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• Unreliable resume from suspend?

  - by dsimcha

  My desktop PC (home-built) resumes from suspend somewhat unreliably. I'd say that it resumes successfully about 85-90% of the time and hangs with a blank screen 5-10% of the time. As far as I can tell, the success or failure of the resume is completely random. I doubt it's a software problem because I triple boot Windows 7, Windows XP and Ubuntu and it's similar under all 3 operating systems. If it matters, my system is overclocked, though other than the resume-from-suspend issue, it's definitely rock stable. What are some of the obvious suspects that would cause random, sporadic failures to resume from suspend?

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• Let a program (called by other program) run as admin without prompt

  - by DarkGhostHunter

  As you may know, Steam doesn't like no-admin accounts for installing games or whatsoever. In my case, I have a user in my computer that usually install a lot of games and every time I have to put my password to successfully play them. Blame, /bin/SteamService.exe. I came up with a solution: using RunAs to make Steam run as the admin user. But that is a potential security risk. So instead of that, I'm asking if is possible to do the following: Hot to run SteamService.exe with high trust levels (or admin privileges) automatically when Steam calls it? That way he can play and install games in Steam leaving the rest of the system alone. I don't mind if the user has to click "yes or no", but without prompt its better because some games asks every time they're executed.

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• How can one domain route to an always-changing pool of servers?

  - by ryeguy

  I'm sure this is an easy solution, I'm just not too familiar with how DNS works or if that's even related to this problem. If I'm running a web service on amazon ec2, distributed across many instances, how can I make it so a single domain name can be used to access the entire pool of servers, which will be changing from time to time? Since the instances may be present one second but gone the next (and vice versa), I need a way to randomly pick an active member of the cluster to route to. The updates would have to be instantaneous. Is this even possible, with dns caching and all?

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• How safe is Firefox password manager?

  - by sleeply

  I have been using the Firefox password manager for long time, but never checked/verified how secure it is.

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• Virtual Box start from dual boot systme

  - by Richard

  So for a long time now, I've been running Linux on a dual boot system with Windows 7. I don't run Windows very often, however it happens enough now that I started looking at alternatives to reboots. A friend showed me Parallels on his Mac, and I fell in love with the concept of Virtual machines. Since Sun has been in the Unix space since the beginning of time, they likely have the best solution for Linux (big assumption I know). Anyway, to avoid re-installing windows, as I have it set up the way I like it now, I was wondering if there was a way to point to the existing install and boot from that point. Linux is installed on /dev/sda Windows is on /dev/sdb Having never done this before a little handholding would be great as to what step I should take. Thanks for any help in advance!

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• My Mac Book Pro is turning itself, on my bagpack

  - by J. Pablo Fernández

  This happens to me twice: I press the power button on my Mac Book Pro, I choose sleep, I close it, I unplug everything, I confirm that is off (by pressing my ear to it) and put it in my back. Some minutes latter it wakes up by itself. Both times I caught it in time, well, the second time it was so hot I couldn't touch some parts and it was refusing to actually wake up, the screen was blank. Restarting it worked though. Any ideas what might be going on and/or how to prevent this?

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• config.nt not exist in windows server 2008 64bit

  - by user1853266

  i have a server with high traffic , it's about 20K request/sec at peak time and 5~10k request/sec at normal time but i have a serious problem i install nginx in windows server 2008 standard edition 64bit , but i get this error massage 2012/11/26 05:29:23 [error] 2496#2004: *3976 maximum number of descriptors supported by select() is 1024 while reading client request line, client: X.X.X.X, server: 0.0.0.0:8080 when i search , i found this problem is about dos application file handle limit , and i can be changed it on c:\windir\system32\Config.nt but config.nt not exist i also hear , in 64Bit os version , this file not exist so how can i change file handle in windows server 2008 - 64Bit ?

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• Why does my HDD produce a high-pitched noise when the CPU is in use?

  - by CyberOptic

  I know this is strange. Some time ago, I bought a new 7200rpm HDD for my desktop system (I'll look for the model later). Every time the CPU is used, a high frequency cheep comes from the HDD. I'm sure it's the HDD because the problem does not occur if the HDD is not attached or is in energy-saving mode (I cross-checked by booting from a live CD). What could be the reason for the cheep sounds? Could it be the power supply?

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• Multiple FIle Upload in FTP Using CMD

  - by user697363

  I've large number of files, over 10,000, which I want to upload in FTP server. Now, I can't zip those files & upload it as I've to read those files individually in SAS software for my analysis. If I use mput commant, then the prompt as me to say "y" eact time it tries to upload the file. This is very cumbersome. Is there any method by which it automatically upload the files without I've to manually entering "y" each time file wants to upload. The command I was using was: ftp ftp.myftp.com *my ftp server name username:myusername password:mypassword ftp> lcd c:\local_folder ftp> mput *.*

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• Do I really need to reboot for AD changes to be applied?

  - by stimms

  Every time I request a permission change the IT group at my company instructs me to wait 20 minutes and reboot the computer. I cannot believe that in this day and age you still need to reboot the computer to clear whatever cache stores the permissions locally. It feels like something out of the NT 4 days. Do you actually still need to reboot the computer? Is a logout/login sufficient? Is there still a long time(20 minutes) for the changes to propagate through the AD tree?

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• Fastest security check of file tree on NFS

  - by fungs

  I am currently experiencing very bad performance using the following on an NFS network folder: time find . | while read f; do test -L "$f" && f=$(readlink -m $f); grp="$(stat -c %G $f)"; perm="$(stat -c %A $f)"; done Question 1) Within the loop permissions are checked using the variables grp and perm. Is there a way to lower the amount of disc I/O for these kind of checks over the network (e.g. read all meta data at once using find)? Question 2) It seems like the NFS isn't tuned very well, the same operation on a similar network link via SSHFS take only one third of the time. All parameters are auto-negotiated. Any suggestions?

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• Which PSU should I chose? The biggest is the best?

  - by Shiki

  I'm fully aware of PSU's "Active PFC" and that they won't consume the written W all the time. (Makes sense). But now I'm before a PSU replacement (Guys: NEVER buy a Chieftec. Seriously.) The question is: If one can get a bigger one (in my case 750W and 650W) ... should that person go for the bigger one ? (The difference in price is not much). No, I don't think I'll soon use all that much. (Help (if you want of course) to make the question more generic if the question is really not OK in this form. I've been wondering about this for a time already. In my case it would be XFX Black Edition Silver 750W and 650W)

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• Is there a way to get x-mouse-type scrolling under the cursor for child windows within one program window?

  - by eigor40

  I've been messing with X-mouse setups, to enable scrolling for whatever is under the cursor, regardless of whether it has the focus or not. I've found several ways to get this to work between various 'parent' windows (Win7's built-in mouse options, WizMouse, etc), but I've found nothing that will do the same thing with (for example) several child windows with spreadsheets, open at the same time in one parent Excel window. I have the spreadsheets set up so that two are visible in the window at the same time, but I always have to click on either one to scroll it up and down. I'd love to be able to scroll these just by moving the mouse and doing the scroll, without the extra focus-change-click. I am not a big fan of running separate parent windows for each spreadsheet, which I realize would be something of a workaround. I'd rather keep the single parent Excel window, but still have X-mouse functionality within it. Anyone know of any way to achieve this? I'd call it "XMouse for Child Windows".

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• Is there a difference in page fault rates between CPU bound and I/O bound processes?

  - by user198864

  I was thinking, should there be any difference in expectation of the page fault rate on CPU-bound vs I/O bound processes? At first I thought maybe we could, since CPU-bound processes would likely be using more memory accesses per time quantum, so I expect it would move from locality to locality faster. At the same time, the CPU-bound process is probably given a larger working set... but this doesn't affect the fault overhead as it hits a new locality IF this wasn't pre-paged in. Is there actually any real difference in the page fault rates or am I just musing about something nonexistent? And if there is, how would it impact a real-world OS like linux?

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• Should I install an AV product on my domain controllers?

  - by mhud

  Should I run a server-specific antivirus, regular antivirus, or no antivirus at all on my servers, particularly my Domain Controllers? Here's some background about why I'm asking this question: I've never questioned that antivirus software should be running on all windows machines, period. Lately I've had some obscure Active Directory related issues that I have tracked down to antivirus software running on our domain controllers. The specific issue was that Symantec Endpoint Protection was running on all domain controllers. Occasionally, our Exchange server triggered a false-positive in Symantec's "Network Threat Protection" on each DC in sequence. After exhausting access to all DCs, Exchange began refusing requests, presumably because it could not communicate with any Global Catalog servers or perform any authentication. Outages would last about ten minutes at a time, and would occur once every few days. It took a long time to isolate the problem because it was not easily reproducible and generally investigation was done after the issue resolved itself.

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• Remove dual boot screen

  - by DoubleP90

  some time ago i bought an SSD and since i had to reinstall windows i bought windows 8 with it. I kept windows 7 on my old HDD and i installed Windows 8 on the SSD. For some time i had both, and a dual boot screen would allow me to switch between them. But now i deleted the windows 7 partition and merged it to the partition where i keep all my files, movies etc. But i still have the dual boot screen showing up with windows 8 and windows 7 options. How can i remove the dual boot screen and just make it boot to windows 8?

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• Can't access to a iSCSI volume

  - by jmiguel.rodriguez

  I have a iSCSI target on a customer place I'm using from an old Fedora (Core6) server. I configured it and formatted as ext3 (mistake, now I know) and I've been working with it for some time. Now I need to access this volume from other machine. As far as I've read, I can't do it safely from two machines at the same time (yep, that's the first thing I tried). So I've umount it from original server and tried to mount it on the new server (I did it at first with Ubuntu 10 LTS but when I was unable to do it I installed another Fedora with the same configuration) with no success. The problem: I can see all target on NAS but when I do a "fdisk -l" to see all devices and know which mount I see all targets as SFS filesystem. From the original server I see all SFS (after all, they belong to my customer and don't know what he have in) except the one I manage which I see as 'Linux'. What can I do? Thank you in advanced, regards, jmiguel

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• Vim Misbehaving

  - by zchtodd

  I'm not sure what changed, but lately Vim has been driving me nuts. Whenever I try to do a column mode insert, vim takes my current character and adds to the last character I inserted. For example, the first time I do a block comment by inserting # on multiple lines, it works fine. The next time, however, I end up with ## inserted on every line, and the problem just compounds from there. To do this, I'm hitting Ctrl-V, down or up arrow, Shift-I, #, and then Esc. This worked for months, but now it seems to be pasting extra stuff in. I've tried disabling all .vimrc files, but the behavior remains the same. Any ideas?

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• Fusion 3, Windows 7, frequent blue screens

  - by kenny6127

  Is anyone else seeing this problem? A solution would be great (hey, it's Windows, it's gonna blue screen, just gotta deal with it), but it's also nice to know if it's something specific to my configuration, or if a lot of folks are having the same issue. Here's the details: * MacBook Pro 15" unibody, 4 GB, 2.4 GHz, 10.5.8 * Fusion 3.0.1 * Windows 7 Pro, 32-bit (clean install, not migrated from Boot Camp or anything) Blue screens happen nearly every time the MBP cover is closed for a short period of time (< 3 minutes). If the cover is closed for a half hour or longer, the VM is fine. I'm guessing it might be related to sleep, but that's hard to tell, and the Windows crash dump logs are pretty useless. Thanks!

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• How to revert to "last known good configuration"

  - by Ripley

  Hi Guys. I failed to install ubuntu 10.04 with WUBI, for some reason it's showing me the root partion is not defined. I'm bored to fight with it so I just removed ubuntu in windows. However this installation made my original Windows XP cripple, a normal boot will end up with a blue screen, error code 7E, I'm still able to boot with the 'last known good configuration' tho. My understanding is booting like this will recover things and I'm supposed to be good when reboot, while this is not the case for me, I have to choose the 'boot from last known good configuration' each and every time to work around the blue screen. Could you suggest how could I resolve this? I feel it's foolish having to waste 10 more seconds each time starting the OS.

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• svnrepo + trac hosting

  - by Shikhar

  Does anyone know of a good and economic svn + trac hosting site. Specific requirements 1) trac hooks should be in place, which enables commmit messages to be updated in trac issues. 2) It should have emailTotracScript or MailToTracPlugin installed, with which an issue can be reported via email. If its located in Asia pacific it would be great, as time delay from the US is very high. I am already using sourcerepo.com and its very good. Only short coming is they dont have emailtotrac and the time delay is significant. any other inputs would be helpful. TIA

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• Server Requirement and Cost for an android Application [duplicate]

  - by CagkanToptas

  This question already has an answer here: How do you do load testing and capacity planning for web sites? 3 answers Can you help me with my capacity planning? 2 answers I am working on a project which is an android application. For my project proposal, I need to calculate what is my server requirements to overcome the traffic I explained below? and if possible, I want to learn what is approximate cost of such server? I am giving the maximum expected values for calculation : -Database will be in mysql (Average service time of DB is 100-110ms in my computer[i5,4GB Ram]) -A request will transfer 150Kb data for each request on average. -Total user count : 1m -Active user count : 50k -Estimated request/sec for 1 active user : 0.06 -Total expected request/second to the server = ~5000 I am expecting this traffic between 20:00-1:00 everyday and then this values will decrease to 1/10 rest of the day. Is there any solution to this? [e.g increasing server capacity in a specific time period everyday to reduce cost]

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• How to measure that a host is good for users in Egypt ?

  - by Sherif Buzz

  Hi all, I currently have a site that's hosted in Texas. The majority of my users are from Egypt and I'm a bit concerned that the current hosting is not the optimal in terms of performance. The site is not slow but for how can I know if, for example, hosting it in Europe or Asia is better ? To clarify I need to know there is a way that I can test different hosting options - for example how can I test the average response time between Egypt and a host in Texas, the average response time between Egypt and a host in the UK ?

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• Workstation Build: Single 2.66ghz i-7 with overclock potential, OR Dual 5520 2.26ghz Xeons?

  - by jdc0589

  There are probably better places to ask this, but I am used to the excellent quality of responses on stack overflow. I am rebuilding my desktop in a few months. Aside from normal lightweight internet usage, I use it to run sqlServer, mySql, 1-2 Ubuntu VMs from time to time, lots of IDE's, and a media server for my PS3. The two possible setups cost the exact same amount (within $50) and would both have 12gb 1333mhz ddr3 ram and a 500gb RAID-0 array (250x2). Now, If I go with a single i-7 920 2.66ghz quadcore, I can easily overclock it to 3ghz, and would have cash leftover to get a 160gb ssd (either the ocz vertex or the 120gb intel) for the main OS/Program install drive. Else, I could get a dual lga1366 motherboard with two e5520 Xeon's (2.26ghz),just use the disks I already have. So, do I go for 8 physical/16 virtual cores at 2.26ghz (No overclocking on server boards) with normal disk I/O, or a 4 physical/8 virtual cores at 3.0ghz with really outstanding disk I/O?

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• How to synchronize tasks on multiple computers

  - by SysGen

  I would like to be able to run similar tasks on several computers that must be precisely synced. More specifically I need 4 laptops to be synced, probably over local network, and I need to use one of them to start a task (play a video) on all of them at the same time (different video files on different laptops). All of them are running Windows. Is there a third-party software or any easier way to do so over LAN without significant delay? I need virtually no response time - if there would be a single video streaming on all laptops then people should not recognize the delay.

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