rich1.0npub17ty4mumkv43w8wtt0xsz2jypck0gvw0j8xrcg6tpea25z2nh7meqf4qgydhttps://nostr.ae/npub17ty4mumkv43w8wtt0xsz2jypck0gvw0j8xrcg6tpea25z2nh7meqf4qgydnjumphttps://nostr.ae📅 Original date posted:2011-08-03 🗒️ Summary of this message: Many bad nodes are appearing in the DNS seeds, slowing down peer bringup for Android apps. A custom DNS server may help resolve the issue. 📝 Original message:This is expected to happen from time to time of course as it's inherently racy, but there are a *lot* of bad nodes appearing in the DNS seeds. $ nmap -oG /tmp/x -p 8333 `dig +short bitseed.bitcoin.org.uk dnsseed.bluematt.me bitseed.xf2.org` ... Nmap done: 48 IP addresses (25 hosts up) scanned in 9.80 seconds $ grep -c 'closed' /tmp/x 6 So of 48 IPs returned only 19 are actually usable. This is slowing down peer bringup for the Android apps, which don't currently save the addresses of last-used peers (yes, I know we should fix this). I was talking to a friend a few days ago about Bitcoin, he seemed interested. I'm hoping he might take on DNS seeding as a project. A custom DNS server that watches the network to find long-lived peers that run the latest version would be helpful for resolving this kind of thing. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.linuxfoundation.org/pipermail/bitcoin-dev/attachments/20110803/2d5c0a64/attachment.html>