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  • How does Firefox sync really work (when adding new devices)?

    - by tim11g
    I'm adding some less frequently used computers to my Firefox sync account. These computers were previously synced using Foxmarks BYOS. When I started using Firefox Sync, I deleted some old bookmarks. Later, as I added some other machines, old bookmarks (that still existed on the other machines) were synced back to my main machine. To prevent that from happening, I wonder if I perhaps need to delete all the bookmarks from new machines before adding them to the Sync account. But then I worry that it might sync the deletion of all the bookmarks and delete them all from the server and my other machines. Is there any documentation on the exact syncing behavior in the case of adding new devices? Is there any way to monitor progress and sync status? Is there any way to cause a "one way" sync for first time connection (sync server to browser only, overwriting everything in the browser? Is there any way to see a list of devices that are associated, and the last time they have synced? Thanks!

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  • Windows Server 2003 IPSec Tunnel Connected, But Not Working (Possibly NAT/RRAS Related)

    - by Kevinoid
    Configuration I have setup a "raw" IPSec tunnel between a Windows Server 2003 (SBS) machine and a Netgear FVG318 according to the instructions in Microsoft KB816514. The configuration is as follows (using the same conventions as the article): NetA | SBS2003 | FVG318 | NetB 10.0.0.0/24 | 216.x.x.x | 69.y.y.y | 10.0.254.0/24 Both the Main Mode and Quick Mode Security Associations are successfully completed and appear in the IP Security Monitor. I am also able to ping the SBS2003 server on its private address from any computer on NetB. The Problem Any traffic sent from a computer on NetA to NetB, or from SBS2003 to NetB (excluding ICMP Ping responses), is sent out on the public network interface outside the IPSec tunnel (no encryption or header authentication, as if the tunnel were not there). Pings sent from a computer on NetB to a computer on NetA successfully reach computers on NetA, but the responses are silently discarded by SBS2003 (they do not go out in the clear and do not generate any encrypted traffic). Possible Solutions Incorrect Configuration I could have mistyped something, somewhere, or KB816514 could be incorrect in some way. I have tried very hard to eliminate the first option. Have re-created the configuration several times, tried tweaking and adjusting all the settings I could without success (most prevent the SA from being established). NAT/RRAS I have seen multiple posts elsewhere suggesting that this could be due to interaction between NAT and the IPSec filters. Possibly the NetA private addresses get rewritten to 216.x.x.x before being compared with the Quick Mode IPSec filters and don't get tunneled because of the mismatch. In fact, The Cable Guy article from June 2005 "TCP/IP Packet Processing Paths" suggests that this is the case, (see step 2 and 4 of the Transit Traffic path). If this is the case, is there a way to exclude NetA-NetB traffic from NAT? Any thoughts, ideas, suggestions, and/or comments are appreciated.

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  • High data on recv-q buffer and thread lock on java.io.BufferedInputStream in linux

    - by Sagar Patel
    We have a java application running on linux (ubuntu server). We have been facing high recv-q problem since quite some time. Application gets hang and does not read data from socket every few hours. In thread dump, we have found below stack trace. "Receiver-146" daemon prio=10 tid=0x00007fb3fc010000 nid=0x7642 runnable [0x00007fb5906c5000] java.lang.Thread.State: RUNNABLE at java.net.SocketInputStream. socketRead0(Native Method) at java.net.SocketInputStream.read(SocketInputStream.java:150) at java.net.SocketInputStream.read(SocketInputStream.java:121) at java.io.BufferedInputStream.fill(BufferedInputStream.java:235) at java.io.BufferedInputStream.read1(BufferedInputStream.java:275) at java.io.BufferedInputStream.read(BufferedInputStream.java:334) - locked <0x00000007688f1ff0> (a java.io.BufferedInputStream) at org.smpp.TCPIPConnection.receive(TCPIPConnection.java:413) at org.smpp.ReceiverBase.receivePDUFromConnection(ReceiverBase.java:197) at org.smpp.Receiver.receiveAsync(Receiver.java:351) at org.smpp.ReceiverBase.process(ReceiverBase.java:96) at org.smpp.util.ProcessingThread.run(ProcessingThread.java:199) at java.lang.Thread.run(Thread.java:722) We are not able to trace the exact reason behind this? Kindly help. We are using 16 core machine and load on the system is around 30-40 at the time of issue. We use command ss dst <ip> to find out recv-q. Recently we have been facing issues with recv-q size getting hung, were in receive buffer gets stuck at some point of time. But recvQ size is not decreasing and as a result we are losing a lot of hits from the other side, our application is not accepting any data.

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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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  • 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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  • Connection timed out on Node.js app running under CentOS

    - by ss1271
    I followed this tutorial to create a simple node.js app on my CentOS: the node.js version is: $ node -v v0.10.28 Here's my app.js: // Include http module, var http = require("http"), // And url module, which is very helpful in parsing request parameters. url = require("url"); // show message at console console.log('Node.js app is running.'); // Create the server. http.createServer(function (request, response) { request.resume(); // Attach listener on end event. request.on("end", function () { // Parse the request for arguments and store them in _get variable. // This function parses the url from request and returns object representation. var _get = url.parse(request.url, true).query; // Write headers to the response. response.writeHead(200, { 'Content-Type': 'text/plain' }); // Send data and end response. response.end('Here is your data: ' + _get['data']); }); // Listen on the 8080 port. }).listen(8080); However, when I uploaded this app onto my remote server (assume the address is 123.456.78.9), I couldn't get access to it on my browser http://123.456.78.9:8080/?data=123 The browser returned Error code: ERR_CONNECTION_TIMED_OUT. I tried the same app.js code which runs fine on my local machine, is there anything I am missing? I tried to ping the server and its address was reachable. Thanks.

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  • Server resolve issues not consistent

    - by bobthemac
    I am having some weird issues with my web server. It has a public ip address and is set-up on an openVZ virtual machine. Accessing in to the site works fine every time but when trying to access out from the server I can't always connect out. Sometimes I can connect out and resolve addresses, sometimes I can't. The issue is visible in both ssh when trying to do a wget command on Google; sometimes it works and I get the index.html page and sometimes I get nothing. The issue is more visible in wordpress where you can't view themes but after a few presses of the try again button you can then view them. I have searched google and found nothing about this issue. Does anyone here have any ideas what could be causing this strange behaviour? Ports 80 and 2222 are open for web and ssh. Failed 17:26:33.398412 IP 86.148.184.124.38445 > 176.9.36.252.http: Flags [.], ack 98383, win 632, options [nop,nop,TS val 3070086 ecr 323106946], length 0 [email protected]..|. $..-.P..,.e......x....... .....B8. Passed 17:30:00.179630 IP 146.90.206.241.50091 > 176.9.36.252.http: Flags [F.], seq 1, ack 1, win 115, options [nop,nop,TS val 13740559 ecr 323308537], length 0 [email protected]... $....P.w...x.....s(K..... .....EK. Thanks in advance

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  • Why is windows not able to create a system partition?

    - by hughes
    I'm reinstalling Windows 7 64 bit, and I encountered an issue I've never seen before. I have a legit copy of Win 64 Professional, and I've installed it probably a half dozen times on this machine in the past without a problem. Googling the error only brings me to issues with people who are upgrading to win7. The drive itself seems to not have a problem. I can mount it on other systems and I can create an NTFS partition on it on other machines. I can install Ubuntu on it without any issues. Additionally, if I try using my alternate backup hard drive, the installer gives the same error. I have run diskpart from the setup page and clean seems to report that all is well. However, I cannot get past the screen below, which says Setup was unable to create a new system partition or locate an existing system partition. This happens regardless of whether or not the disk space is already allocated. What is causing this? How do I solve or get past this?

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  • Slow, choppy video playback with nVidia 8600GT

    - by user5351
    I have an nVidia 8600GT card (made by EVGA) on a machine with Windows Vista (AMD Athlon X2 processors) and four gigs of ram. It runs pretty good, but I have had some slow/choppy/stuterring video playback issues whenever watching flash videos on Youtube or other sites. The problem is there with both Firefox and IE flash videos, but is maybe worse with Firefox. I also tried Linux with nVidia's binary drivers and it was about the same. I downloaded EVGA precision which allows me to control stuff like the fan and clock speed. The card's temp (in both Vista and Linux) is usually at 66C when idle (not playing a game or watching anything). It goes up a little when watching a video (maybe 68-72C). Any ideas on how to fix this? UPDATE: The issues are both with full screen and embedded flash videos. I have Flash 10.0.32.18 (always make sure I use most recent for security), and the CPU is an AMD Athlon 64 X2 Dual Core Processor 4000+ at 2.11 GHZ. The current GPU driver installed is the most recent GeForce one from last July.

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  • P2V Wouldn't Boot, Rebuilt initrd, Need to Clean Up

    - by Mike Soule
    We have a CentOS 5.4 server (build 2.6.18-164.el5xen). We went to P2V this server so we can have redundancy, the physical only has one PSU. The P2V only completed 99% of the way, we have a VMWare ticket opened, but they marked the ticket as low priority. I was able to boot into a rescue disc of Red Hat 5.4 and rebuild the initrd with the help of this blog post. Now the only issue is the original server had a modified initrd, which was also from a different OS build and made by an outside provider. We do not have a document outlining modifications. My question is, is it at all possible to copy the initrd off of the physical server and replace it on the virtual and some how have the virtual machine boot? Thanks for any input. Edit: I copied the initrd img from the physical and it recreated the original issue. Here is a screen capture of the error. http://i.imgur.com/MqC73.jpg Edit2: echo Scanning logical volumes lvm vgscan --ignorelockingfailure echo Activating logical volumes lvm vgchange -ay --ignorelockingfailure VolGroup00 resume /dev/VolGroup00/LogVol01 echo Creating root device. mkrootdev -t ext3 -o defaults,ro /dev/VolGroup00/LogVol00 echo Mounting root filesystem. mount /sysroot

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  • dell latitude XT touch screen issue

    - by Jake
    yesterday I installed windows 7 ultimate after I had the enterprise version on this machine for a few months. the installation went smoothly and everything worked fine except for the finger detection of the screen(only the pen worked) and the bottom screen buttons for rotating and so. so I started to install all the missing drivers dell recommends for this model on their site, but once I tried to install N-Trig degitizer driver the installation said it was unsuccessful and since then the touch stopped working completely! I tried system restore but it didn't help so I went on and formatted the harddisk completely once again and installed windows but that didn't work either. I tried to install the N-Trig's driver but it was alarting for a fatal error and said that no device was detected. same story with N-Trig rollback. so I checked the device manager and saw an "unknown device" with VID and PID values set as 0000. I figured the N-Trig driver might have messed with the device firmware or something and now it doesnt know it's ID and munufactor... Is there anything that can be done? like forcing the N-Trig driver to install on this device or something? please help!

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  • PuTTY inserts random characters during a session

    - by Zachary Polikarpus
    I recently started renting space on a remote server so that I could work on a project. I found that a relatively painless way to access it on a windows machine is through PuTTY. However, there is one thing that has always irked me when using it: for seemingly no reason random characters are sometimes inserted at the cursor. Most of the time it is just a single tilde, but rarely it spits out what looks like some escape sequence ([[^8 or the like). It will only occur when I am focused on the window, whether I am typing or 20 feet away from the keyboard. If left for long enough, it will spit tildes at random intervals (average is about 1 minute). Finally, this behavior seems to be inconsistant when running programs such as nano or the mysql interface: in nano, instead of inserting tildes, it will set marks (ctrl-^); in mysql, lines will become un-editable. My question is this: Has anyone else experienced this sort of behavior in PuTTY? And if so, what can be done to prevent/correct this behavior?

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  • How to have PHP and mod_wsgi python app on the same domain?

    - by Lazik
    I am using apache with mod_wsgi (python3) on ubuntu 12.04. I have a python app (bottle) which is at www.mysite.com/ In my python app I have routes like www.mysite.com/abbb?q=blab I would like a path www.mysite.com/forum to resolve to a php app (simple machine forums) Ideally I would like to use apache to handle the forum part and pass it to php (instead of coding it in the python app). Don't know if it's possible. I'm new to this, I have read https://code.google.com/p/modwsgi/wiki/ConfigurationGuidelines#The_Apache_Alias_Directive but I don't understand how to use it. Here is my apache conf for the mod_wsgi app, I don't know how to specify the PHP portion. <VirtualHost *:80> ServerName www.ex.com ServerAlias ex.com *.ex.com RewriteEngine On RewriteCond %{HTTP_HOST} !^www\. RewriteRule ^(.*)$ http://www.%{HTTP_HOST}$1 [R=301,L] WSGIDaemonProcess ex user=www-data group=www-data processes=1 threads=5 WSGIScriptAlias / /var/www/vhosts/ex/app.wsgi <Directory /var/www/vhosts/ex> WSGIProcessGroup ex WSGIApplicationGroup %{GLOBAL} Order deny,allow Allow from all </Directory> </VirtualHost>

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  • No audio with streaming video

    - by Chris Barnhill
    I am having trouble with audio when playing streaming videos. My sound card is fine. I know this because if I play sounds from my local machine, there's no problem. It's only when I try to play sounds from the internet that I lose audio. This only started happening recently when I did 2 things: I connected a USB headphone/microphone set to record screencasts I began recording/publishing screencasts from screenr.com. I have tried playing video both with the headset connected and without it connected: it makes no difference. If I record a screencast on screenr.com and preview it, I hear the audio. But once I publish is and play it, there is no audio. I also hear no audio with YouTube videos. I really hope someone can help. Thanks. The latest is that the problem went away after I powered my system off and on. A reboot didn't do it, I had to actually shut down the power.

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  • Sending eMails in a external subnet in vmware ESXi

    - by user80658
    This might be a bit hard for me to explain - and it is a pretty individual situation. I got a native server at Hetzner (www.hetzner.de). The public IP is 88.[...].12. I got ESXi running on this server. I can access the esxi console by the public ip, but none of the virtual machines. That's why I bought a public subnet with 8 (6 usable) IPs (46.[...]) and an additional public ip (88.[...].26). This additional public ip belongs to the first virtual maschine - a firewall appliance - which is connected to the WAN. This need to be done this way - since it is the official way by hetzner. My 46. subnet is behind the firewall. I got a virtualmin server with dovecot imap/pop3 server. When sending a email, most provider (gmail) will accept those mails, but a lot will put it into spam (aol). My theory is: The MX line of my domain says of course the ip of the virtual machine (46.[...]), but in the raw email it says that email is sent by the ip of the firewall (88.[...].26), which doesnt sound trustworthy. A solution would be if the firewall could handle mail, but it simply cant. How can I prevent this problem? Thanks.

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  • IIS 7 much slower than IIS 6

    - by JoeJoe
    I have a asp.net 3.5 web application running fine on Windows2003 IIS6. I published same exact application to IIS7.5 (Win2008R2) on a faster box (i5,8Gram) and it is significantly slower. 5-6 sec per page vs. 1-2 sec per page. During that time the Task Mgr CPU is always under 10%. Both attach to same database on other box. Benchmark is consistent from any other client browser or machine. I have connection pool on both, compression on both. Same network subnet. Forms authentication (no SSL yet). Can you give me steps on how to troubleshoot where the delays are being inserted or settings in IIS7 that I may have overlooked. Just using defaults. There is only 1 web site on each box. I understand the roles of an Application as defined in IIS has changed. There is no special Application defined in IIS.

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  • Computer won't start up. Stuck on Lenovo splash screen. Help Diagnose

    - by Ace Legend
    I have some (I'm not sure exactly what model) Lenovo 21" IdeaCentre. Honestly, the computer works off and on. I have had problems with it not being able to shutdown, which I fixed. The fan seems to be constantly running, a few other problems as well. Anyway, nobody was using it when all of a sudden it switched to a blue screen. I was in the kitchen, but when I got over to the computer I read the message. It said something about bad drivers, but that is all I saw and then it restarted. However, when it got to the Lenovo Splash screen, nothing happened. I waited there for over 10 minutes, but still nothing. I tried to turn of the computer, but the only way to do it was to pull out the power cable. I then removed all USB devices and tried again. Still nothing. It also won't respond to keyboard input when I try to use enter to interrupt normal startup. My guess is some piece of hardware is damaged inside the machine. However, I have no idea what piece it is. Does anybody have any idea what could be wrong with it? Thanks.

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  • Ubuntu 10.10 - disaster - what other linux for beginner?

    - by A-ha
    Guys, I've tried to install ubuntu (desktop and notebook ed) on my laptop and unortunately I have to say that as despite the fact that installation process supposed to be easy I couldn't finish installation of this system - didn't detect my keyboard or rather lost my keyboard as soon as I tried to switch on/off pad on my laptop. After I've discovered that, I started all over again (this time without touching my laptop's pad during installation) and yes, eventually it get to the end of installation. Unfortunately, when I've tried to switch my pad (sometimes I just do not want to use a mouse) the whole system froze. So I had to restart it with the power button and this time I didn't touch pad at all, plugged in mouse and tried to rearrange taskbars according to my liking (all taskbars on the top side of the screen and auto-hide on) and I gave up. It is so unfinished that I just can't be bothered to use it. I would like to have one linux system on my machine so I started googling and most of the links are to either ubuntu (which I just do not want to touch for now) and suse or commercial versions of linux. I do not really mind paying for something (and having experience with ubuntu I'd rather pay and have something pro then get it free and discover that it's unusable). So could someone please provide short list of linux distros which would be appropriate for a beginner, and I don't mind paying for it, I just want it to be a professional product.

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  • (Win7) Gets stuck with ~1% CPU. Especially with multithreading

    - by meow
    Windows 7 32 bit, up to date, Intel i7 860. (For some reason the company runs 32bit Windows everywhere.) I tried to update all motherboard drivers etc. as far as possible. I have a performance issue with a machine which appears in connection with multithreading (or so I think). As an example (and where I most often see it, but it appears on other programs as well): ProteoWizard is a file conversion tool for mass spectrometry files. I can add a list of files and it will attempt to process up to 8 files in parallel (quadcore x 2 threads/core). If I choose 1 to 6 files, I start the process and it goes straight through. If I have =7 files in the queue, conversion goes to ~20%, then gets stuck for 15 seconds, then continues again, always in "chunks" of a few % before getting stuck again. During the time the process is stuck, CPU is at 1%. RAM is not limiting, it is maybe at 70% or so and not going up. I don't get the same problem on other, even slower machines. The computer gets also stuck at 1% CPU doing nothing on other occasions, but for multithreading it is most frequent. Where should I look for the problem?

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  • ftp.exe does not convert end of line characters while transferring to FreeBSD ftp server

    - by Jagger
    I am having problems transferring a text file from Windows 7 using ftp.exe to a FreeBSD server. After the file transfer the end-of-line characters are not changed from \r\n to \n, Instead they remain with the carriage return character which can be seen in for example mcedit as ^M. The file is transferred in ascii mode. Has anybody run into similar problems in the past? As far as I know using the ascii mode during FTP transfer should convert those characters automatically. Does it depend on the server configuration? EDIT: The file can be seen here. EDIT: I have also tried with ncftp.exe under Cygwin but the result is the same. The carriage return character has not been removed even if the transfer type was ASCII. EDIT: It does not work the other way round either. I created a text file in FreeBSD and then downloaded it is ASCII mode to my Windows machine. The end of line characters remained LF as they were in FreeBSD.

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  • computer fails to boot during/after POST for five or six boots, then works

    - by N13
    For the last few days, my computer has had issues booting. I've seen two different behaviors: The screen displays the graphics card information, then begins to list the RAM, hard drives, etc. At different points in this process (after the graphics info), the computer shuts off. After five or six attempts, it then boots normally. In roughly the same time frame, the computer freezes, and fails to boot. I think it boots successfully on the next attempt. I've also noticed that in some instances, the computer freezes on shutdown. It gets right to the point where it should shut off, but doesn't. I recently combined the best parts of two different machines into this one. I'm booting to GRUB, with Ubuntu 12.04, Linux Mint 11 and Windows Vista (unfortunately) as my OS options. It has an Enermax Modu82+ 525W power supply, and I've used an online calculator to determine that my load shouldn't exceed 400W. I even unplugged a hard drive, but that didn't help. I found the latest BIOS, patched it and checked the settings, but that didn't fix it. I'm fairly certain this issue didn't exist at first, but might have started when the power at my new apartment dropped for a second. The machine is plugged into a surge protector strip, but it's old and I've heard they lose effectiveness with age. Is a power dip as damaging as a spike? If something were damaged, why would it boot successfully after five or six attempts? It's almost like the BIOS or PSU need to be primed. The trouble with debugging is that there seems to be a "grace period" after shutdown where the issue doesn't present itself again. What should I try next?

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  • Serious 64-bit laptop

    - by Daniel Gehriger
    For the past couple of years, I have been using an IBM Thinkpad T60p for daily work (software development, desktop & embedded). I am extremely satisfied with this machine, due to its robustness. It also has a few features I depend on: a high resolution display: 15.0" TFT FlexView display with 1600x1200 (UXGA); excellent keyboard; decent graphics and CPU performance. Some of the software I develop benefits from larger amounts of RAM, and 3GB (Windows 7 32-bit) or 4GB (Windows 7 64-bit on T60p) are no longer sufficient. My customers run desktop computers with 20GB and more, and I need to have at least 8GB to at least be able to run reasonable test cases. So I'm shopping around for a new laptop, but I'm struggling to find anything that matches my requirements: must run Windows 7 64-bit Pro or higher; must support at least 8GB of RAM (more is better) high screen resolution! While I prefer 4:3 I can live with wide screen. But I really hope to find something with a vertical screen resolution similar to what I have now... portable, so < 16" but = 14" I realize that FlexView isn't available anymore, but I'd like to avoid a glossy screen if possible. decent (not more) graphics performance, ideally hybrid (I'm doing a lot of CAD, never games). good keyboard reasonable CPU -- but I'm still fine with my current Core 2 Duo, so that shouldn't be too complicated. The T60p fits all those requirements, except the 8GB of RAM. Can you help me find a current notebook that would match most of them? I don't mind changing brand. Thanks!

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  • PHP on several servers with session-sharing

    - by Etu
    there's certanly other threads about this, but I have one more question. We are about to scale the website at work to have more than one server. And we need to share the sessions between the servers. We have been looking into different solutions, one in memcached and use Memcached as sessionhandler in PHP. That will probably work. And the idea would be to run memcached on every machine and let all webservers access all other servers memcached servers, and then we have shared sessions between the machines, yay. (we have no resources to setup with sticky-sessions yet, that's a later project. we need this running, and we need this running now. and we will loadbalance with DNS for a starter) But then... If I want to take one server down, say, for maintenance, or a server crashes, or whatever reason. I don't want the users to just loose their sessions and have to start from the beginning... That's why we need some kind of replication, which Memcached does not support. Then I found http://repcached.lab.klab.org/ -- which has multi-master replication of memcached, which is great, and is what I want. But does it work with 2 machines? Say 3, 5, 10? For future scaling. I also looked into redishttp://redis.io/ -- which also seems great, but is a bit more "shaky" with the php-session-handler support, and no multi-master-replication. The thing is that I like to use memcached, but I want to be able to power down one of two boxes without loosing half of the sessions. Any suggestions?

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  • USB drive was bootable, but no longer isn't

    - by i-g
    I'm trying to install a new OS onto a computer from a bootable USB stick. I previously installed Ubuntu Linux and it was a piece of cake -- I downloaded the ISO image, used UNetbootin to copy it to the USB drive and make it bootable, and that was that. Now, however, no matter what I try, I can't make the same USB drive bootable again! I've tried formatting it as FAT32 and NTFS. I've tried several different Linux distributions and Windows 7. I've tried using UNetbootin, Windows 7 USB Download Tool, WinToFlash, and manually making it bootable with diskpart/bootsect/bootrec. (Yes, I've tried bootsect /nt60 x: /force.) None of this seems to be working! When I try to boot from the drive, the machine reads from it (I can see the drive's LED blinking) and then gives me the same "Insert system disk and press Enter" message. (I've disabled booting from the hard drive.) Am I missing something I need to do to make the USB drive bootable again? The USB drive in question is a SanDisk Cruzer 8GB SDCZ6. The computer I'm working on is running Windows Vista SP1.

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  • Proper configuration for Windows SMTP Virtual Server to only send email from localhost, and tracking down source of spam emails

    - by ilasno
    We manage a server that is hosted on Amazon EC2, which has web applications that need to be able to send outgoing email. Recently we received a notice from Amazon about possible email abuse on that server, so i've been looking into it. It's Windows Server Datacenter (2003, i guess), and uses SMTP Virtual Server (you know, the one that requires IIS 6 for admin). The settings on the Access tab are as follows: - Authentication: Anonymous - Connection: Only from 3 ip addresses (127.0.0.1 and 2 others that refer to that server) - Relay: Only from 3 ip addresses (127.0.0.1 and 2 others that refer to that server) In the SMTP logs there are many entries like the following: 2012-02-08 23:43:56 64.76.125.151 OutboundConnectionCommand SMTPSVC1 FROM: 0 0 4 0 26364 SMTP - - - - 2012-02-08 23:43:56 64.76.125.151 OutboundConnectionResponse SMTPSVC1 250+ok 0 0 6 0 26536 SMTP - - - - 2012-02-08 23:43:56 64.76.125.151 OutboundConnectionCommand SMTPSVC1 TO: 0 0 4 0 26536 SMTP - - - - 2012-02-08 23:43:56 64.76.125.151 OutboundConnectionResponse SMTPSVC1 250+ok 0 0 6 0 26707 SMTP - - - - ([email protected] is sending quite a lot of emails :-/) Can anyone confirm if the SMTP server settings seem correct? I'm also wondering if a web application on the machine could be exposing a contact form or something that would allow this sort of abuse, looking into that (and how to look into that) further.

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