08-01-2010 12:13 PM
Need to know to what entries should go in the Public DNS server for the domail/url x.y.com so that the request from clients or DNS-Proxy for the domain x.y.com is responded by the GSS-P or GSS-S. Secondly which GSS will respond to the client/DNS-P response. Thanks
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08-04-2010 10:31 AM
that is correct
08-04-2010 06:31 AM
Not sure what you have as a dns server. But in essence you would make the 2 GSS's authoritative for the x.y.com sub domain. If we take a Bind server as an example you have 2 otions first would be direct delegation of A records to the GSS , in this example I am making GSS authoritative for www.cisco.com
$TTL 3h
cisco.com. IN SOA nameserver1.cisco.com. adminemail.cisco.com. (
2003070801 ; Serial
3h ; Refresh after 3 hours
1h ; Retry after 1 hour
1w ; Expire after 1 week
1h ) ; Negative caching TTL of 1 hour
;
; Name servers
;
cisco.com. IN NS nameserver1.cisco.com.
www.cisco.com. IN NS gss1.cisco.com. ß NS record for www.cisco.com via GSS1
www.cisco.com. IN NS gss2.cisco.com. ß NS record for www.cisco.com via GSS2
;
; Addresses
;
localhost.cisco.com. IN A 127.0.0.1
nameserver1.cisco.com. IN A 10.10.10.1
gss1.cisco.com. IN A 10.1.1.254 ß A record for GSS1
gss2.cisco.com. IN A 10.1.2.254 ß A record for GSS2
The other option is to delegate the subdomain to the GSS's using CNAME
$TTL 3h
cisco.com. IN SOA nameserver1.cisco.com. adminemail.cisco.com. (
2003070801 ; Serial
3h ; Refresh after 3 hours
1h ; Retry after 1 hour
1w ; Expire after 1 week
1h ) ; Negative caching TTL of 1 hour
;
; Name servers
;
cisco.com. IN NS nameserver1.cisco.com.
gslb.cisco.com. IN NS gss1.gslb.cisco.com. ß delegates authority for gslb.cisco.com via GSS1
gslb.cisco.com . IN NS gss2.gslb.cisco.com. ß delegates authority for gslb.cisco.com via GSS2
;
; Addresses
;
localhost.cisco.com. IN A 127.0.0.1
nameserver1.cisco.com. IN A 10.10.10.1
gss1.gslb.cisco.com. IN A 10.1.1.254 ß A record for GSS1
gss2.gslb.cisco.com. IN A 10.1.2.254 ß A record for GSS2
;
; Aliases
;
www.cisco.com. IN CNAME www.gslb.cisco.com. ß client can use either name
attaching a somewaht dated best practices document however the points remain valid.
08-04-2010 10:04 AM
so to recap, i need to add a NS record for the subdomain and those NS records should point to the GSS-P and GSS-S. the name server has GSS-P and GSS-S A records.
Please correct me if i understood correctly
08-04-2010 10:31 AM
that is correct
08-16-2010 08:18 PM
hi litrenta
your advice helps
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