I just installed my first EVER bind DNS server. I am running bind9 on Ubuntu 10.04. Everything seems to be working great except one thing: If I ping a host that I have set up in bind by its HOSTNAME the pings take 5-6 seconds to reply/print to the screen between each echo response. If I ping by the host's IP address, they echo back very quickly.
I have read that IPv6 can cause this, but I have disabled it in /etc/sysctl.conf and the problem still exists.
I know everyone says this can't be a DNS issue, but this never was an issue with dnsmasq (which i was using prior), and it doesn't make sense that the ping are ONLY slow when pinging by hostname and not IP.
I have posted configs below if it helps anyone.
Thanks in advance!
Ping by hostname - there is a 5-6 second delay between each one of the responses:
Code:
PING greenmachine.scs.local (192.168.0.201) 56(84) bytes of data.
64 bytes from 192.168.0.201: icmp_req=1 ttl=64 time=98.2 ms
64 bytes from 192.168.0.201: icmp_req=2 ttl=64 time=5.06 ms
64 bytes from 192.168.0.201: icmp_req=3 ttl=64 time=4.39 ms
64 bytes from 192.168.0.201: icmp_req=4 ttl=64 time=3.55 ms
64 bytes from 192.168.0.201: icmp_req=5 ttl=64 time=8.46 ms
64 bytes from 192.168.0.201: icmp_req=7 ttl=64 time=90.9 ms
Ping by IP - the responses come VERY quickly one after the other:
Code:
PING 192.168.0.201 (192.168.0.201) 56(84) bytes of data.
64 bytes from 192.168.0.201: icmp_req=1 ttl=64 time=1.05 ms
64 bytes from 192.168.0.201: icmp_req=2 ttl=64 time=3.93 ms
64 bytes from 192.168.0.201: icmp_req=3 ttl=64 time=7.07 ms
64 bytes from 192.168.0.201: icmp_req=4 ttl=64 time=4.43 ms
64 bytes from 192.168.0.201: icmp_req=5 ttl=64 time=0.842 ms
64 bytes from 192.168.0.201: icmp_req=6 ttl=64 time=2.31 ms
/etc/resolv.conf:
Code:
domain scs.local
search scs.local
nameserver 192.168.0.150
scs.local.db:
Code:
$TTL 3D
@ IN SOA ubuntu-VM.scs.local. admin.scs.local. (
2007031001;
28800;
3600;
604800;
38400
);
scs.local. IN NS ubuntu-VM.scs.local.
ubuntu-VM IN A 192.168.0.150
greenmachine IN A 192.168.0.201
gateway IN A 192.168.0.1
www IN CNAME greenmachine
rev.0.168.192.in-addr.arpa:
Code:
$TTL 3D
@ IN SOA ubuntu-VM.scs.local. admin.scs.local. (
2007031001;
28800;
604800;
604800;
86400
);
IN NS ubuntu-VM.scs.local.
150 IN PTR ubuntu-VM.scs.local.
201 IN PTR greenmachine.scs.local.
1 IN PTR gateway.scs.local.
/etc/bind/named.conf.local:
Code:
#FORWARD LOOKUP ZONE
zone "scs.local"
{
type master;
file "/etc/bind/zones/scs.local.db";
};
#REVERSE LOOKUP ZONE
zone "0.168.192.in-addr.arpa"
{
type master;
file "rev.0.168.192.in-addr.arpa";
};
/etc/bind/named.conf.options:
Code:
options {
directory "/var/cache/bind";
forwarders {
8.8.8.8;
8.8.4.4;
};
auth-nxdomain no; # conform to RFC1035
listen-on-v6 { any; };
};
