-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I have a client with 9.10.2-P1-RedHat-9.10.2-2.P1.fc22 on Fedora 22, on a machine with a pppoe link with an mtu of 1492. The routers seem to be properly fragmenting udp - it can receive large packets such as
dig www.byington.org +dnssec +bufsiz=4000 +notcp @205.147.40.34 which says: ;; MSG SIZE rcvd: 3790 However, a tcpdump for tcp port 53 shows a lot of traffic. In particular, rndc flushtree novell.com dig www.novell.com @localhost shows some tcp traffic to the .com servers. How does one isolate the query or server that is causing that fallback to tcp? -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (GNU/Linux) iEYEARECAAYFAlWds+MACgkQL6j7milTFsGrfQCbBnfCydmoZOR7GyJyRu+8eu5m AQsAn3HfPcOBU4BhtVhkgb4slQq3lUEX =3RsN -----END PGP SIGNATURE----- _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users