dns and subdomain(some corrections)
gliu
ryuu-gou at mail1.dnet.gr.jp
Fri Feb 1 17:10:28 UTC 2002
Hi
As a newbee in setting Dns server,I have a few questions in learining.
The Administrator of my company have given me a subdomain to be accessed from internet.I was response for setting the domain server.
go.nu -->the domain of my company ip 210.220.18.2
s.go.nu-->the domain name of my department ip 210.220.3.100
Now I tried to set up a linux server just for test.
dns server name -->ns.s.go.nu (domain name--> s.go.nu) ip-->192.168.2.3 gateway-->192.168.2.1
I found there was no problem at solving machine in 192.168.2.0/24.(ping hostname<->ping ip).It was impossible to ping outside.eg: ping ip (of yahoo) directly Ok,but ping www.yahoo.com error.
Here are my setting files.
zone "." {
type hint;
file "named.cache"; downloaded from ftp://internic.net and copied to /var/named/
};
zone "s.go.nu"{
type master;
file "db.s.go.nu"
};
file db.s.go.nu
@ SOA ns.s.go.nu. root at s.go.nu. (
1997022700 ; Serial
28800 ; Refresh
14400 ; Retry
3600000 ; Expire
86400 ; Minimum
)
NS ns.s.go.nu.
ns IN A 192.168.2.7
test IN A 192.168.2.5
file /etc/resolve.conf
nameserver 192.168.2.7
My questions are
1. How can not I ping nameserver at internet although i setup the root.cache.Is it for the local ip address? Can I do it if I use the true internet address(210.220.3.100)?
2. Do I have to use the localhost and 0.0.127.in-addr.arpa as two zones. System knows localhost and 127.0.0.1 each others in default.
3. As using "master" type ,how can the dns server refresh its database by the time (
1997022700 ; Serial
28800 ; Refresh
14400 ; Retry
3600000 ; Expire
86400 ; Minimum )
Thanks in advance!
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