my health insurance company, essentially all streaming services (including not even being able to cancel service from abroad), and many banks, it’ll work for you as well. Surely bad actors wouldn’t use VPNs or botnets, and your customers never travel abroad?
We have no chinese users/customers so in theory this does not effect business at all. Also russia is sanctioned and our russian userbase does not actually live in russia, so blocking russia did not effect users at all.
We solved a lot of our problems by blocking all Chinese ASNs. Admittedly, not the friendliest solution, but there were so many issues originating from Chinese clients that it was easier to just ban the entire country. It's not like we can capitalize on commerce in China anyway, so I think it's a fairly pragmatic approach.
There's some weird ones you'd never think of that originate an inordinate amount of bad traffic. Like Seychelles. A tiny little island nation in the middle of the ocean inhabited by... bots apparently? Cyprus is another one. Re: China, their cloud services seem to stretch to Singapore and beyond. I had to blacklist all of Alibaba Cloud and Tencent and the ASNs stretched well beyond PRC borders.
It wouldn't surprise me if this is related somehow. Like maybe these are Indian corporations using a Seychelles offshore entity to do their scanning because then they can offset the costs against their tax or something. It may be that Cyprus has similar reasons. Istr that Cyprus was revealed to be important in providing a storefront to Russia and Putin-related companies and oligarchs.[2]
So Seychelles may be India-related bots and Cyprus Russia-related bots.
[1] https://taxjustice.net/faq/what-is-transfer-pricing/#:~:text...
[2] Yup. My memory originated in the "Panama Papers" leaks https://www.icij.org/investigations/cyprus-confidential/cypr...
One starts to wonder, at what point might it be actually feasible to do it the other way around, by whitelisting IP ranges. I could see this happening as a community effort, similar to adblocker list curation etc.
Say you whitelist an address/range and some systems detect "bad things". Now what? You remove that address/range from whitelist? Doo you distribute the removal to your peers? Do you communicate removal to the owner of unwhitelisted address/range? How does owner communicate dealing with the issue back? What if the owner of the range is hosting provider where they don't proactively control the content hosted, yet have robust anti-abuse mechanisms in place? And so on.
Whitelist-only is a huge can of worms and whitelists works best with trusted partner you can maintain out-of-band communication with. Similarly blacklists work best with trusted partners, however to determine addresses/ranges that are more trouble than they are worth. And somewhere in the middle are grey zone addresses, e.g. ranges assigned to ISPs with CGNATs: you just cannot reliably label an individual address or even a range of addresses as strictly troublesome or strictly trustworthy by default.
Implement blacklists on known bad actors, e.g. the whole of China and Russia, maybe even cloud providers. Implement whitelists for ranges you explicitly trust to have robust anti-abuse mechanisms, e.g. corporations with strictly internal hosts.
We solved a lot of our problems by blocking all Chinese ASNs. Admittedly, not the friendliest solution, but there were so many issues originating from Chinese clients that it was easier to just ban the entire country. It's not like we can capitalize on commerce in China anyway, so I think it's a fairly pragmatic approach.
Why stop there? Just block all non-US IPs! If it works for my health insurance company, essentially all streaming services (including not even being able to cancel service from abroad), and many banks, it’ll work for you as well. Surely bad actors wouldn’t use VPNs or botnets, and your customers never travel abroad?
One starts to wonder, at what point might it be actually feasible to do it the other way around, by whitelisting IP ranges. I could see this happening as a community effort, similar to adblocker list curation etc.
- Blacklisted IP (Google Cloud, AWS, etc), those were always blocked
- Untrusted IPs (residential IPs) were given some leeway, but quickly got to 429 if they started querying too much
- Whitelisted IPs (IPV4 addresses are used legitimately by many people), for example, my current data plan tells me my IP is from 5 states over, so anything behind a CGNAT.
You can probably guess what happens next. Most scrapers were thrown out, but the largest ones just got a modem device farm and ate the cost. They successfully prevented most users from scraping locally, but were quickly beaten by companies profiting from scraping.
I think this was one of many bad decisions Pokémon Go made. Some casual players dropped because they didn't want to play without a map, while the hardcore players started paying for scraping, which hammered their servers even more.
We block China and Russia. DDOS attacks and other hack attempts went down by 95%. We have no chinese users/customers so in theory this does not effect business at all. Also russia is sanctioned and our russian userbase does not actually live in russia, so blocking russia did not effect users at all.
Earlier quoted context omitted.
Why stop there? Just block all non-US IPs! If it works for my health insurance company, essentially all streaming services (including not even being able to cancel service from abroad), and many banks, it’ll work for you as well. Surely bad actors wouldn’t use VPNs or botnets, and your customers never travel abroad?
I'm not precisely sure the point you're trying to make. In my experience running rather lowish traffic(thousands hits a day) sites, doing just that brought every single annoyance from thousands per day to zero. Yes, people -can- easily get around it via various listed methods, but don't seem to actually do that unless you're a high value target.
We solved a lot of our problems by blocking all Chinese ASNs. Admittedly, not the friendliest solution, but there were so many issues originating from Chinese clients that it was easier to just ban the entire country. It's not like we can capitalize on commerce in China anyway, so I think it's a fairly pragmatic approach.
There's some weird ones you'd never think of that originate an inordinate amount of bad traffic. Like Seychelles. A tiny little island nation in the middle of the ocean inhabited by... bots apparently? Cyprus is another one. Re: China, their cloud services seem to stretch to Singapore and beyond. I had to blacklist all of Alibaba Cloud and Tencent and the ASNs stretched well beyond PRC borders.
So the seychelles traffic is likely really disguised chinese traffic.