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  • What's a worthwhile test for a new HD?

    - by Michael Kohne
    I work for a company that uses standard 2.5" SATA HD's in our product. We presently test them by running the Linux 'badblocks -w' command on them when we get them - but they are 160 gig drives, so that takes like 5 hours (we boot parted magic onto a PC to do the scan). We don't actually build that many systems at a time, so this doable, but seriously annoying. Is there any research or anecdotal evidence on what a good incoming test for a hard drive should be? I'm thinking that we should just wipe them with all zeros, write out our image, and do a full drive read back. That would end up being only about 1 hour 45 minutes total. Given that drives do block remapping on their own, would what I've proposed show up any infant mortality just as well as running badblocks?

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  • Any reasonable UPS for a Desktop PC, just to shut it down?

    - by Michael Stum
    While I do have a surge protector to protect against overvoltage (hopefully), I have nothing against undervoltage. When a lightning storm hits, I had the lights flickering at some point. The PC continued to run, but it got me thinking of getting a UPS as a way to a) have a clean 120V/60Hz power source and b) have a way to shut down the PC in case something bad happens. I heard not all UPS' protect against power spikes, so I wonder if someone has a recommendation? It does not need to keep the PC on for a long time if the power goes out, it's good enough if it shuts down the PC after 5 minutes or so. There are 2 PCs connected. One is a Core i7-860 with a Radeon 5870 running Windows 7 Ultimate (so quite power hungry. It uses a 600W PSU but I have no measurements of the actual usage), the other one is a Windoes Home Server, running WHS/Windows Server 2003. Any recommendations in the low-price segment?

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  • Is setting an empty/blank DNS A record allowed?

    - by John
    I'm trying to wrap my head around the wonderful world on DNS. I have created a zone file for example.com which contains: @ A 1.2.3.4 * A 1.2.3.4 However I am also setting up my local DNS, local.example.com which I have created a separate zone file for containing the following: machine1 A 192.168.0.1 machine2 A 192.168.0.2 When I dig machine1.local.example.com it returns A record 192.168.0.1, great. Sadly, badmachine.local.example.com returns 1.2.3.4, as does local.example.com. I'm not sure of the best way to prevent this. If I add the following to the local.example.com empty A records are returned for the above 2 examples as is the behaviour I desire: @ A * A Is this allowed? Is this best practice, or am I doing things terribly wrong? I'm using PowerDNS with BIND backend. Thanks for your thoughts!

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  • Git SSH RSA keys

    - by Michael
    I thought I set up my key pairs correctly -- I can do git pulls. I can do git commits. But when I do a git push, it counts objects, decompresses, then says: fatal: the remote end hung up unexpectedly. What's the issue here? I'm a super user, so it's not folder writable / readable access problems -- it must be the way I set up the encryption key pair... how do I debug this ... since git pull works?

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  • In what platforms/browsers does Adobe Flash come preinstalled?

    - by Michael Haren
    In what platforms/browsers does Adobe Flash come preinstalled? I'm pretty sure neither FireFox nor Safari include it on any platform but Chrome on Windows does (not sure about Mac or Linux). What about IE on a completely vanilla Win XP system? Or Win 7? Maybe mfgs like Dell add it if MS doesn't? Perhaps we can find (or build) a comprehensive list. Considering that Flash is a significant piece of the web platform, I hope I've asked this on the right place.

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  • How to get linux to stop asking "There are # rows, list them anyway? [n/y]" for auto-completing

    - by Michael
    How do I get tcsh to stop asking if I want to list files in a directory that may have a lot of auto-completes? For example, if I do: xemacs ../"TAB" to get the list of files it asks: There are 371 rows, list them anyway? [n/y] I don't want it to ask this, just list them.. it's getting tiresome. (Or how to at least set the tolerance to a higher number of auto-completes before it asks) Thanks.

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  • How to rsync just the current folder?

    - by Michael
    I want to sync some files from a remote server to my local computer. How can I make rsync to just copy the files with a certain file extension in the directory but no subdirectories? I assumed this to be an easy task, but embarassingly I'm not getting it for nearly 2 hours. So could someone give me an example? I did various experiments with something like the following command: rsync -a --include=what? --exclude=what? -e ssh [email protected]:/test /test

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  • Download resume support blocked by isp?

    - by John Doe
    Can ISP block resume support for downloads ? I'm using IDM (internet download manager) to download of the internet from resume supported websites, yet I am unable to resume downloads. I tried different computers with the same result. Turned off firewall, didn't have any effect i was able to download with no issues until a couple of days ago. Another thing i noticed is that before IDM used to try to connect to several connections to speed up my download, but now it can only connect to one connection. Also i tried to download using my vpn, and i was able to download and resume downloads with no problem.

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  • How do I use a custom 503 error page with Nginx?

    - by Michael Gorsuch
    Hi. I have implemented rate limiting with Nginx (which works excellently, by the way) and would like to display a custom 503 error page. I have followed examples on the web without luck. I am running a simple configuration that looks something like this: listen x.x.x.x:80 server_name something.com root /usr/local/www/something.com; error_page 503 /503.html; location / { limit_req zone=default burst=5 nodelay; proxy_pass http://mybackend; } The idea is that our rate limited users would be shown a special page explaining what was going on. The rate limiting is working, but the built-in 503 page is rendering. Any ideas?

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  • mod_rewrite and Apache questions

    - by John
    We have an interesting situation in relation to some help desk software that we are trying to setup. This is a web based software application that allows customers and staff to log into it and access tickets and supply updates, etc. The challenge we are having deals with the two different domains that we use and the mod_rewrite rules to make it all work with our SSL certificate that is only bound to one of the domains. I will list the use case scenarios below and the challenges that we are having. If you access http://support.domain1.com/support then it redirects fine to https://support.domain2.com/support If you access http://support.domain2.com/support then it redirects fine to https://support.domain2.com/support If you access https://support.domain1.com/support then it throws an error of "server cannot be found" If you access https://support.domain1.com/support/ after having visited https://support.domain2.com/support then you are presented with a "this connection is untrusted" error about the certificate only being valid for the domain2 domain instead of the domain1 domain name I have tried just about every mod_rewrite rule that I can think of to help make this work and I have not been able to locate the correct combination. I was curious if anyone had some ideas on how to make the redirects work correctly. In the end, we are needing all customers and staff to land at https://support.domain2.com/support regardless of the previous URL combinations that they enter, like listed above. Thanks in advance for your help with this.

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  • Exchange 2010 SP1 upgrade prerequisite checks fail for KB979744, but update fails as Not Applicable

    - by Michael Shimmins
    I'm trying to install the SP1 update to an RTM Exchange 2010 box. The Client Access Role Prerequisites are failing, complaining that KB979744 isn't installed. I downloaded the update and tried to install it, however it will not install complaining that 'The update does not apply to your system'. A discussion on TechNet indicates that I need .NET 2.0 or 3.5 installed (both are). Aside from that I've been unable to find anything helpful. Hopefully someone has encountered this and knows how to get around it, don't really want to use up a support call on this. Edit: This is on a 64-bit edition of Windows Server 2008 Datacenter (without Hyper-V) SP2.

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  • Win 7 64 with 8 gig of ram, getting running low on memory errors.

    - by John
    I have a new Dell laptop running Win7 64 with 8 meg of ram. If I leave the system running overnight I start getting low memory errors the next day. Looking at task manager it shows 6.27 gig used but looking at the processes list the totals don't show nearly that much. I am showing all processes from all users. I have also looked at the processes with PRocess Explorer and see the same results. Using resource monitor I see 4165 MB in Use, 2328 MB Modified and 1352MB Standby with only about 345 MB free. These numbers don't seem to add up to what I have running. I have Visual Studio 2010 running along with a number of IE8 sessions. I have run the same set of apps with XP SP2 32 bit with 4 gig of memory and never had this sort of problem. What is Modified memory? What is Standby memory? Any suggestions on what might be the issue and what might be a fix? TIA J

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  • Is LDAP typically used in conjunction with SAP?

    - by michael
    I have potential clients that all use SAP. To avoid silent push back from IT, we want to make sure we don't add extra complexity to their job if the client (our client internal to the company is not IT) wants to adopt our SaaS. One way to avoid headaches is to add support for LDAP in our SaaS (a bit of work, but nothing major) ahead of time and make sure to mention that to IT. I really know nothing about SAP. Does SAP use an internal or external LDAP server usually? Updated question: A Company relies on an Asset management product from SAP. If I wanted to provide a SaaS that shares space in their workflow, is it advisable to use the SAP product authentication service (if it exists), and if so, do they provide an API?

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  • Looking for concise set of instructions for upgrading Vmware 5.1 to 5.5

    - by Michael Martinez
    I'm trying to find a set of instructions for upgrading Vmware (ESXi and Vsphere) from 5.1 to 5.5, but all I'm finding online is a bunch of separate, incomplete knowledgebase articles which is making it difficult to get an overview of what's involved. What I'd like is a single, concise document that lists the steps involved. It could be a free online article, someone's blog, a small booklet, someone here who takes the trouble to write it out. Does such a thing exist? If so, can you provide the reference or even provide the text here. I'm running a very small, simple environment consisting of two ESXi hosts and Vsphere Standard edition. Thanks.

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  • Centos 5.5 install PearDB

    - by John Gardeniers
    Disclaimer: I use Linux for some jobs but I am not a Linux admin. I have a Centos 5.4 machine which performs some server duties and doubles as a web site development machine. PHP 5.3.3 was installed from RPM with the --without-pear option. I now wish to use PearDB but can't figure out how to install it. If I run yum install php-pear-db, it comes back with Error: Missing Dependency: php = 5.1.6-27.el5_5.3 is needed by package php-devel-5.1.6-27.el5_5.3.i386 (updates). The only RPM I've found that looks like it might be close currently has a dead link, so I can't even try that. What would be the best way to go about this? Is there a way to reinstall from the RPM and include pear? Can I install the dependency without breaking the current installation? Should I try to uninstall the original PHP and reinstall it from source, complete with pear? I thought this might have been an SU question but the FAQ over there suggests otherwise.

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  • Multiple SSL domains on the same IP address and same port?

    - by John
    This is a Canonical Question about Hosting multiple SSL websites on the same IP. I was under the impression that each SSL Certificate required it's own unique IP Address/Port combination. But the answer to a previous question I posted is at odds with this claim. Using information from that Question, I was able to get multiple SSL certificates to work on the same IP address and on port 443. I am very confused as to why this works given the assumption above and reinforced by others that each SSL domain website on the same server requires its own IP/Port. I am suspicious that I did something wrong. Can multiple SSL Certificates be used this way?

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  • Multiple desktops in Windows

    - by John Straka
    I'm running a program that uses WatiN to automate file uploads to different websites. I currently run it on a machine that I remote into via the standard Remote Desktop Connection in Windows - once I start an upload, I go ahead and continue using my local machine. Soon, I'll be needing to run it locally. The problem is that it requires focus (which is unavoidable due to WatiN utilizing SendKeys) and I of course don't want to render my machine useless while it runs. So, my question: Is there any way to emulate the multiple desktops/workspaces that have been in many Linux distros for some time? I tried VirtuaWin to no avail. Alternatively, is there a way to remote into a machine from itself? Or is there some other means of creating a separate session on the same machine that does not steal focus? Running Linux is not an option, and a VM would be overkill.

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  • Ubuntu synaptics touchpad is too sensitive

    - by Michael Diamant
    I recently switched from Windows to Linux (Linux Mint specifically) on my IBM T61 laptop. Since making the switch, my touchpad has been nearly unusable. When I place one finger on the touchpad, without moving it, the cursor bobs around in a small area as if I am making a number of small movements. I think the cursor is moving around because the sensitivity is too high - just rotating the tip of my finger in place moves the cursor over about one-third of the screen. My trackpad does not suffer from the same problem. I have lowered the sensitivity in the mouse settings to its minimum and I have tried to follow the advice from http://iruel430.blogspot.com/2010/06/lowering-mouse-sensitivity-in-ubuntu.html and also reduce laptop touch pad sensitivity in ubuntu. But, in both cases, my touchpad still has the same behavior. Perhaps there is an xinput setting I am overlooking? Is there a better driver I can use for my T61?

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  • Set one background to stretch across multi-monitor display?

    - by John Isaacks
    I have two monitors and my coworker has three. We were wondering if there was a way to set a single background image to stretch across all the monitors. Right now it's the same image but repeated, so it looks like the same image three times in a row. I would like it to be so that the three images/screens combine to show one image if that makes sense. If I can't set one image to stretch across the screens like that, is there a way to set a different background for each screen? Edit: I just wanted to clarify: I am not talking about one image stretching from his monitors to mine, just stretching across our own monitors.

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  • How to run Medisoft Patient Accounting Demo on Windows 7?

    - by John
    I installed Medisoft Patient Accounting Demo but every time I try to run it, I get this error: tblExclusiveNew: One of the Database property or the AdsConnection property must have a value. I click OK and then get this error: Exception AdsConnectionError in module MW.EXE at 001FA701. Must specify connection string before getting a server connection. The program then immediately exits. Then a get this error: Ar3import -An error has occurred dmIPCCommunication: No core product found I click close and then: Ar3import-An error has occurred An unspecified error has occurred, please call tech support Googling was no help. Even the Medisoft tech on the Medisoft forum thread I found was unable to fix it. Is this fixable?

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