|You don't need a router, but it would be much better than using the server to provide firewall and NAT (IMO). |
I couldn't agree more! Considering the cost of a SOHO Router ($50 to 100 USD) they're well worth it. Using a computer to do your NAT means having to have that computer on 24/7. With a router, this isn't necessary and frees the computer up to perform other functions.
The electricity is from an unstable source, but can use an inverter with 4 batteries.
I think you mean UPS (uninterrupted power supply). If you buy a decent one, and IMHO, APC (american power conversion) is the best, they perform conditioning as well as battery backup (in case of a loss of power) and, protection against spikes and brown outs.
It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.