Technology Errors

Cacti Graphs Not Displaying, [STDERR] sh: /usr/bin/rrdtool: No such file or directory

I was contacted by a client last week regarding a monitoring server they have deployed. One of the applications they have gathering data from this server is Cacti. Anyhow they were able to login to Cacti but the graphs were not displaying. After logging into the server, which is running CentOS Linux, I saw the error clearly in the Litespeed logs. Below I describe the error in more detail as well as how to resolve this problem if you run into it.

Details
Technology Errors

Windows XP Recovery Console Access Denied

Recently a Dell computer running Windows XP Home Edition was dropped off at our computer shop to be repaired. The computer would not boot because it appeared that numerous Windows system files were corrupted. After some initial troubleshooting I booted to the Windows Recovery Console in an attempt to copy backups of the system files to the active locations however when I attempted to issue the copy commands from the Recovery Console I received an error of “Access Denied”. This problem can likely be fixed by running chkdsk as shown below.

Details
Technology Errors

TW-Brother MFC-5890CN LAN Scanner Error TW006, Cannot Scan From Brother Printer

For some reason today I could not scan an item on our Brother MFC-5890CN printer to my Windows 7 laptop today at the computer shop. It has been a couple weeks since I needed to scan something to my computer however it has never had a problem in the past. Today though when I attempted to scan a document using the Brother ControlCenter3 software it failed to connect to the Brother printer. The interesting thing is that when I attempted to configure the device remotely using the same Brother ControlCenter3 software it worked without an issue. I initially thought it was some form of firewall issue either on my computer or on the firewall at the computer shop however that was not the issue. Below I describe the error in more detail as well as how I resolved the problem.

Details