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TCP and Port Filtering / Firewalls with WinSock
Introduction This is in reference to the following article: http://www.codeproject.com/Articles/85602/PortQry-Implementation-using-TcpClient-Socket-and It’s been a few years since I’ve looked at this...
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Plain Vanilla SEO (Search Engine Optimization)
A common sense explanation and realist approach to Search Engine Optimization I was reading through some articles on my father in law’s company blog /ebscospring/ in relation to ISO certifications. I...
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Securing Industrial Automation Networks – Part 1: Lingo and Regulation
We are currently working on a project to implement a security design around our Industrial Automation Networks in the Field. These range from gas measurement shacks with a single valve all the way up...
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DNS Reverse Lookup in Excel
I’m always looking for this, so I figure here is as good as any for safe keeping.. It’s simple to use… Press Alt-F11 in Excel to get to the VBA screen. Right click on the Project View Click Add Module...
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DS3/T3 Circuit Testing from the IOS Controller CLI
Bert Testing loopback local Puts the locally attached DSU (Internal to the Router) in Loop. This allows the testing of the local Card for errors with the line driver or modulator loopback remote...
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Followup: DNS Lookup and Ping in Excel
Steve asked on my previous posting in regards to DNS Lookup in Excel if forward lookup could be done. (Find the IP Address from the Hostname). Believe it or not I one up your request. How about DNS...
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Cisco Telepresence Content Server: Windows Media Services Multicast and QoS
So we have been working diligently to resolve an issue in relation to a vendor deployed Cisco Telepresence Show and Share setup. We ended up with through the troubleshooting process with two...
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Rolling a Domain Password
So I get extremely frustrated having to change my password every 60 days because the security department has this belief that somehow that is going to prevent the nightmare at Sony from coming down...
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Using TCL to provide WoL Services from a Cisco Router
This exceptional bit of code provided by Jónatan Þór Jónasson is a masterpiece. It provides the ability to send Wake On Lan commands out the local interfaces of a router to WakeUp a device. You will...
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Named Pipes with Putty and Tftp32 Syslog
Tftp32: Enable Syslog in Global tab of Admin Panel Enable Forward msg to pipe Tftpd32Syslog on the SYSLOG tab. Windows Powershell command to view created Named Pipes:...
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INMARSAT BGAN Service Automation
We are currently working on a project to implement DMVPN (IWAN) over BGAN. This is the process I went through to discover how to send AT commands from our Cisco IOS Router to the BGAN unit. Router...
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Linux/UNIX Pipes File Descriptors, and Process Substitution
Linux/UNIX Pipes File Descriptors, and Process Substitution POSIX Shell – A logical container providing an environment and a set of commands to interact with a UNIX and/or UNIX-like system. Examples...
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Negative Overflow of 4-byte AS in Solarwinds Orion Output
4-byte (32-bit) BGP Neighbor Information with AsDotNotation A problem currently exists within Solarwinds where 4-byte (32-bit) ASNs overflow into a negative number when utilizing a portion of the...
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Debian 7 Wheezy Installation in FreeBSD 10 Jail
I decided to collapse the multiple systems I have running various flavours of Linux and BSD into a single system. For a long time I had been using Windows Small Business Server. Well I don’t really...
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Install Ubiquiti Video NVR debian in FreeBSD Jail
First, if you haven’t already done so, create a debian 7 template jail. See my previous post ‘Debian 7 Wheezy Installation in FreeBSD 10 Jail‘ if you need assistance on doing so… Clone your...
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Execution Performance, Linguistics, Totalitarian Elitism, and of course...
I’m an elitist in the worst way sometimes, so this is probably the pot calling the kettle black. But I simply want to pose a question, that no doubt will spark great debate among a very divided...
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Troubleshooting High CPU Utilization on Cisco Routers
I had someone question me as to why the router appears to be misreporting its CPU utilization… So as I haven’t written anything around this topic, I figured I would make a note for any future engineers...
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fully dynamic fluxbox menu
I needed the ability to generate a menu dynamically in Fluxbox for various things that change on a regular basis. Unfortunately, there doesn’t appear to be a facility built into fluxbox to allow for...
View ArticleCisco Auto-Provisioning Lab
So I have had need to quickly build a provisioning server for a lab to auto provision devices as they come online. This is the basic steps to accommodate this. Note there are far more complex and...
View ArticleSizing your Internet/WAN Edge
The internet is getting faster and faster. I now have Gigabit Fiber delivered to within a foot of my home router. The carrier then is kind enough to provide a smart jack that converts the fiber...
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