Cheap environmental monitoring with Raspberry Pi/Grafana/InfluxDB

I’ve been working on practicing my Python skills by working on getting various temperature statistics from my home server room into Influxdb, Then charting them with Grafana. It’s pretty amazing what you can do with a minimal investment of parts, and a little time. It’s also a chance to get down and dirty on some basic hardware circuit design. Here’s a little overview of a simple project I did to create a very cheap Server Room Temperature Monitor. Continue reading “Cheap environmental monitoring with Raspberry Pi/Grafana/InfluxDB”

Setting up and troubleshooting Palo Alto U-Turn NAT with multiple Virtual Router Instances

At times you may encounter a need to have U-Turn NAT in place on your firewall to allow internal devices to access resources you host (Such as a web-server) in the same Datacenter, by using their public address. Palo Alto has a great KB article here on the subject.  Setting this up is a significant amount of work when used in a environment that is designed for multi-tenancy through the use of Virtual Routers on the PA Firewall. Below are some of my challenges and solutions. Continue reading “Setting up and troubleshooting Palo Alto U-Turn NAT with multiple Virtual Router Instances”