System¶
A BIG-IP System needs to be prepared before creating a GSLB configuration. Administrative tasks including SNMP/DNS/NTP settings have already been completed. The task of creating a “Logging Profile” is the beginning of this class. Create a log publisher and a DNS logging profile and then associate the two objects. The DNS logging profile will then be associated to a DNS listener in a later task. For more informaton on DNS logging, please refer to the link below.
More information on DNS Logging
Create a “Log Publisher”
Note
It is required to complete the following task on both gtm1.site1 and gtm1.site2
On gtm1.site1 navigate to: System ›› Logs : Configuration : Log Publishers
On gtm1.site2 navigate to: System ›› Logs : Configuration : Log Publishers
Create a local syslog publisher according to the table below:
Field Value Name local-syslog-publisher Destinations local-syslog 
TMSH command for both gtm1.site1 and gtm1.site2:
TMSH
tmsh create sys log-config publisher local-syslog-publisher { destinations replace-all-with { local-syslog { } } }
Create a “Logging Profile”
Note
It is required to complete the following task on both gtm1.site1 and gtm1.site2
On gtm1.site1 navigate to: DNS >> Delivery : Profiles : Other : DNS Logging
On gtm1.site2 navigate to: DNS >> Delivery : Profiles : Other : DNS Logging
Create a new DNS logging profile as shown in the table below.
Field Value Name example_dns_logging_profile Log Publisher local-syslog-publisher Log Responses enabled Include Query ID enabled 
TMSH command for both gtm1.site1 and gtm1.site2:
TMSH
tmsh create ltm profile dns-logging example_dns_logging_profile enable-response-logging yes include-query-id yes log-publisher local-syslog-publisher