One-click GSLB
Some of my FortiADC virtual servers are not synced to GSLB. Why is this happening?
This may be due to a network issue. Disable/enable GSLB on FortiADC to make FortiADC attempt to do a full sync again. The full sync can be only performed once every 10 minutes. That means if the full sync fails, you will not be able to try again for 10 minutes. If you disable/enable the GSLB on FortiADC multiple times within 10 minutes, only one full sync will be performed.
Why is my FortiADC showing "Connecting URL Error"?
First, make sure your URL is typed correctly. Second, try to ping the URL from your FortiADC and check your FortiADC DNS server setting. Third, check the FortiADC license connected to the FortiCare account. Lastly, log into your GSLB with that account and verify that you have the correct license. Then disable/enable the GSLB on FortiADC.
How long does it take for FortiADC to do a full configure sync with GSLB?
It depends on the number of virtual servers you have enabled GSLB on your FortiADC device and the number of GSLB The more there is to configure, the longer it will take. Generally the process will take less than 10 minutes.
What should I set for the interval?
The interval value is used by FortiADC to update virtual servers’ status and statistics to GSLB. The default setting is 15, which should fit in most cases. The general idea is that the more virtual servers you have, the bigger interval you should set. For more than 500 virtual servers, 30 is an adequate number.
How long does it take for my DNS to reflect the changes in virtual server status and statistics?
It depends on the interval you set. It usually does not take longer than the time interval + 10 seconds.
How long does it take for my DNS to reflect the changes in my virtual server configurations?
It depends on the FQDN and Zone configuration you have for the account on GSLB. Usually it should take no more than 1 minute.
What should I do if the status of GSLB on FortiADC displays ‘Connected’ but I can’t get the DNS to respond?
First, check if your virtual servers are fully synced with GSLB. Search for the virtual server in the GSLB related server. If it is not there, then try to do the full sync again on FortiADC, and check your system event log on FortiADC. Second, check if the related GSLB service was automatically created. Search for the virtual server-related GSLB service by the virtual server’s host name and domain name. If it is not there, then try to do the full sync again on FortiADC, and check your system event log on FortiADC.