Useful I.T & VoIP Ramblings
In my Development Den (the spare room) I have a Raspberry Pi 4 setup with a monitor for use as a quick reference station when working on nearby devices.
With no speakers connected this can sometimes pose an issue when trying to follw a tutorial video, and when I do need audio, a Bluetooth speaker is never around.
There is a SIP phone next to the Pi on my desk, and so I thought; that has a decent network connected speaker, why not use that?
This is what ensued…
This project is so cobbled together I’m almost proud of it, I don’t expect anyone to be able to recreate this exactly but if there are parts of it that help, here you go.
My dog prefers a walk early in the morning as the sun is dawning, so I’d like info on when dawn is along with the current weather forecast, plus very localised info on what the temperature is now and importantly, if it’s raining out.
The go to choice to present this info would be a Raspberry Pi with a small display to allow a quick glance at in the morning.
The info to display on the Pi screen can be sources from a couple of sources;
This is how it comes together…
Continue reading “Pi Weather Display Project”If like me you still have a requirement for a landline, or at least a landline number. Zen Internet offers a “digital voice” package as an accompaniment to its broadband service.
Traditionally this service is provided via its supplied Fritzbox router, utilising its FXS port to supply telephony to analogue devices.
As the service is SIP based, it is possible to connect direct via SIP phones or Asterisk which is ideal should the Fritzbox not be suitable for your requirements. While this is permitted by Zen, it is unsupported.
Here are a couple of examples of getting connected to Zen DV without the use of the Fritzbox.
New job, new laptop; this time it’s a Macbook M1 Pro 2021 model.
Switching to a Mac for daily use takes some getting used to, so my hope at least was to preserve my 3x 1080p monitor setup with the laptop in clamshell mode (lid closed). I’d been accustomed to for many years so was hoping this would aid the transition to a whole new Mac ecosystem.
The specifications and online hear-say suggest that the maximum supported outputs are two monitors plus the Mac’s display. But there is a way to get 3 screens running on an M1 Macbook Pro…
I’ve been playing with KVM on Debian 12 as a candidate for moving away from VMware as a hypervisor on my home server. I’ve been testing by using Debian 12 as VM in ESXI set with hardware CPU/MMU enabled, and virtualisaion passthrough enabled.
I’d like the KVM guests to access the network in bridge mode of the host for direct access to the network. However I faced the following issue:
This one got me for more time than I wish to admit, and seems to have caught others out along the way, this is how I finally solved it…
In a recent post the WAN2 throughput of a Draytek 2763/2765 was tested to see if it could live up to the quoted speeds on the spec sheet.
Now attention turns to its predecessor, the Draytek 2762. For many the 2762 may still be in use as a dependable unit and offers more or less the same feature set of the newer units. But, does it have enough grunt to support the higher speed profiles that full fibre internet offers, and will its hardware acceleration help boost its potential?
With more premises becoming Gigabit enabled, many opt for a 3rd party router over whats supplied from the provider to open up advanced routing and capability. So when maximum speeds aren’t what they’d expect it becomes it’s a choice of hardware or provider to point the blame at.
Draytek’ s current portfolio offers 950Mps NAT throughput on Ethernet WAN ports, let’s see if that is theoretical or expected.
The aim of deploying Zabbix and adding SNMP to Gentoo was to gain better insight on how an Asterisk PBX was performing.
Last of the hurdles was to get data from Asterisk in order to send to Zabbix, however the traditional way of loading the res_snmp.so module in Asterisk was not available, as while the PBX in question utilises Asterisk, its buried under proprietary licensing and a non-standard api, therefore being unable to either add the SNMP module or to query it.
If you are experiencing a similar situation, here is how to extract some stats from Asterisk 16 using SNMP, but without the SNMP module…
For a number of years, I’ve been using MotionEyeOS on my CCTV cameras, exclusively for the “Fast Network Camera” mode that enables RTSP for low bandwidth ingress to the MotionEye (running on CentOS) while maintaining good image quality.
Finding more uses for these Pi’s necessitates moving to Raspbian with MotionEye as the OS version is very bare bones by. Moving from the OS also means losing the Fast Network Camera and streams on the network jump from 2 Mbps to 25 Mbps.
Over multiple camera’s this really adds up, so I need a way replicate the low bandwidth, high quality streams with the versatility of Raspbian. The solution found is to install MediaMTX (formally rtsp-simple-server) …
Recently we’ve moved from an aged Opsview instance to Zabbix for our system health monitoring, which in turn facilitated moving data collector agents from Nagios to snmp.
Many of our PBX’s were deployed from the vendors ISO and so run atop of Gentoo, and it has a couple of issues:
If faced with the same issue, this is how to install net-snmpd from source, add it a startup service and be able to monitor via snmp…
Continue reading “Manually install net-snmpd on Gentoo”