How to configure the AD Sync Util to use a proxyserver

Question

Hi, 
 we have a standardproxy that also handels the DNS requests for connections to the internet. After configuration the AD Sync Utility tries to contact https://cloud.sophos.com but cannot get a DNS resolution for this URL. 
 I have not found any option to configure a proxyserver inside the utility and it apparently does not use the one set as system default. 
 Can somebody please give me a hint how to solve the problem ang get the AD Sync working.

jak · Accepted Answer

Hi, As it's a .Net application and running Process Explorer reveals that it's the service (C:\Program Files (x86)\Sophos\Cloud\AD Sync\SophosADSyncService.exe) that contacts the internet. I assume you can just create a .config file, e.g. "SophosADSyncService.exe.config" in the same directory as the exe to configure it. The following content should configure the proxy: as per: https://msdn.microsoft.com/en-us/library/kd3cf2ex(v=vs.110).aspx , adjust as needed. I would suggest checking with Support though as this seems a little hacky and an update might blow it away. Regards, Jak

KaiHofmann · Answer

Hello, 
 I have an answer from the Sophos support team. 
 Apparently there are a few workarounds sor this problem 
 
 Changing the log on account from System to a user account (as suggested by Michael) 
 The solution that Jak pointet out. Note that we would suggest they keep a backup of that .config file, in the event the next AD Sync version update removes it. 
 Adding *.sophos.com/* as an authentication exception to the proxy itself for that system running the AD sync utility. (which i dont think would work in our case because we cannot get an DNS resolution) 
 
 The Support also pointet out that they addresed the problem to development but could not say if or when this may result in changes to the application.