19. October 2016 · Comments Off on Graphing radiation with a GMC-320 geiger counter using Cacti · Categories: Cacti, Linux, Linux Scripts

A few years ago, right after the Fukushima Daiichi nuclear disaster, XKCD released an awesome Radiation Dose Chart. Also around that time portable geiger counters became much easier to get a hold of and fairly cheap. Me being a data nerd; I researched a variety of devices and decided to get a CQ GMC-320. Its an awesome portable geiger counter that has a USB data-port on it that allows you to collect the CPM via a USB serial port. The following Cacti template and Python script is how I generated the following Graph.

gmc-320

Additional GMC-320 Links

This Cacti template will import/update the following items:

CDEF

  • Trend
  • Geiger – sV [ALL]
  • Geiger – sV [AVG]
  • Geiger – mR [ALL]
  • Geiger – mR [AVG]

GPRINT Preset

  • Normal
  • Exact Numbers
  • MicroSievert
  • Interger
  • MilliRoentgen

Data Input Method

  • GQ – GMC-320Re 3.22

Data Template

  • GQ – CPM

Graph Template

  • GMC-320 – CPM values
14. January 2016 · Comments Off on Monitoring Cisco AP Dot11 Associations in Cacti · Categories: Cacti, Cisco, Networking, Wireless · Tags: , , , , , ,

This Cacti template should work with any autonomous Cisco AP. It will SNMP poll and display all active Cisco AP Dot11 Associations in Cacti. Note the AP I am testing with has an AIR-RM3000AC-A-K9 module, giving me an extra radio.

Cisco Dot11 - Active Wireless Clients

If you do not have a 802.11AC radio installed in your AP then after importing you may need to modify the Graph Template and remove all the Radio2 graph template items; not doing so may cause the graph not to display properly.

SNMP OIDs queried: [SOURCE]

ActiveWirelessClients (for 2.4Ghz radio) = OID: .1.3.6.1.4.1.9.9.273.1.1.2.1.1.1
ActiveWirelessClients (for 5Ghz radio) = OID: .1.3.6.1.4.1.9.9.273.1.1.2.1.1.2
ActiveWirelessClients (AIR-RM3000AC-A-K9) = OID: .1.3.6.1.4.1.9.9.273.1.1.2.1.1.10

This Cacti template will import/update the following items:

GPRINT Preset

  • Normal
  • Exact Numbers

Data Input Method

  • Get SNMP Data

Data Template

  • Cisco Dot11 – Radio0 Associations
  • Cisco Dot11 – Radio1 Associations
  • Cisco Dot11 – Radio2 Associations

Graph Template

  • Cisco Dot11 – Active Wireless Clients