Aptana 500 Error for Remotely Created Files
If you are using Aptana Studio as me (version 3.x) you might have tried to create a file on a remote connection host. Then, when trying to access that file it returns a 500 error. That happens because the wrong permissions applied to uploaded/created files. You need to go to Aptana Preferences->Aptana Studio-> Publishing -> FTP and do like the image shown in the left.
Basically what you need to do is remove write permissions to group & all.
That’s it, enjoy creating remote files directly from Aptana Studio 3 without 500 errors!