I was also going to recommend Awesome Miner, but then I saw Linux mentioned.
One nice feature you may find useful is that it allows you to manage tons of rigs AND asics in a similar fashion from a single console. Highly customizable too.
https://bitcointalk.org/index.php?topic=676942.0Miners are on linux, managment is separated on a VPS or a local PC
Does it really has to be Linux?