5 ms·
Yet its a free-for-all when it comes to power on?
by blitzar 3y ago
Yet its a free-for-all when it comes to power on?
- nesarkvechnep 3y agoPower ain't free
- paradaux 3y agoWith physical access, sure. The same could be said for shutdown with physical access. Nothing stopping the user without group membership from holding down the power button or unplugging the kettle cable.
- implements 3y agoGrumbles something about standard computer power cables (IEC 60320 C13) not being ‘kettle leads’ (IEC 60320 C15) … Though you can use actual high-temp rated kettle leads if you like - they fit and are safe in C14 sockets.
- Gordonjcp 3y agoYou mean your computer's PSU doesn't need a 120°C rated plug? Bro do you even CUDA?
- bayindirh 3y agoWhen you "CUDA" the heat is the least of your problems. Did you ever see a single core copper cable become brittle like crackers?
- didroe 3y agoIn the UK and Ireland (and maybe elsewhere?), a kettle lead is actually C13. I guess you need a beefier cable/pins in the US, as you're drawing more current at a lower voltage. Most kettles now have a base with an integrated cable though, so the name doesn't really correspond with the cable's most common usage any more.
- deleted 3y ago[deleted]
- JdeBP 3y agoI had a friend who was easily teased by this, but he was quite right, and you are wrong. Kettle leads in the U.K. have never been C13, and "kettle lead" for a C13 power lead is a misnomer just as much in the U.K. as it is elsewhere. When kettle power cords weren't captive, as they are nowadays, they weren't C13. Non-captive kettle cords from the middle 20th century were round pin, for starters, and not like the (later) IEC standard at all. Here's a round-pin electric kettle from the 1960s, for example: https://www.modip.ac.uk/artefact/aibdc-02510 https://www.modip.ac.uk/artefact/aibdc-02510 And "hot condition" or "high current" leads for other devices are not C13 now. Here's a high current power lead from Toolstation, for example: https://www.toolstation.com/uk-plug-to-hot-iec-lead/p21431?utm_source=hackernews https://www.toolstation.com/uk-plug-to-hot-iec-lead/p21431?u... It's mis-labelled "C13" but it's clearly a C15 with a notch. Contrast with an actual C13 lead from Toolstation: https://www.toolstation.com/uk-plug-to-iec-lead/p29256?utm_source=hackernews https://www.toolstation.com/uk-plug-to-iec-lead/p29256?utm_s... Here's a hot condition power lead from BKA, for another example, which is again a C15: https://www.bka.co.uk/iec-c15-hot-condition-power-leads https://www.bka.co.uk/iec-c15-hot-condition-power-leads
- quietbritishjim 3y agoThat first link doesn't support your point. No one would claim that all kettles ever sold in the UK have C13 cables. (No one would even claim that none use C15 – after all, some companies will surely just use the same design across all markets if possible.) This particular kettle is before C13 and C15 were even standardised. The website it's from has a fair number of kettles from the relevant time period (1980s and early 90s). These two (which seem to be variants of the same model) [1,2] have an OKish view of the power connector and look more likely to fit C13 than C15 from what I can make out (no notch). This one [3] is clearly for C15 though, but as I say it's not a surprise that some exist. [1] https://www.modip.ac.uk/artefact/aibdc-001258 https://www.modip.ac.uk/artefact/aibdc-001258 [2] https://www.modip.ac.uk/artefact/aibdc-02488 https://www.modip.ac.uk/artefact/aibdc-02488 [3] https://www.modip.ac.uk/artefact/aibdc-003345 https://www.modip.ac.uk/artefact/aibdc-003345
- totetsu 3y agoMy Japanese kettle has a MagSafe cord.
- jraph 3y agoDoes it have Find My Kettle?
- totetsu 3y agosurprisingly that would have come in handy on more than one occasion.
- deleted 3y ago[deleted]
- master-lincoln 3y ago[flagged]
- totetsu 3y agoSorry I jumped ship from reddit 3 years ago and have been lowering the IQ ever since
- MrsPeaches 3y ago“Please don't post comments saying that HN is turning into Reddit. It's a semi-noob illusion, as old as the hills.” https://news.ycombinator.com/newsguidelines.html https://news.ycombinator.com/newsguidelines.html
- jraph 3y agoI have never posted on Reddit and barely read it. A little fun from time to time doesn't hurt too much, does it? HN can certainly sometime bring us a smile. My "you managed to make me smile" message has been upvoted 21 times so far. It's not a slippery slope, it has always been like this. If it were everywhere every time it would be annoying, but it's not the case.
- paradaux 3y agoAs another post has commented, in Ireland we indeed use C13 cables, and it's pretty common to use this term for that here !
- faangsticle 3y agoWhat about wake on lan?
- robertlagrant 3y agoPoor Ian.
- em-bee 3y agoor type ctrl-alt-delete to start a reboot, if that's not been disabled.
- SoftTalker 3y agoI think at one point that caused a console message: "This isn't DOS" ctrl-alt-delete has not rebooted OpenBSD in a long time.
- em-bee 3y agoi am not surprised. but the irony is that i'd prefer if someone trying to shut down my computer they would use ctrl-alt-del to initiate a clean shutdown/reboot instead of just pulling the power. in fact, if my GUI is stuck somehow, i'd want that for myself too. "This isn't DOS" is rather inconveniencing myself for the sake of purity. i have been there too when i was young.
- throwawaymobule 3y agoif it is followed with the right process for shutdown, I think that message is good. (like vim telling you how to exit, if you hit ctrl-c) does BSD have sysreq commands like Linux?
- derkades 3y agoWhat do you mean? Pressing the physical power button?
- jraph 3y agoYou've been downvoted, but you managed to make me smile.
- _V_ 3y agoJudging by all the downvotes and comments that there are quite a lot of people without sense of humor :-D
- irjustin 3y ago"Login required before powering on"
- olgeni 3y agoSCO OpenDesktop installation manual had something to this tune about booting and drivers :D
- akira2501 3y agoIsn't this essentially what full disk encryption demands?
- doubled112 3y agoIs the machine on or off at the point of the prompt?
- macintux 3y agoYes.
- sillywalk 3y agoBeOS had this: int32 is_computer_on(void) Returns 1 if the computer is on. If the computer isn't on, the value returned by this function is undefined.
- Cloudef 3y agoshould ping local electric company and check that the daily quota isn't filled
- sgjohnson 3y agoWith physical access, if you can touch it, you can own it.
- cpach 3y agoIt was a joke (:
- msla 3y agoI was going to mention something about PXE, but according to Intel it has no security at all: https://www.intel.com/content/www/us/en/developer/articles/technical/network-boot-in-a-zero-trust-environment.html https://www.intel.com/content/www/us/en/developer/articles/t... > As network technology has improved, the limitations of PXE Boot are more apparent. PXE has no mechanism for encryption or authentication, is susceptible to man-in-the-middle attacks, does not scale outside of local networks, and has reliability issues associated with TFTP time-outs and UDP packet loss. [snip] > One of the key issues with PXE is a lack of security. The TFTP & UDP transactions associated with PXE may be the last unencrypted traffic on your network and are trivial to intercept. This boot process goes against the “zero trust” concept applied to today’s networks. However, UEFI to the rescue: > The UEFI Specification introduced HTTP(S) Boot in in version 2.5. HTTP Boot combines the Dynamic Host Configuration Protocol (DHCP), Domain Name System (DNS), and Hypertext Transfer Protocol (HTTP) to provide system deployment and configuration capabilities over the network. Compared to PXE Boot, HTTP Boot can handle much larger files than TFTP, and scale to much larger distances. PXE depends on UDP broadcast You can easily download multi-megabyte files, such as a Linux kernel and a root file system, from servers that are not on your local area network. Because HTTP is now a layer of the network stack.
- AndyMcConachie 3y agoSo I might not be able to turn on my computer because an X.509 certificate expired ;)
- abofh 3y agoYes, but more likely because of clock skew because the battery long ago died. Not that I've ever seen that...
- tinus_hn 3y agoBut how is the network securely going to tell the computer which https server to use? I can get a certificate for any server I put on the network.
- 3y ago
- deleted 3y ago[deleted]
- mewmew07 3y agoreal users get power, few get _shutdown
- unixhero 3y agoHahaha hillarious
- throwawaylinux 3y agoNo, power on already requires membership of group _startup so no security problems there AFAIKS.
- daneel_w 3y agoAs well as _localpresence and _finger.