Because is similar to PiHole, and is nice firewall.
Also with PiHole you need to setup a specific VM, or you run on Raspberry Pi.
In this case what I consider is energy cost of 24/24 system up and risk incidence,
in my case a Pi1 cost really cheap in term of electricity and is ok.
Is quite a different concept, in one case a DNS Server and in the other a firewall...
http://www.simplewallsoftware.com/install/
Simplewall Pre-Install Requirements
Minimal system requirements:
- Dedicated hardware/virtual machine with cd/dvd support.
- Hardware must be x86 architecture supported.
- 2GB+ RAM (recommended).
- Two Ethernet network interface.
- 40GB (minimum) Hard disk drive SATA / PATA.
Note: Take a backup of your data as installation process will erase all the data on your DISK.
Requirement for Virtual Machines:
- Refer Installation Help & FAQs.
- Virtual Machine Supported: KVM, XEN, Vmware HyperV
- VM need virtual network NIC and 20GB HDD 2GB ram.
- Configure virtual network adapter so that it can reach internet.