biscuitswalrus

@biscuitswalrus@aussie.zone

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biscuitswalrus ,

Back in my day, and to this day, Microsoft offers such huge discounts in academia on licensing, and recruit so many students from university, I never saw anything but MS.

I'm glad we are at least in an age that there's alternative to Microsoft in the free and open source space for individuals even when school goes down their path.

biscuitswalrus ,

Same, pcsx2 running yakuza. Started playing it and found trouble. Searched and couldn't believe someone not only had that problem but fixed it themselves!

That person was me. I devolved in the time between. I didn't even know until I went to thank the person and the system told me that email was in use.

biscuitswalrus ,

Post your calibration prints first to show your current settings. Personally I want to see the front and back of your cones of calibration to see if you didn't under expose your print and make your supports too weak.

biscuitswalrus ,

Post your cones of calibration front and back. They reveal if you're exposure is at least something to rule out.

biscuitswalrus ,

Glad you got it working, interesting if the slicer itself was the problem.. When you're loading a file to the printer on my elegoo I'll be able to check the actual layer settings which is ultimately the key since that's how long the lcd will light up and cure the resin.

However supports and rafts are heavily influenced by the slicer so any issues there could be resolved by the slicer software.

Otherwise your hygiene cleaning all sounds like good practice regardless both to remove variables and maintenance.

Glad you got it sorted

biscuitswalrus ,

We call it 'state of origin'

biscuitswalrus ,

Great news!

Is everything the worst?

I'm 43, almost 44, years old and went through a bought of alcoholism during the early part of the pandemic. I went through treatment and have been fine since. However, I can't help but feel that all the news in the last few months is just the worst. Between the AI bullshit, the wars, the effects of capitalism, and the political...

biscuitswalrus ,

I know you already got this but here is it again in my own words: don't watch the news, don't read social media, make personal connections one on one with people and judge your life by your vision and lens. Most people are judging it through a distorted news or social media centric set of glasses and it sounds hopeless. But when you look at your own family and friends you might just realise they're better than you think, you're able to find time to play and connect, you can still work and live with comfort, and your kids can grow up strong and healthy.

Start discarding that which is not truely part of your life, ignore the billionaires, the enshitification and all other forms of uncontrollable and frankly, barely affects you. These societal issues are always painted with someone else's view point.

When you find something that does directly, without someone else telling you it does, affect you, and you're in the mentally healthy place to take on that challenge, that's when you Ave. If you think about it like that, and others did the same, most of our societal problems would be tasked by those who are in positions to do so.

I say this as someone who's currently on 24/7 standby watching someone kind of like you, but going through depression, going through hopelessness, and going through addiction recovery (with all the slip ups). And their life right now is made, but they're so busy fixated on issues they can't either control nor have affects on them. They've got a house, it's part paid off, they've got a well paying job, the owners of that job respect and offering pay rises to them, they've got a partner, who's struggling their best to help them. In isolation they're in luxury. But they get self worked up about other people's business and societal or global issues. For what good? Stay grounded and self aware. Be thankful to yourself for making it so far already, and see the upward trends over the entire life and not the tiny problems of today.

Feeling lost and with no direction, what skill should I learn?

Hi everyone. I am feeling like I've lost any direction after getting laid off earlier this year (was working as an analyst in telecom and very recently landed a much lower position in healthcare data entry due to necessity). I already have several hobbies but I am either burnt out on them or they have lost their luster (similar...

biscuitswalrus ,

My mate started terrarium building.

For very little cost, you can look for second hand fish tanks and go for walks to collect moss, rocks, twigs etc. Weirdly it built more meaning to the more 'I need to move my body so I'll go for a walk'.

Now he likes hiking, and collecting moss along the way.

The actual terrariums are gorgeous too.

biscuitswalrus ,

My grandpa was part of CSIRO mostly around researching waterways and their effect on ecosystems and stuff in what must have been the 50s-90s. A rode scholar and beautiful person. Intelligent and compassionate. I've always been proud of Australia's CSIRO. In the last twenty years I'm glad he's not here to see what they've done to it.

It was for a while part of our Australian identity. We were engineers and scientists who make rational well informed decisions with often limited resources and an abundance of ingenuity.

That part of the Australian pride I had seems lost to time.

Proxmox - Slow network speed

I've noticed recently that my network speed isn't what I would expect from a 10Gb network. For reference, I have a Proxmox server and a TrueNAS server, both connected to my primary switch with DAC. I've tested the speed by transferring files from the NAS with SMB and by using OpenSpeedTest running on a VM in Proxmox....

biscuitswalrus , (edited )

I've used virtio for Nutanix before and not using open speed test, but instead using iperf, gathered line rate across hosts.

However I also know network cards matter a lot. Some network cards, especially cheap Intel x710 suck. They don't have specific compute offloading that can be done so the CPU does all the work and the host cpu itself processes network traffic significantly slowing throughput.

My change to mellanox 25g cards showed all vm network performance increase to the expected line rate even on same host.

That was not a home lab though, that was production at a client.

Edit sorry I meant to wrap up:

  • to test use iperf (you could use UDP at 10Gbit and run it continuous, in UDP mode you need to set the size you try to send)
  • while testing look for CPU on the host

If you want to exclude proxmox you could attempt to live boot another usb Linux and test iperf over the lan to another device.

biscuitswalrus ,

The active, in active noise cancelling means listening by using microphones then playing the exact inverse of the heard sound to cancel the noise, actively. Opposed to passive, which tries to restrict noise like ear protection by enclosing an ear and adding insulation against noise from getting in.

So no, not white noise, though that'll sometimes be generated too. You'll realise quickly most active noise cancelling headphones only listen on the microphones on specific frequencies which is why different settings can allow sound through.

biscuitswalrus ,

Very articulate. Appreciate the post.

biscuitswalrus ,

No.... It's malware. It's not a virus, it's malicious. It's malware.

biscuitswalrus ,

Thieves and murderers the lot of em. Just like my great great granddad before he was shipped here.

biscuitswalrus ,

They took imaging scans, I just took a picture of a 1MB memory chip and omg my picture is 4GB in RAW. That RAM the chip was on could take dozens of GB!

biscuitswalrus ,

Australian native bees can't sting, do a great job of pollinating, and make a little honey on the side. They're very curious from experience with a swarm making a home on my water meter box, but not very scary.

biscuitswalrus ,

AGPS probably does work though for location. Many work laptops have sim cards for 5g, and that means connectivity permanence and assisted gps from cell tower triangulation.

However I know from testing things like m365 login just accepts the ip location of vpn endpoint.

My advice is it depends: and it mostly depends on the effort of the sysadmin and the level of logs they look into. The timing of the log from your vpn connection and your location. If they own the networks you did connect to, those networks will know where you are.

Use your personal device for personal things. End of story.

biscuitswalrus ,

Oh one different situation: because I've been on the side of supplying logs to cyber forensic analysts as part of cyber insurance post breach, the level of scrutiny will matter. If they find you're doing something they don't want on work equipment near or around a cyber incident you'll be part of the post breach recommendations. As in, what to remediate.

biscuitswalrus ,

I'm not sure what to read into tho whole article, it reads like an onion article from a normal place.

Maybe it's me taking the crazy pills today.

biscuitswalrus ,

Ok so you may need to translate a few things.

Routers gateway networks. Networks are extended physically by Ethernet. The ether in Ethernet is basically "to the network it doesn't matter the medium" and in days past that was coax, or whatever Cabling you had but today is almost exclusively in a house, fibre, WiFi, and cat[5/6/7].

Why does this matter? The router is the pivot between networks. Wireless access points are just part of the network.

A wireless router is a device with two functions!

Ok so how does a router work? When you buy a home grade router like an Asus or netgear, you get a device which has a single routing statement "0.0.0.0/0 via connected interface WAN". This works on almost everyones home network because they only have a single network.

A local network doesn't need a router to talk, you only talk when you need to talk to something on another network. Your devices automatically broadcast to every other device on connection or device start up "I'm [mac address] with ip [ip] can you introduce yourself?" and everyone who is online responds back not in broadcast, but unicast directly to that device about their mac address. Your device stores that info in a Mac address table with time outs. This applies to the router too, it knows all the ip addresses on the LAN interface.

Ok now we want to add a second home network to segment IoT away from your highly personal devices with all your personal information. Good idea! So to do that on any "fully fledged" router it's super easy you would connect a cable to LAN2 plan a second IP subnet and connect a switch or AP to that. The router is now a router for network LAN1 and LAN2. If a device needs to get from LAN1 it goes "this IP isn't in my subnet therefore I will send it to the router". It will have no idea if the device is online or offline, it just sends it blindly to the router. Your router gets that IP and now looks at its routing table which now looks like this,for example:

  • 192.168.0.0/24 via connected interface LAN1
  • 192.168.1.0/24 via connected interface LAN2
  • 0.0.0.0/0 via connected interface WAN

So now the router who knows you tried to get to a device within LAN2 from LAN1 will check the mac address table it has for LAN2 and see if there's a mac address it's learned from that device connection. If it does it sends the packet on back unmodified. The packet has return address information saying who sent it, and the IoT device can talk back.

Wonderful, that's the most simplest type of multi-lan network you can create. There are no virtual lans and everyone expects networks to mostly work this way. This exact principle is how the rest of the whole internet works. What networks are via what interface and a traceroute will tell you the resulting path. A router doesn't need to know the destination just the next network.

One last note on the background info, if you don't want to setup everything with static IP addresses, you'll setup a DHCP server which gives out IP details to devices via a lease system, and included can be DNS settings. You must have a dhcp service within a local network. That can be on the router on the LAN1 interface, and another DHCP server with different details on LAN2.

To apply this to your problem, I think you'll want to review the features of your two WiFi routers that you have. Many home routers do not support two discrete LAN interfaces. If they have 4 LAN ports they could be already configured as a "bridge" which is to say they're a switch. They're all grouped all belonging to LAN1. Check to see if you can remove one from the bridge. BTW the WiFi is usually part of this bridge too.

If I had to guess the Asus router is likely more featured and more likely to have the ability to create a new network on a different interface.

The simplest design will be to have your one router be the router for both networks. One wireless router has the router function disabled and becomes a wireless access point connected to LAN2. The router will know all connected networks (WAN/LAN1MLAN2). You won't even need to write in your own route.

But if this is not possible, it is still possible to use NAT. network address translation is a technology for a router to re-write the "return address" on every packet it sends. The return address becomes the routers WAN interface IP. Your network already has NAT because your LAN IP would send to an external network like "1.1.1.1" and if your return l address was "192.168.0.2" then 1.1.1.1 wouldn't know how to get back to you since your IP is used on millions of home private networks. Instead your router uses NAT to keep a table of every single connection to the internet and waits for replies and redirects them back to the right device. It replaces the source address with your ISP assigned public IP. So 1.1.1.1 could have got a return address of 12.23.34.45 your home internet ip.

But this can work on your home network but there's limitations. Just 1.1.1.1 can't randomly reach back out to the original device ever. Only your device can ask 1.1.1.1. If 1.1.1.1 tried to reach back to your public IP the router has no NAT entry for this, and drops the connection.

Do let's take the real possibility that you can't setup two LAN interfaces on your home grade routers. What would you do? Instead could have a second wireless router with NAT enabled (which it is by default). Your second wireless router could broadcast a different SSID and it's network ip subnet address should be different to your home network IP subnet address. So if your home is 192.168.0.0/24 your IOT could be 192.168.1.0/24. Your WAN interface should be setup static on an address that does not conflict with your DHCP scope. Or if it does, go to the dhcp server and reserve it. It should be an ip that doesn't change and can't accidentally be given to another device thereby giving you IP conflicts.

So then your IoT devices now will get that 192.168.1.2+ address and reach to your IOT router to get out of their network. Now this does allow them to talk to your home network devices on 192.168.0.0/24. But the downside is your home lan devices by default can not talk to your IOT devices. This is kind of the reverse of what you want from a security perspective. To configure your IOT you'll need to join the IOT WIFI. Why is this? If you on your home network connected device on 192.168.0.1/24 try to go to the IOT network device on 192.168.1.0/24, then the home device first notes that the network is not local, so it will send the request to the configured gateway. Your home gateway has no idea where 192.168.1.0/24 is either. So it goes out to the 0.0.0.0/0 route which is to your ISPs router.

I'm sure you'll think: if this is backwards why not flip my home network behind my second NAT router? And the answer is NAT isn't free, and you'll probably have heard CGNAT or carrier grade NAT making a mess of games and services. Double NAT has problems too.

So what about dhcp and dns? The simple answer is the IOT router becomes a dhcp server and offers your IOT pihole for DNS. Your home network shouldn't need touching

There are ways to band-aid these two networks. If you know your home router has a proper route table you can modify that. remember you setup the IoT router with a static IP? Well here's why. If you setup a route statement 192.168.1.0/24 via IP 192.168.0.251 (whatever IP is the IoT router) then now your home router can find and redirect traffic. This still occasionally has issues though and this routing statement can create a triangle route which would take a long time to explain, and secondly a fix for that can be more NAT more translation so we can return communication from the same way, but the branching possibilities are still not fully defined. Alternative fixes are on your local computer add a single routing statement to find 192.168.1.0/24 via 192.168.0.251 (or whatever IoT router ip you assigned).

Now my suggestion: get a router which handles two local networks. Then you're topology is pretty much the simplest, easiest to troubleshoot later, avoid Nat.

biscuitswalrus ,

The presenter is borderline unwatcable. If that's you, sorry for any insult.

I tried, I really did

I've been an IT professional for 20 years now, but I've mainly dealt with Windows. I've worked with Linux servers through out the years, but never had Linux as a daily driver. And I decided it was time to change. I only had 2 requirements. One, I need to be able to use my Nvidia 3080 ti for local LLM and I need to be able to RDP...

biscuitswalrus ,

I mean, the rdp is from Linux to Windows for desktop application access, so it's the right tool for that job.

biscuitswalrus ,

I self host rustdesk privately via tailscale and strongly recommend it. I don't always need a desktop but when I do, I'm glad I can use rustdesk.

biscuitswalrus ,

But if I request it there, after its federated everywhere, what happens?

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