Monday, April 23, 2018

Where is my robot maid?

This article, Amazon Has a Top-Secret Plan to Build Home Robots, is making the rounds but it is kind of depressing. (It is also depressing how many other articles are coming up in Google searches that are just book reports on the Bloomberg article without any getting new details on their own. Bot journalism I guess.) Anyway it makes it sound like we'll never get robot maids. In part because we do not want them. WTF?! I've been wanting one forever! Have you ever met someone that did not want one? OK maybe not for the quoted price but an affordable one sure. When the Hero came out back in the 1980s they seemed just around the corner. Then the whole electronics DIY market seemed to stumble there for a bit while a lot techie types moved into programming for awhile. But the dream was still alive. Google beer fetching robot for example and you get loads of links and videos like this one.

Yet despite having fairly decent voice interfaces, wide spread wireless data links, relatively cheap drones that can follow and pan you around and avoid obstacles getting home, much less self driving cars, most bots seem about as advanced as the Heroes we had back in the 1980s that had nothing but an 8 bit CPU and a floppy drive to work with. So what is the hold up? I don't need a human looking android or even something that walks on legs, which seems to be the focus these days. Show me something that looks like a Johnny 5 and can do laundry and such on its own for a few grand and I'll preorder it now.

Look at the ER1, a platform from over 15 years back now that was basically a frame that you mounted a laptop into. One of the sample tasks was waving a bottle in front of its camera and it would go get one. It was like $700 (with optional arm) plus laptop. I went to a demo they were doing at Frys, got there like 5 minutes before it was supposed to start and was told the salesman had already left because he did not think there was enough people there to make it worth the effort. If only he'd waited to see all the people that left work early to get there after he'd gone. Then I decided to just get one direct online but for some reason they decided to sell only to schools. What you won't even take my money?! Looks like they are out of biz now. Wonder why. Which goes back to my point, we had these 15 years ago. Why don't I have one that can do the laundry by now? We have hardware now that way out performs what we had back then including CPUs, cameras, recognition systems, motors and batteries so it should be simple to at least market something better than we had 15 years ago. The latest security cameras for example do face and even pet recognition of them walking through a room and only cost $299. That was SciFi 15 years ago. Another example NiCad batteries were still a thing then.

Look at this laundry folding robot that was making the news not long ago. Comes in at about $1K and you still need someone to load it? It is little more than this folding board you can get for $10. Why not make it a bit more, put some arms and a camera on it so it hang and or fold the stuff in the dryer and then move the laundry from the washer to dryer? Got room for basket it ought to be able to sort colors and whites at least well enough to make loads too. If you have room for a couple baskets you could pre-sort. Extra points if it is mobile and can be moved into the kitchen to do dishes.

Which brings me to this self proclaimed THE WORLD'S FIRST ROBOTIC KITCHEN that was in the news this week. $75K and all it does is cook and maybe the dishes. It looks like it is actually a kitchen with arms. But from the video it still looks like you have to setup the ingredients for it. They also show it closing the top loading dish washer but not how it gets the plates to put in it. It might make sense in a restaurant but you would have to be the kind rich to have a cook on staff to install one at home.  And again they go on about how life like the hands are. Why does a kitchen appliance need life like hands? How much cheaper is one with grippers and snap in tools instead? The inventor says $75K is about the same price as a standard kitchen but given the median home in the US is $326K I'm not buying it. Anyway a robot that can do the laundry would seem it least as useful plus a lot easier and cheaper to build. Not to mention retro fit, especially if it is mobile and only needs to be placed in front of the washer and dryer.

So in closing Amazon I truly hope you are going to get us something as useful as Alexa has been and not just an Alexa powered Jibo as the the article implies. We do not need an Alexa with more personality. We need one that is mobile with arms.

IDS, IPS and general bad site blocking

Been a fun week. 

Been see a lot of warnings 

like this lately

Still not clear on who ml314.com is but their cert is expired and blocking them seems to have no affect so I did. Same with the other expired certs that came up. If you see a pop up telling you cert is iffy block it. If you have other blocking tools add that domain.

Then I saw a lot of warnings about a known JavaScript miner site being included in sites I'm visiting. Nothing that weird either. The site is t.hanstrackr.com After I explicitly blocked the JavaScript I got a warning it was trying an HTML method from my antivirus!

Then I see this article when looking for why the extension got disabled

 Google cuts fake ad blockers from Chrome Store: Were you among 20 million fooled?
Adremover, the one I was using, was the most downloaded of the ad blockers in the extension store. It was downloaded by 10 million! It also was blocking so much stuff that I had to keep turning it off to use a lot of sites. I'm not sure how long Adremover was off before I noticed but I think all the expired cert warning started about the same time. So I'm not sure calling it a "fake" ad blocker is exactly accurate.

As a stop gap I upped my OpenDNS filtering to include "Adware" and "Hate/Discrimination" though it does not seem to be stopping all that much.
I'm guessing that is because so many sites are moving code to sites on blocked lists and adding other blocker detector to try and force us to turn them off. Note I have no problem with ads as long as they are vetted for malware and do not slow the page loads to a crawl but responsible advertising seems to be mighty rare these days.

I upgraded my internet:

With just my workstation plugged into the modem I'm not really seeing much of an improvement in download speed but upload is better than expect and that was my bottleneck. The cable guy's meter was showing over 900 Mbps down but I did notice it jumped up from ~350 to over 900 close to the end of the test so it is probably a burst speed more than a solid speed. This seems to confirm what I'm seeing. New Spectrum GIG no where near 940 Mbps But then I do not see buffering watching HD content even while running speed tests and downloading updates all at the same time so I don't think download speed will prove to be an issue anytime soon.

There was a bit of a mix up and Starz was not in the bundle I got so had to add that again. Still ended up adding Showtime, Cinemax and Starz plus doubling my upload speed for less than $20 more a month. Not bad. One weird bit though is I seem to have lost channel 511, HBO HD east. They have no clue why. Error says temp issue so maybe will sort on its own. Since I almost never watch live, picking up on the west feed is not biggie.

The new internet setup is kind of strange too. They bring out a modem AND a router. Seems you do not need to use their router and it does not have the phone interface so you need to keep the old modem/router as well just for the phone. Instead of using their router I think I'll stick a pfSense box instead. I was planning on adding one anyway later. I'll need to rewire some stuff though so I'll be on and off probably for the rest of this weekend.

I put one of my old NETGEAR Nighthawk R7000 from before my Unifi conversion in place while I got OPNsense installed This turned out to be VERY bad for throughput but at least I had some protection while I got OPNsense ready.


So now I'm setting up OPNsense.

From what I'm reading in forums and groups, OPNsense is a fork / more user friendly version of pfSense  so I decide to go with it. Also see pfSense® vs OPNsense®: technical comparison and this compare from a guy that installed both. One of the co-founders of pfSense joined Unifi awhile back and the additions they are now making to Unifi fall somewhere in between OPNsense and pfSense from what I as a user see. As I mention below though it seems unlikely current Unifi hardware will be able handle the load of processing high bandwidth data so going with a standalone box makes more sense for probably at least the next year.

I'm using a Dell 745 with an Intel(R) Core(TM)2 CPU 6400 @ 2.13GHz (2 cores), CDROM drive, 2 TB HD and 8 GB RAM. It is just spare I had been using initially for OpenShift testing but is not really powerful enough for any real projects I do these days but well beyond what a Unifi USG can do with a dual-core, 500 MHz processor, 512 MB DDR2 RAM and 2 GB of storage.

Install went smooth (the occasional label did not match the instructions but it was generally obvious what to do next) except for one thing. The DVD image failed half way though coming up because it seemed to be unable to find the USB DVD drive I had booted from. I had even less luck with a USB stick image as they would not even boot but that might have more to do with the age of the PC I'm using. Note when installer the new machine I found the installer went through without error the second time but got the same CD not found error the first time so this might just be an intermittent issue.

Even more detailed instructions can be found in Building a BSD home router (pt. 5): Installing OPNsense

From the picture above you can see It performed well as a router even after turning off hardware offloading but when I turned on full IPS it took a real hit.

The CPU usage is frequently hitting 100% though so I think that is at least part of the problem. I'll need to try swapping in a Dell 780 with a  Intel(R) Core(TM)2 Quad CPU Q9550  @ 2.83GHz box and see it that improves things. For now though it mainly seems to be affecting download and upload so not pressing. This is what the dashboard looks like (WAN IP blacked out here of course).
Just unchecking  IPS mode on the OPNsense Services: Intrusion Detection: Administration page, but leaving IDS enabled, pretty much gets us back to normal.
Having IPS on was also causing check for updates to fail.

Reports

Traffic

So far the traffic reports look about the same as what I'd get from Unifi though in my case it helps me to filter just what is talking or not talking to the outside world. Otherwise Unifi pretty much wins here.



IPS 

Now this is the bit I wanted OPNsense for. Unifi has started adding much of this in but with the CPU their routers have it just can't cope with processing this amount of data. Turning IPS on with the low end USG router people are reporting download speeds in the 50 Mbps range. As mentioned above even the Dual core I'm using for OPNsense is struggling with full IPS on (29905 rules) and drastically reduced max speeds. Granted that many rules is probably over kill. Especially when looking at the alert log and seeing almost all the hits were for this one rule

Unifi has a similar geo filter but currently you can only have on where OPNsense lets you have many.

Both let you get just alerts or drop packets. Note the above test had both set to alert instead of drop. Unifi set to alert only mode hardly affected throughput at all while block mode definitely does. With OPNsense it was not as clear because setting IPS mode on here

Seems drag down the system as if packets are being block even though the rules themselves have their "Action" set to Alert. Though looking at the above Unifi rule that would seem to imply it is blocking these packets yet OPNsense is still seeing them would imply it is working similar. But then too the only IPS alerts I've seen from Unifi since turning alerts on are:
  EVENT TIME
IPS Alert 2: Misc Attack. Signature ET DROP Dshield Block Listed Source group 1. From: 191.101.167.73:46524, to: 10.10.2.48:8078, protocol: TCP, in interface: eth1 11:30 04/18/2018
IPS Alert 2: Misc Attack. Signature ET DROP Dshield Block Listed Source group 1. From: 191.101.167.37:46430, to: 10.10.2.46:8076, protocol: TCP, in interface: eth1 19:12 04/11/2018
An IP that appears to be in Netherlands though the attached phone number and some of the contact info is Czech.

My Unifi IPS setting look like this

Console

Have to say I like the amount of stuff you can cram onto the console. Her I have it in 4 column mode and this is not even everything you can stick on there. Surprised there seems to be no way to hide or shrink the left nav menu as customizable as the rest is.

ssh access

Seems checking Permit password login does not seem to work. You still need to use ssh keys.

Adding speedtest to the OPNsesnse box

This should work but did not for me
curl -Lo speedtest-cli https://raw.githubusercontent.com/sivel/speedtest-cli/master/speedtest.py
chmod +x speedtest-cli

So as a work around I copy pasted into vi from a browser. Note you will need to change the first line from python to python2.7 either way so it can find the python command.
Run it like this

For keeping track create a cron job that writes to a csv file

As root run (changing 16089 to the server ID you want to test against)
/root/speedtest-cli --server 16089 --csv-header > /usr/local/www/speedtest.csv
That sets the headers for you
Then set up a cron job to run with
crontab -e
Note it uses the vi editor so you need to know the right commands for that. Should look like this

Update it appears the crontab is getting overwritten so you may have to redo this from time to time.
To avoid this you need to create a /usr/local/opnsense/service/conf/actions.d/actions_speedtest.conf file and add

[test]
command:/root/speedtest-cli --server 16089 --csv >> /usr/local/www/speedtest.csv
description:Run a speed test
parameters:%s
type:script

message:running speed test %s

After saving run
service configd restart
to load action file changes then
configctl speedtest test
to test it. You should get an OK as a response. Then add as a cron job through the web GUI like this
This should add a line to the crontab but does not seem too. Nor did it run at first even after reboot but then started running later. No obvious reason why but the line I manually added to the crontab disappeared about the same time. Still not adding a line in crontab though so being handled else where.

Once it is running you can download the speedtests results file by pointing your browser to https://192.168.0.1/speedtest.csv (assuming your web interface it on 192.168.0.1 of course)

Odd bits

The LAN interface switched from 192.168.0.1, the static assigned, to 192.168.0.201, a DHCP address, at one point for no obvious reason.

Sometimes the Speedtest.net extension just seems to hang when run while on the dashboard page.

As mentioned above check updated fails with IPS on. It appeared it was because the Core(TM)2 CPU is just not powerful enough to handle both at the same time. But I'm seeing the same with the Quad Core and the CPU is under 40% max.

I found a good starting point for rules in this pfSense post
Basically this sets:

  • emerging-drop
  • emerging-botcc.portgrouped
  • emerging-botcc
  • emerging-ciarmy
  • emerging-compromised
  • emerging-dshield
  • emerging-tor
  • emerging-worm
  • emerging-trojan
  • emerging-mobile_malware
  • emerging-malware
  • snort

Note on Snort. There are a lot of Snort rules. I filtered the list for "snort", selected all then enabled selected which enabled about half of them. I then also enabled Snort VRT/blacklist.
After reenabling IPS mode speed test and load looks like this

Note the much improved CPU usage. That upload is way low but after turning off IPS I got an even worse run and then a slightly better one which makes me wonder if the speed tests are telling me anything. External factors must be throwing them off or something is causing flux in the OPNsense box I can't see.

Note the CPU usage has actually gone up even though IPS is now off which makes no sense at all.

Web GUI seems to have gotten slugish after enabling IPS even when traffic and CPU is low. eventually the dropped packets got so bad I rebooted but it did not seem to help so as a last ditch attempt I repovered the box after checking the cards were all well seated. This seems to have helped at least for now. Speedtest with IPS off

And Speedtest with IPS back on.

Doing more research Seeing 0% packet loss after repower but back to 20% and other weirdness within an hour.

Swapped out the 1 PCIe x1 network card (WAN side) and the 2 PCI cards (the slots the mother board had open) with a 4 port PCIe x4 card in place of the unneeded video card in the PCIe x16 slot and things have improved a lot! The next morning I was still seeing 0% packet loss and higher speeds than I had connected to the modem directly.


Last night I even hit over 40 Mbps up.

This is with these plugins installed
os-acme-client (orphaned)1.13221KiBLet's Encrypt client
os-dyndns (orphaned)1.6_1134KiBDynamic DNS Support
os-intrusion-detection-content-snort-vrt (orphaned)1.012.4KiBIDS Snort VRT ruleset
os-smart (orphaned)1.215.9KiBSMART tools

And IPS on with the same ET and Snort rule sets as before.

Update: 5/17/2018 This are looking better though the results to vary a good bit.


Some of that might be from all that else is going on though. For instance here
There is about 40 mbps down and 5-6 mbps up going on besides the speed test. The fastest download test I was only seeing 8 mbps up because of how fast the security cams were triggering and transferring alert pics to the cloud that day.

I also added a Pi-Hole DNS filter which has shifted some load from Chrome and the OPNsense. To give you an idea here is the dashboard showing the number of DNS requests it is handling.
So simple to set up I will not even try to improve on the instructions. Just in time too as the ad blocker Chrome extension I had been using got caught doing stuff.