自建的域名伺服器,如何不讓網路上公共的域名伺服器緩存呢
自建的DNS伺服器(bind),因為做了view自動判斷,想讓用戶的每次請求都直接轉到我的DNS伺服器上詢問,如何操作呢?
例: down.domain.com做了南北方用戶自動判斷,
南方電信用戶指向 111.111.111.111
北方網通用戶指向 222.222.222.222
用戶直接到我的DNS伺服器上請求解析肯定沒有問題,但如果南方用戶使用了202.106.0.20(網通的DNS伺服器)來解析的話,得到的IP就不是我想給的結果了
《解決方案》
接受現實，這個沒辦法。都上你的DNS伺服器上查詢，恐怕得作個伺服器機群了。
《解決方案》
用戶使用什麼dns是我們不能控制的.這個問題靠單純bind9的view是無法解決的.CDN又不僅僅是這一部分.
據我觀察SINA也沒做到的完全徹底的CDN.
C:\Documents and Settings\大宇>nslookup
Default Server: ns3.kongzhong.com
Address: 61.135.154.5
> www.sina.com.cn
Server: ns3.kongzhong.com
Address: 61.135.154.5
Name: jupiter.sina.com.cn
Address: 202.108.33.32
Aliases: www.sina.com.cn
> server 202.101.226.68
DNS request timed out.
timeout was 2 seconds.
Default Server:
Address: 202.101.226.68
> server 202.101.226.68
Default Server: ns.jxjjptt.net.cn
Address: 202.101.226.68
> www.sina.com.cn
Server: ns.jxjjptt.net.cn
Address: 202.101.226.68
Non-authoritative answer:
Name: antares.sina.com.cn
Addresses: 218.30.66.68, 218.30.66.69, 218.30.66.70, 218.30.66.71
218.30.66.108, 218.30.66.109, 218.30.66.110, 218.30.66.111, 218.30.6
112
218.30.66.113, 218.30.66.115, 218.30.66.116, 218.30.66.117, 218.30.6
65
218.30.66.66, 218.30.66.67
Aliases: www.sina.com.cn, jupiter.sina.com.cn
>
# whois 202.108.33.32@whois.apnic.org
%
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
inetnum: 202.108.0.0 - 202.108.255.255
netname: CNCGROUP-BJ
descr: CNCGROUP Beijing province network
descr: China Network Communications Group Corporation
descr: No.156,Fu-Xing-Men-Nei Street,
descr: Beijing 100031
country: CN
admin-c: CH455-AP
tech-c: SY21-AP
mnt-by: APNIC-HM
mnt-lower: MAINT-CNCGROUP-BJ
mnt-routes: MAINT-CNCGROUP-RR
changed: hm-changed@apnic.net 20031017
status: ALLOCATED PORTABLE
changed: hm-changed@apnic.net 20060124
source: APNIC
role: CNCGroup Hostmaster
e-mail: abuse@cnc-noc.net
address: No.156,Fu-Xing-Men-Nei Street,
address: Beijing,100031,P.R.China
nic-hdl: CH455-AP
phone: +86-10-82993155
fax-no: +86-10-82993102
country: CN
admin-c: CH444-AP
tech-c: CH444-AP
changed: abuse@cnc-noc.net 20041119
mnt-by: MAINT-CNCGROUP
source: APNIC
person: sun ying
address: fu xing men nei da jie 97, Xicheng District
address: Beijing 100800
country: CN
phone: +86-10-66030657
fax-no: +86-10-66078815
e-mail: suny@publicf.bta.net.cn
nic-hdl: SY21-AP
mnt-by: MAINT-CNCGROUP-BJ
changed: suny@publicf.bta.net.cn 19980824
changed: hm-changed@apnic.net 20060717
source: APNIC
# whois 218.30.66.68@whois.apnic.org
%
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
inetnum: 218.30.66.0 - 218.30.75.255
netname: CHINANET-IDC-XA
descr: CHINANET IDC center
descr: China Telecom
descr: A12,Xin-Jie-Kou-Wai Street
descr: Beijing 100088
country: CN
admin-c: CH93-AP
tech-c: CH93-AP
mnt-by: MAINT-CHINANET
changed: hostmaster@ns.chinanet.cn.net 20010731
status: ALLOCATED NON-PORTABLE
source: APNIC
person: Chinanet Hostmaster
nic-hdl: CH93-AP
e-mail: anti-spam@ns.chinanet.cn.net
address: No.31 ,jingrong street,beijing
address: 100032
phone: +86-10-58501724
fax-no: +86-10-58501724
country: CN
changed: lqing@chinatelecom.com.cn 20051212
mnt-by: MAINT-CHINANET
source: APNIC
《解決方案》
多謝兩位,目前也只能先這樣了...
