Game Server Manager :

Game Server Manager lets you check the status of your favorite Call of Duty, CS GO, CS Source and Team Fortress 2 servers.

You will be able to see for each server their name, ping, player count, max player, currently playing the map and the player list.

If you have the RCON of the server, you can also entirely manage the server: change map, change the game type, kick player, temporary ban player, permanently ban player, urban player, etc. You also have full access to the server console.