Remove a file whose name begins with "-"

Due to a bug in our product the log file was being created with the name "-server.log" (instead of "host-server.log"). Once the issue was fixed, i was trying to remove the file. Tried single quote/double quote/escape, but nothing worked. Finally after googling, found solution for it. Since the file name begins with the "-", all the unix commands treats the file name itself as a parameter to the command. To make it work put -- or ./ before the file name.

example:
rm -- -server.log
rm ./-server.log