Technology Errors

How To mv Files With A Dash: mv: invalid option — 1, Try mv –help for more information

Recently I was moving files from one directory to another on a CentOS 5.4 server and ran into an issue. When attempting to move every single file in the directory I received an error which is noted below. It took me a couple minutes but I figured out by trial and error that the issue was related to files starting with a “-“(dash) because the mv command thought that I was attempting to use a switch. The resolution is easy using “./”. Look at the below examples for more information about the error and how it was resolved.

Technology Errors

Zen Cart Module Manage Add On: .keep file error

I was required to install the Module Manager add-on for Zen Cart because it is required by the Simple SEO URL Zen Cart add-on requested by a client of mine. During the install process you visit the Module Manager section in the Zen Cart admin and I received an error complaining that a specific file did not exist. Below is a quick description of the error and what was done to resolve it.

Information Security

Backtrack 4: Information Gathering: Route: 0trace – Traceroute Firewall Bypass Tool

This is the first in a series of Backtrack 4 articles I will be writing regarding the tools available within Backtrack 4. I am fairly new to Backtrack so please comment, teach me, ask questions, or whatever you prefer in the comments section below. I am going to try to go down the list of every single Backtrack 4 tool and write a complete description including instructions on how to use the tools. This first article is on 0trace ( which allows you to perform a traceroute from within an established TCP connection such as HTTP which will be demonstrated below.

Technology Errors

Zen Cart Simple SEO URL Add On Displaying Blank Page In Zen Cart Admin

A couple days ago I installed the Zen Cart Simple SEO URL add on for a client of mine. The SSU Zen Cart admin page was blank after following the instructions attempting to trigger the final installation steps by visiting a specific page in the Zen Cart admin. It appears I missed reading the “requirements” section of the installation instructions. Below is more information on the problem and how to easily resolve.

Technology Errors

Simple SEO URL: Request Exeeded The Limit Of 10 Internal Redirects

I was hired to install some ZenCart plugins recently one of which included the Simple SEO URL add on. The installation was fairly easy besides a dependency that was missing which I will describe in a future email. After the installation was complete I got excited when I was ready to test but was let down when I got a 500 Internal Server Error back from the Apache web server. The virtual host that the client was using didn’t have Error Logs enabled so I had to enable them and wait until they started archiving. Below is a description of the errors in the Apache Error Logs and how I resolved the issue.