Hi,
Q1:- The clients running on Linux System is 12.1.2 and are unmanaged clients. So ideally there is not way that i can make this client communicate to latest SEPM even by replacing the SYLINK.xml file on the client.?
--> No, there isn't any way to achieve it.
Q2:- what if i upgrade the clients from 12.1.2 to 12.1.5 and then replace the SYLINK.xml file, will this help? Also just wanted to check will upgrading change any settings manually made on the old linux client.?
--> Upgrade is not supported becasue this is the first time SEP is introduced to Linux machine, previously it was SAVFL. Are there any specific setting you looking for to retain them?