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• Change domain password from non-domain computer (AD)

  - by Josh

  I have a domain controller on Windows Server 2008. When I set up my users, I gave them all a dummy password with the "must change on next login" checked. Everyone's machine is all on the same network as the domain controller, but we are not forcing them to join their computers to the domain. The DC has a website which requires the use of domain accounts to access it. How do I tell my users to change their domain passwords without connecting their PC to the domain or making them log in to a machine on the domain? I do not want anything I will have to install on each client to allow them to change their passwords (I have a password expiration policy). Most of these workstations are XP.

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• connect to my database from another computer

  - by user3482102

  Sorry for being a :noob I am a student working on a dbms project on my laptop. I have installed mariadb and I have root access. Similarly the case with my friend's laptop. The problem is we both want to work on same database collectively as we are partners of a team in the project. How can I create a database in mariadb that we both can share? How to access that database? Please specify the software to use and implementation.

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• After turning off my monitor, the computer won't display again

  - by Nick Lassonde

  If I physically turn off the monitor (DVI connection) and then turn it back on, the connection does not wake back up. The monitor enters "Power Saving" mode. I've tried unplugging the DVI cable and plugging back in, I've tried updating the video card drivers (it's Windows Vista; Windows 7 failed to install on this machine). I can use VNC to connect to the machine again, and after a reboot, the monitor works again. Does anyone have any idea?

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• Desktop Properties Background selection problems

  - by Gazza

  From the Desktop of my XP Home Edn SP3 system, under the Right-Click Menu Properties, the [Desktop] tab, of the 'Display Properties' window shows a selection list for the Desktop's Background image. For me this list has become frozen and its slider (at right) will not move. The [Browse] button and the 'Position' dropdown list (whether the selected image is centred, stretched, etc) are also greyed out. I can still use both the Color dropdown list at the right of the Background list and the [Customize Desktop] button below it, and make any changes as desired. What's gone wrong. I'm guessing maybe a registery setting or I've deleted a file somewhere, but haven't found the cause as yet. Any suggestions?? Thanks.

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• ssl problems between two tomcat servers

  - by user1058410

  I've got one tomcat 7 server(kind of like a web server) trying to talk to a tomcat 6 server(acting as a document server on another machine) over ssl and keep getting this error java.security.cert.CertificateException: No name matching rarity64 found. Where rarity64 is the name of the document server. I've tried exporting keys from both tomcats keystores and importing them into the others keystores using java keytool. I've even tried adding them to the other machines cacerts keystore. I've also used internet explorer to import both keys into the other machine. But nothing I try works. If it matters the real webserver is IIS 7.5, which the tomcat "webserver" talks too with arr, and they don't use SSL. But the problem seems to between the two tomcat servers

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• Computer Software Needed

  - by captfrankie

  A friend started my website with Frontpage 2000 in Oct04. I used it until 09 and started to use Kompozer. I am starting to have difficulty updating my picture pages. Some pictures never show up or show up as X. I'm not sure what the problem is. I haven't been able to figure out how to upload files to Filezilla either. Is there a software program similar to Frontpage and Kompozer that will allow me to do weekly updates/addition to my picture pages without recreating the whole page? I dabbled with Web Builder 8-Easy WebEditor-Expression Web and Pagebreeze.

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• Event Log time when Computer Start up / boot up

  - by Param

  Client OS - Window XP Domain Controller:- Window server 2008 Standard R2 I had one Window XP system, i want to find out when the system has started or boot ( at what time and at which date ). I don't know which parameter / word should i search in Event Log. For finding out shutdown time, i simply find the word "Shutdown" in Event Log. Can you guide me which word should i find for finding Start up or boot time

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• Problems installing W2K8 SP2

  - by zagman76

  Hello - We are having difficulty installing SP2 on a W2K8 SP1 x64 server. When we try to do this through Windows Updates, it runs for about 1 minute and then says that it completed successfully (when clearly it did not). When we run the file manually via the download, the install fails with the following error code: 0x800f0823 I have tried running the System Update Readiness Tool (KB947821), but that did not work. Additional info about the server: It is a domain controller, also running MS-Exchange 2007 SP1 (v8.01.0336.000). Any assistance that could be provided would be greatly appreciated. In you need any more info about the server, please let me know! Thanks!

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• Problems restricting access using Apache

  - by Tola Odejayi

  I've set up XAMPP on a Windows 7 machine, and I want to restrict access to the htdocs folder to only requests from the local machine. C:\Xampp\htdocs is the web root folder. I have the following in my apache/conf/httpd.conf file: <Directory /> Options FollowSymLinks AllowOverride None Order deny,allow Deny from all </Directory> <Directory "C:/Xampp/htdocs"> Options Indexes FollowSymLinks Includes ExecCGI AllowOverride All order deny,allow deny from all allow from 127.0.0.1 allow from localhost </Directory> All my .htaccess files are blank. But when I navigate to the web root folder via a browser, I get the following message: Access forbidden! You don't have permission to access the requested directory. There is either no index document or the directory is read-protected. I tried adding the IP restrictions to the <Directory>...</Directory>, but it made no difference. What am I doing wrong here?

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• Windows 7 computer apparently connected to working wireless network but can't access router page or internet

  - by Hemmer

  I can consistently connect successfully to both the router and the internet using both my phone and two different computers which strongly suggests that the issue is at the desktop end. Only my Windows 7 desktop machine has stopped getting internet connectivity. It manages to connect to the router's network using the Windows 7 wireless dialog, but can't access either the router configuration page (192.168.1.1) or the internet in general once connected. The strange thing is the wireless network icon in the notification bar shows a full strength signal, sometimes with the yellow warning triangle. The output of ipconfig /all is: Wireless LAN adapter Wireless Network Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Broadcom 802.11g Network Adapter Physical Address. . . . . . . . . : 00-12-17-94-98-90 DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IPv4 Address. . . . . . . . . . . : 192.168.1.102(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Lease Obtained. . . . . . . . . . : 08 June 2011 10:32:16 Lease Expires . . . . . . . . . . : 08 June 2011 12:32:16 Default Gateway . . . . . . . . . : 192.168.1.1 DHCP Server . . . . . . . . . . . : 192.168.1.1 DNS Servers . . . . . . . . . . . : 194.168.4.100 194.168.8.100 NetBIOS over Tcpip. . . . . . . . : Enabled I've tried renewing DCHP settings disabling IPv6 resetting TCP stack uninstalling and reinstalling WLAN card drivers I've not installed anything new or made any changes to my knowledge, this just happened out of the blue. The only possible change is my friend connected his macbook to the network, but that has gone now and shouldn't have any lasting effects? TCP/IPv4 is set to automatically find an IP address. Antivirus is MSE (up to date) and doesn't detect anything unusual. Any ideas where to go next? Any help is greatly appreciated. For reference, the results of ipconfig /all on one of the working computers is: Ethernet adapter Wireless Network Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Broadcom 802.11g Network Adapter Physical Address. . . . . . . . . : 00-16-CF-67-E5-97 Dhcp Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IP Address. . . . . . . . . . . . : 192.168.1.100 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1 DHCP Server . . . . . . . . . . . : 192.168.1.1 DNS Servers . . . . . . . . . . . : 194.168.4.100 194.168.8.100 Lease Obtained. . . . . . . . . . : 08 June 2011 10:26:38 Lease Expires . . . . . . . . . . : 08 June 2011 12:26:38 UPDATE: Still not working, but I've managed to find a temporary workaround by tethering my Android phone, effectively becoming a new wifi adapter. Will be moving to a new flat so will test if it is a network specific thing - maybe the card has got damaged somehow? Also will see if the card is working with Linux soon.

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• How to diagnose computer freezing problem

  - by reinierpost

  I have a laptop (a Medion from Aldi) that tends to hang quite often - so often, in fact, that several attempts to install Windows XP or Ubuntu on it have all failed. However, I am able to boot and run Ubuntu as found on the standard Ubuntu 10.10 installation image. I have done this two times thus far. The first time everything was running smoothly, until at some point the GUI (i.e. X) became unresponsive. The cursor kept moving with the mouse, but menus would no longer show and clicking things no longer produced any response. So I switched to the consoles (Ctrl-F1, Ctrl-F2, etc., which in this setup automatically run shells. The shells were still responsive, and the cd command would still work, but any command that invoked an executable (e.g. /bin/ls or cd /bin; ./find caused the shell to hang up uninterruptibly. My hypothesis was that all attempts at disk access were hanging up, but I didn't actually try a command like echo /proc/$$ or while read line; do echo $line; done < /var/log/syslog to verify this. Another possibility is that an essential system library is cached in memory and somehow failing to function properly. The second time I left the system running overnight and it didn't hang itself spontaneously. I'm not sure I have the patience to just twiddle with the running system until the condition reappears, and I'm, not sure what to do once it does. Clearly we can rule out a software cause. It seems disk access related, but clearly it's not permanent hard disk failure because the system will reboot just fine. What kind of hardware problem might produce these symptoms? Can it be a memory problem?

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• 1 Computer Pulls Wrong DNS Every Morning

  - by bradenkeith

  One of my users takes his laptop home, connects to his internal network fine. He brings it in every morning and since Monday - every morning it pulls the wrong DNS every time. It pulls 1 DNS: 192.168.1.1 which is the router. The DNS are external IPs. I have several users that take their laptops home and connect to other networks - what could cause this anomaly? He's booting up when he comes in the office and a simple ipconfig /release /renew fixes the issue.

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• Problems using "at" with Apache

  - by Alex Padgett

  I'm trying to use a PHP script to create at jobs, but when it comes time to execute the jobs, nothing seems to be happening. I've tried to output any errors to log files, but have had no luck. It seems obvious that it's a permissions issue, because when I set apache to run as my personal user, everything works fine. However, when I exec wget directly from PHP, everything works fine so it seems that apache has the correct permissions to use it. The problem appears to be when using at in conjunction with apache. So I need to find a way to make this work with apache running as its own user. Here is the command I'm using: echo "wget -qO- http://example.com/" | at now + 1 minute 2>&1 Any ideas? EDIT: Apache can create the at jobs, it just seems that when they execute nothing is happening.

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• Computer won't stay powered up

  - by Android

  I have just tried to turn my PC on this morning and it won't stay powered up. It will come on as normal for about 5 seconds, not quite long enough for the monitor to wake up. Then it will power off. After about 2 seconds it will start again, it will continue like this until I pull out the plug. Plugging it in again doesn't restart the cycle although pressing the power button does. I have tried to clear the cmos but beyond that I have no ideas. It was working perfectly when I put it in hibernate last night. NOTE: I am using a Dell Optiplex 755 UPDATE 1: I took out the motherboard battery and it almost came on then it displays the message Error loading Operating System UPDATE 2: After taking out the custom video card, it says "No hard drive present"

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• Debian boot problems

  - by psp

  I've got Debian server with one disk. No dual boot or anything fancy. Just Debian 6.0 (Squeeze). I rebooted the server today and now it doesn't boot. I get the following (from GRUB): error: hd0,msdos out of disk I then get a grub prompt grub rescue> I've been googling for ages with no luck. /etc/fstab > #/etc/fstab: static file system information. > # > # <file system> <mount point> <type> <options> <dump> <pass> > aufs / aufs rw 0 0 > tmpfs /tmp tmpfs nosuid,nodev 0 0 I've run debian rescue mode and looked through the syslog. I see hundreds of entries like this: Jun 30 22:51:08 kernel: [ 615.217382] sd 2:0:0:0: [sda] Unhandled error code Jun 30 22:51:08 kernel: [ 615.217385] sd 2:0:0:0: [sda] Result: hostbyte=DID_BAD_TARGET driverbyte=DRIVER_OK Jun 30 22:51:08 kernel: [ 615.217389] sd 2:0:0:0: [sda] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 Jun 30 22:51:08 kernel: [ 615.217399] end_request: I/O error, dev sda, logical block 0 Jun 30 22:51:08 kernel: [ 615.217402] Buffer I/O error on device sda, logical block 0

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• Problems with uninstallation of windows 8

  - by Wolvorin

  I installed windows 8's developer preview version dual boot with win 7 ultimate. I put my win 8's partition to 11 GB (almost), but now when I try to uninstall the win 8 it dont allow me to uninstall it saying no enough space. What to do ?? Then I try to login to win 7 and increase the size of the partition of win 8. This also is not possible. Please help me with it. I want to uninstall it but how and what to do?

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• I think my computer is eating my USB devices

  - by user1068446

  Hi so I think the USB ports on the front of my desktop PC are eating all the devices that are plugged in. (I've found with a couple of USB disks I put at the start of the year, were then unusable on any device after wards). If this is the case, what's likely to be the problem, and how do I fix it? What would a good, simple way to diagnose the problem be? I'm a bit scared to put any of my USB devices in, because that sounds expensive. (I'm thinking I might look out for some cheap old disks).

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• Home computer traffic problem

  - by apache

  There are 3 computers sharing the bandwidth via the router, but one of them is very fast and the other two are very slow. What can be the reason for this?

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• Home computer traffic problem

  - by apache

  There are 3 computers sharing the bandwidth via the router, but one of them is very fast and the other two are very slow. What can be the reason for this?

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• Where to get laptop replacement parts?

  - by wai

  I am sure some of us have older laptops that still works but just one or two parts started not working very well. However, to send it back to the manufacturer for repair might not be worth the money (as some of them even charge consultation fees just to have it checked) as these old laptops are most probably well beyond warranty. Replacing these one or two parts could give your laptop a new lease of life. For example, I have a Dell Inspiron 640m which the fan recently failed. Everything else still works. I know enough to open up the laptop (after reading the service manual) and put it back together again, hence a replacement fan could save it. However, finding these parts turned out to be difficult. I guess I wouldn't be able to get it from Dell since I have been searching around the Dell forums and concluded if I were going to get Dell to at least talk to me, I would have to pay some money (since my warranty expired). I found this online:- http://www.parts-people.com/index.php?action=item&id=3725 However, as I don't live in the United States, shipping alone would cost me 3 times more than the part in question. In addition, if there's a problem, it would be difficult because I probably would have to mail the parts back (costing more money). One of my friend spilled water on her Macbook, she sent it back to Apple and they told her the cost of repairing it exceeds that of buying a new Macbook. They probably have to change everything except the LCD screen. I opened it up and found that most of the parts are still working, only the RAM had fried. Replaced it and it's working again. For some time before discovering only the RAM fried, I was toying with the idea of replacing the logic board myself but looks like I didn't have to. =) Now I know there's a site for Macbooks used replacement parts:- http://www.ifixit.com/ The question is, does anyone know where to get replacement parts at their own locality? It might benefit the community as a whole. Someone might know a local computer store that sells precisely just the things we needed (for now, I hope to find a shop that sells just the fan). If you own a laptop which you had an easy experience finding the replacement parts, do post that as well. PS: I wish laptop manufacturers have outlets where they sell these replacement parts (or at least let you place an order).

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• Where to get laptop replacement parts?

  - by wai

  I am sure some of us have older laptops that still works but just one or two parts started not working very well. However, to send it back to the manufacturer for repair might not be worth the money (as some of them even charge consultation fees just to have it checked) as these old laptops are most probably well beyond warranty. Replacing these one or two parts could give your laptop a new lease of life. For example, I have a Dell Inspiron 640m which the fan recently failed. Everything else still works. I know enough to open up the laptop (after reading the service manual) and put it back together again, hence a replacement fan could save it. However, finding these parts turned out to be difficult. I guess I wouldn't be able to get it from Dell since I have been searching around the Dell forums and concluded if I were going to get Dell to at least talk to me, I would have to pay some money (since my warranty expired). I found this online:- http://www.parts-people.com/index.php?action=item&id=3725 However, as I don't live in the United States, shipping alone would cost me 3 times more than the part in question. In addition, if there's a problem, it would be difficult because I probably would have to mail the parts back (costing more money). One of my friend spilled water on her Macbook, she sent it back to Apple and they told her the cost of repairing it exceeds that of buying a new Macbook. They probably have to change everything except the LCD screen. I opened it up and found that most of the parts are still working, only the RAM had fried. Replaced it and it's working again. For some time before discovering only the RAM fried, I was toying with the idea of replacing the logic board myself but looks like I didn't have to. =) Now I know there's a site for Macbooks used replacement parts:- http://www.ifixit.com/ The question is, does anyone know where to get replacement parts at their own locality? It might benefit the community as a whole. Someone might know a local computer store that sells precisely just the things we needed (for now, I hope to find a shop that sells just the fan). If you own a laptop which you had an easy experience finding the replacement parts, do post that as well. PS: I wish laptop manufacturers have outlets where they sell these replacement parts (or at least let you place an order).

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• Custom built machine has much higher power consumption than expected

  - by foraidt

  I built a machine according to the specs of a computer magazine (c't, Germany). According to the magazine, the power consumption should be at around 10W. I don't want to go into the specifics of the hardware but rather ask for general advice on where to look: I updated the BIOS/UEFI version to the latest version, installed all the recommended drivers and unplugged all hardware that's not necessary to boot into Windows. All that was left is the power supply, mainboard, cpu, cpu cooler and one SSD drive. But still I measured a power consumption of 50W, which is 40W more than it should be. I tried booting Linux Mint from a USB stick, so I don't think it's some Windows-related problem.. Where else could I look? Update 1 I dind't want the question to get closed for being too localized but if more details are necessary, here they are: The system is a desktop PC. The power consumption is measured using a Brennenstuhl PM 231 device, which was tested also by c't and they found it quite accurate. The PSU is an Enermax ETL300AWT, the mainboard Intel DH87RL (Socket 1150) and the CPU Intel G3220 (Haswell). Update 2 There is no online version of the article*. The most details I found can be read on its project page (in German, though...) (*)You can pay for downloadable PDFs, however. English translation of that project page Update 3 Regarding the sceptics: It may sound ridiculous but apparently 10W idle consumption is possible with Intel's Haswell architecture. As a kind of proof, there's an additional Blog article explicitly listing the steps needed to reduce the idle consumption to 10W. Additional hardware: I measured the consumption without the HDD, and as expected the usage dropped by around 10W. I have no chassis fans and the CPU fan is a "Scythe Mugen 4" model. It runs at around 600rpm so I think it won't draw much. When stripping off all my extra components I should be at 10W. But I'm not getting anywhere near that. I would be happy to see "just" 15W in the stripped down version but currently I'm not getting below 50W no matter which component I remove. As I see it this cannot be explained by the PSU being less efficient at lower consumption. I also waited half an hour or so (also checked that no Windows updates were running in the background) and the consumption dind't drop by more than a few watts.

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• The subsets-sum problem and the solvability of NP-complete problems

  - by G.E.M.

  I was reading about the subset-sums problem when I came up with what appears to be a general-purpose algorithm for solving it: (defun subset-contains-sum (set sum) (let ((subsets) (new-subset) (new-sum)) (dolist (element set) (dolist (subset-sum subsets) (setf new-subset (cons element (car subset-sum))) (setf new-sum (+ element (cdr subset-sum))) (if (= new-sum sum) (return-from subset-contains-sum new-subset)) (setf subsets (cons (cons new-subset new-sum) subsets))) (setf subsets (cons (cons element element) subsets))))) "set" is a list not containing duplicates and "sum" is the sum to search subsets for. "subsets" is a list of cons cells where the "car" is a subset list and the "cdr" is the sum of that subset. New subsets are created from old ones in O(1) time by just cons'ing the element to the front. I am not sure what the runtime complexity of it is, but appears that with each element "sum" grows by, the size of "subsets" doubles, plus one, so it appears to me to at least be quadratic. I am posting this because my impression before was that NP-complete problems tend to be intractable and that the best one can usually hope for is a heuristic, but this appears to be a general-purpose solution that will, assuming you have the CPU cycles, always give you the correct answer. How many other NP-complete problems can be solved like this one?

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• IE8 window.opener problems

  - by fire

  Having problems with IE8... I have a button that onclick fires the showImageBrowser() function. function showImageBrowser(params) { var open = window.open('http://localhost/admin/browse?'+params,'newwin','toolbar=0,location=0,directories=0,status=1,menubar=0,scrollbars=1,resizable=1,width=950,height=500'); if (!open) { alert('Could not open the image browser, please disable your popup blocker.'); } } Now in the image browser when you click on an image it calls this function: function selectFile(url, el) { window.opener.replaceImage('Test_Image', url); window.close(); } Which is calling the replaceImage() function in the parent window, as expeted. This is the code: function replaceImage(el, url) { $('#'+el).html('<a href="'+url+'" target="_blank" class="image">'+basename(url)+'</a>'); $("input[name='"+el+"']").val(url); } Now if you click on the original showImageBrowser() button for the second time, IE will bring up the window but this time it freezes for a few seconds and then you get the alert "Could not open the image browser, please disable your popup blocker." This works fine in Firefox (obviously) but not in IE. I haven't even tried it in IE7/6 because if it doesn't work in 8 then I know I'm going to have problems. Any advice?

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• Tablet as Car Computer

  - by Austin Fitzpatrick

  Okay, so forward this off to the right place if this isn't the right place to ask this question. I want to use a tablet computer as a car-computer. Minimum features would be to run my music (through iPod, Pandora, whatever I want) and GPS Navigation, watch TV or movies while I'm parked waiting for people, and the hard one: it needs to answer my phone calls with a pleasant interface much like in-dash systems do. It needs to detect that my phone is ringing in my pocket and provide an on-screen answer/ignore and then route the audio through the cars speakers. It would be nice to dial out and have address book access, but that is somewhat secondary. I have an iPhone myself and I figured that an iPad with 3G might make a good system for this - but I'm open to other options if an iPad can't do everything I need. I'm willing to write code, and I'm willing to jailbreak one or both devices. I haven't done much work in Obj-C, but I'm not opposed to learning a new language for this project. It's self enrichment for the most part, as I'm sure I can buy an indash entertainment system for less. Does anyone have experience with the iPhone/iPad SDK that can tell me whether or not it would be possible to get it an iPad to answer my calls in the car? What about an Android tablet? (that Adam looks promising, too).

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