在FatCow主機上安裝wordpress等網站程序的時候，經常會出現500 Internal Server Error錯誤：
The server encountered an unexpected condition which prevented it from fulfilling the request.
The script had an error or it did not produce any output. If there was an error, you should be able to see it in the error log.
下圖所示就是挑主機在FatCow上面安裝wordpress的時候出現的錯誤提示。
如果直接通過FatCow後臺Control Panel中的InstallCentral安裝，則不會出現這種錯誤。
造成500 Internal Server Error的原因，是因爲目錄的權限應該爲750或者755。這裏我們將wordpress根目錄下面的wp-admin目錄權限改成755，就可以解決問題，wordpress即可正常安裝了。