7 ms·

This guy's server: http://bash.org/?5273 http://bash.org/?5273 <erno> hm. I've lost a machine.. literally _lost_. it responds to ping, it works completely, I j

This guy's server: http://bash.org/?5273 http://bash.org/?5273 <erno> hm. I've lost a machine.. literally _lost_. it responds to ping, it works completely, I just can't figure out where in my apartment it is.

facepalm 11y ago
Couldn't he configure it to do Bitcon Mining, then go look for it with thermal imaging?
- Wilya 11y ago
  He could, except this quote predates Bitcoin by at least five years. Oldest reference for this page in the wayback machine is in 2003. The quote may be even older than that.
- hga 11y ago
  Back then he could have configured it to search for Mersenne primes (https://en.wikipedia.org/wiki/Great_Internet_Mersenne_Prime_Search https://en.wikipedia.org/wiki/Great_Internet_Mersenne_Prime_...) or the like. There's always been capacious sinks for computer power ^_^. And I think the downvotes are uncalled for, the general idea is excellent, even if Bitcoin mining is iffy in a corporate setting (very bad if you keep them, and the finance people won't know what to do with them, plus their tax treatment is not trivial).
- yyhhsj0521 11y ago
  There are numerous way to heat a machine other then bitcoin mining( actually I doubt if bitcoins mining is the most efficient way)
  - the8472 11y ago
    fsvo efficient
makeitsuckless 11y ago
Been there. Except in my case it was two 8 story office buildings. Stuff was moved in hastily from an acquired company when there was no room in the server room, hooked up because important (mail server), and subsequently forgotten while departments where shuffled around the building and employees left over a period of many months. A week after I started the server started having issues. And nobody knew where it was... Finally found it in some storage room.
iamcreasy 11y ago
What to do in this cases? What are the options?
- secure 11y ago
  Disconnect cables from each switch and see when the ping replies stop :).
  - huhtenberg 11y ago
    Unless it's on a WiFi connection, in which case things get substantially more complicated :)
    - bdcravens 11y ago
      Typically you can login to the router and see machines attached, and kick/ban MAC addresses.
      - rifung 11y ago
        That still won't help you find where the machine is located though. With cables you can presumably just follow the cable when you realize disconnecting one stops the pings
        jevinskie 11y ago
        Wardriving software like kismet will show your the RSSI of the AP. Is it possible with stock hardware to determine the RSSI of connected devices? Then it is just the hot/cold game. I'm sure actual radio triangulation/direction finding would be possible as well but I'm not sure how difficult that would be.
        bdcravens 11y ago
        You could have an electrician identify circuits and start throwing circuit breaker switches to achieve the same result? (obviously might be a bit chaotic, but it'd be a good time to test your UPS infrastructure at the same time, right?)

facepalm 11y ago

Couldn't he configure it to do Bitcon Mining, then go look for it with thermal imaging?

Wilya 11y ago
He could, except this quote predates Bitcoin by at least five years. Oldest reference for this page in the wayback machine is in 2003. The quote may be even older than that.
hga 11y ago
Back then he could have configured it to search for Mersenne primes (https://en.wikipedia.org/wiki/Great_Internet_Mersenne_Prime_Search https://en.wikipedia.org/wiki/Great_Internet_Mersenne_Prime_...) or the like. There's always been capacious sinks for computer power ^_^. And I think the downvotes are uncalled for, the general idea is excellent, even if Bitcoin mining is iffy in a corporate setting (very bad if you keep them, and the finance people won't know what to do with them, plus their tax treatment is not trivial).
yyhhsj0521 11y ago
There are numerous way to heat a machine other then bitcoin mining( actually I doubt if bitcoins mining is the most efficient way)
- the8472 11y ago
  fsvo efficient

makeitsuckless 11y ago

Been there. Except in my case it was two 8 story office buildings. Stuff was moved in hastily from an acquired company when there was no room in the server room, hooked up because important (mail server), and subsequently forgotten while departments where shuffled around the building and employees left over a period of many months. A week after I started the server started having issues. And nobody knew where it was... Finally found it in some storage room.

iamcreasy 11y ago

What to do in this cases? What are the options?

secure 11y ago
Disconnect cables from each switch and see when the ping replies stop :).
- huhtenberg 11y ago
  Unless it's on a WiFi connection, in which case things get substantially more complicated :)
  - bdcravens 11y ago
    Typically you can login to the router and see machines attached, and kick/ban MAC addresses.
    - rifung 11y ago
      That still won't help you find where the machine is located though. With cables you can presumably just follow the cable when you realize disconnecting one stops the pings
      - jevinskie 11y ago
        Wardriving software like kismet will show your the RSSI of the AP. Is it possible with stock hardware to determine the RSSI of connected devices? Then it is just the hot/cold game. I'm sure actual radio triangulation/direction finding would be possible as well but I'm not sure how difficult that would be.
      - bdcravens 11y ago
        You could have an electrician identify circuits and start throwing circuit breaker switches to achieve the same result? (obviously might be a bit chaotic, but it'd be a good time to test your UPS infrastructure at the same time, right?)