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• laptop motherboard "shorts" when connected to adapter

  - by Bash

  Disclaimer: I'm sort of a noob, and this is a long post. Thank you all in advance! summary: completely dead laptop with no signs of life whatsoever (suddenly, for no apparent reason) Here's the deal: Lenovo Y470 (only a few months old with no water or shock damage). It stopped working suddenly (no lights, no sound, even when connecting adapter with or without battery). I tried a different adapter (same electrical rating), but no luck. I disassembled the thing completely, and tried plugging in the adapter and looking for signs of life with all different combinations of components installed (tried all combinations of RAM, CPU, USB power cords, screen, etc plugged in). no luck. Then, I noticed (as I was plugging in the adapter to try for the millionth time) that there was a "spark" for an instant when I first connect the adapter to the power jack. The adapter's LED would then flash (indicating it isn't working or charging). So, I thought the power jack has a short of some sort (due to bad soldering or something). Scanned virtually every single component on the motherboard, and tested the power jack connections with a multimeter. No shorts or damage to anything on the entire motherboard. Now I'm thinking I need to replace the motherboard. But, my actual question: What does this "shorting" when connecting the adapter signify? (btw, the voltage across the power connections and current through it drop to virtually zero when the adapter is connected and "sparks", and they stay that way). The bewildering thing is that there are no damaged components, and the voltage across adapter terminals returns to normal after I disconnect it (so it's not damaged). Please take a look at the pictures (of the motherboard's power connection and nearby components) and see if I'm missing something completely obvious... Links to pictures and laptop and motherboard model: pictures on DropBox Motherboard model: LA-6881P Laptop model: Lenovo IdeaPad Y470

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• 64 bit vs 32 bit

  - by user53864

  When I was doing my course MCSA, I'm taught the following: With a 32-bit processor only 32-bit operating system can be installed. with a 64-bit processor both 32-bit & 64-bit operating system can be installed It's said 64-bit os cannot be installed on a 32-bit processor. I just want to make sure the above points because recently I'm asked to installed Windows Server 2008 R2 Enterprize and while installation it showed only x64 and it simply installed it. I was thinking all the computers in my office having a 32-bit processor. If so how it could be possible to install a x64 bit os on a 32-bit processor? or I'm wrong with the 1st point or the processor may be of 64-bit(I don't know how to check). I'm confused... One thing what I know the benefits of 64-bit over 32-bit is faster operation. If anyone could tell me other benefits, it could be helpful for me. Thanks!

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• 64 bit vs 32 bit

  - by user51737

  When I was doing my course MCSA, I'm taught the following: With a 32-bit processor only 32-bit operating system can be installed. with a 64-bit processor both 32-bit & 64-bit operating system can be installed It's said 64-bit os cannot be installed on a 32-bit processor. I just want to make sure the above points because recently I'm asked to installed Windows Server 2008 R2 Enterprize and while installation it showed only x64 and it simply installed it. I was thinking all the computers in my office having a 32-bit processor. If so how it could be possible to install a x64 bit os on a 32-bit processor? or I'm wrong with the 1st point or the processor may be of 64-bit(I don't know how to check). I'm confused... One thing what I know the benefits of 64-bit over 32-bit is faster operation. If anyone could tell me other benefits, it could be helpful for me. Thanks!

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• iptables (NAT/PAT) setup for SSH & Samba

  - by IanVaughan

  I need to access a Linux box via SSH & Samba that is hidden/connected behind another one. Setup :- A switch B C |----| |---| |----| |----| |eth0|----| |----|eth0| | | |----| |---| |eth1|----|eth1| |----| |----| Eg, SSH/Samba from A to C How does one go about this? I was thinking that it cannot be done via IP alone? Or can it? Could B say "hi on eth0, if your looking for 192.168.0.2, its here on eth1"? Is this NAT? This is a large private network, so what about if another PC has that IP?! More likely it would be PAT? A would say "hi 192.168.109.15:1234" B would say "hi on eth0, traffic for port 1234 goes on here eth1" How could that be done? And would the SSH/Samba demons see the correct packet header info and work?? IP info :- A - eth0 - 192.168.109.2 B - eth0 - 192.168.109.15 - eth1 - 192.168.0.1 C - eth1 - 192.168.0.2 A, B & C are RHEL (RedHat) But Windows computers can be connected to the switch. I configured the 192.168.0.* IPs, they are changeable. Any help?

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• Using pre-made patch cables on a punch down block?

  - by Trevor Harrison

  I need to add a 24 port switch to my wiring closet. In the (distant) past, I usually just punched each port of the switch to a 110 block on the wall (using hand-made cables), and cross connect between that and the 110 block that has the runs to each workstation. To save time, I'm thinking of buying 12 pre-made drop cables, cutting them in half (so 24 single ended cables), and punching those to my 110 block. The things I'm worried about are wire type (ie. solid vs. strands) and color scheme. I really don't know if they use different wire types (still?), but I remember that being an issue at one point. Can anyone comment on this? (I definitely won't feel comfortable trying to punch stranded wiring on my 110 block) Also, picking up a random pre-built cable I had laying around, I noticed that the color scheme used didn't appear to be T568B, but T568A, which would clash with the rest of my wall. Anyone know of an online source that specifies these things? I've looked at www.cablesforless.com (which does have nicer prices) and www.cablestogo.com (which seem stupid expensive) so far. Cables For Less doesn't specify wiring scheme, Cables To Go does specify T568B. Both seem to specify stranded wires instead of solid.

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• Default route not on LAN

  - by jarmund

  I have a network that in principle looks like this: H1---\ /----Inet1 H2---->---GW1---< H3---/ \----GW2-----Inet2 H1 and H2 = Hosts that need access to internet with GW1 Inet1 = Internet link over 3G connection Inet2 = 5GHz link to Internet (not always up) GW1 = Works as a router, automatically picking the "best" connection between Inet1 and Inet2 (the latter via GW2). GW2 = 5GHz wifi router And here's the problem: H3 only needs internet access when Inet2 is up. What i was thinking of doing was a routing table that looks like this: route to GW2 via GW1 default route is via GW2 I first set the route to GW2 via GW1 without a problem. But when i try route add default gw 1.2.3.4 (1.2.3.4 being the IP of GW2), it complains "SIOCADDRT: No such device" Is the problem that the default gw i'm trying to set is not reachable directly? Is there a different approach that would allow me to achieve this? An alternative (and hypothetical) approach: Since H3 will be using a static IP, is it possible to do some magic with iptables on GW1 to forward any packets from H3 to GW3, thereby "tricking" H3 into using GW2 as its default router?

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• Is there any way to detect when nginx has completed a graceful shutdown?

  - by Daniel Vandersluis

  I have a ruby on rails application which is running on passenger and nginx, with one main webserver and multiple application servers. I am trying to update my deployment process in order to minimize (or ideally, remove) any downtime caused by the deployment. The main roadblock right now is that passenger takes some time to restart (ie. reload the application), so in order to get around this, I want to stagger my restarts so that only one app server gets restart at a time. In order to do this without losing any long running passenger processes, I am thinking I need to gracefully shutdown the app server's nginx instance, which will cause it to no longer accept new connections but continue to process the existing ones; as well, HAProxy will detect that the app server is down and route new requests to the other server. However, assuming that there is a long-running process, I am not sure how to detect when the graceful shutdown has completed so that I can start it back up. Since the shutdown is caused by sending a signal (ie. kill -QUIT $( cat /var/run/nginx.pid )), and the kill command will return immediately, I cannot combine commands (ie. kill ... && touch restarted), as the touch command will execute immediately, even if nginx hasn't completed its shutdown. Is there any good way to do this?

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• Can I have a single solid state drive and a RAID array on the same machine?

  - by jaminto

  Hi- To summarize, i'm looking to use a single solid state drive as my primary drive, and two conventional sata drives in a RAID 1 configuration for data. I am trying to install 64-bit Windows 7 onto this configuration. Is this possible? Here are the details: I built a desktop that has been running 64-bit Vista on two 500Gb in a RAID 1 array for a few years. I just purchased an Intel X25-M 80Gb Sata Solid-State Drive, and was planning on using this a my primary drive, and keeping the RAID 1 array as my data drive. I added the SSD drive and in the RAID setup, configured it as a RAID 0 array of only one disk. Then, I tried to do a clean install of windows 7 64-bit, but got stuck in the "Missing driver for CD/DVD drive" black hole of selecting driver files and Windows telling me that i don't have the appropriate driver for my hardware. The missing hardware is NOT a CD/DVD drive, since i'm installing off of my only CD/DVD drive. Plus at one point i was able to point it at a driver for my raid controller, and then my hard drives magically showed up as browsable sources for finding drivers for some other unnamed device that setup couldn't recognize. After a few hours of trying drivers (this was a very slow process) i decided to reboot and look at the BIOS settings. I'm using an ASUS M2A-VM motherboard which has an ATI SB600 RAID controller on board. I switched the "On board SATA Type" setting from "SATA" to "AHCI" thinking that since AHCI is an Intel thing, this would help. Unfortunately, this abandoned my RAID configuration, and my previously mirrored drives are showing up as separate drives when i boot into my current windows installation. Am i trying to do the impossible here? Should i just buy a separate SATA/RAID PCI card and plug the SSD into that? Any help would be greatly appreciated.

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• Getting around url block for game

  - by Josh T

  So I play a game called Battlefield Play4Free (www.battlefield.play4free.com). Its essentially a giant browser plugin. The admin on my computer used to have the url battlefield.play4free.com/en/playnow.html blocked which only blocked the page that launches the game (i found a way to launch the game without going to that page and the game worked fine). Now it blocks battlefield.play4free.com which thus blocks all subpages. However, I have found that if I change it to an https and go to https://battlefield.play4free.com/en/login.html to login and then https://battlefield.play4free.com/en/playnow.html I can launch the game. However, when the game launches the borders and everything show but the window content is just a giant blockpage (the same one that shows up when I go to battlefield.play4free.com in the browser) and the blocked page is battlefield.play4free.com (main page). Is there any way I can get around this? I need a way to make the game access the server without going through the browser i.e. make the game use a proxy to get the data or somehow get past the besafe block. I was thinking perhaps you could get around it if you could get the game to make a direct request to the server and not through the url/browser, I know this works because I have a torrenting app that even tho torrent sites are blocked in the browser, the app makes a direct request and thus is not blocked. By the way, the program that blocks everything is besafe or besecure something like that. I do have access to an admin account (on the computer not the besafe program) as well as router access and pretty much anything else. Thanks so much!

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• Strange performance differences in read/write from/to USB flash drive

  - by Mario De Schaepmeester

  When copying files from my 8GB USB 2.0 flash drive with Windows 7 to a traditional hard drive, the average speed is between 25 and 30 MB/s. When doing the reverse, copying to the USB drive, the speed is 5MB/s average. I have tested this with about 4.5GB of files, a mixture of smaller and larger ones. The observations were the same on both FAT32 and exFAT file systems on the USB drive, NTFS on the internal hard disk. I don't think I can be mistaken in saying that flash memory has a lot higher performance than a spinning hard drive in both terms of reading and writing. For both memory types, reading should be faster than writing too. Now I wonder, how can it be that copying files from a fast read memory to a faster write memory is actually slower than copying files from a fast read memory to a slow write memory? I think that the files are stored in RAM before being copied over too, and there's caching as well, but I don't see how even that could tip the balance. It can only be in the advantage of writing to the USB drive, since it is "closer" to the SATA system than the USB port and it will receive data from the internal SATA HDD faster. Perhaps my way of thinking is all wrong or it just depends on the manufacturer of the USB pen. But I am curious.

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• Rack layout for future growth

  - by bleything

  We're getting ready to move to a new colo facility and I'm designing the rack layout. While we have a full rack, we only have 12U worth of hardware right now: 1x 1U switch 7x 1U servers 1x 2U server 1x 2U disk shelf The colo facility requires us to front-mount the switch and use a 1U brush strip, so we'll be using a total of 13U of space. Regarding growth, I'm reasonably sure we'll be adding another 4U in servers, 1-2U of network gear, and 2-4U of storage in the mid-term. Specific questions I'm hoping to get help with: where should I mount the switch? the LEDs are on top... should I group the servers by function with space for adding new machines? as an alternative, should I group servers based on whether they are production or staging? where in the rack should I start? in the middle? at the top? at the bottom? equally spaced? Here's a silly little ASCII diagram of what I'm thinking right now. Please feel free to tear my design apart, I've really no idea what I'm doing :) Any advice is very welcome. edit: to be clear, the colo is providing redundant power with UPS and generator, so that's why there's no power gear in the plan, except for the 0U PDU that I didn't diagram. 42 | -- switch ---------------------- 41 | -- brush strip ----------------- 40 | ~~ reserved for second switch ~~ 39 | ~~ reserved for firewall ~~~~~~~ 38 | 37 | -- admin01 --------------------- 36 | 35 | -- vm01 ------------------------ 34 | -- vm02 ------------------------ 33 | ~~ reserved for vm03 ~~~~~~~~~~~ 32 | ~~ reserved for vm04 ~~~~~~~~~~~ 31 | ~~ reserved for vm05 ~~~~~~~~~~~ 30 | 29 | -- web01 ----------------------- 28 | -- web02 ----------------------- 27 | ~~ reserved for web03 ~~~~~~~~~~ 26 | ~~ reserved for web04 ~~~~~~~~~~ 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | -- db01 ------------------------ 15 | +- disks ----------------------+ 14 | +------------------------------+ 13 | ~~ reserved for more ~~~~~~~~~~~ 12 | ~~ db01 disks ~~~~~~~~~~~~~~~~~~ 11 | 10 | +- db02 -----------------------+ 9 | +------------------------------+ 8 | ~~ reserved for db02 ~~~~~~~~~~~ 7 | ~~ disks ~~~~~~~~~~~~~~~~~~~~~~~ 6 | ~~ reserved for more ~~~~~~~~~~~ 5 | ~~ db02 disks ~~~~~~~~~~~~~~~~~~ 4 | 3 | 2 | 1 |

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• email dropbox between two mutually untrusted sites

  - by user52874

  I've an interesting problem that I thought was straightforward, but turns out I think I'm whistling down the wrong path. It has to do with (shudder) email. I thought I was done with needing to know about email guts ten years ago; I was wrong. Anyway. Simply put, I need to figure out how to relay outgoing email that is not targetted in our domain from our domain into a 'dropbox' in a DMZ, and the Other Guys can retrieve that email from their side of the DMZ and distribute it accordingly, even out to the public internet if need be. There will be no [un-established] traffic coming back to Our side from anywhere; any attempts to do so are dropped with malicious prejudice. Our side is postfix running on scilinux6.1. The DMZ boxes are redhat5.4. The Other Guys are M$ Exchange. The firewalls are set up such that data can go from Our Side downsec to the DMZ, but not upsec from the DMZ into Our Side. Same for the Other Guys. My first thinking was simply to set up postfix on a box in the DMZ and tell them to set up fetchmail or whatever the M$ equivalent is, but then I started remembering that postfix wants to actively relay email onwards, rather than hold it and wait for someone to 'reach in' and retrieve it. I'm not sure I've explained this well, but hopefully it's clear enough that someone can point me in the right direction. I seem to remember having done this before, but it was a looong time ago. thanks!

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• suggestions for firewall/router project using *BSD or Linux

  - by Adeodatus

  Hi All, I have a project in mind and I'd love to hear some ideas on some open source solutions with COTS hardware. I have a few 24 and/or 48 port managed layer2 switches with customers potentially on each port (though its usually about 20-30). Right now the switch has a bridged network and backhaul the traffic to our core to a centralized DHCP server. I need to move them to a NAT solution and, while doing this, I'd like to protect the customers on each port from the customer traffic on the other ports. I also need to be able to port forward from the public side of the firewall/nat box to specific hardware on the inside of the nat machine (easy enough, I know). My first thoughts are to build an appliance-like box (the fewer moving parts the better) that can do filtering and NAT with rfc1918 an address range being handed out via a DHCP server on the appliance. A caching DNS server on the appliance would be a plus since we backhaul everything to the core. I'd like to run FreeBSD but I'm open. Now, to try to limit the broadcast traffic thats visible I was thinking of doing each port on the switch as a different vlan and have the switch do trunking to the private NIC on the FreeBSD/appliance. I'd probably need to do some magic on the freebsd NIC to get this working but it should. We have the parts to build these systems. So, does this make sense? Are there any other solutions out there that we don't have to spend money on but can use our parts to create something? Are there any good distros that could do this already (monowall)?? I may or may not admin this solution so a secure web configuration and management tool would be a plus in the other admins' minds. Thoughts?

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• Is it possible to be a professional studying on your own?

  - by Marc Jr

  I read economics at university(nothing to see with linux, isn't it? :P). I have some basic knowledge about booting process, Linux Kernel compiling from source and stuff like that. But of course I have still much to learn sometimes some errors appears and "voila" I am lost. I had: Ubuntu, Fedora, OpenSuse, Arch.. using Gentoo now. I'd like to know what you linux users, professionals, administrators... would think it is the best way to learn linux in a professional way. Is it worth studying it and passing the LPIC test enough to work in the linux world? or do I need going to IT uni? I've heard LFS is a good way of learning about linux, is that real? I've been thinking about getting to LFS learn about more deeply about the linux process and learning scripts. It is possible to do this way? if anyone has a tip or a good way of doing, maybe someone did it. Any tip is very welcome. Words from a person in love with linux. :D The best, Marc

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• Paused BitLocker encryption because no longer want to encrypt the hard drive - how do I get out of encrypting?

  - by Matthew Nagear

  I'm hoping someone can help. I'm not a techy and can't seem to find the same question already answered. I went to encrypt (using BitLocker) a Buffalo hard drive but after it took about 1 min to reach 0.2% 'encrypted' I decided to pause and eject, thinking this would have ended the encryption process. However, I had already assigned a password to it on the instruction pre the encryption beginning. I've since connected my hard drive again and I'm asked to input the password. If I don't I cannot access the drive. However, if I do, I CAN access the files but straight away the little BitLocker Drive Encryption dialogue box comes up saying Encryption in progress.. which I have the option to Pause. So I hit Pause straight away as I do not want to go through with the encryption. Is there any way I can stop the process and decrypt before encryption is completed? Or am I forever going to need to Pause quickly and eject. I fear that will affect my hard drive longer term. Thanks.

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• redirect from mysite.com to www.mysite.com

  - by jml

  hi there, i know that this has been answered many many times, so if someone wants to point me to another thread that answers my question specifically, that is fine... for right now, my searches aren't yielding many results. so i have a website like mysite.com that has a flash swf embedded in it and i go to www.mysite.com ... all of the sudden, things don't work properly. i would like to get to the bottom of this, because it's not like the page just "doesn't load" at all; it loads and i can only do certain things; as if certain functionality is disabled (might be url requests for specific urls etc). do i need to manage this in my control panel? i wouldn't assume so, because the site loads; just has a crippled functionality from within the swf. i was thinking it might have more to do with my crossdomain.xml file; could this be the case? thanks for any tips or suggestions.

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• What's with the accesses to $random_existing_file/cache/df.php?

  - by Bernd Jendrissek

  Occasionally I eyeball Apache's access_log and lately I've been noticing these accesses to URLs that I don't serve. They're correctly 404'ed, but I'd like to know just who and what is involved here. "Obviously" it's some sort of vulnerability probing; I'd like to know which. (Not that it affects me, but I like to know the score.) Here's an example: 69.89.31.206 - - [28/Nov/2012:17:36:34 +0200] "GET /cvfull.pdf/cache/df.php HTTP/1.1" 404 489 "-" "-" Oddly, all 26 attempts are to either /cache/df.php, or to /cvfull.pdf/cache/df.php - they come in pairs. A few weeks ago it was zx.php, now it's df.php - I'm assuming the target is the same. Perhaps I should be flattered that a script is thinking of hiring me. Seriously, my CV is one of only two PDF files on my site, so I can only guess that non-PDF URLs aren't interesting? I've tried Googling for "cache df php", but my Google-fu is weak at the best of times, so I can only find a few reports of other script attacks. What's the vulnerability being scanned for here?

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• Can you make a Windows network default user profile NOT apply to a certain operating system?

  - by Jordan Weinstein

  I would like to create a network Default User account for Windows 7 only. This is on a Windows 2003 domain with servers from Windows 2000 to 2008 R2 and Windows XP on workstation side. We're about to do a full migration to Windows 7 and I'd like to start using the network default user profile functionality as we're not migrating user profiles over. Want everyone to start clean. I followed the simple steps from this page: http://support.microsoft.com/kb/973289 under the heading: "How to turn the default user profile into a network default user profile in Windows 7 and in Windows Server 2008 R2" but the problem is that profile would then apply to a new user\admin logging into a 2008 server. That's no good. Anyone have any ideas on how to limit what actually uses that network profile? I was thinking about setting deny permissions for all my admin\service accounts on that "\\dcserver\netlogon\Default User.v2" folder but then it might be timing out and cause other problems. Haven't tried yet as that seems like a bad way of making this work.

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• Redundant Microsoft server solution for small company

  - by MadBoy

  I'm planning to change one server Microsoft SBS 2003 with SharePoint, Exchange and SQL database into something that will provide me with some redundancy and won't be single point of failure. I was thinking to buy 2x exactly the same physical servers and put 2 virtualized servers on HyperV or VMWare on each. Then i would put SharePoint, Exchange and SQL on that 1 physical server (shared onto 2x VM's). I would like 2nd physical server to be exact duplicate of the first one so that when 1st server goes down (for reboot or hw failure), 2nd takes care of everything so that users don't even see anything changed (in terms all their emails, sharepoint stuff is available). My questions are: Will I have to pay for licenses for both servers even thou only one instance of SharePoint, Exchange, SQL will be used at same time? What are proposed solutions to do that? Any additional hardware I would need, any complicated software configuration to be expected to configure such redundancy so that when one physical server goes down 2nd one is taking care of rest? What problems should I expect? This solution is for 60 people. Later on it may or may expand.

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• Problem configuring Apache/Wordpress on subdomain

  - by friism

  I have two servers (one LAMP, one Windows) and one website with an associated blog. I'm running the main site on the Windows server, and the blog on the LAMP server, using Wordpress. The main site is accessed at http://folketsting.dk (it's in Danish -- sorry), the blog is accessed at http://blog.folketsting.dk (this link is bad, read on). The main site works fine. The blog works, except for the frontpage. Example of working post: http://blog.folketsting.dk/2009/10/09/ftlive/. The frontpage of the blog (http://blog.folketsting.dk) shows html from http://folketsting.dk however (except for the css and javascript). In fact, any other URL than the frontpage "works", and gets served by Wordpress e.g. http://blog.folketsting.dk/foo. I cannot -- for the life of me -- understand how the LAMP server running http://blog.folketsting.dk manages to serve up content generated by the Windows server running http://folketsting.dk. Looking at the response headers at http://blog.folketsting.dk, it's evident that the content originates from Apache, not IIS. I'm pretty sure it's not a DNS-issue, since the problem is evident even when accessing the raw IP, eg. http://130.226.142.141/ vs. http://130.226.142.141/foo. I'm thinking it's a bad config in Apache... any clues?

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• How to auto-cc a system email account any time a user creates an appointment

  - by Ferdy

  I will not bother explaining my full architecture or reasons for wanting this in order to keep this question short: Is it possible to auto-cc a certain email account any time a Exchange user creates an appointment or meeting in his own calendar? Is it possible using rules? Our Exchange 2007 server is outsourced, I cannot change the configuration or install plugins server-side Preferably, it still should work server-side, because users may use the Outlook client but also Outlook Web Access Is there any other way, perhaps using group policies? My conclusion so far is that the only viable way to accomplish this is to build an Outlook add-on. The problem there is that it will need to be managed for thousands of desktop users and that the add-on will not work when using another client (OWA, mobile). An alternative architecture could be to pull the information from the user's calendar on a scheduled basis. Given that we are talking about a lot of users, scalability is a major issue, this has also been confirmed by Microsoft. Can you confirm that my thinking is correct or do you have any other solutions?

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• What determines what resolutions a laptop is willing to output over VGA?

  - by Joshua McKinnon

  I'm responsible for several conference rooms and have setup 1080p projectors and I provide both HDMI and VGA connectivity. HDMI for DisplayPort and Mini-DisplayPort, and VGA as a fallback, universal option. Contrary to what I expected, people seem to have much more trouble with the HDMI than VGA, so VGA gets used a lot more than you'd think (even as most workstation laptops made in the last 3-4 years have DisplayPort or Mini-DisplayPort...). Also to my surprise, VGA outputs over 1080p on a 50ft cable run with very minimal degradation on certain laptops - other laptops just don't offer 1080p as a resolution choice and top out at 1600x1200 or something else. Specific example: a ThinkPad W530 will do 1080p, a W520 won't, over VGA. (both do 1080p over displayport/mini-DP) What determines what resolutions a laptop is willing to output over VGA? I'm thinking this will come down to either a video driver that says it supports only certain resolutions for output, or limitations of the RAMDAC (which wouldn't be in play, at least DAC wise, on a digital output, but WOULD on VGA, an analog output). The basic reason for the question is that I noticed, say, a ThinkPad W520 with 1080p built in display, will output 1080p fine over DisplayPort to a 1080p projector, but will cap out at 1600x1200 (practically the same pixel count, just a little shy) on VGA. Now, this wouldn't be surprising at all except SOME laptops have no issue outputting 1080p over VGA, even with lower native resolutions. Why do I care? Well if there's some way I could enable it... for situations where my users end up using VGA anyway, it's preferable for display mirroring if they can output their laptop's native resolution, which, you guessed it, is very often 1080p on 15" models. DISCLAIMER: This is primarily a curiosity, I'm not claiming 1080p over VGA is ideal by any means, but hey, if it works. I've seen HDMI start artifacting more over same-length, same gauge cabling (up to 50' run in certain rooms). If you think this is better suited to SuperUser, please move it, but this is framed from an IT standpoint of something that affects a real pool of users in a multiple conference room, 50+ deployed laptop scenario.

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• Windows 7 deployment thru WDS

  - by vn

  Hello, I am deploying new systems on my network and I built my reference computer by installing the OS the manufacturers (Dell and a custom built system from some local business) gave with all drivers, installed all the desired applications. As for the settings part, I'm doing most of it thru GPOs. I want to image my reference computer and deploy it with WDS. i found several links on how to sysprep, but they're all doing it with some differences without explaining them. My questions : How do I manage (into sysprep) the domain join/computer naming part since (from what I understand) WDS manages that? How do I know/determine what I need to setup into my sysprep.xml? Can you sysprep a first time, try and if it fails, do some modifications and try again? I am thinking of doing a basis sysprep, checking what info can be automated and correct that in the answer file. What do I miss if skipping the "audit" mode? I don't plan on re-doing the reference computer... I read that when sysprepping, it resets settings from the reference computer like the computer name, activation/key and such... what setting is sysprep resetting by default that I should be aware of? I must admit I am quite lost about Win7, sysprep, RIS, MDI toolkit, WDS.. I understand the way of doing with XP, but it changed so much with Windows 7! The links I am reading are : http://far2paranoid.wordpress.com/2007/12/05/prep-for-sysprep/ http://blog.brianleejackson.com/sysprep-a-windows-7-machine-%E2%80%93-start-to-finish-v2 http://www.ehow.com/print/how_5392616_sysprep-machine-start-finish-v2.html Thank you VERY much for any answers, they are much appreciated.

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• Better way to design a database

  - by cMinor

  I have a conceptual problem and I would like to get your ideas on how I'll be able to do what I am aiming. My goal is to create a database with information of persons who work at a place depending on their profession and skills,and keep control of salary and projects (how much would cost summing all the hours of work) I have 3 categories which can have subcategories: Outsourcing Technician welder turner assistant Administrative supervisor manager So each person has its information and the projects they are working on, also one person may do several jobs... I was thinking about having 5 tables (EMPLOYEE, SKILLS, PROYECTS, SALARY, PROFESSION) but I guess there is a better way of doing this. create table Employee ( PRIMARY KEY [Person_ID] int(10), [Name] varchar(30), [sex] varchar(10), [address] varchar(10), [profession] varchar(10), [Skills_ID] int(10), [Proyect_ID] int(10), [Salary_ID] int(10), [Salary] float ) create table Skills ( PRIMARY KEY [Skills_ID] int(10), FOREIGN KEY [Skills_name] varchar(10) REFERENCES Employee(Person_ID), [Skills_pay] float(10), [Comments] varchar(50) ) create table Proyects ( PRIMARY KEY [Proyect_ID] int(10), FOREIGN KEY [Skills_name] varchar(10) REFERENCES Employee(Person_ID) [Proyect_name] varchar(10), [working_Hours] float(10), [Comments] varchar(50) ) create table Salary ( PRIMARY KEY [Salary_ID] int(10), FOREIGN KEY [Skills_name] varchar(10) REFERENCES Employee(Person_ID) [Proyect_name] varchar(10), [working_Hours] float(10), [Comments] varchar(50) ) So to get the total amount of the cost of a project I would just sum the working hours of each employee envolved and sum some extra costs in an aggregate query. Is there a way to do this in a more efficient way? What to add or delete of this small model? I guess I am missing something in the salary - maybe I need another table for that?

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• Switch Windows 8 from a hybrid MBR/GPT => GPT only on Macbook Pro Retina

  - by Sid

  I used DiskUtility+Bootcamp Wizard to setup my hard drive for Windows 8 (final MSDN). Somewhere in that process, the Apple tools turned my GPT disk into a hybrid MBR/GPT. All my 4 primary MBR partitions are used up, so when I try turning on Bitlocker in Windows 8, it complains about not finding a System drive. I know on Windows 8 the Bitlocker setup tries to create the 200(?)MB system partition if it's missing. However with all 4 partitions filled I suspect it can't create system drive = it can't find it = throws back an error like "BitLocker Setup could not find a target system drive. You may need to manually prepare your drive for BitLocker". I've already tried disabling hibernation, swap file etc. Now I'm thinking that if I were to get rid of the MBR scheme altogether, perhaps I can be alright within the GPT world without MBR's 4 primary partitions limit. So, how can I get rid of the MBR tables on the hybrid scheme in a manner that still leaves Mac OS and Windows 8 in working conditions? Details: Hardware is the MacbookPro Retina. Primary MBR partitions are consumed as follows: EFI partition HFS+ partition (=encrypted, therefore ="Apple_CoreStorage") HFS+ partition (Recovery partition, contains unencrypted Mac bootloader) NTFS partition (Windows8 all-in-one partition) diskutil list output sid-mbpr:~ sid$ diskutil list /dev/disk0 #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *251.0 GB disk0 1: EFI 209.7 MB disk0s1 2: Apple_CoreStorage 160.0 GB disk0s2 3: Apple_Boot Recovery HD 650.0 MB disk0s3 4: Microsoft Basic Data Win8 90.1 GB disk0s4 GPT vs MBR addresses sid-mbpr:~ sid$ sudo gptsync /dev/rdisk0 Password: Current GPT partition table: # Start LBA End LBA Type 1 40 409639 EFI System (FAT) 2 409640 312909639 Unknown 3 312909640 314179175 Mac OS X Boot 4 314179584 490233855 Basic Data Current MBR partition table: # A Start LBA End LBA Type 1 1 409639 ee EFI Protective 2 409640 312909639 ac Apple RAID 3 312909640 314179175 ab Mac OS X Boot 4 * 314179584 490233855 07 NTFS/HPFS Status: GPT partition of type 'Unknown' found, will not touch this disk.** **: Ignore this message, the gptsync tool is old and doesn't understand the UUID for "Apple_CoreStorage" / FileVault2 partitions. Since LBA addresses are alright, safe to ignore this message.

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