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DigitalOcean's upstream Airtel blocks certain websites
I discovered yesterday that certain websites are blocked on DO's Bangalore (BLR) Droplets.
curl reveals it to be the work of Bharati Airtel one of DO's upstreams.
I did a packet capture with tcpdump. The SYN+ACK packet in the TCP handshake had a TTL of 55 while the HTTP response packet had a TTL of 251. So it is clear that HTTP requests are being intercepted.
I created a ticket and got the following response:
DigitalOcean doesn't impose any content filtering like this for Droplet traffic; it's something done by the ISP and outside our control. If the impact is limited to BLR1, then you may need to use another region with connectivity from different providers.
I know ISPs filter content on home/office Internet links but do they do it on data center uplinks too? That's absurd.
Comments
@Jarland
Although if this is government mandated, then what can you do ?
This blockage is from the Indian government. Don't think any provider inside India can bypass those rules.
nice catch.
Airtel are shitstains even in the carrier department apparently.
Post to /r/india too if you haven't already.
You don't actually need to use that site to download your Linux ISOs, for what it's worth. Most distributions have plenty of mirrors.
Get an IKEv2 tunnel up between this and another server, and run a split routing to these websites through the tunnel instead of eth0. Should solve your problem.
Mirror list: https://torrents.me/proxy/rarbg/
At least the upstream carrier is honest that they're blocking connection to that because the government told them instead of just dropping packets or resetting the connection.
Their response, while definitely suboptimal, is fair, there isn't much you can do about government mandated blocks.
Edit: I decided my meme was too spicy so I changed it to something productive.
These sites are blocked in India , India is not good place for torrenting and neither DO has advertised it .
It's not just Airtel. Blocked on most if not all ISPs in India. Workaround is directly going to
https://wherever possible.At the end of the day the government sets the laws, and businesses have to follow. If you have a problem with ISP level content filtering take it up with your Government representatives (assuming a fair and democratic system).
Airtel is a know offender. They have MITM attacked even Cloudflare https traffic.
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