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• Raspberry pi slows down my entire network

  - by gnusouth

  Whenever my Raspberry Pi is connected to the network (via ethernet) the entire network is slowed to a crawl. On my main computer, ping times for google.com go from ~10ms to ~200ms and it takes forever to load web pages. Connections are also slow on the Pi, with an apt-get update showing pathetic speeds in the order of 1KB/s. Turning off the Pi completely removes the drag from the network. I've tried static and dynamic IP addresses for the Pi, but both have the same problems. I'm currently using Raspbian (downloaded today), but also had this problem with Arch Linux. I've checked the connection's duplex with dmesg | grep -i duplex, which shows that the Pi's connection is running at 100Mbps, full-duplex, as expected. My modem/router is a Billion 7404VNPX (an Australian thing); relatively high-end, albeit a bit buggy at times (it will occassionally delete all its firewall settings). It assigns IPs in the range 192.168.1.1 to 192.168.1.20 and has 192.168.1.254 as its own IP. When I assign static IPs I tend to use the 192.168.1.200 area. Does anyone have any idea as to what could be causing this weird slowdown? Or any tests I could try? Thanks

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• Server 2008 R2 & Domain Trusts - Attempt to Compromise Security

  - by SnAzBaZ

  We have two separate Active Directory domains; EUROPE and US. There is a two way trust between the domains / forests. I have a group of users called "USA Staff" that have access to certain shares on servers in the EUROPE domain and a group called "EUROPE Staff" which have access to shares in the USA domain. Recently the USA PDC was upgraded to Windows Server 2008 R2. Now when I try to access a share on a USA server from a Windows 7 workstation in the EUROPE domain I get the "Please enter your username / password" dialog box appear, with a message at the bottom: "The system has detected a possible attempt to compromise security." When I enter a username / password for a user in the USA domain, I can then access the network resource. Entering credentials for a EUROPE user however does not give me access, even though my NTFS and Share permissions are set to allow that. Windows Server 2003 / Windows Server 2008 did not have this problem, it seems to be unique to R2. I found KB938457 and opened up port 88 on the Server 2008 R2 firewall but it did not make any difference. Any other suggestions as to what to turn off in R2 to get this working again ? Thanks

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• SPF for two different outgoing servers?

  - by Marcus

  I have ran into a problem that I think someone should have a really clever answer for. Today we have our own mailserver that looks like "mail.domain.com" – which we use to send out mail to our customers (with a modified PHPMailer script). Usually around 5000 mails every day. Everything from customer support to invoices goes through there. The from-header is set to "[email protected]". We are now thinking of migrating to Google Apps for internal use (with 70+ users). However, we cannot use Gmails SMTP for sending "bulk" mails (they have a limit of 500 outgoing mails per day) so we really want to keep using our current system for sending automated mail to our customers – and using gmails SMTP for our internal use. So, how do we set up our SPF-records (Sender Policy Framework) for this? We do not want to get stuck in any filters for "spoofing" the sender from either type of account (the ones sent from our own server, and through Gmails). In short: we want to be able to use the same e-mail adress (for sending) on two different SMTP servers (and therefore two different IP-adresses). Anyone with a good knowledge off SPF who knows how to go about? Or if it is even possible? Anything else I should think of when switching to Google Apps?

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• Sync Local ICS File with Android via Exchange/Outlook

  - by sinDizzy

  At my company we have a 3rd party app which tracks off-hours duty for all of our engineers. The app is not web-enabled and we cannot make any changes to it. It does write a simple text file and I have created an app that translates that to an ICS file. My goal is to have that appear on my calendar on my Android phone. Here is the path I am working on: DutyApp -- TextFile -- ICSFile -- Outlook(exchange) -- Android (via exchange sync) My problems: If I place the ICS file on our FILE server and then in Outlook if I go to the option CalendarOpen CalendarFrom Internet it shows up in Outlook and looks pretty good. After a couple minutes it shows up on my Android phone as well. If I change the original ICS file those changes never display in Outlook and never sync to my Android phone. This seems to be a one shot deal almost like an import. Now if I place the ICS file on our WEB server and then in Outlook if I go to the option CalendarOpen CalendarFrom Internet and use webcal:\ as the address, it shows up in Outlook and also looks pretty good. Any changes I make to the original ICS file display in Outlook. However the entire calendar never shows up in Android. This calendar is a subscription and it seems, although am not sure, that Android doesn't display Exchange subscription calendars. Yes I know it works with Gmail subscription calendars but this is Exchange. So my question is what other options are there? We are behind a firewall so cant link the ICS file to a Gmail account. I can't put the ICS file anywhere else other than our file or web server.

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• Sharing music on NAS with Zune and iPod?

  - by osij2is

  After being a long time iPod owner, I'm switching to the new Zune with its subscription model. I haven't bought a Zune yet but I'm planning on doing so within the next month or so. I have approximately 40GB worth of music and my girlfriend has her iPod music library around 30GB. I've been trying to figure out how to migrate all our music off of our laptops/desktops and centralize everything on my NAS. In sharing iPod music isn't too bad. Sharing from one machine to all is fairly easy within the iTunes player. As far as storing all the music on a NAS, again, iPods aren't too bad and imagine other systems aren't difficult. But I'm really new to the Zune and I'm beginning to run into some issues. My questions are: Is it possible to store all music from our iPods and Zune subscriptions and share music between the iPod/Zune within the same file share on my NAS? I'm sure it's possible to store music on a share, but I'm not sure how iTunes and the Zune software differs. Is there 3rd party software, maybe something like DoubleTwist that can sync based from NAS to multiple desktop/laptops? I've never used DoubleTwist but it's something that I found that looks close to being what I need. I've never quite done this myself so I'm trying to find a solution that can: a) store music on a network share; b) sync between different devices (Zune/iPod) seamlessly.

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• VGA Cable gave me an Electric Shock when connecting a Projector to a Laptop

  - by Felipe Luarte

  Yesterday I was trying to connect a Viewsonic Projector to my Samsung RC420 laptop... I followed this steps: I Plugged the Projector to a power source, in parallel I did the same thing with the laptop. Then I turned on the laptop, but not the Projector (this one turns a bright light when is connected to a power source). I put the VGA Cable to the Projector (this one being still turned down) and then when I was getting close to the VGA port of the Laptop... BAM! A big spark appear between the port and the cable! Immediately the whole electricity of my floor went off. A part of the port in my laptop kind of... melted down. It seems to be where the spark started. The same thing happened to the part of the cable involved. Now I'm using the laptop, and it seems that there is no problem in it, I haven't connect anything to the VGA port yet. And the projector is still working to, well... it turns on, and I haven't connect anything yet too. The projector was connected to the power source by a homemade electric extension.

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• ssh works fine when using public interface, but slow when using private interface

  - by Kevin M

  My Linux(UbuntuEEE) to Linux(CentOS) ssh takes a long time to log in(~15 seconds) when using the private interface, but not when using the public one. I have a Linux box acting as my router. As such, it has multiple interfaces(75.xxx.xxx.xxx, 192.168.1.1). I can ssh in from the internal interface(192.168.1.65 to .1), but it will take a while. I can ssh into the public address, and it goes quickly(~1 second). I have another box that I can ssh into the inside interface from and it goes quickly. iptables is set to accept packets coming into the interface immediately. sshd's UseDNS is normally on; I get the same problem if I turn it off and restart sshd. I normally use public-key authentication; I have done a mv ~/.ssh/ ~/ssh/ and it will ask me for a password after going slowly. After logging in(using either interface), speed is quick. ssh client version(via ssh -v):OpenSSH_4.7p1 Debian-8ubuntu1.2, OpenSSL 0.9.8g 19 Oct 2007 ssh server version(via rpm -qv openssh_server):openssh-server-4.3p2-29.el5

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• ownership of hard drive recoveery of files Windows 7

  - by Jeff

  Here is the issue. I have an old laptop that died that was running xp. I now have a win 7 laptop. I need to get the files off the old drive. Win 7 will not let me take ownership of the drive. I can runn the comand prompt in regular mode and do a dir on the drive that shows up as Q: drive in regular mode. I gives me the volume as c and the serial number. I can not take ownership in regular mode with the comand prompt or other means. Microsoft site says use safe mode with networking. So I go to safe mode the drive shows up as G: in safe mode. I use the comand prompt Takeown /f G: and get the device is not ready error. I am at a loss. All I want is to retrieve my files from this drive. Any ideas or sugestions. I don't see how you can dir and get some info in one mode and not acces it in another. I have to get ownership and permissions fixed to get in the drive to get my files. Thanks in advance. I might add that I am using a usb3.0 to ide/sata cable adapter. Software came with the device but I can't make heads or tails out of the manual to know if any of the software can help me. The soft ware is PCClone Ex lite, and Clone Drive Soft ware

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• PC dies when running at 100% CPU

  - by user155631

  I recently wrote some Java code to generate images of the Mandelbrot set (fractal). I made use of the new Fork/Join facility in Java 7 to run separate threads on all four cores (2 real, 2 virtual)simultaneously, using a large number of iterations for greater accuracy. The problem is, the process runs fine for about a minute, and then it's as if someone has pulled the plug and the PC just dies. I thought it must be the CPUs overheating, so I ran Real Temp to monitor the temperature. It's an Intel i3 processor. I can see the temperature creeping up to 70 degrees, and then it seems to level off there and run for about another 30 seconds before dying. According to Real Temp, there's still a gap of 35 degrees between the actual temperature and TJ max. I also tried disabling "CPU TM function" in the BIOS, but the problem still occurs. A colleague suggested that it might be a power supply problem, so I borrowed a more powerful PSU (can't remember what wattage it was, but it's higher than mine which is 500W). The exact same thing still happens though. Is anyone able to suggest what the problem might be, or what I can try next?

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• Need help toubleshooting PC

  - by brux

  I have had problems since my dog pee'd on my computer. Problem: loads windows fine, at random intervals from 5 minutes to 30 minutes it restarts itself. There is nothing in the event log such as errors, no BSOD, just cold restart. after restarting - sometimes- it POST's and restarts itself at the end of POST. It will do this many times and then finally load windows. The cycle then begins again, it will restart eventually. What I have done: I thought it was HDD at first, since this is the only part of the computer which actually got wet with any fluid ( the case is off the PC and the dog pee'd down the front where the HDD is located). Seatool, the seagate HDD tool, found errors when I ran it inside windows, so I ran it in DOS mode from boo-table USB and ran it. It found the same number of errors and fixed them all. I ran the scan again and it says "Good". I loaded windows and ran the scan and it also said "Good there. So the HDD appears to be fine but the problem persists, random restarts. What else could this be? I have taken the computer apart and cleaned everything and also taken the PSU apart and cleaned it thoroughly. The problem still persists, what should my next steps be?

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• Can not mount my USB disk-- Ubuntu nor windows[dmesg including]

  - by EthanZ6174

  first, here is my dmesn|tail result right after i plugged the disk: $ dmesg | tail [ 2578.697224] scsi 6:0:0:0: Direct-Access HP v100w PMAP PQ: 0 ANSI: 0 CCS [ 2578.698322] sd 6:0:0:0: Attached scsi generic sg2 type 0 [ 2578.916464] sd 6:0:0:0: [sdb] 3921920 512-byte logical blocks: (2.00 GB/1.87 GiB) [ 2578.916950] sd 6:0:0:0: [sdb] Write Protect is off [ 2578.916956] sd 6:0:0:0: [sdb] Mode Sense: 23 00 00 00 [ 2578.916961] sd 6:0:0:0: [sdb] Assuming drive cache: write through [ 2578.922460] sd 6:0:0:0: [sdb] Assuming drive cache: write through [ 2578.922470] sdb: [ 2578.969570] sd 6:0:0:0: [sdb] Assuming drive cache: write through [ 2578.969578] sd 6:0:0:0: [sdb] Attached SCSI removable disk there is nothing after 'sdb:' ... at the meantime, the lsusb shows: $ lsusb Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 004: ID 03f0:3207 Hewlett-Packard Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 006 Device 002: ID 045e:0737 Microsoft Corp. Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub so... can anyone help me? what's wrong with my USB disk? THX

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• Changing the Start Menu Power Button - Setting does not work: only (Shut down) is available

  - by Martin

  This is the second time I try to change this setting on a Vista based OS and I can't get it to work again. OS: Windows Server 2002 SP2 (not R2) = Microsoft Windows [Version 6.0.6002] = Vista When I go to: Power Options - Change Plan Settings - Change advanced power settings - Power buttons and lid - Start menu power button - Setting: the available combo box will only show the option Shut down. No other options are available. This server is part of a domain and has not been set up by me. I have not yet talked with the domain admin, but as far as I could tell from googling, only Win7 has group policy options for the start menu. (And yes, OC I will talk to the domain admin to see if he has any clue - which I doubt.) (Edit: I have now talked to our domain admin, and he's got no clue either.) I'm responsible for this server and a local administrator but not a domain administrator. I switched off User Account Control (UAC) yesterday without problems. Since I always log into this machine via RDP and this being a server, the natural choice would be the option (Log out) and not (Shut down). What can I do to fix it or to find out why it cannot be changed? Thanks!

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• CPU operating temperature ranges

  - by osij2is

  I have an AMD Phenom II 960T with 2 cores unlocked for a total of 6 cores. I don't overclock at all. I have a Arctic Cooling ACALP64 Heatsink/Fan installed. I'm currently running ESXi 5.0 so I have to go into the BIOS to read the CPU temperatures, which at idle seem to be in the 71-74C range. To me, this is pretty high, but I cannot find any official temperature ranges that AMD says the CPU can work well within. There seems to be a lot of questions on superuser and numerous forums around CPU temperatures but no one seems to have a clear consensus as to what the manufacturer temperature ranges are for specific CPUs. I've tried searching through AMDs site to no avail. At this point, I'd be willing to shut off the 2 extra cores if it keeps the heat down but until I get some sort of tolerance or range for temperature, I have no idea if the CPU is being damaged or not. Can anyone point to a direct source, article, FAQ from AMD that specifically states their CPUs temperature range? Or are CPU temperature ranges so varying that there's no possible baseline? Am I being too paranoid about this? To me, anything over 65C is a bit much and if I'm in the low-mid 70s range with NO VMs running, what can I expect if I have several VMs running?

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• Nginx + PHPBB3 reverse proxy images problem

  - by siberiano

  Hello all I have a problem with my Nginx Frontend + Apache2 backend + PHPBB3 software. It doesn't load the CSS and the images neither. I get constant errors like these: 2010/04/14 16:57:25 [error] 13365#0: *69 open() "/var/www/foo/styles/styles/coffee_time/theme/large.css" failed (2: No such file or directory), client: 83.44.175.237, server: www.foo.com, request: "GET /styles/coffee_time/theme/large.css HTTP/1.1", host: "www.foo.com", referrer: "http://www.foo.com/viewforum.php?f=43" This is my config of the site: server { listen 80; server_name www.foo.com; access_log /var/log/nginx/foo.access.log; # serve static files directly location ~* ^.+.(jpg|jpeg|gif|css|png|js|ico)$ { access_log off; expires 30d; root /var/www/trasteando/; } location / { root /var/www/foo/; index /var/www/foo/index.php; } # proxy the PHP scripts to predefined upstream .apache. # location ~ .php$ { proxy_pass http://apache; } location /styles/ { root /var/www/foo/styles/; }

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• How does one skip “Windows did not shut down successfully” in Win7-64?

  - by XenonofArcticus

  Migrating an app from an expensive and unreliable dedicated embedded x86 box running WinXP-embedded to COTS hardware (Dell E6410 laptop) running normal Win7-64. At this time, it's not feasible to deploy using Windows 7 embedded. The problem is, that the system is still sort of "embedded". The power could shut off at virtually any time without prior warning. We've stripped the OS down and removed the battery capability so that it will power down as desired. The app never writes to the disk, so it's not like we're going to corrupt anything terribly. The system is essentially idle after our app is up and running (with the exception of some computation, graphics, and TCP/IP and serial communications) so the OS enters a pretty stable state rather quickly. After a power-loss however, it rightly complains that Windows did not shut down successfully and presents the user with the Windows Error Recovery text screen. If left alone, it does eventually move on booting just fine, but we'd like to skip that step if possible. WinXP-embedded is designed to do this automatically, so I know it's possible. I've looked at the Kernel Switches but I didn't see anything documented for "Skip Windows Error Recovery". I've also read extensively on the startup process: http://homepage.ntlworld.com./jonathan.deboynepollard/FGA/windows-nt-6-boot-process.html I know I can disable the auto chkdsk in the registry, but that's not the same thing either. So, how do I streamline the boot process to not hassle the user about a situation that will be the regular normal situation?

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• SSD as primary or secondary drive on a small Linux server?

  - by Alex Martelli

  I'm pensioning off my 10-years-old home server and replacing it with an Ubuntu 10.04 box. The two storage devices are a Western Digital Caviar Green 2.0TB HD and an Intel X25-M 34nm Gen 2 80GB SATA II 2.5inch SSD (the box has 8GB RAM and an i5 750, if it matters). I don't care much about boot times (since I don't plan to reboot all that often;-); the main frequent, performance-demanding task will be (re)building large open source C or C++ software packages from sources (as an open source contributor, I do that often). So, I thought I'd keep the SSD as the secondary drive and the HD as the primary one, using the SSD mostly for the files that can otherwise demand a lot of seeking (esp. in a parallel make). However, the friendly vendor (perhaps more experienced in Windows systems than in Linux ones) thinks the "normal" way to configure the machine would be with the SSD as the primary drive. I'm pretty rusty on configuring and tuning systems, so, I thought I'd better double check on SuperUser... thanks in advance for advice about this choice!

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• 32bit dll not loading with Enable 32 Bit Applications on IIS 7.5

  - by Jon

  I have a MVC 3 Web Site referencing a 32 bit DLL. The OS is Windows 2008 R2 x64. The website is in the ASP.NET 4 App Pool. I have turned on Enable32Bit but it doesn't work. I get a Bad Image Exception but can't find out to turn this level of logging on in IIS. I have setup up a page that outputs whether it's running 32bit or 64bit and when I turn on/off the Enable32Bit on the AppPool I get the correct output. The website is also in Full Trust. I'm at a loss to try and and get it to work. I do know that it works on Win7 32bit. Can you suggest some things to try? UPDATE: I have just written a simple Windows Forms App with a button on it which calls my DLL. This was built with target of x86 and it worked fine so there is an issue with IIS or ASP.Net I think. UPDATE 2: Does it matter if the ASP.Net Pipeline is Clasic or Integrated? I've tried both but same problem but thought it was worth asking UPDATE 3: I found this question trying to do the same thing and he gave up which isnt too helpful!!

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• Exceptional slowdown of robocopy copying from VM to DFS array

  - by user1588867

  I've got an old win 2003 VM (VMware) on a blade cluster of VMs that I'm moving a considerable amount of files to our new DFS array. There are two main folders with about 1.7 million and half a million smaller files (letters, memos, and other smaller files) respectively. Total size is ~420 GB and ~100 GB. We're using the gui version of robocopy on the server to copy the files. We had initiated a file copy about a month ago to test the process and found that it was taking around 4 hours for the large file. Now that I'm in the process of actually switching the files over it has been taking 18-20 hours. Nothing has changed on the server side and nothing has changed on the settings of the copy (no logs, 1 retry with a wait of 1 second). Our intent is to shut off the share and force the copy over again to get all the files that have been left out of the copy due to being locked by users. I can't take a 20 hour outage to do that though. Does anyone have any theories about what could be causing such a delay for robocopy compared to previously shorter runs?

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• Ubuntu odd mouse and keyboard behavior when window gains inner focus

  - by Scott

  This morning on my Ubuntu 10.10 system when I open a window - for example, system-preferences-about me, if I click in to a field such as "work email", I can no longer close the window with the mouse! Clicking the X on the window will not work. Also, I loose the ability to click on anything else - clicking on the desktop, icons, menus, workspaces, etc. do not work. Even the effect when you hover over a folder on the desktop and that folder highlights - that stops until the window is closed. If I open this same screen but do not click in to a field, everything is fine - I can close the window with the X and everything else works fine. Same thing happens with several other windows I tried. Even calculator - I can open it, everything is fine until I click on a button in the calculator - then no ability to click on anything else. Have to Alt-F4 to close the window. The system is only about a week old from a fresh install (64 bit ubuntu - quad core amd machine). I uninstalled wine, turned off remote desktop/disabled in startup, also in startup disabled visual assistance, bluetooth, dropbox, klipper. Reboot, no difference. The only other thing non-standard I see in startup is nvidia. Using a logitec usb mouse, saitek usb keyboard. Was working fine yesterday. I can not think of anything I did / installed yesterday. I switched themse, then went to update manager and saw two x server / x org related updates and installed them, reboot and NOW IT IS FINE! However, then I re-enabled dropbox, klipper and remote desktop rebooted and the problem is back. Again I disabled and rebooted. Problem is still there!! So somehow I fixed it at least for a few minutes, but now it is back and I am out of ideas.

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• Drive letter not appearing after heat-related crash

  - by NickAldwin

  I recently had my old PC (has 3 physical hard drives partitioned into 6 partitions) off while on vacation. When I came back, I turned it on. I hadn't realized the room was warmer than it usually is due to hot weather while I was away. The computer was extremely slow to start up, then it crashed. When i rebooted, it got halfway through chkdsk on one of the non-system partitions, then crashed again. I opened it up and felt the hard drives and immediately shut down the computer and moved it to my basement to cool down because it was so hot. I left it there for a length of time while I reinstalled the A/C. I have now turned it on again. It is working fine, and every drive except for the one with the partition that was being checked has appeared in Windows. I scheduled chkdsk for all of the other partitions anyway, just in case, but I'm worried about that drive. I'm pretty sure the drive itself hasn't broken but that crashing in the middle of a chkdsk repair may have corrupted the data. What would you do in this situation? Most of the data on that drive was backed up, so it's not a huge deal if I lost it, but I'd like to get it back if I could. I also would love to regain usability of the drive, even if I have to wipe it -- but that's a last-resort sort of thing. What do you suggest I do?

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• Can't open shared drive after disconnecting vpn

  - by Matt McMinn

  I use a VPN to connect to my office network. On my local network I have another WinXP machine that shares a printer and a few shared folders. While I'm connected to my work VPN, I can access the shared printer and folders on the other machine just fine, and vice versa. Once I disconnect the VPN, I can't access the local machine any more, and the other machine can't access my machine. The network itself seems ok - I can ping the other machine, get to the internet, and get on to a web server shared by the other machine, but I can't get to the shared folders or printer. If I reconnect to the VPN, my access is restored. I'm guessing this is some sort of authentication thing, but I don't know what. Any ideas? Update This problem is bothering me again, so here's an update. Depending on when I first access the WinXP machine, I either have this problem, or the opposite problem. After a reboot, if I (for example) print, then connect to the VPN, I can't access the machine while on the VPN. If after a reboot I connect to the VPN, then print, I can't access the machine off the VPN. In both cases, if I enable/disable the VPN again, I can access the machine again. Thanks

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• Linux will not activate wireless after device has been re-enabled

  - by XHR

  Using a Eee 900A netbook by Asus. By pressing Fn + F2, I can disable or enable the wireless chip on the netbook, a blue LED indicates the status. I've been able to connect to wireless networks just fine with this netbook. However, if the wireless chip ever becomes disabled, I have to reboot to get my network connection back. This generally happens when suspending. For some reason the LED will be off and I have to hit Fn + F2 for it to light up again. However, after doing so, Linux will not reconnect to the network. It simply changes the wireless status from "wireless is disabled" to "device not ready". Even worse, I've recently had issues with the chip being enabled at boot, thus making it nearly impossible to get connected. I've searched around on-line but haven't found much of anything useful on this. This happens on all kinds of different distros including Ubuntu 9.10 Netbook, EeeBuntu 4 beta, Jolicloud and Ubuntu 10.04 Netbook. Edit I noticed this question is getting a lot of views. To give a quick update, I never did resolve this issue with the given distro's. However, I'm currently running Ubuntu 10.10 netbook edition and this issue has gone away.

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• What does Firefox do when "scanning for viruses" after download?

  - by Joey

  Never mind the fact that Firefox is a browser and not a AV tool, but what exactly does it do after a download? Even on systems that have an up-to-date AV this generates a pause of several seconds after download (where I can't open the file from within the DL manager) and I have no idea what FF might be trying there. I know I can turn it off (using FF only at work anyway) but I'm wondering. I can think of some things here what it might be: FF itself is a AV scanner and it loads signatures in the background and whatnot. Sounds highly unlikely and shouldn't need tens of seconds for 20 KiB files. FF tries to talk with the installed AV to munch the file. Sounds unneeded, given that most AV programs feature real-time protection anyway and therefore will have caught a virus already and also because FF does that on systems without AV installed too. FF uploads the file to some online virus checker. Unlikely and stupid. FF instructs some online virus checker to download the file and check it. Unlikely and would be a nice target for DoSing that service. FF generates a hash of the file and sends that somewhere (presumably Google) to check for. They then respond with either "Whoa, that hash is totally a virus" or "Nope, that MD5 doesn't look very virus-y to me". I'm running out of better ideas. Anyone have a clue?

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• Can't remote into Virtual PC

  - by Spamela

  I used to be able to remote into my Virtual PCs. It has been working for at least a year. Yesterday just stopped working... I cannot figure it out... Things I have triple-checked: 1. My Virtual PCs have "Allow Remote Access" checked. 2. My Virtual PCs have an account in the Administrator group that is password protected. 3. My Host's entry in the registry for the Terminal Services Port is still the default of 3389. So here is the strange thing. I can't even remote into the Virtual PC from it's host much less another PC... From the host, I can ping the Virtual PC and get a response but when trying to remote into it from the host I get the following error: Remote Desktop can't connect to the remote computer for one of these reasons: 1)Remote access to the server is not enabled. 2)The remote computer is turned off 3)The remote computer is not available on the network My host is running Windows 7. Virtual PCs are running XP. Thank you for looking at this!

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• How can laptop keyboard keys be removed and replaced?

  - by Lord Torgamus

  I'm trying to fix a laptop keyboard that has issues with keys on its left side. Just by feel, it's clear that something sticky got under there. There could be something crunchy too, but that might just be the sound of the key's spring releasing itself from the sticky. I don't know the cause because it's not my computer and the owner isn't sure, but I'm guessing soda spill for now. The computer is an HP dv2500. I've removed the keyboard and blown under it but that hasn't helped. I didn't use compressed air because I just don't have any available, but I suspect it wouldn't help with sticky. So, I'd like to pop they keys off and clean with damp cotton swabs or similar. Is there a proper way to remove the keys? I've found some instructions via Google for non-laptop keyboards, but they don't seem like they'd work for me. Alternate solutions to the problem also welcome, but I've been curious about how to remove the keys for some time for other reasons.

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