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2 yr. ago

  • You aren't giving us enough information to even speculate the answer. Are these Enterprise grade servers in a datacenter? Are these home made servers with consumer or low grade hardware you're calling servers? Are they in the same datacenter or do they go out to the Internet? What exists between the hops on the network? Is the latency consistent? What is the quality of both sides of the connection? Fiber? Wi-Fi? Mobile? Satellite?

    Does it drop too nothing or just settle into a constant slower speed? What have you tried to trouble shoot? Is it only rsync or do other tests between the hosts show the same behavior?

    Give us more and you might get some help. If these hosts are Linux I would start with iperf to do a more scientific test. And report to us some more info.

  • I think the originator of it was on dslreports but I couldn't find the link on mobile. I'm sure if you can search on Google you could find a secondary source for some tech blog or medium about it if that makes you feel better. There's also a discord that covers most xgs-pon bypass methods that I could share too. They keep turning it to private at times for whatever reason.

    Other links and info of you are being serious and not passive aggressive. ATT is quick with DMCA takedowns so that's probably why the info can be fleetingly available at times but dslreports seems to be pretty reliable/resistant to them.

    https://www.dslreports.com/forum/r33665048-AT-T-Fiber-XGS-PON-SFP-Modules-for-AT-T-Fiber

    https://hackaday.io/project/193110-bypassing-the-bgw-320-using-an-azores-cots-ont

    https://forum.netgate.com/topic/99190/att-uverse-rg-bypass-0-2-btc/440

    https://simeononsecurity.com/guides/bypassing-the-bgw320-att-fiber-modem-router/

  • I don't believe this is possible and actively protected against in the dht protocol implementation.

    The return value for a query for peers includes an opaque value known as the "token." For a node to announce that its controlling peer is downloading a torrent, it must present the token received from the same queried node in a recent query for peers. When a node attempts to "announce" a torrent, the queried node checks the token against the querying node's IP address. This is to prevent malicious hosts from signing up other hosts for torrents. Since the token is merely returned by the querying node to the same node it received the token from, the implementation is not defined. Tokens must be accepted for a reasonable amount of time after they have been distributed. The BitTorrent implementation uses the SHA1 hash of the IP address concatenated onto a secret that changes every five minutes and tokens up to ten minutes old are accepted.

    I believe you would have to know the torrent first, then you could discover other nodes. This is probably why that tool can't tell you anything outside of it's known list of torrents.

    Source: http://bittorrent.org/beps/bep_0005.html

  • Maybe I'm misunderstanding the purpose or goal but wouldn't this be perfect use case for a virtual machine? I'm surprised no one has suggested that. A one off temporary, easily reverted back to pristine with snapshots sounds like exactly what you would want for testing something like this out.