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idatum commented on Customizing tmux   evgeniipendragon.com/post... · Posted by u/EPendragon
homebrewer · 23 days ago
This breaks rsync & many other things that rely on SSH as transport. Try:

  alias ssh="ssh -o RequestTTY=force -o RemoteCommand='tmux new -A -s foobar'"

idatum · 23 days ago
Or just use a different myhost, like "t-myhost" (i.e. myhost != hostname)?
idatum commented on Ask HN: What's the 2025 stack for a self-hosted photo library with local AI?    · Posted by u/jamesxv7
mossTechnician · 2 months ago
1. "Self-hosted" doesn't always mean "on your own hardware." Some people rent VPSes. This helps keep their data safe.

2. The software is provided without modification; I think it would be stranger to remove the encryption.

idatum · 2 months ago
> Some people rent VPSes. This helps keep their data safe.

This is exactly how I self-host Ente and it has been great.

Machine leaning for image detection has worked really well for me, especially facial recognition for family members (easy to find that photo to share).

I have the client on my Android mobile, Fire tablet (via F-Droid), and my Windows laptop.

My initial motivation was to replace "cloud" storage for getting photos copied off the phone as soon as possible.

idatum commented on Microsoft extends free Windows 10 security updates into 2026   arstechnica.com/gadgets/2... · Posted by u/jmsflknr
idatum · 2 months ago
Dang, I was almost motivated to figure out how to get Debian working on my old i5 Surface Laptop 1.

No way I'm tossing it since it works fine (even battery is decent still). But no way I'm spending time with Linux if Win10 will still get updates.

If I will really need another Windows device though, I'll just buy a cheap N100 device.

idatum commented on M8.2 solar flare, Strong G4 geomagnetic storm watch   spaceweatherlive.com/en/n... · Posted by u/sva_
Animats · 3 months ago
PJM issued a geomagnetic disturbance warning, then an action. No emergency actions, and it's already over.

    Msg ID:     104606
    Message Type:  Geomagnetic Disturbance Action 
    Priority:     Action
    Effective Start Time:  06.01.2025 09:31
    Effective End Time:  06.01.2025 12:25
    Regions  COMED

    A Geomagnetic Disturbance Action has been issued as of 09:31 on 06.01.2025 to protect
    the power system from damage or disruptions due to increased geomagnetic activity.
Times are "Eastern Prevailing Time", which is Eastern Daylight Time right now.

Background:

These messages are from the US east coast power grid control room in Valley Forge, PA sending to people at generating stations and other key control centers. This is a slow-moving event. If the grid was stressed, there would be "Pre-Emergency Load Reduction" and "Conservative Operation" actions ordered. If there was real trouble, there would be many more actions. But things never got beyond preparing for trouble.

A geomagnetic disturbance event in 1989 caused transformer damage leading to outages. The solar flux going between power lines and conductive ground induces DC currents into the ground and lines, so that ground potential is different at different points. This causes partial saturation of transformers, and heating. That wasn't noticed until it was too late. So now, DC current in some key AC lines is monitored continuously, so power levels can be reduced if necessary.

Training materials for understanding this:[1] Start at slide 21.

Background info on how a power grid works.[2] Start with "PJM 101"

[1] https://pjm.adobeconnect.com/p63ultsdb2v/

[2] https://www.pjm.com/training/training-resources

idatum · 3 months ago
> Times are "Eastern Prevailing Time", which is Eastern Daylight Time right now.

I'm trying to recall when I last ever saw "Eastern Prevailing Time" used.

Can anyone share why it's used?

I see more use of ET over that (for Eastern US) or better yet UTC/GMT.

idatum commented on Why I run FreeBSD for my home servers (2024)   aumont.fr/posts/FreeBSD-H... · Posted by u/psxuaw
briandear · 5 months ago
Curious what “home servers” are really for. I’ve gone decades without needing a home server — what am I missing out on?
idatum · 5 months ago
I use both a home server and a cloud VM, and they work together. I'm thankfully able to use FreeBSD 14 on my cloud VM (just a preference).

I push data from my home server for easy access on my cloud VM. For example, weather data from my weather station, images/time-lapses from my weather cam. I have no ports open to my home network. Basically just fun stuff without exposing my home network.

I use the cloud VM as an SSH "jump box" into my home network. My OpenBSD box sets up a remote SSH tunnel port. I can then use the SSH -J option to jump through the cloud VM into that home OpenBSD box (as well as chain "jumps" to other home servers).

    * This way I don't need any home server to trust a cloud VM.

    * This mostly is for checking on my Home Assistant instance.

    * I've also fixed some things remotely with an SSH session.
Do I need all this? Well, would be less fun without.

idatum commented on The Alexa feature "do not send voice recordings" you enabled no longer available   discuss.systems/@dev/1141... · Posted by u/luu
ryukoposting · 5 months ago
HN is social media. So there.
idatum · 5 months ago
The test for me in defining social medial is whether its core is based a graph of connections. This is where you lose control in, for example, FB: Meta can infer many details about me without me ever posting anything, such as figuring out my home town based on relatives and school friends -- many other examples.

And this is why I no longer use any Meta products.

What I can do is help my family and friends understand the choices they are making (e.g. use Signal to talk to me). That rush they feel posting something has effects on people in their graph and now they at least understand that and pause.

Another example is ancestor "research" type sites, or DNA tests to find "your true ancestry". I had no choice a cousin of mine chose that as a hobby.

idatum commented on Tailscale is pretty useful   blog.6nok.org/tailscale-i... · Posted by u/thm
sfink · 6 months ago
If I'm understanding correctly, this will break whenever the IP address of your tunnel changes. You'll have to reestablish all of your connections.

My use case for tailscale: have an SSH (or other) connection to my home server while working from home. Drive to a coffee shop, register on their network, and continue using the same connection. (Or hotspot, if I'm somewhere without Wifi.)

The IP address of my server does not change. When at home, the packets do not leave my home network. When out and about, they do.

It's magic to me. I set up a sophisticated (read: overkill) SSH tunneling setup previously, using Match rules in .ssh/config to autodetect the network I was on so that `ssh myserver` would always go via the correct route. But my connections were still interrupted broke when I switched, and I'm not good enough at networking to do any better.

(I guess this is what Wireguard is for? I could access my server via a fixed IP address on my machine that goes to a tun device, and that would send the packets to the actual server if nearby otherwise hand off to the carrier pigeons? Is that what the tailnet is doing? I don't understand how packets get intercepted by tailscaled, though I do see a tailscale0 device. Is that just a vanity license plate version of tun0? Why does `ip route show` give me only routes through my actual devices, then? Never mind, this isn't a helpdesk. I'm just getting old and stupid, I think.)

idatum · 6 months ago
> If I'm understanding correctly, this will break whenever the IP address of your tunnel changes. You'll have to reestablish all of your connections.

The tunnel is on localhost only. The VM has a static IPv4/IPv6 with DNS.

Connecting the SSH tunnel from my home is stable as well as connecting to the VM remotely.

I do appreciate Tailscale and Wireguard. I was more responding to the fact that I don't have to trust any provider here, other than the one keeping my VM running.

Also, there's tmux for preserving sessions.

idatum commented on Tailscale is pretty useful   blog.6nok.org/tailscale-i... · Posted by u/thm
iamdamian · 6 months ago
I'm curious to hear well-informed reasons from this crowd for why we can trust Tailscale given the non-self-hosted part of the architecture? Does it come down to Tailnet locks [1], not worrying that Tailscale will be compromised, not worrying that your home network is worth compromising, or something else?

[1]: https://tailscale.com/kb/1226/tailnet-lock

idatum · 6 months ago
I still find SSH adequate for connecting to a home server remotely. I don't have the CGNAT terrible problem but I also don't do any port forwarding on my home router.

Instead, I have a VM running on a cloud provider that I SSH to from an OpenBSD box inside my home network. The SSH connection establishes a reverse SSH tunnel. This opens a port on the cloud VM to tunnel to my OpenBSD sshd port.

With the reverse proxy to my home OpenBSD box established, I can use the SSH jump box option, -J. I connect to the cloud VM and "jump" through the tunnel to the OpenBSD box at home. You can even specify multiple jumps if I need to connect to another machine in my home.

I can also set up a local tunnel through that jump for things like connecting to my Home Assistant server from my remote laptop or phone.

I only have to trust my cloud provider.

idatum commented on The HP-35: Consumer Electronics, an Origin Story   codex99.com/design/the-hp... · Posted by u/wyclif
glimshe · 6 months ago
People take ubiquitous calculating power for granted today. But back in the day, a portable or semi-portable machine able to do math in milliseconds was magical. It was as cutting-edge as ChatGPT, something that came straight from Science Fiction.
idatum · 6 months ago
I am thankful my father-in-law gave me his HP-35 purchased in the early 1970s. With it came a metal case with a lock and a base you would bolt to your desk. It was a precious item back then.

Thankfully the power supply still works so I can take it out every so often and enjoy the history of it.

u/idatum

KarmaCake day547October 6, 2019View Original