Category Archives for ""

Cisco ASA and Office 365

Office 365 is widely used between many customers. Some of them happen to manage all the Internet connections through a Cisco ASA, not the fancy ASA-X with Firepower, just the plain old 5510. I was asked to allow Office 365 traffic, looks easy huh? Step 1: know your enemy After some Google-fu I found Microsoft […]

Cisco WLC roaming troubleshooting scripts

As it often happens, everything begins with a call from a customer with a problem. The problem is related to WiFi roaming in a warehouse with clients disconnecting from RDP sessions. The clients are industrial PCs installed on forklifts that move quite fast (and dangerously). Second rule of troubleshooting: measure As the first rule is […]

WiFi security 4 dummies

Customer site, their security policy for WiFi is an SSID with a secret PSK: the IT manager type the password on my PC to allow me to access the network. Maybe he’s not aware of my keylogger or that the password con be easily retrieved in cleartext. Let’s see how. Windows 10: retrieve the WiFi […]

OED tools: tmux

The need If you work with Linux machines and you don’t use a terminal multiplexer you’re doing it wrong. What is a terminal multiplexer? It lets you switch easily between several programs in one terminal, detach them (they keep running in the background) and reattach them to a different terminal. The Solution I use tmux, […]

OED tools: bash oneliners

Linux scripting is a skill every network/system engineer should learn in the early stages of the career. Plenty of guides available in the interwebz, The Bash Academy is a good start. A particular type of scripts are the one-liners: just a line of code to solve a problem. This is the latest I’ve used while […]

OED tools: OneNote

The Problem Notes, code and configuration snippets, links, screenshots… where/how to save them and allow and easy/fast way to tag/search them when needed? The Solution In my opinion the best software for notes is Onenote today. One note has a better integration with Windows 10, it’s free, supports multiple platforms and the mobile App actually […]

Cisco Live 2016 Europe

Hi CLEUR! This year, for the fourth year in a row, I’ve attended Cisco Live Europe. I’ve earned the “Netvet” status, that means my name was on the wall before the keynote, ain’t that great? ;-) Aesthetics apart, this year’s event was the biggest I’ve attended so far, twelve thousands people in a huge venue […]

OED tools: Pushover

The problem In my last post about Linux at command I talked about notifications on my mobile. In most of my automation scripts I prefer notifications to come to my mobile instead of via email or SMS (really? in 2015?) because: it is always with me I check it thousands times a day (I know […]

Welcome 2016 Cisco Champions!

With a good amount of surprise I’ve been nominated Cisco Champion for 2016: Because of your impactful and valuable contributions to the IT community, you have been chosen out of hundreds of nominees to be part of the 2016 Cisco Champion program. Congratulations! Cisco Champion resources Communities Twitter list

OED Tolls: Linux “at”

Another post on Linux commands, short and simple but very useful: at. The problem As IT pros we are all comfortable with the change window concept. This window usually opens at night or during the week-end and sometimes the change actually just requires a few commands on a Linux machine. The automation The at command […]

OED tools: Linux command alias

After a few posts about Windows software now it’s time for Linux. The problem Working with the Linux bash sometimes requires to type long commands multiple times. Isn’t that a motivation strong enough to look for a better way? The automation Linux alias is quite self-explanatory, it allows to create command aliases like with the […]

OED tools: Chocolatey

The problem Install software on Windows and keep it updated is a boring and repetitive task. Linux and BSD/OSX users can install software from packages and keep it updated with a simple apt-get update;apt-get upgrade command. Wouldn’t it be great to have the same feature on Windows? The automation Chocolatey is a package manager for […]

OED Tools: ConzoleZ

The problem As many IT professionals I work quite often on the command line with many command prompts open. Windows lacks a good native command prompt software so usually you see monitors filled with black terminals that are hard to manage and track. The automation ConsoleZ allows multiple tabs and to split tabs vertically or […]

OED Tools: 1Password

The problem Security today is a main concern for every computer user. One of the first problem is how to manage password. I see many creative solutions around: post-it or paper only, use of the same password for all services, a spreadsheet inside an encrypted zip file… none of them appear safe or efficient. The […]

OED Tools: NetSetMan

The problem I manage many networks and quite often I work at customer site. For every site I need and IP address, gateway, Wi-Fi network, sometimes proxy, a printer and many other unique network settings. Change IP address on Windows is a process that takes too much time and many clicks. The automation I used […]

Obsessive Efficiency Disorder

I read this blog post from Mattias Geniar and I think he gave a name of a concept I had in my mind from years. It started a while ago when I tried to find a more efficient ways to do my daily work and it got bigger and bigger up to be almost an… […]

VMware VCP5-DCV for a network engineer

Today I passed exam VCP550 and got VMware VCP5-DCV certification. Exam preparation For exam preparation I attended the official training that is mandatory to access the exam. The printed material provided with the training is good enough but I integrated with the great Mastering VMware vSphere 5.5 by Scott Lowe. The official documentation available online […]
1 2 3