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Cats are such majestic creatures

on March 16, 2014

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Python for Cybersecurity

I just completed creation of a course on Udemy – Python for Cybersecurity. The goal of the class is to provide a learn-by-doing approach to using Python for cybersecurity related tasks. https://www.udemy.com/course/python-for-cybersecurity/?referralCode=7731517871D63AE7D85D Included in this course: Introduction to Python Introduction to scripting related tools Using Python to perform network scans Using Python for cryptography and encryption Understanding how passwords are stored and how insecure passwords can be guessed Introduction to web-based APIs and RESTful transactions Using APIs with a cybersecurity focus This course is specifically designed to be completed on the Raspberry PI 4 single board computer. However, it can also be completed on a Windows, Linux, or Apple computer.

Using SCOM to monitor SQL Error Logs

Our SQL DBA reported that occasionally he will see errors in the SQL Error Logs similar to: SQL Server has encountered 45 occurrence(s) of IO requests taking longer than 15 seconds to complete on file [T:MSSQLDatatempdev6_Data.NDF] in database [tempdb] (2). The OS file handle is 0x000005B4. The offset of the latest long IO is: 0x0000000c7b2000 Monitoring for this alert at first sounded simple, but as I dug into it I realized it could be much more difficult than I expected. First off, this error is reported in the SQL Error Logs and only in the SQL Error Logs, so we cant simply use the NT Event log to alert us. Secondly, depending on how you install SQL, these error logs could be anywhere on the system. And lastly, this is needed to be monitored on SQL 2000 and SQL 2005 systems, so xp_ReadErrorLog won’t work for us. So the breakdown seems fairly simple: find out where the logs are, use the text log monitor, and search for the string. 1. Find out where the SQL Error logs are store...

Enabling / Configuring iDRAC from within ESX

I had an issue the other day – I needed to configure the iDRAC on several Dell servers that were running ESXi, but I couldn’t reboot the systems to get into the BIOS. There are plenty of tools and documents on how to configure the iDRAC on a server running Windows, or even Linux, but ESXi is somewhat of an outlier. After lots of googling, I finally came across http://blog.rchapman.org/post/17480234232/configuring-bmc-drac-from-esxi-or-linux by Ryan Chapman. Here, he shows how to use a tool, IPMITOOL, to configure the iDRAC. My steps were a little different than his, so I decided to document it here in case anyone needs it in the future. BTW – This process requires a Linux machine to compile the tool. I am using Ubuntu 14.04 – Trusty Tahr First – Install the necessary build components This installs not only the build tools, but the multilib package allows a system (64bit in my case) create packages for other platforms (32 bit) sudo apt-get install bui...

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Cats are such majestic creatures

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