This problem is back for me as well, after being fixed in 2.9-6. 2.9-7 works, 2.9-10 fails. "options single-request" in my resolv.conf does nothing. (Could you verify that is the correct syntax?) Here is my DNS trace with single-request set.
11:51:45.491726 IP (tos 0x0, ttl 64, id 26230, offset 0, flags [DF], proto UDP (17), length 56) 192.168.0.101.43124 > 192.168.0.1.53: [udp sum ok] 39751+ A? google.com. (28) 11:51:45.497307 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 72) 192.168.0.1.53 > 192.168.0.101.43124: [udp sum ok] 39751- q: A? google.com. 1/0/0 google.com. A 74.125.67.100 (44) 11:51:45.497435 IP (tos 0x0, ttl 64, id 26231, offset 0, flags [DF], proto UDP (17), length 56) 192.168.0.101.43124 > 192.168.0.1.53: [udp sum ok] 48239+ AAAA? google.com. (28) 11:51:45.521547 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 56) 192.168.0.1.53 > 192.168.0.101.43124: [udp sum ok] 48239- q: AAAA? google.com. 0/0/0 (28) 11:51:45.522358 IP (tos 0x0, ttl 64, id 26237, offset 0, flags [DF], proto UDP (17), length 56) 192.168.0.101.56385 > 192.168.0.1.53: [udp sum ok] 39751+ A? google.com. (28) 11:51:45.525636 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 72) 192.168.0.1.53 > 192.168.0.101.56385: [udp sum ok] 39751- q: A? google.com. 1/0/0 google.com. A 74.125.67.100 (44) 11:51:45.525705 IP (tos 0x0, ttl 64, id 26238, offset 0, flags [DF], proto UDP (17), length 56) 192.168.0.101.56385 > 192.168.0.1.53: [udp sum ok] 48239+ AAAA? google.com. (28) 11:51:45.550947 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 56) 192.168.0.1.53 > 192.168.0.101.56385: [udp sum ok] 48239- q: AAAA? google.com. 0/0/0 (28) 11:51:45.551705 IP (tos 0x0, ttl 64, id 26245, offset 0, flags [DF], proto UDP (17), length 56) 192.168.0.101.57011 > 192.168.0.1.53: [udp sum ok] 37693+ A? google.com. (28) 11:51:45.555200 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 72) 192.168.0.1.53 > 192.168.0.101.57011: [udp sum ok] 37693- q: A? google.com. 1/0/0 google.com. A 74.125.67.100 (44) 11:51:45.555263 IP (tos 0x0, ttl 64, id 26246, offset 0, flags [DF], proto UDP (17), length 56) 192.168.0.101.57011 > 192.168.0.1.53: [udp sum ok] 14101+ AAAA? google.com. (28) 11:51:45.578284 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 56) 192.168.0.1.53 > 192.168.0.101.57011: [udp sum ok] 14101- q: AAAA? google.com. 0/0/0 (28) 11:51:45.578958 IP (tos 0x0, ttl 64, id 26251, offset 0, flags [DF], proto UDP (17), length 56) 192.168.0.101.43912 > 192.168.0.1.53: [udp sum ok] 37693+ A? google.com. (28) 11:51:45.582282 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 72) 192.168.0.1.53 > 192.168.0.101.43912: [udp sum ok] 37693- q: A? google.com. 1/0/0 google.com. A 74.125.67.100 (44) 11:51:45.582343 IP (tos 0x0, ttl 64, id 26252, offset 0, flags [DF], proto UDP (17), length 56) 192.168.0.101.43912 > 192.168.0.1.53: [udp sum ok] 14101+ AAAA? google.com. (28) 11:51:45.610221 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 56) 192.168.0.1.53 > 192.168.0.101.43912: [udp sum ok] 14101- q: AAAA? google.com. 0/0/0 (28) Andrew -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org