Oh, and by the way, check your NAS devices to ensure that they are safe. Disconnect direct Internet access right now, until the devices are patched.
http://www.neowin.net/news/shellshock-bug-impacts-nas-devices-like-qnap-and-synology
QNAP says that they are vulnerable to this, and urge users to take immediate action. http://www.qnap.com/useng/index.php?lang=en-us&sn=885&c=3036&sc=&n=22457
Apparently, Synology units are not generally affected (interesting…), but nevertheless, they are also coming out with a patch (also interesting…) https://www.synology.com/en-global/support/security/bash_shellshock