I got some reports from customers that some CH domains no not resolve... While testing if found: Only two of the [a-f].nic.ch seem to give replies... The ones that answer are exactly the ones that do not have IPv6 addresses...

Happens at least for ksz.ch and swisscom.ch. Anyone else sees this?

Any ideas?

(820)[r...@svn /tmp]# sh ch
dig swisscom.ch ns @A.nic.ch
;; Got referral reply from 130.59.1.80, trying next server

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> swisscom.ch ns @A.nic.ch
;; global options:  printcmd
;; connection timed out; no servers could be reached

dig swisscom.ch ns @B.nic.ch
;; Got referral reply from 130.59.211.10, trying next server

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> swisscom.ch ns @B.nic.ch
;; global options:  printcmd
;; connection timed out; no servers could be reached

dig swisscom.ch ns @C.nic.ch
;; Got referral reply from 147.28.0.39, trying next server

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> swisscom.ch ns @C.nic.ch
;; global options:  printcmd
;; connection timed out; no servers could be reached

dig swisscom.ch ns @D.nic.ch

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> swisscom.ch ns @D.nic.ch
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 24625
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 0

;; QUESTION SECTION:
;swisscom.ch.                   IN      NS

;; AUTHORITY SECTION:
swisscom.ch.            3600    IN      NS      dns2.swisscom.com.
swisscom.ch.            3600    IN      NS      dns1.swisscom.com.

;; Query time: 218 msec
;; SERVER: 200.160.0.5#53(200.160.0.5)
;; WHEN: Thu Apr 29 10:41:36 2010
;; MSG SIZE  rcvd: 79


dig swisscom.ch ns @E.nic.ch
;; Got referral reply from 204.61.216.47, trying next server

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> swisscom.ch ns @E.nic.ch
;; global options:  printcmd
;; connection timed out; no servers could be reached

dig swisscom.ch ns @F.nic.ch

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> swisscom.ch ns @F.nic.ch
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 61901
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 0

;; QUESTION SECTION:
;swisscom.ch.                   IN      NS

;; AUTHORITY SECTION:
swisscom.ch.            3600    IN      NS      dns1.swisscom.com.
swisscom.ch.            3600    IN      NS      dns2.swisscom.com.

;; Query time: 24 msec
;; SERVER: 194.146.106.10#53(194.146.106.10)
;; WHEN: Thu Apr 29 10:41:51 2010
;; MSG SIZE  rcvd: 79



dig ksz.ch ns @A.nic.ch
;; Got referral reply from 130.59.1.80, trying next server

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> ksz.ch ns @A.nic.ch
;; global options:  printcmd
;; connection timed out; no servers could be reached

dig ksz.ch ns @B.nic.ch
;; Got referral reply from 130.59.211.10, trying next server

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> ksz.ch ns @B.nic.ch
;; global options:  printcmd
;; connection timed out; no servers could be reached

dig ksz.ch ns @C.nic.ch
;; Got referral reply from 147.28.0.39, trying next server

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> ksz.ch ns @C.nic.ch
;; global options:  printcmd
;; connection timed out; no servers could be reached

dig ksz.ch ns @D.nic.ch

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> ksz.ch ns @D.nic.ch
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 59974
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 0

;; QUESTION SECTION:
;ksz.ch.                                IN      NS

;; AUTHORITY SECTION:
ksz.ch.                 3600    IN      NS      zug.ch.ns.progon.net.
ksz.ch.                 3600    IN      NS      udns1.ultradns.net.
ksz.ch.                 3600    IN      NS      udns2.ultradns.net.

;; Query time: 228 msec
;; SERVER: 200.160.0.5#53(200.160.0.5)
;; WHEN: Thu Apr 29 10:44:25 2010
;; MSG SIZE  rcvd: 107


dig ksz.ch ns @E.nic.ch
;; Got referral reply from 204.61.216.47, trying next server

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> ksz.ch ns @E.nic.ch
;; global options:  printcmd
;; connection timed out; no servers could be reached

dig ksz.ch ns @F.nic.ch

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> ksz.ch ns @F.nic.ch
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1256
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 3, ADDITIONAL: 0

;; QUESTION SECTION:
;ksz.ch.                                IN      NS

;; AUTHORITY SECTION:
ksz.ch.                 3600    IN      NS      zug.ch.ns.progon.net.
ksz.ch.                 3600    IN      NS      udns2.ultradns.net.
ksz.ch.                 3600    IN      NS      udns1.ultradns.net.

;; Query time: 24 msec
;; SERVER: 194.146.106.10#53(194.146.106.10)
;; WHEN: Thu Apr 29 10:44:41 2010
;; MSG SIZE  rcvd: 107


(825)[r...@svn /tmp]# dig -d swisscom.ch ns @A.nic.ch
main parsing swisscom.ch
clone_lookup()
make_empty_lookup()
clone_server_list()
looking up swisscom.ch
main parsing ns
main parsing @A.nic.ch
make_server(130.59.1.80)
make_server(2001:620::4)
setup_system()
create_search_list()
ndots is 1.
copy_server_list()
make_server(81.94.122.18)
lock_lookup dighost.c:3100
success
start_lookup()
setup_lookup(0x2ad26cf3ed98)
resetting lookup counter.
using root origin
recursive query
add_question()
starting to render the message
done rendering
create query 0x2ad26cf63b88 linked to lookup 0x2ad26cf3ed98
create query 0x2ad26cf63d68 linked to lookup 0x2ad26cf3ed98
do_lookup()
send_udp(0x2ad26cf63b88)
bringup_timer()
have local timeout of 1
working on lookup 0x2ad26cf3ed98, query 0x2ad26cf63b88
sockcount=1
recving with lookup=0x2ad26cf3ed98, query=0x2ad26cf63b88, sock=0x2ad26cf86010
recvcount=1
sending a request
unlock_lookup dighost.c:3102
lock_lookup dighost.c:1919
success
send_done()
sendcount=0
check_if_done()
list empty
unlock_lookup dighost.c:1948
recv_done()
lock_lookup dighost.c:2605
success
recvcount=0
lookup=0x2ad26cf3ed98, query=0x2ad26cf63b88
before parse starts
sending query 0x2ad26cf63d68

send_udp(0x2ad26cf63d68)
bringup_timer()
have local timeout of 5
working on lookup 0x2ad26cf3ed98, query 0x2ad26cf63d68
sockcount=2
recving with lookup=0x2ad26cf3ed98, query=0x2ad26cf63d68, sock=0x2ad26cf87070
recvcount=1
sending a request
;; Got referral reply from 130.59.1.80, trying next server
clear_query(0x2ad26cf63b88)
sockcount=1
check_next_lookup(0x2ad26cf3ed98)
still have a worker
unlock_lookup dighost.c:2848
lock_lookup dighost.c:1919
success
send_done()
sendcount=0
check_if_done()
list empty
unlock_lookup dighost.c:1948
connect_timeout()
lock_lookup dighost.c:2160
success
resending UDP request to first server
send_udp(0x2ad26cf63d68)
bringup_timer()
have local timeout of 5
working on lookup 0x2ad26cf3ed98, query 0x2ad26cf63d68
sending a request
unlock_lookup dighost.c:2201
lock_lookup dighost.c:1919
success
send_done()
sendcount=0
check_if_done()
list empty
unlock_lookup dighost.c:1948
connect_timeout()
lock_lookup dighost.c:2160
success
resending UDP request to first server
send_udp(0x2ad26cf63d68)
bringup_timer()
have local timeout of 5
working on lookup 0x2ad26cf3ed98, query 0x2ad26cf63d68
sending a request
unlock_lookup dighost.c:2201
lock_lookup dighost.c:1919
success
send_done()
sendcount=0
check_if_done()
list empty
unlock_lookup dighost.c:1948
connect_timeout()
lock_lookup dighost.c:2160
success

; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> -d swisscom.ch ns @A.nic.ch
;; global options:  printcmd
;; connection timed out; no servers could be reached
cancel_lookup()
check_if_done()
list empty
check_next_lookup(0x2ad26cf3ed98)
still have a worker
unlock_lookup dighost.c:2201
recv_done()
lock_lookup dighost.c:2605
success
recvcount=0
lookup=0x2ad26cf3ed98, query=0x2ad26cf63d68
no longer pending.  Got operation canceled
clear_query(0x2ad26cf63d68)
sockcount=0
check_next_lookup(0x2ad26cf3ed98)
try_clear_lookup(0x2ad26cf3ed98)
destroy
freeing server 0x2ad26cf41408 belonging to 0x2ad26cf3ed98
freeing server 0x2ad26cf41c38 belonging to 0x2ad26cf3ed98
start_lookup()
check_if_done()
list empty
shutting down
unlock_lookup dighost.c:2632
destroy
cancel_all()
lock_lookup dighost.c:3116
success
unlock_lookup dighost.c:3146
destroy_libs()
freeing task
freeing taskmgr
lock_lookup dighost.c:3173
success
flush_server_list()
freeing commctx
freeing socketmgr
freeing timermgr
destroy DST lib
detach from entropy
unlock_lookup dighost.c:3219

Greetings from Zug

   wiwi


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