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• USB drive errors after airport scan

  - by bobobobo

  Well, I just got a new PNY usb drive and it passed through an airport scanner yesterday. For some reason, I wrote to it and then tried to read from it today, and it gave me a corrupted error! chkdsk reports errors like: Bad links in lost chain at cluster 1179 corrected. Lost chain cross-linked at cluster 1200. Orphan truncated. Lost chain cross-linked at cluster 1228. Orphan truncated. Lost chain cross-linked at cluster 1236. Orphan truncated. Lost chain cross-linked at cluster 1237. Orphan truncated. Lost chain cross-linked at cluster 1244. Orphan truncated. Lost chain cross-linked at cluster 1250. Orphan truncated. Lost chain cross-linked at cluster 1266. Orphan truncated. Lost chain cross-linked at cluster 1278. Orphan truncated. etc. What is this from? Could it possibly be from the airport scanner, or is it likely a defective USB chip? How can I check the chip to see if I should just return/throw it away or continue to use it?

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• Mailgun Is Not Detecting My New MX Records

  - by Tyler Crompton

  When I issue a DiG command to verify my MX records, I get the following output: $ dig example.com MX ; <<>> DiG 9.9.5-3-Ubuntu <<>> example.com MX ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 47700 ;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 5, ADDITIONAL: 5 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;example.com. IN MX ;; ANSWER SECTION: example.com. 85468 IN MX 10 mxa.mailgun.org. example.com. 85468 IN MX 10 mxb.mailgun.org. ;; REMAINDER OF OUTPUT REMOVED FOR BREVITY However, when I click "Check DNS Records Now" on Mailgun, it verifies the changes to the TXT and CNAME records but says that my MX records have not been changed. Type | Priority | Enter This Value | Current Value -----+----------+------------------+-------------------- MX | 10 | mxa.mailgun.org | 10 mail.example.com MX | 10 | mxb.mailgun.org | 10 mail.example.com I updated these records three to fours ago. I know it said to wait up to twenty-four to forty-eight hours. But I feel that if it detected the other DNS changes, then it should detect the MX record changes. Am I being impatient or is this a legitimate concern? What do you suggest I do? Note: I'd create a Mailgun tag for this; I feel that it'd be appropriate, but I don't have enough reputation to do so.

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• Lighttpd mod_accesslog not logging fastcgi requests

  - by zepatou

  I have recently installed a lighttpd for serving a python script via mod_fastcgi. Everything works fine except that I don't get the requests handled by mod_fastcgi logged in the access.log file (requests on port 80 are logged though). My lighttpd version is 1.4.28 on a Debian 6.0. I used the same working configuration a Ubuntu server 10.04 with lighttpd 1.4.26 and it worked. Here is my config lighttpd.conf server.modules = ( "mod_access", "mod_alias", "mod_accesslog", "mod_compress", ) server.document-root = "/var/www/" server.upload-dirs = ( "/var/cache/lighttpd/uploads" ) server.errorlog = "/home/log/lighttpd/error.log" index-file.names = ( "index.php", "index.html", "index.htm", "default.htm", "index.lighttpd.html" ) accesslog.filename = "/home/log/lighttpd/access.log" url.access-deny = ( "~", ".inc" ) static-file.exclude-extensions = ( ".php", ".pl", ".fcgi" ) server.pid-file = "/var/run/lighttpd.pid" include_shell "/usr/share/lighttpd/create-mime.assign.pl" include_shell "/usr/share/lighttpd/include-conf-enabled.pl" conf-enabled/10-fastcgi.conf server.modules += ( "mod_fastcgi" ) fastcgi.server = ( "/" => ( ( "min-procs" => 1, "check-local" => "disable", "host" => "127.0.0.1", # local "port" => 3000 ), ) ) Any idea ?

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• What is the proper way of debugging a slow Windows installation?

  - by Niklas

  You know the drill - you've been asked to check why you cousin's computer is running slow. I was there yesterday. Being a Mac user since 2007 I haven't really dug deep in Windows internals in the past five years. Googling for answers reveals many, many different answers: broken registry, spyware, antivirus program, fragmented disk, turning of visual effects etc. In this particular case I was asked to look at a two year old HP laptop with Vista. Windows was running incredibly slow and even opening up a new explorer window took almost a minute. I ended up doing everything of the above: running cc cleaner, defragmenting the disk, turning off visual effects, turning off norton and a bunch of other things people believe have an impact on Windows performance. Now I'd like to understand this in depth. Is there a proper, "scientific" if you so will, way of debugging and understanding where the problem with a slow running Windows installation lies? (In my particular case this concerned Windows Vista but let's try to create general guide for XP and Windows 7 too). To me, it seems wrong to just run a bunch of different tools without understanding the underlying cause of the error.

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• Permissions in OS X for iTunes library with multiple users

  - by John

  I currently have a lot of music on an external drive and my iTunes set up from there. However, periodically, when the external drive isn't connected, iTunes will default back to the library location of my home directory user path. I don't want to mess with an external drive, as my Mac's HD is large enough to house the music collection. However, I have 4 family members – all with their own logins – using this same gob of music. I don't want four copies of the library, only one with all libraries referencing it. So, what I want to do is: Move all music files to a shared directory at /Macintosh HD/users/music. I created this directory and adjusted permissions, so all four users can read and write to this directory. Get all four accounts to reference this library instead of the external or local home locations I am hoping I can just check the box to keep library organized in my account, which is the admin and let iTunes move it all. Then delete current libraries for each account and re-add from the new shared location. Will the iTunes organization process cause permissions issues either by setting permissions to all the files access to my account only or write permissions or any other 'gotcha'? I am having a hard time coming up with a smooth solution that won't break everything and cause me to have mega duplicates or access issues. I would prefer not to do any XML library file editing if possible. Am I dreaming?

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• Patch management on multiple systems

  - by Pierre

  I'm in charge of auditing the security configuration of an important farm of Unix servers. So far, I came up with a way to assess the basic configuration but not the installed updates. The very problem here is that I just can't trust the package management tools on those machine. Indeed some of them did not sync with the repository for a long time (So I can't do a "yum check-updates" on Redhat for example). Some of those servers are not even connected to the internet and use an company repository. Another problem is that I have multiple target systems: AIX, Debian, Centos/Redhat, etc... So the version could be different (AIX) and the tools available will be different. And, last but not least, I can't install anything on the target system. So I need to use a script to retrieve the information and either: process it directly or save the information to be able to process it later on a server (Which may happen to run a different distribution than the one on which the information have been retrieved). The best ideas I could come up with were: either retrieve the list of installed packages on the machine (dpkg -l for example on debian) and process it on a dedicated server (Directly parsing the "Packages" file of debian repositories). Still, the problem remains the same for AIX and Redhat... or use Nessus' scripts to assess vulnerability on the installed packages, but I find this a bit dirty. Does anyone know any better/efficient way of doing this ? P.S: I already took time to review some answers to similar problems. Unfortunately Chef, puppet, ... don't meet the requirements I have to meet. Edit: Long story short. I need to have the list of missing updates on a Unix system just like MBSA on Windows. I'm not authorized to install anything on this system as it's not mine. All I have are scripts languages. Thanks.

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• Intermittently uncommunicative subnets

  - by mhd

  Last week proved me a veritable Cassandra: I've always said that it's a bad idea to have only one firewall/router, without a backup or failover. And thus our Cisco PIX went haywire, refusing to route properly. And of course, the only one available here on short notice is me, and while I'm quite grounded in Linux, I'm really a developer not a sysadmin (the fact that this hit me on sysadmin appreciation day is a bit ironic). Anyway, this weekend I tried to hack up a temporary solution: I used an old server with enough NICs (two built-in, four on a card) to serve as a gateway and firewall. Due to some problems with the raid controller, I got only two router distros running, and between Untangle and Ebox I decided for the latter. Now everything is quite okay. I've got all the different subnets we've got here (all with separate switches) talking to each other and even to the internet (Cisco 2800 router, T1 lines). But from time to time (20-60 minute intervals), I get a total routing failure. Our main, office subnet can't talk to our server subnet and can't connect to the internet. This is not the end of a gradual slowdown, either everything's working perfectly or I get a total lack of communication for about two minutes each time. Now I'm a bit at wits end what to check. At least with the default EBox setup, nothing in /var/log shows anything weird and it doesn't exactly have lots of built-in monitoring tools. So I'm hoping someone here could give me some pointers about what to look out for. I did change the ethernet cable from the office switch to the firewall, with no results. I might change switches, although within the switch it seems to work ok enough. Edit: I'm not sure whether this is the sole cause of the problem, but after I noticed a few DHCP entries just before the last drop of connectivity, I tried to reproduce that. And alas, whenever I renew a DHCP connection, I can't access other subnets anymore. Running ISC DHCPD 3.0.6.

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• Issue with exim4u

  - by bretterer

  I am using exim4u for a mail server on debian. Everything has been working fine until recently. I have not done anything to the server from the time it was working until now. I have a domain set up and is receiving and sending mail correctly. When i put a forwarding address in to a gmail address, I can still receive and send email from my webmail client but it never makes it to gmail. I have check logs and this is what I have found 2012-04-01 18:47:04 1SEPns-0000aN-Br DKIM: d=gmail.com s=20120113 c=relaxed/relaxed a=rsa-sha256 [verification succeeded] 2012-04-01 18:47:10 1SEPns-0000aN-Br H=mail-bk0-f43.google.com [209.85.214.43] Warning: X-Spam_score: -0.3 2012-04-01 18:47:10 1SEPns-0000aN-Br <= [email protected] H=mail-bk0-f43.google.com [209.85.214.43] P=esmtps X=TLS1.0:RSA_ARCFOUR_MD5:16 S=3424 id=CAGZkSKbYc7SJR+yXTgG8ubQvx4PNb0CwHG1DDKGeZ-qFiA$ 2012-04-01 18:47:11 1SEPns-0000aN-Br => /home/mail/mydomain.com/support/Maildir ([email protected]) <[email protected]> R=virtual_domains T=virtual_delivery 2012-04-01 18:47:12 1SEPns-0000aN-Br => [email protected] <[email protected]> R=dnslookup T=remote_smtp H=gmail-smtp-in.l.google.com [209.85.225.27] X=TLS1.0:RSA_ARCFOUR_SHA1:16 2012-04-01 18:47:12 1SEPns-0000aN-Br Completed I am not a mail server person so im not sure what everything here is saying. It appears to me that it is successfully sending mail to gmail though. I have checked my spam folder as well and nothing there either. If it would help to have some more information from my server, let me know because Im not sure what would be of help here.

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• Touchpad does not respond when I am holding key on the keyboard

  - by Tadeck

  I am experiencing strange problem with using my touchpad and keyboard simultaneously under Windows 7. I have HP tx2550ew (convertible tablet), and when I hold some key under Windows 7 (eg. space, a, s etc.), the touchpad seems to be blocking. I spotted this while playing Counter Strike. I am not playing much games, and I haven't been playing CS since January, so I am not sure when it started behaving like that. I have tested it also outside the game - when I hold space (eg. when on some web page and entering text into input field) or some letter key, the cursor is not able to move. The problem seems to not be occuring when I hold Shift, Ctrl nor Alt. Did any of you experience similar problem? Do you know what may have caused this? Is there any way I could check what is wrong with my laptop? I have been looking for a solution, but it seems I haven't been looking in right places. This is why I ask question here. Ps. I am unable to test whether this is touchpad-specific, because I have no mouse at my disposal at the moment (got used to touchpad so much I even find it more efficient and haven't been using a mouse with my laptop for months).

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• Copying windows home server backup offsite

  - by Simon

  What ways are there to copy a windows home server backup to an offsite location? I'm talking specifically (and only) about the automated backup of my entire machine, and not the shared network folders. I am 90% working away from home on my laptop which has a 640GB drive so the shared folders are essentially useless to me. I backup every night, but if my house burns down or broken into the I'm in serious serious trouble ! I'm really looking for some alternative way to back up my entire machine - which much not interfere with the reliability or speed by which my WHS backs up my laptop every night. Either a way to 'export' a complete machine backup from the server, or recommendations on non-conflicting software I can backup to a 1TB drive at work are what I'm looking for. Note: I believe that WHS uses its own completely proprietary backup and doesn't use things like any 'backup bit' or 'archive bit'. I just dont want to install some other backup software that will conflict. PS I'm now running Windows 7 and just realized that I should probably check out the backup functionality it gives me. I assume that won't conflict right! Edit: Thanks for the hosted solutions. I'd also appreciate ways to backup to an 'offsite' location that I control - like my office vs. my home. The hosted solutions I think will be too slow or expensive for my needs.

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• Windows 7 DVD doesn't boot up, neither does USB. :'(

  - by Manan Shah

  My problem is that i'm not able to install windows 7. Been trying to install this since past 1 week. The methods i've tried are: I have a windows 7 bootable DVD which doesnt boot up. (I've set BIOS to boot from DVD ROM first but it just won't boot from the DVD). Tried to install Windows 7 from the same DVD to a friend's PC and it worked. So the DVD has no issues. I tried to run 'Setup.exe' from within the DVD. The two options pop-up 'Check compatibility' and 'Install now'. On clicking install now, after sometime, an error is encountered with the message 'Windows was unable to create a required installation folder' error code:0x8007000D. I am running Windows XP Professional and there's only one user on the PC which is the Admin, so i do not know why is the setup not getting permissions. I've also uninstalled my antivirus, CD burning software, disabled firewall and disconnected all other devices, but its still the same. I tried to install it from a USB device by making it bootable but that too doesnt work. (Yes the mobo supports booting from the USB). The problem is that XP does not recognize a 'USB' device on boot. Rather it shows this USB stick as a removable 'Hard Drive'. Furthermore, i changed the order of Hard Drive boot to boot from this removable Hard Drive first, it still boots my existing OS. Is there anything else that can be done? Any help would be greatly appreciated. :) Please ask if any other information is required, this post is becomimg increasingly long to add any other details. PS: I want to dual boot windows 7 with my existing XP, but that would be after i manage to run the windows 7 setup in the first place. PPS: Please bare with any 'not-so-technical' terms, i am a beginner with this. Again, thank you for taking the time and trying to help, really appreciate it. :)

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• Configuring a MySQL 5.1 Instance on Windows 7 Professional x64 Fails

  - by Thomas Owens

  I'm trying to set up my laptops to function as mobile development environments. Installing the software on my Linux machine and getting it configured was fairly straightforward, however I'm having trouble getting MySQL 5.1 Server installed and configured on Windows 7 Professional 64-bit. I'm currently using the Windows MSI Installer for the complete MySQL 5.1 system (as opposed to the Essentials installer also available). I've tried to install using both the 32-bit and 64-bit versions of MySQL 5.1 - the same events occur in both. I've installed both the Server Instance Configuration Wizard and Workbench and everything appears to be installed just fine. When I open the Instance Configuration Wizard, I select Detailed Configuration. On the next screen, I select Development Environment, then Multifunctional Database on the next screen. I leave the InnoDB settings unchanged. I select Manual Setting with 5 concurrent connections. I enable TCP/IP Networking on Port 3306 and Enable Strict Mode. I select the Standard Character Set. I check the boxes for Install as a Windows Service (and provide the name "MySQL") and Include the Bin Directory in Windows PATH. On the next screen, I set my root user name and password. I do not enable root access from remote machines and I also do not create an anonymous account. On the final screen of the wizard, when I click "Execute", the first two tasks (Prepare Configuration and Write Configuration File) complete. However, when it reaches Start Service, the wizard hangs and becomes unresponsive ("Not Responding" appears in the title bar and Task Manager). I would really like to be able to use both my Windows and Linux laptops as full-blown mobile development environments, but I can't do that without being able to run MySQL. Has anyone encountered this problem before? What options do I have to correct it?

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• Are SATA II and SATA 3.0 Gbps compatible?

  - by Johnny Maelstrom

  I am trying to check that if I buy a new internal HDD it will work in the NAS I am buying. Currently I'm confused about naming schemes and once that is resolved whether there is compatibility. I will gladly author this question to be more general if there is not already an article helping with the confusion of SATA naming and standards. I see similar, but not identical questions and will accept this as a duplicate if thought as such. The specifications on the eCommerce site for the NAS says, "Controller Interface Type Serial ATA-150", the product home page for the manufacturer says, "Compatible with SATA and SATA II HDD". The specifications on the eCommerce site for the hard drives say, "Interface Type Serial ATA-300", the product home page for the manufacturer says, "Interface SATA 3.0 Gbps" Wikipedia says many things about different naming conventions, the closest being, "SATA II 3.0 Gbit/s, which was colloquially referred to as "SATA 3G" [bps] or "SATA 300" [MB/s] since 1.5 Gbit/s SATA I and 1.5 Gbit/s SATA II were referred to as both "SATA 1.5G" [b/s] or "SATA 150" [MB/s]). Therefore, they will operate with negligible differences between them." Are SATA II and SATA 3.0 Gbps the same? I feel I'm tantalisingly close to getting a definitive answer here before I purchase, but really want to clear up these naming schemes.

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• "iostat" command different in two equal machines

  - by Oz.

  We have several machines on Amazon (ec2) of the type c1.xlarge with 8 cpus, running the Amazon AMI. Details on the machine: 7 GB of memory 20 EC2 Compute Units (8 virtual cores with 2.5 EC2 Compute Units each) 1690 GB of instance storage 64-bit platform I/O Performance: High API name: c1.xlarge One out of the several machines is showing a high load average, since we have run the last yum upgrade a couple of weeks a go. We did not yet update the other machines, and everything looks normal on them. The strange thing is that the top command not showing any hint for the cause of the load. CPUs are - 4.8%us, 1.1%sy, 0.0%ni, 94.1%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st. Mem is about 1.5GB free. Any idea what could it be, or where else can we check? iostat command on the proper machine: avg-cpu: %user %nice %system %iowait %steal %idle 8.97 0.03 4.46 0.19 0.14 86.23 Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn xvdap1 1.60 0.69 55.38 587620 47254184 xvdfp2 2.64 1.10 61.04 934786 52091056 xvdfp4 0.86 0.19 41.72 163866 35601920 xvdfp1 4.37 36.59 73.89 31220810 63051504 xvdfp3 8.03 7.08 94.63 6045402 80749184 iostat command on problematic machine: avg-cpu: %user %nice %system %iowait %steal %idle 9.29 0.04 5.55 0.26 0.11 84.74 Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn xvdap1 2.13 3.34 68.85 246244 5077888 xvdfp1 7.60 74.31 104.88 5480362 7734840 xvdfp3 13.22 73.67 125.00 5433386 9218600 xvdfp4 1.11 0.76 65.08 55762 4799248 xvdfp2 4.16 3.31 99.17 243818 7313264 Many thanks for the help.

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• Disk usage on IIS, PHP5, performance problems.

  - by Jacob84

  Hi everybody, I'm quite worried with a performance problem that I'm facing in one of our production servers. I'm working for a hosting company, so you can imagine how heterogeneous the applications runnning here are. All started with a call of a client complaining about the speed loading a Joomla. The setup is IIS6 (Windows 2003) with PHP5 and FAST CGI wich normally works pretty well. I've tested the loading time and indeed, he was right. 7 or 8 seconds to load, when usually this can be accomplished in 2. Seeing this results, I started to check first CPU and RAM. Everithing normal, 2GB of RAM free, 3%-8% of CPU activity. That's what I call a relaxed server ;). Unfortunately, digging a little deeper I've found the 'PhysicalDisk' counters quite high (above 10), specially the read queues. I've used Process Explorer to see wich of those processes has the higher deltas, but everything seemed normal. As the problem is specially related to PHP pages, I've checked specific IIS counters, as Actual connections, Number of CGI requeriments and Number of ISAPI requeriments. CGI -> 3 to 7 ISAPI -> 5 to 9 Connections-> 90 to 120 (wich appears at the top of the graph) More than a solution (I know this is hard to find), I would like to know if you have an specifical methodology to face this kind of problems. Thanks a lot, as always.

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• No Microsoft Security Essentials for Windows 8. So, how to access similar Defender features/settings?

  - by Chris W. Rea

  I just installed Windows 8 Pro. One of the first things I went to do is install Microsoft Security Essentials, thinking I still needed add-on security software, but I've learned here that it isn't required for Windows 8. Witness: Got Windows 8 or Windows RT? Windows Defender for Windows 8 and Windows RT provides the same level of protection against malware as Microsoft Security Essentials. You can't use Microsoft Security Essentials with Windows 8, but you don't need to — Windows Defender is already included and ready to go. [...] All well and good. However, on Windows 7, once you installed Microsoft Security Essentials, you got a tray icon, and from there you could access the features of MSE, such as perform custom scans, turn off real-time protection (temporarily, of course), check for updates, etc. However, Defender on Windows 8 doesn't display a tray icon – and yes, I've already made sure I'm displaying all icons in the notification area. So, how to access the similar specific features of Windows Defender on Windows 8?

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• Ubuntu 12.10, Unity, AMD 12.11 beta drivers, AMD APP SDK 2.7 and OpenCL detection of multiple gpus

  - by junkie

  I'm using Ubuntu 12.10, AMD 12.11 beta drivers, AMD APP SDK 2.7 and OpenCL. I have three amd radeon 7990s plugged in each of which are a dual 7970 so I have six gpus altogether. I plan to go up to eight in a few days. Windows couldn't use even 4 but linux works fine with 6 so far. The strange thing is that the six gpus are only detected by OpenCL in unity (the ubuntu default window manager). If I switch to e17, blackbox or fluxbox or anything else for that matter OpenCL only detects one. I'm using a simple OpenCL program to list all devices to check. I've also checked the output of aticonfig --list-adapters, fglxinfo and clinfo. The first two always show six in all window managers wheras clinfo shows 6 in unity but 1 gpu in all other WMs. I'm also using an X config generated by aticonfig --initial -f --adapter=all. I'm also only using one monitor. I've also checked using lsmod that the fglrx module is loaded in all WMs. So I have two questions. Why does OpenCL see six gpus only in unity? How can I enable six gpus on other lightweight WMs? Basically I'm getting at what determines how many gpus the OpenCL runtime sees? Thanks.

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• S.M.A.R.T. broken sectors

  - by Jeffrey Vandenborne

  Recently I received my hard drive (LaCie) that I've sent away for warranty, my disk failed, and I used Palimpsest Disk utility to check if anything was wrong in the S.M.A.R.T Status. And it said that there were a few broken sectors. So the next day, I went to the store and told the story. 4 weeks later I actually got my drive back. The first thing I did was plugging it in and starting the disk utility, and weirdly it showed me pretty much the exact same things, even the values of most tests were the same as they were before when my drive broke. The serial number is different though, but it does show a very peculiar value. Now I'm wondering, I'm almost sure it's the exact same drive and it still says I've got broken sectors, does it just say that because it has been cached in the drive somewhere while LaCie DID actually fix it? Or should I run the extended self test (which seems to take hours) first? Also I've tried the smartctl command tool, it says the drive has smart support, but it doesn't show anything, it says that it's enabled, but then it says that it's disabled, picture below The picture of the Disk utility: Thanks in advance

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• Opera's problem with magnet-links

  - by Dmitriy Matveev

  I've encountered following problem while using Opera web browser: When I click on a magnet link on some web page like magnet:?xt=urn:tree:tiger:CXW6MJFRNOEFU2STCBWWOIYZLVCR2FTR37SQCXY&xl=352342016&dn=ER%20-%207x16%20-%20Witch%20Hunt.avi Opera is asking me if I want to open that link with my DC++ client. If I click 'Yes' button then my DC++ client is correctly "opening" the clicked magnet link and performing some action on it. There is also an option "Do not show this dialog again" in Opera's dialog, but it doesn't seem to be working correctly. If I check that option before answering 'Yes' and then click on other magnet link of the same kind the Opera will again ask me about how to open new link. I haven't found protocol association in 'Control Panel Default Programs Set Associations' part of my Windows Vista settings, but if I paste magnet link in "Run" dialog then Vista will handle that link perfectly. I've tried to find out how to manually set protocol association in Opera and found 'Programs' page of browser's advanced settings. There I discovered that instead of storing protocol to application associations Opera tries to store per-link associations (There are several entries with exact links as they was on web page as value of protocol field). If I click on the links which are already stored in Opera's protocols associations browser will ask me about them again. I haven't found any information on how to resolve this problem on the internet, maybe someone on this site will be able to help me.

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• Computer Won't Boot Properly, unless in safe mode?

  - by Mr_CryptoPrime

  I bought a computer today and booted it up, but when I did I only got a blank screen. I checked to make sure it wasn't the monitor by connecting it to my old computer...it worked. I then tried connecting my monitor to both DVI ports and found that the bottom one did work. However, now it just boots up and says "loading windows" and then when the login screen is suppose to come up the screen just goes blank and monitor says "no input, check cord" (or something like that). I tried reinstalling windows and then I was able to log on normally. I used the CD's and reinstalled all the drivers, then rebooted...now I am stuck right back where I started. I tried taking out the RAM and inserting into different slots, that didn't fix anything. I was able to boot up into windows using safe-mode. I suspected that my ATI Radeon 6950 was the issue and downloaded the drivers, but I can't install them on safe-mode. Someone said to install C++ distr. and I tried doing that to fix driver installation problem of "failed to load detection driver" but it wouldn't let me do that either. Please someone help me, I don't want to have to deal with the evil redtape of sending it back to get a replacement! My computer: -Content--text-_-"http://www.newegg.com/Product/Product.aspx?Item=N82E16883229236&nm_mc=TEMC-RMA-Approvel&cm_mmc=TEMC-RMA-Approvel--Content--text-_- Driver detection problem: http://www.hardwareheaven.com/hardwareheaven-tools-discussion/174912-failed-load-detection-driver-installation-error.html Driver download page: http://sites.amd.com/us/game/downloads/Pages/radeon_win7-64.aspx#1 I am using windows 7. Thanks again.

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• Mac updated just now, postgres now broken

  - by user52224

  I run postgres 9.1 / ruby 1.9.2 / rails 3.1.0 on a maxbook air for local dev. It's all been running smoothly for months, (though this is the first time I've done development on a mac.) It's a macbook air from last year, and today I got the mac osx software update message as I have a few times before, and my system downloaded approx 450mb of updates and restarted. It now says it's on OSX 10.7.3. Point is, postgres has stopped working, when I start my thin server (mirror heroku cedar) as normal, and then browse to my rails app I get: PG::Error could not connect to server: Permission denied Is the server running locally and accepting connections on Unix domain socket "/var/pgsql_socket/.s.PGSQL.5432"? What happened? After browsing around a few questions I'm still confused, but here's some extra info: Running psql from command line gives same error I can run pgadmin 3 and connect via it and run SQL no problems Running which psql shows the version as /usr/bin/psql I created a PostgreSQL user back when I got the mac (it's always been on lion) I've no idea why, almost certainly I was following a tutorial which I neglected to store in my notes. Point is I am aware there is a _postgres user as well. I know it's rubbish, but apart from a note on passwords, I don't have any extra info on how I configured postgres - though the obvious implication is that I did not use the _postgres user. Anyone have suggestions or information on what might have changed / what I can try to debug and fix? Thanks. Edit: Playing around based on this question and answer: http://stackoverflow.com/questions/7975414/check-status-of-postgresql-server-mac-os-x, see this string of commands: $ sudo su postgreSQL bash-3.2$ /Library/PostgreSQL/9.1/bin/pg_ctl start -D /Library/PostgreSQL/9.1/data pg_ctl: another server might be running; trying to start server anyway server starting bash-3.2$ 2012-04-08 19:03:39 GMT FATAL: lock file "postmaster.pid" already exists 2012-04-08 19:03:39 GMT HINT: Is another postmaster (PID 68) running in data directory "/Library/PostgreSQL/9.1/data"? bash-3.2$ exit

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• LDAP Account Locked Out Sporadically after Password change - Finding the source of invalid attempts

  - by CityView

  On a small network of machines (<1000) we have a user whose account is being locked out after an indeterminate interval following a password change. We are having severe difficulties finding the source of the invalid logon attempts and I would appreciate it greatly if some of you could go through your thought process and the checks you would perform in order to fix the problem. All I know for sure is that the account is locked out several (5+) times a day, I can't even be sure it's due to failed login attempts as there is no record of failure until the account is locked. So far I have tried; Logging the account out of everything we can think of and back in with the new password Scanning the user's box for any non standard software which might perform an LDAP lookup Checking all installed services on our production boxes to check none are attempting to run under the account Changing the user back to their old password (Problem persists so perhaps password change is a red herring) Wireshark on a box where lots of LDAP authentication is performed - Rejects only occur after account is already locked out Clearing the credential cache in - Control Panel - User Accounts - Advanced Looking at the local I'm at a loss for what to try. I am happy to try any suggestions you have in order to diagnose the issue. I think my question boils down to a simple request; I need a technique for deriving the source (Application/Host) of the invalid login attempts which are causing the account to be locked. I'm not sure if that's even possible but I suspect there must be more I can try. Many thanks, CityView

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• How can I monitor VNC via Nagios?

  - by atroon

  I have a number of remote sites which have VNC running on a few computers for support purposes. They are (obviously) only available on our internal network. I am using Nagios to keep track of all the systems in the network and I want to have it check to make sure the VNC server is running on the appropriate hosts. There is a 'check_vnc' plugin available here but it relies on VNC Snapshot which I don't want to use. Certainly I could use it, but it adds more complexity and dependency, which I want to avoid. It seems simpler to just use check_tcp to make sure I get the proper response to a connection request for VNC, e.g. port 5900, send a connect string, get back framebuffer info. My real question, I suppose, is this: What is the 'proper' generic connect string for VNC (I use both UltraVNC and RealVNC) and what is the expected response? If it's really easier to use the VNC Snapshot and check_vnc, let me know. I just can't imagine that a string of text isn't easier, faster, and less bandwidth intensive to monitor.

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• Host Name Resolution - ISA 2006 - VPN PPTP

  - by Brian Lee Jackson

  We are running an ISA 2006 server and PPTP VPN connection works fine. Clients are able to connect to internet, access Outlook, CRM, etc. The problem we are encountering is that host name resolution is not working. Example, when connected via VPN I can’t ping any box other than the VPN server by the host name. Nslookup also fails. I can ping everything fine via IP address. But for clients, they need to be able to access their “mapped” drives over the VPN which all are mapped by host name. I recently took over this position and it sounds like this used to work. What would be the best place to check first? I haven’t had much exposure to ISA and have been reading up a bit on installation procedures, etc. DNS is hosted and running on our domain controller, as well as WINS. It isn’t on the ISA box. Is there a firewall policy that perhaps got removed? What usually is required for host name resolution to pass through. Any help would be appreciated, thanks!

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• STOP 0x7b booting from iSCSI

  - by Michael

  Hi, I've a Windows 2008 SBS running. It boots of iSCSI. That setup worked for months until yesterday. I intended to reboot and gained a: STOP 0x0000007b INACCESSIBLE_BOOT_DEVICE and no idea why. My setup hasn't changed. No new controller, no new or changed iSCSI targets, no new Network Card or IP address changes. I had all Windows Updates on it. Last known good: same STOP. Allow unsigned drivers: same STOP. Safe mode (all variants): same STOP. Mount target from a client: works. Filesystem check fine. I booted of the SBS DVD but in computer repair options my target doesn't appear. When i choose setup the target appears. So, how can i diagnose what's going wrong? Any helpful tools? Any hints? Thanks in advance Michael

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