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Re: 建议合作确定sourceforge.net及slashdot不能访问的地域



Zhang Weiwu wrote:

yuwen wrote:

But there're many root servers, for example f.root-servers.net can be
reached, why slashdot.org can be resovled?  Try these two commands:

leo:~# dig www.slashdot.org

; <<>> DiG 9.2.1 <<>> www.slashdot.org
;; global options:  printcmd
;; connection timed out; no servers could be reached
leo:~#
leo:~#
leo:~#
leo:~#
leo:~#
leo:~# dig wwwwww.slashdot.org

; <<>> DiG 9.2.1 <<>> wwwwww.slashdot.org
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 32251
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;www.slashdot.org.              IN      A

;; Query time: 4063 msec
;; SERVER: 202.96.209.133#53(202.96.209.6)
;; WHEN: Wed Mar 31 09:40:08 2004
;; MSG SIZE rcvd: 34


I don't really get it ;`) What do you mean?
I just mean something really weird and evil happened. 202.96.209.133 is dns of my ISP. When I dig www.slashdot.org, why the error message is "no servers could be reached"? When I dig an non-existed site wwwwww.slashdot.org, why the server show up again?

Do you mean I should set my
/etc/resolv.conf to use a root server like 192.5.5.241 (f.root-servers.net.)?
No.



zhangweiwu@thinkpad:~>dig @202.96.209.133 www.slashdot.org

; <<>> DiG 8.3 <<>> @202.96.209.133 www.slashdot.org
; (1 server found)
;; res options: init recurs defnam dnsrch
;; res_nsend: Operation timed out
Exit 9
zhangweiwu@thinkpad:~>dig @202.96.209.133 wwwwww.slashdot.org

; <<>> DiG 8.3 <<>> @202.96.209.133 wwwwww.slashdot.org
; (1 server found)
;; res options: init recurs defnam dnsrch
;; res_nsend: Operation timed out
Exit 9






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