Me: so, how much do you know about electricity? Friend: *don't complete the circuit with your body.* Friend: *I also know, courtesy of CMP "It's never safe to touch a sparkin' wi-ah."*
@ChrisS Hot <-> Ground: 60v. Neutral <-> Ground: 60v
@voretaq7 My home server is pieced together from pieces acquired on eBay.. Runs quite nicely, some SuperMicro MB, came with processors and 4GB RAM for ~$150 shipped. I've been very happy with it.
(fucked up, yes, but electrically fine. Don't connect protective earth to Neutral :-)
I had a friend come over and shock his damnfool self last night (I'm rewiring a guitar amp, so it's open on my table. Jackass had a "Ooh, what's this?" moment)
@JeffFerland Still doesn't make sense. Those Technical Power systems are ground isolated. Connecting Hot to Earthground would produce 0 volts <- Which is the intent of the system, to eliminate the potential for ground loops at the power source rather than signal source. I suppose it's possible your socket doesn't have an earthground, which while illegal still wouldn't surprise me.
@ChrisS It's connected to something... and yeah, an isolation transformer that would be used to make a technical ground would keep that from showing potential. I can't figure out why I'd get it on one circuit... kitchen wiring is normal showing less than 2 volts.
@ChrisS Well, all the grounds and neutral should be bonded on a bus in the basement.... so if it's not the whole damn thing, then that is an issue too
I'm trying to imagine some sort of cluster where hot and neutral are actually two phases just on this circuit and instead of 208, they're at a different phase that generates 60...
@JeffFerland It sounds like you have a leak somewhere on that leg - If it was broken on ALL the legs I could see it being screwy power distribution, but not just one leg
I suppose it's possible there's a high resistance leak somewhere, and the leg has some sufficient resistance to ground enough that it pulls the voltage up to 60v (for very low loads only). I'd bet if you connected anythign that drew noticable power to the leg it wouldn't work, say a lightbulb between ground and neutral.
@ChrisS not a bad test before you start spelunking in the basement actually -- If the lightbulb lights you know whatever's causing it can carry current too.
@JeffFerland I remember reading somewhere that the Honda 1000i and 2000i pure-sine-wave inverter generators that are ubiquitous in off-the-grid Alaska actually give you 60V on the hot lead and the opposite 60V on the neutral lead. Stuff still works.
@JeffFerland Could you have a UPS or some other power-conditioning equipment that happens to do something similar?
@JeffFerland Okay, let's work with this. Santa Claus lives in Alaska, and he is nowhere near the grid, so presumably he uses a Honda generator. And, Christmas was just a few days ago. Do you have evidence that he may have visited your facility? If so, magic cannot be ruled out entirely.
I did some work with Red Gate a while back, and some of that content is now being released online. Hopefully you’ll find it useful and informative. What we have is: Networking: The Crib Sheet When I wrote these pieces, I intended them to be tied together, and I didn’t expect everyone to have the [...]
@Iain Really? I thought the official Twitter feed would be one of the better things to advertise to the community. I lurves me some good Twitter feeds.
oooh it turns out my brother had opened one of my packets of cashew nuts and left half of them when he was here at christmas. It would be rude NOT to have them with the beer
This is the difference between programmers and sysadmins.
Programmers think everything is just 10 lines of code.
sysadmins remember the last time they were called in 2 days over the weekend because of the last time a programmer thought something really was just 10 lines of code
@Iain I'd like to see something come out of the votes on questions (maybe weighted by voter's rep). That seems like a lot more than 10 lines of code though
@voretaq7 The current algorithm is view (and possibly votes though it must not consider downvotes) over some short amount of time... I know bad questions that get all of us gawking commonly get tweeted.
there's a difference between popular and great. Someone can write an awesome, complex answer to a good but obscure question that doesn't get much traffic and it will never be seen vs. some tool writing an obvious spiel about website hacking that gets hundreds of votes
Chris - agreed... I wasn't trying to to put myself down as much as I was trying to say there are lots of better answers out there to more obscure questions that have been ignored and would never get promoted by the twitter thing
@RobMoir I'm seriously considering making a project out of this. January might be "Type like a butterfly, sting like Womble", February might be "Channel Dickens", March "OMG PONIES"
3
Kinda like A/B testing my personality and see what goes over best.
@Holocryptic There was a guy talking about how physical destruction of drives is something only newbs do. Real experts use Low Level Formats. It's government approved!
The best delete tool that (little) money can buy:
EDIT: To counter the detractors
No one mentioned the need for government level security, so arguments with that objective are pointless goalpost shifts. This is good enough for anyone who isn't James Bond or Bruce Wayne. P.S. Governments sanc...
@ChrisS I know, I just felt like using the word "douchecanoe"
And @ScottPack and @ChrisS, I'm really enjoying the comments on that answer. Keep it up - I be learninating. I like how some legit IT workers are actually weighing in on a topic over at SuperUser. A nice change.
To be fair, I've never worked a case where I know someone attempted a "BIOS IMPLEMENTED LOW LEVEL FORMAT", so I can't say for sure what that would look like.
That being said, when I say, "worked a case" I mean "in my professional role as a computer forensics investigator".
I'm not especially surprised he hasn't mentioned secure-erase flash media... They make flash drives that will actually erase things (irrevocably) when a sector erase is requested by the OS (still need to have an OS that will pass the erase request on to the disk, as almost none do, at least by default).
@ScottPack HP computers come with it... It just issues ATA 0x50 (Format) for every sector of the drive. Not especially interesting, and the format command in most OSes has options to do the same thing.
Anyone want to vote that question / answer for the SuperUser QOTW? meta.superuser.com/questions/3848/question-of-the-week-35 There could be an opportunity to make a blog post about it if @ScottPack, @ChrisS or anyone else wants to take it to the hizouse and tell why a certain commentor is wrong
That goes from @Chopper3 down to the newest person that signed up two seconds ago. Talking shop is one thing, and even asking a support-style question once every so often (like, once a month at the most) is probably cool too, but turning it into a support line isn't okay.
You are in a datacenter. It is very loud.
There is a lamp and a server here.
> get lamp
Ok.
> get server
Ok.
> lamp server
What?
> lamp server
Try using a verb.
> lamp server
Dude, VERB the NOUN!
> lamp server
GAHHHHH! YOU ARE DEAD! THE INTERPRETER KILLED YOU OUT OF FRUSTRATION.
YOUR SCORE IS 0 OUT OF A POSSIBLE 1000
I'M NOT LETTING YOU PLAY AGAIN - PISS OFF!
I setup a PBX with asterisk and Elastix as a web GUI. I have all incoming calls set to ring to a ring group of our office personnel in a ringall format. The only issue is the time for Asterisk to pickup and pass the phone call to the VOIP phones to ring from our PSTN lines. It takes about 5 rings...
@Jacob Anything in the asterisk log Is it actually seeing the phone line go ring-high?
we don't actually have PSTN/POTS lines on our PBX (SIP tunnel to the outside world), so I don't know much about how they work. We have the line cards, but just use them as timing sources :-x
On my PC I have installed ESXi (WMware Workstation) & vSphere Client. I want to connect from my laptop to the ESXi Server. Can anyone help me out?
I tried (in vSphere Client) to Add Networking -> VMKernel -> Use vSwitch0 -> check vMotion and Fault Tolerance... and I get an error "There are i...
I've had thoughts of starting a campaign online again. The last one fell apart (long story short I was the campaign designer and another guy ran it as DM/GM and we had some very different views, he like constant dungeon crawl, I like story-line). But the IRL group I'm in is starting up again in two weeks....
The best delete tool that (little) money can buy:
EDIT: To counter the detractors
No one mentioned the need for government level security, so arguments with that objective are pointless goalpost shifts. This is good enough for anyone who isn't James Bond or Bruce Wayne. P.S. Governments sanc...
On my PC I have installed ESXi (WMware Workstation) & vSphere Client. I want to connect from my laptop to the ESXi Server. Can anyone help me out?
I tried (in vSphere Client) to Add Networking -> VMKernel -> Use vSwitch0 -> check vMotion and Fault Tolerance... and I get an error "There are i...
