Bind - strange lookup failure
Christophe dumonet
Christophe.Dumonet at ifma.fr
Wed Oct 18 15:29:12 UTC 2006
Hello From France,
Due to hardware issues, I had to reinstall my BIND which works fine before.
I had reinstalled in first a bind 9-2-4, and following the problem which
I will describe, I had upgraded in bind 9.3.2P1, the problem is always
present
Now I have got a critical issue with Bind now :
The first request is always very long or (sometimes fails), the others
are ok. ( and lookup failure don't concern all domains, for example the
host smtp.wanadoo.fr causes one)
The first query time for a host or a domain is never under 1200 to 1500
ms, which causes failures clients lookup (and "hosts not found" with"
mailer-daemon" with my mail system )
--> I have checked my Bind config with www.dnsreports.com and all seems
to be good, idem for zonecheck.fr
In attachement, you cand find :
- a dig.smtp.wanadoo.fr example
- my named.conf
- named.conf.options
- named.conf.local
Thanks to help me for solving this problem.
Thank for your help, From France!
Christophe Dumonet.
#######################################################################
pcdmz01:/home/dumonet# dig smtp.wanadoo.fr
; <<>> DiG 9.2.4 <<>> smtp.wanadoo.fr
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 8589
;; flags: qr rd ra; QUERY: 1, ANSWER: 21, AUTHORITY: 4, ADDITIONAL: 0
;; QUESTION SECTION:
;smtp.wanadoo.fr. IN A
;; ANSWER SECTION:
smtp.wanadoo.fr. 243 IN A 193.252.22.89
smtp.wanadoo.fr. 243 IN A 193.252.22.92
smtp.wanadoo.fr. 243 IN A 193.252.22.107
smtp.wanadoo.fr. 243 IN A 193.252.22.116
smtp.wanadoo.fr. 243 IN A 193.252.22.123
smtp.wanadoo.fr. 243 IN A 193.252.23.67
smtp.wanadoo.fr. 243 IN A 193.252.23.107
smtp.wanadoo.fr. 243 IN A 193.252.23.110
smtp.wanadoo.fr. 243 IN A 80.12.242.3
smtp.wanadoo.fr. 243 IN A 80.12.242.6
smtp.wanadoo.fr. 243 IN A 80.12.242.9
smtp.wanadoo.fr. 243 IN A 80.12.242.12
smtp.wanadoo.fr. 243 IN A 80.12.242.15
smtp.wanadoo.fr. 243 IN A 193.252.22.56
smtp.wanadoo.fr. 243 IN A 193.252.22.65
smtp.wanadoo.fr. 243 IN A 193.252.22.78
smtp.wanadoo.fr. 243 IN A 193.252.22.79
smtp.wanadoo.fr. 243 IN A 193.252.22.80
smtp.wanadoo.fr. 243 IN A 193.252.22.81
smtp.wanadoo.fr. 243 IN A 193.252.22.82
smtp.wanadoo.fr. 243 IN A 193.252.22.83
;; AUTHORITY SECTION:
wanadoo.fr. 243 IN NS ns2.wanadoo.fr.
wanadoo.fr. 243 IN NS ns10.wanadoo.fr.
wanadoo.fr. 243 IN NS ns11.wanadoo.fr.
wanadoo.fr. 243 IN NS ns.wanadoo.fr.
;; Query time: 1249 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Mon Oct 16 10:12:39 2006
;; MSG SIZE rcvd: 442
##############################################################
named.conf
################################################################
include "/etc/bind/named.conf.options";
// prime the server with knowledge of the root servers
zone "." {
type hint;
file "/etc/bind/named.ca";
};
zone "localhost" {
type master;
file "/etc/bind/db.local";
};
zone "127.in-addr.arpa" {
type master;
file "/etc/bind/db.127";
};
zone "0.in-addr.arpa" {
type master;
file "/etc/bind/db.0";
};
zone "255.in-addr.arpa" {
type master;
file "/etc/bind/db.255";
};
// zone "com" { type delegation-only; };
// zone "net" { type delegation-only; };
include "/etc/bind/named.conf.local";
############fin de named.conf########################################
named.conf.options
##################################################################
options {
directory "/etc/bind";
//recursion no;
// If there is a firewall between you and nameservers you want
// to talk to, you might need to uncomment the query-source
// directive below. Previous versions of BIND always asked
// questions using port 53, but BIND 8.1 and later use an
unprivileged
// port by default.
query-source address * port 53;
// If your ISP provided one or more IP addresses for stable
// nameservers, you probably want to use them as forwarders.
// Uncomment the following block, and insert the addresses replacing
// the all-0's placeholder.
// forwarders {
// 0.0.0.0;
// };
allow-recursion {
my-internal-and external-network
};
auth-nxdomain no; # conform to RFC1035
//listen-on-v6 { any; };
tcp-clients 500;
recursive-clients 5000;
};
#####################################################################
named.conf.local
######################################################################
zone "ifma.fr" {
type master;
file "/etc/bind/ifma.fr";
};
zone "231.54.193.in-addr.arpa" {
type master;
file "/etc/bind/231.54.193";
};
######################################################################
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