opensource

Javier Solis

1 minute read

In this video I discuss transforming an Odroid-H2 into a home network attached storage device using FreeNAS. FreeNAS is a purpose built operating system that can turn any extra PC hardware into a NAS. I needed a place to store a backup of my newly created Youtube video content so FreeNAS was the perfect fit for my Odroid-H2 . The build consists of an Odriod-H2, an NVMe drive, 2 SATA SSD drives, and an emmc storage card. I also created a link aggregation between the two gigabit interfaces on the…

Javier Solis

3 minute read

I’ve made quite a few changes to my site. The first thing you’ll notice is the name change. I decided it was time to move away from the Apextier domain name. I originally received the domain from a close friend. My original intent with the site was using Apextier to run a side job for web dev work years ago. I eventually stopped building websites. Apextier sounded cool at the time and became a useful place for my technical blog. I decided that something like LifeNetEng was more personal and…

Javier Solis

1 minute read

I was digging through some of my old notes and came across a few SNMP networking PHP scripts that I put together for some Proxim AP-4000 access points. I put this script and many others together to help manage these standalone access points before there were wireless controllers. This particular PHP script sets up a while loop to modify some SNMP values to modify AP filters. The SNMP values within this script can be modified to be used in changing other values as well. Your setup will require…

Javier Solis

2 minute read

I finally deployed my wireless raspberry pi network monitoring device at the edge of our wireless network. I installed the smokeping app on the raspberry pi with wheezy via apt-get. I already had a smokeping running on a Linux server, so I setup the raspberry pi to run smokeping in client mode.

Javier Solis

2 minute read

For those of you looking to track your IP space in something other than a shared excel sheet, take a look at open source IPplan. All you need is a linux box with apache and a few other components. Installation is not too hard. I would recommend that you use https to access your build that way your authentication is encrypted. If you were using excel, format your columns to the correct format that IP plan will take and export your excel sheet to a tab delimited file. You can then import that file…

Javier Solis

2 minute read

We use freeradius to 802.1x auth our wireless users. We need to authenticate users that may be on one of two domains. We have an issue with trying to authenticate to the global catalog because we have duplicate user account names that have been created on each domain. That wasn’t my idea and it can’t be fixed, so I have to work around the issue. One way to fix the issue is to have the user append the domain when they authenticate, but we don’t want to make things harder for end users.

Javier Solis

1 minute read

We use zenoss core (open source) to monitor our devices. We have tried zabbix, nagios, and cacti, but Zenoss seems to be the easiest to manage and maintain. I can create custom snmp templates with thresholds that can overlay our rrd graphs. Zenoss also allows you to create email notification triggers based on the severity and threshold set on each graph template. You can see two of these custom graphs in the zenoss dashboard image above. I’m monitoring our wireless dhcp pools and each of the…