Novell BUSINESS CONTINUITY CLUSTERING 1.2.1 - ADMINISTRATION, Руководство администратора

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160 BCC 1.2.1: Administration Guide for OES 2 SP2 Linux
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8b Use the dig utility with the IP address to find the DNS name.
dig @10.1.1.172 -x 10.1.1.216
; <<>> DiG 9.3.2 <<>> @10.1.1.172 -x 10.1.1.216
; (1 server found)
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 14497
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;216.1.1.10.in-addr.arpa. IN PTR
;; ANSWER SECTION:
216.1.1.10.in-addr.arpa. 300 IN PTR
ftp.clusters.site1.company.com.
;; AUTHORITY SECTION:
1.1.10.in-addr.arpa. 120 IN NS
wkstn1.clusters.site1.company.com.1.1.10.in-addr.arpa.
;; Query time: 6 msec
;; SERVER: 10.1.1.172#53(10.1.1.172)
;; WHEN: Tue Aug 14 17:55:01 2008
;; MSG SIZE rcvd: 127
9
Use the dig utility in a reverse lookup for the old IP address to make sure that it does not return
an answer.
dig @10.1.1.172 -x 10.1.1.215
; <<>> DiG 9.3.2 <<>> @10.1.1.172 -x 10.1.1.215
; (1 server found)
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 49360
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;215.1.1.10.in-addr.arpa. IN PTR
;; AUTHORITY SECTION:
1.1.10.in-addr.arpa. 120 IN SOA
wkstn1.clusters.site1.company.com.
root.wkstn1.clusters.site1.company.com. 2007032716 10800 3600 604800 86400
;; Query time: 0 msec
;; SERVER: 10.1.1.172#53(10.1.1.172)
;; WHEN: Tue Aug 14 17:55:07 2008
;; MSG SIZE rcvd: 105
10 If your setup passes the tests in this section, continue with Section E.3, “Configuring the
Cluster Resources for Dynamic DNS,” on page 161 .