I've terminated them to my patch panel and plugged them into my switch, plugged the NVR into the switch and they talk over that.
SirLagz
you could probably fit 4 in a 4RU case if you just got some really long standoffs between the 2 motherboards. Then just need to dremel out the back of the case and you're set.
It's pretty easy to set up when it's dockerised, but when it's dockerised, it's much more annoying to get the plugins installed / working
They're not cheap everywhere unfortunately. I wish they were cheap for me!
You could do your ideal scenario with LVM or with linux mdraid.
I'm not too familar with ZFS so not sure if you could do it on ZFS.
Graylog is pretty simple
Install, point syslog to graylog, voila
Cisco 3750X with the 10G NIM is also an option if you only need 2 uplinks. It's getting a bit dated though, but can be had for cheap.
pfSense virtual router connect to a FTTP NTD and a Huawei LTE 4G router
It's the multicoloured headers that are to the right of the cap next to the usb port.
Why wouldn't it? A lot of people install games to the default location and the default location for a lot of things, games included, is C:\Program Files
Use the same IP range at both places and give the 2 NASes the same IP address at both places.
If you don't need runtime, any good brand Line-Interactive UPS will be fine.