I think they have to for tunnels to work. They rewrite the headers so the target server doesn't have to have any special config to recognize abc.example.xyz as being itself.
I think in theory you could get it without it but that would be a lot more work on the recipient side.
Me I'm less worried about that so I accept the convenience of not having to setup a reverse proxy and poke a hole in my router.
In Australia 5 minute spot pricing is now accessible to many residential customers via retailers like Amber electric. With volatile pricing and a large home battery subsidy from the re-elected government, batteries can quickly pay for themselves through arbitrage alone.
EMHASS is an interesting tool to perform the optimisation.
Yep, been using EMHASS for the last couple of years in the UK.
I have a large array (12.8kWp east/west split) but a low export limit of 5kW. In the winter it's charging overnight at 7p per kWh (Intelligent Octopus Go) and then using that stored energy during the day to avoid importing at peak rates, and in the summer it makes sure to discharge most of the battery before the peak generation hours so that battery charges from power which would otherwise be curtailed (discharge to minimise import on my SolarEdge system, but charge from clipped power would also work).
Similarly in Europe; spot market with a big single pay-as-cleared spot auction for every quarter-hour, and then a continuous auction for the same periods closer to delivery, similar to the normal stock market. Millions of residential devices are traded there right now
Frigate recently bundled an instance of go2rtc which can connect to Reolink cameras via http/flv and re-stream as RTSP. This solved my issues with Reolink.
go2rtc also works nicely for on demand transcoding of my H265-only cams to H264 to view the live stream in Firefox.
Multi-port PoE injectors are a nice option to add say 3-8 PoE ports to an existing switch.
More flexible in some ways, I’m using 1 port of my 8-way injector to add PoE to the WAN interface of my router. In conjunction with an active PoE “splitter” on the far end I can remotely power the GPON modem on the other side of the house and power everything from one UPS.
I also made sure to get a Mode A “gigabit” injector in order to power 2x PoE cameras in a location with a single Cat6 drop. On the far end there’s just a passive splitter, each camera only gets 2 pairs which run both 100Mbit Ethernet and PoE. Cheaper “non-gigabit” PoE Mode B injectors save a buck by omitting the isolation transformers and instead inject DC onto the spare pairs, so not compatible with pair scavenging.
MikroTik’s PoE switches also use Mode B. They’re gigabit so have to include the isolation transformers anyway, presumably this is due to their ability to operate in 24V passive PoE mode. I was going to get a MikroTik switch but my pair scavenging requirements drove me down the path of a separate multi-port injector, which worked out to be a lot cheaper too!
8 port injector with a decently powerful 56V power supply was approx $100 via AliExpress.
Only drawback is a bit more cabling and no ability to remote power cycle an individual port.
Here in Australia the coax connection from the street typically goes through a galvanic isolator to avoid this situation, rather than being bonded to the earth.
Open neutrals are no joke but each case does give a good story every time again.
I know a guy who cut a 70mm2 neutral in a factory. They had a lot of single phase drive inverters. I think somethink like 25 inverters had to be replaced (and a lot of other stuff too).
What do you mean by “galvanic isolator”? Link to coax example device? I’ve never heard the term before and a quick google is showing something irrelevant. NZer, so the language barrier exists!
Hadn't heard the term before. Looks like its two diodes in parallel, pointing opposite directions, in a very-expensive box. Blocks low-voltage DC flow while allowing higher-voltage AC currents to pass. Looks like maritime usage is common.
On principle, I prefer to poke a hole in my firewall than allow surveillance of the plaintext traffic.