I applied two security pathes and reapplied ownership, no input file specified.

[dtacollectibles]

I just installed a couple critical patches and followed the instructions here.http://devdocs.magento.com/guides/m1x/other/ht_install-patches.html

After I ran the following command

chown -R root .

My site not says 'No input file specified.'

I tried reverting the patches and that didn't do anything.

Any Ideas? Do i need to reset the file permissions?

find . -type f -exec chmod 644 {} \;
find . -type d -exec chmod 755 {} \;
chmod 550 mage

[dtacollectibles]

These two commands fixed it

find . -type f -exec chmod 644 {} \;
find . -type d -exec chmod 755 {} \;

Thanks anyway 

[theMageComp]

Hello @dtacollectibles

Nice to hear that your issue has been resolved,

If you are looking for the simple ways for the patch installation, 

Checkout this blog,

http://magecomp.com/blog/how-to-install-magento-security-patches/

SECURITY DISCLAIMER: The above website contains Magento Security Patch files which are self-hosted by the user and as such unsafe. Magento Forum advise all users to only download patch files from the official Magento Downloads page.