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• Darik's Boot And Nuke - ERROR /dev/sda

  - by user1403844

  I'm trying to wipe the drive of an old company computer with DBAN so I can install Redhat Enterprise and learn Linux (it's a Dell Inspiron 1210, if that matters). I burnt DBAN to a CD and boot from that CD (running on an external USB CD drive). Whenever I try to run the utility--whether it's Autonuke, or any of manual wiping methods-- it spits on the errors: ERROR /dev/sdb ERROR /dev/sda From what I've read on some other forums, there are some issues with other drives or removable media interfering however I've disabled all other drives in bios, leaving just CD/DVD and the Hard Disk but still no luck. Any advice on how I can reconcile these errors and wipe the disk?

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• Windows scheduler - Tasks not running when user not logged in

  - by Glinkot

  I have Windows Server 2003, with schedules setup via Remote Desktop under one account. That account appears in the 'creator' column too. I have 'Run only if logged on' unticked. When I have logged in under that account and then 'disconnected' leaving the the session alive, the schedule runs. But every time the server is rebooted, the task again fails to run until I again log in and disconnect. Any KB fixes I've missed or issues I've overlooked? Normally I only discover the issue when a user tells me the schedule has stopped running so it's a real reliability issue. I'd also be happy with an answer suggesting an alternative scheduler with higher reliability. Thanks

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• IE8 complains about SSL name mistmatch

  - by Cerin

  When visiting an SSL protected website, IE8 complains about the certificate name not matching the website address, but gives no information about the certificate or what name it's looking for. Visiting the same site in IE9 (or IE9 in "IE8 mode"), Firefox, Chrome, and Safari shows no problems, and that the certificate matches the address. Certificate checkers indicate everything is installed and configured correctly. Does anyone know what might be causing this? Is this a known issue or bug in IE8? I've been Googling for similar issues, but due to the uncertainty as to what's actually going on, I'm not sure what to search for. My problem reads similar to this question. However, my server is running Apache2.

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• IIS7 response size thresholds

  - by DanielM

  I have a customer who is attempting video playback via HTTP progressive download of very large files ( 1 GB). There is no problem once a file is cached at the edge via my CDN, but hits to my origin (first hits prior to edge-cache population) experience stalling and loss of sync between audio and video about an hour and a half into playback. This occurs pretty reliably at that point, suggesting that some threshold somehwere is getting hit. Are there IIS configuration knobs governing HTTP Response size? Other data points: I am unable to replicate this problem. I am looking at client bandwidth and last mile issues. I am looking at possible encoding recipe dependencies. But this problem never came up when we were using a "push" cache configuration (CDN-hosted origin), so something funky serverside at my origin seems like a likely culprit. Thanks ...

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• tradeoffs of iSCSI vs. AFP when using Time Machine with a NAS?

  - by Ajit George

  I'm setting up a home NAS device (Synology DS409) that I'm planning to use for Time Machine backups (amongst other things). What are the tradeoffs between using iSCSI or AFP to mount the backup volume? The Synology wiki suggests that iSCSI is better if the Mac will be frequently disconnected from the network or sleeping, from the point of view of the volume automatically remounting. What about filesystem consistency? Given that unplugging a USB drive without properly unmounting it often requires the Time Machine volume to be repaired, would iSCSI have the same issues?

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• How long do managed gigabit ethernet switches take to boot up?

  - by Warren P

  One critical drawback that I have found in researching managed-switches, and one that I have some past experience with is that anything with "lots" of firmware is going to have lots of issues associated with that firmware. We are in the middle of researching rackmount gigabit switches (48 port). It looks like for 48 ports, our only choice is managed switches (Dell, Cisco/Linksys,HP, etc). What I want to know, that I can not find out much about is the boot-time for various managed switches. If you own one, can you please answer with the model number, and the cold boot time in seconds. I have read online that Linksys (now Cisco) SRW series sometimes take almost 5 minutes before they are fully booted up, and that is an unacceptable cost for us. I particularly want to know about Dell PowerConnect managed switch bootup time (model 3548 and 5448), and would like to confirm the 5-minute boot time on the SRW2048 or similar model, and any HP ProCurve boot up times. The composite of all those figures ought to form an interesting overall performance picture.

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• Parallel installation of Office 2003 and Outlook 2010

  - by Marcel Janus

  we have a customer who is not willing to move from Office 2003 to Office 2010 but he now wants to use Office 365. As you know is Office 365 not compatible with Outlook 2003. Now he asked me if it's possible to buy and install Outlook 2010 and keep the rest as it is. I only found some guides for parallel installation of Office 2007 and Office 2010. So my question is if this solution will work. Or are there any issues known?

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• Firewalling a Cisco ASA Split tunnel

  - by dunxd

  I have a Cisco ASA 5510 at head office, and Cisco ASA 5505 in remote offices. The remote offices are connected over a split tunnelled VPN - the ASA 5505s use "Easy VPN" Client type VPN in Network Extension Mode (NEM). I'd like to set firewall rules for the non-tunnelled traffic only. Traffic over the VPN to head office should not have any firewall rules applied. I might want to apply different firewall rules to different remote offices. All the documentation I have been able to find assumes the Client VPN is a software endpoint, and all the configuration is done at the 5510. When using a Cisco 5505 as the VPN client, is it possible to configure any firewalling at the Client end, or does it all have to come from the 5510? Are there any other issues to look out for when split-tunnelling a VPN by this method?

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• How can I keep websites from knowing where I live?

  - by D Connors

  This questions is related to issues and practicality, not security. I live in Brazil and, apparently, every single website I visit knows about it. Usually that's ok, but there are quite a few sites that don't make use of that information adequately. For instance: Bing keeps thinking that brazilian pages are way more relevant to me than american ones (which they're not). Google.com always redirects me to google.com.br. Microsoft automatically sends me to horribly translated support pages in portuguese (which would just be easier to read in english). These are just a few examples. Usually it's stuff I can live with (or work around), but some of them are just plain irritating. I have geolocation disabled in firefox, so I guess they're either getting this information from my IP or from windows itself (which I bought here). Is there a way to avoid this? Either tell them nothing or make them think I live somewhere else? Thanks

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• iptables NAT configuration

  - by Sarp Kaya

  Hello I am experiencing some issues with my iptables. Here's what I want to do: A(eth0)--------(eth0)B(eth2)---------------(eth2)C Brackets are interface names A,B and C are hosts. Now I would like to forward port number 80 of host C so that It would be accessed via host A. host A is 192.168.1.254 host C is 192.168.3.2 I intentionally ACCEPTed all FILTER chain options as the default policy because I wanted to make sure that NAT is working properly first. I enabled ip_forward. So here's what I have done: sudo iptables -A PREROUTING -t nat -p tcp - d 192.168.1.254 -j DNAT --to 192.168.3.2 However it is not working. What am I missing here?

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• tradeoffs of iSCSI vs. AFP when using Time Machine with a NAS?

  - by ajit.george

  I'm setting up a home NAS device (Synology DS409) that I'm planning to use for Time Machine backups (amongst other things). What are the tradeoffs between using iSCSI or AFP to mount the backup volume? The Synology wiki suggests that iSCSI is better if the Mac will be frequently disconnected from the network or sleeping, from the point of view of the volume automatically remounting. What about filesystem consistency? Given that unplugging a USB drive without properly unmounting it often requires the Time Machine volume to be repaired, would iSCSI have the same issues? Thanks in advance.

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• Monitor sleep in Windows XP does not work. Is there an add on to force it?

  - by bert

  I have an EEE box with XP Home and a DVI connected TFT, and it does not sleep the monitor. It only starts working after I go to the energy control panel and turn it off and on again. Then the timed sleep works for the current session of computer use. After a shut down and boot next day, sleep does not work again (it is still set in the preferences however). What can hold the sleep function from working? Are there issues with Skype or MSN? Is there a utility to be less critic to processes interrupting sleep and offer a more reliable monitor sleep function for XP?

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• How to store 250TB of data and develop a backup/recovery plan?

  - by luccio

  I'm really new to this topic, so big apology for stupid questions. I have a school project and I want to know how to store 250TB of data with life-cycle for 18 months. It means every record is stored for 18 months and after this period of time can be deleted. There are 2 issues: store data backup data Due to amount of data I will probably need to combine data tapes and hard drives. I'd like to have "fast" access to 3 month old data, so ~42TB on disk. I really don't know what RAID should I use, or is here any better solution than combining disk and data tapes? Thanks for any advice, article, anything. I'm getting lost.

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• How can I port forward with an airport extreme and a NAT enabled modem?

  - by Jon

  I run an Actiontec HD701D modem with NAT to an Airport extreme base station to laptop etc. As you might expect I get double NAT issues. I tried a lot of different things to forward a port, but no luck. Currently the airport is in bridge mode letting the modem handle the NAT, but still can't forward the port. Also to note: firewall is off on the router, firewall is set to allow the application in OSX 10.6.3 and I did forward the port in the router. No luck.

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• Reliable procedure/tool for removing print drivers in Windows 7 (domain environment)

  - by ultrasawblade

  One of the troubleshooting steps in resolving printer-related issues with any version of Windows is to remove installed print drivers and then reinstall the drivers. This is a domain environment and drivers are pulled from a print server. I've had occasion to need to do this on a user's system running Windows 7 Enterprise 64-bit. These procedures don't work: Removing the printer from Devices and Printers (doesn't remove driver obviously) Doing the above, going into Server Properties, and attempting to remove the driver (fails with a "driver in use" error) Opening an empty mmc, adding the Print Management snap-in, and attempting to do the above. Doing sc stop spooler and sc start spooler before doing both of the above Now I know it's possible to remove drivers with the spooler service stopped and then going into the spool directory, as well as deleting registry entries. I'm asking if a tool exists to do this where I can just select the driver in question and it be removed.

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• Could some one please explain the various proxy configuration scenarios?

  - by RP.

  I am working on a client application in C# which does a various kinds of communication with a server( eg: uploads, downloads etc ). We have a legacy system which does the same functionality and we get in to proxy configuration related issues frequently.It uses the settings from internet explorer network settings. Most of the time these are due to specific proxy configuration( Eg: Proxy auto-config etc ). I am trying to understand the various scenarios used in corporate environments for proxy configurations. Could some one please explain the various proxy configuration scenarios?

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• Windows 7, files reappear after deletion.

  - by HeavyWave

  I'm trying to delete some files from a folder. I've taken ownership of the files and the folder. When I delete these files Windows doesn't report any errors and deletes them. BUT, after I press F5 these files reappear again. There are no messages whatsoever, they are just undeletable. I know login off will help, but how do I fix it without going through the pain of closing everything down? P.S. Files disappear from the folder after aprox. 5 minutes. Update. Turns out my version of Windows did not properly upgrade from test version, so it had some weird disk drive issues.

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• Multiple SSIDs better or worse

  - by swiss196

  I'm just setting up a network in a student house with 10 rooms, 3 floors. Configuration at the moment is as follows: Virgin Media 100mb Cable Virgin SuperHub on ground floor broadcasting on SSID1 Second AP(Edimax) wired on middle floor broadcasting on SSID2 These two networks server all 3 floors fairly well but I was wondering whether it would be better to setup an individual SSID for each floor (both the routers allow me to configure up to 3 ssids on each!). Would this help with speed issues, i.e if someone on the top floor is downloading/streaming etc, this wouldn't affect someone on the middle floor on a different SSID Or, will it have no effect? Thanks, Dave

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• Seasgate GoFlex NAS + Horrible Speed = Bad Experience

  - by Jon H

  I am having issues with transfer speeds from my desktop PC to my NAS. I have my NAS hooked up to a Gigabit Gateway as well as my Desktop with Cat 5e. I see up to 4.0 MB/Second Transfer Rates, the normal is about 2.5 MB/Seconds. There is 3 Partitions on my NAS, Public, Private, Backup. When I transfer from Private to Public I see the speeds above. If its under the same partition almost instant. I was wondering if the speeds I am seeing is in due to my Computer or the NAS. I was looking into building my own Media Server in due to these horrible speeds. Is their anything I can do in the mean time to speed this up? Motherboard = M3970AM-HP (Angelica) Processor = AMD FX 6100 Ram = 10GB PC3-10600 MB/sec Hard Drive (1) = 1.5TB SATA 3.0GB 5400RPM Hard Drive (2) = 120GB SATA SSD NAS = Seagate 3TB Go Flex Home Connection (1) = 1000 Base T Connection (2) = Wireless N

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• Wordpress Automatic Updating/Installing Plugins Permissions

  - by karmic

  I am using the latest Wordpress and I have always had issues with the automatic updater. For the files in the wordpress directory, i set them to permission 770, and add the webserver user 'www-data' as the group owner. I use lighttpd. However, the automatic updating plugins or installing plugins does not work. It works if I chmod 777 the files or if I set the actual owner to the web server as well. What are the best permission settings for security while still allowing the updating feature to work properly in wordress? Also, by 'not work' i mean, it will go to the screen that asks me for FTP credentials when I try to update.

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• My website directories downloads instead of actually opening up from browser

  - by numerical25

  I added some screencast to show what I am having issues with http://screencast.com/t/212t3ANINqk http://screencast.com/t/bR44U1wkvNZl http://screencast.com/t/iDS7APYYsa but the page downloads my subdirectories instead of opening them up and displaying the index file of that page Here is the situation. I am trying to get my web service up using mac ports and I am just trying to configure all the files. I am using php, apache, etc. the page goes to the localhost root but anything beyond that. it can not find. edit Ive tried to add the following to httpd.conf within the <IfModule mime_module> but no hope AddType application/x-httpd-php .php AddType application/x-httpd-php .phtml AddType application/x-httpd-php .php3 AddType application/x-httpd-php .php4 AddType application/x-httpd-php .html AddType application/x-httpd-php-source .phps

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• How to get access to console to reset Cisco 3750?

  - by genehack

  I acquired two Cisco 3750 switches from another part of my organization. I was able to complete the standard password/config reset procedure on one without any issues -- boot it, put it into express config mode, telnet in, reset the passwords, etc. The second one doesn't ever boot to the point where it displays anything on the console. When power cycled, the 'SYST' light flashes green a few times, then comes on a solid green and stays lit. None of the other lights ever flash or light up. Holding down the 'MODE' button for up to 30 seconds produces no noticeable effects. Nothing ever comes out on the console. Since I was able to configure the first one without any problems, I know my connectinon is good -- console port configured right, good cable, etc. Is this just a hardware problem with the switch? Is there any way I can recover from this and get the switch back into a state where I can configure it?

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• Ubuntu Server login not recognizing the keyboard after entering username.

  - by Jeff Malewski

  I'm having similar issues with logging into ubuntu server. chief problem is that once I enter my user name & hit enter, I can't enter anything ffor my password - it won't accept any keystrokes until I press Ctrl+any key. Once I've pressed Ctrl+ any key, I'm able to type again, but have never been able to enter any more than 3 characters before the 60 sec time limit. This problem is present on fresh installs of both 10.04 & 9.10. Part of the problem is lkely to be my antique pc which is an old Emachines Trigems I850 based mbd and an equally ancient Nvidia 4x AGP video card. Initially I was going to install Ubuntu 10.10, but with ORCA running with both screen reader and full screen magnification crashed the system & smoked a stick of Rambus memory. Is there any fix to this problem? Jeff

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• automating sql express backup via VSS backup

  - by Ornus

  I need to set up on my server automated daily SQL db backups (sql express, so no maintenance plans). To keep things simple I'm gonna use a backup solution (JungleDisk) that uses VSS to back up the DB file. SQL fully supports VSS and on requests freezes DB I/O, so I understand I'm taking snapshots. JungleDisk supports doing differential back up and compression, so it simplifies things and keeps the cost/bandwidth down. Is it enough to just backup up db file (mdf). Do I need to back up transaction log (ldf) file as well? I'm ok with losing a day's worth of work (since the last backup). if I go this route, what's the best way to restore the database? are there any issues with this approach I'm not aware of?

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• Effects of enabling DVFS in a CPU

  - by Nrew

  I came up with this energy regulating software called Granola while reading at Ghacks.net I downloaded and installed the software but you need to enable the DVFS function in the CPU. I booted up and tried to enable DVFS in the CPU Configuration in my Asus motherboard(Desktop). But in the description it said that enabling the feature might raise some compatibility issues with the power supply. And I'm afraid that I might ruin the CPU if I do this. Any suggestions, any one here who has tried this before? I don't know who the manufacturer of my power supply is. Would you recommend some software that can determine every possible info about the power supply.

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