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  • Laptop hangs on POST and does not finish except on rare occasions

    - by user1049697
    I have an old Toshiba Satellite A100 laptop that hangs on POST when I try to start it. On rare occasions it does finish the POST and boots Windows successfully, but most times it just finishes it partially and continues to hang. I can enter the BIOS though when it has frozen, but I have to open the DVD-drive first for some reason. The keyboard is not quite right either, and I can't navigate the BIOS properly because the arrow keys doesn't work. I tried an external keyboard, but the problem persisted. I have tried to remove the memory, hard drive, and battery to see if any of these were the problem, but it did not solve it. The one logical thing left to do would be to remove the CMOS battery, but the "brilliant" engineers at Toshiba have place it such that a complete disassembly of the machine is necessary. What this all boils down to is basically the question of whether I can "save" this machine and get it to boot properly, or if I should just send it off to recycling. I suspect it might need costly repairs, but I can't bring myself to throw it away before I have made sure it's completely dead.

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  • Distorted Sound

    - by BCable
    I have my laptop hooked up to my receiver for sound output. I hear a hissing/crackling background sound that is really loud and hard to just ignore (but possible). When my 360 is connected, the sound comes out perfect, so it's just with this laptop. Previously, I thought it was just my laptop and just submissively just let it slide. I just bought a brand new laptop though and it's doing the same thing. I have found out more information now that I know it's not my laptop. I have used this laptop in similar environments where it worked just fine (different speakers). I have bought a new cable to connect to my receiver and it did nothing (headphone jack to RCA). I tried different ports on the receiver (Video 1-3) and it always happens. I have discovered that the sound goes away if I unplug my laptop (so it's running on battery). Because of the last one, I tried plugging my laptop into a different outlet across the room and it's STILL doing it. Doesn't matter if I boot to Linux or Windows, yet my phone (Android G1) doesn't cause this sound using the exact same cable. Any ideas? I'm out of them! Thanks!

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  • Need advice on a monitoring, reminder and warning application.

    - by cbmeeks
    I am a developer that also has to monitor several things on different servers. Such as: 1) Did all of the MS SQL databases backup last night? 2) Did all of the MySQL databases backup last night? 3) Were the database dumps actually copied to the right folder? 4) How much free space is left on each server's hard drives? 5) How big are folders "abc", "def", "etc" getting? 6) Send emails/alerts when thresholds are reached Etc. Just basically something to help me NOT forget such important things. I thought about writing something myself but didn't want to waste the effort if something is already out there. I would also prefer one application instead of many if I could. Thanks. EDIT Forgot to mention the operating system. These run on Windows Server 2003 and/or 2008. In fact, what would be cool is a program that supports multiple servers from one machine. Something that can log into those servers.

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  • Install PHP mcrypt on Red Hat 4

    - by Chris
    I'm having a very hard time getting mcrypt for PHP installed on a Red Hat 4 server. I've downloaded the rpm but it tells me: error: Failed dependencies: php-common(x86-32) = 5.4.7-2.fc18 is needed by php-mcrypt-5.4.7-2.fc18.i686 rpmlib(FileDigests) <= 4.6.0-1 is needed by php-mcrypt-5.4.7-2.fc18.i686 libc.so.6(GLIBC_2.4) is needed by php-mcrypt-5.4.7-2.fc18.i686 libltdl.so.7 is needed by php-mcrypt-5.4.7-2.fc18.i686 rtld(GNU_HASH) is needed by php-mcrypt-5.4.7-2.fc18.i686 rpmlib(PayloadIsXz) <= 5.2-1 is needed by php-mcrypt-5.4.7-2.fc18.i686 So when I try to install one of those packages, they also require another 8 packages. So I'm diving into dependency hell here. Now if I try to compile mcrypt from source, this is what I get: checking for libmcrypt - version >= 2.5.0... no *** Could not run libmcrypt test program, checking why... *** The test program failed to compile or link. See the file config.log for the *** exact error that occured. This usually means LIBMCRYPT was incorrectly installed *** or that you have moved LIBMCRYPT since it was installed. In the latter case, you *** may want to edit the libmcrypt-config script: no configure: error: *** libmcrypt was not found But I was able to install libmcrypt from an rpm packages successfully. Any suggestions? Also, I cannot use up2date as it requires an active paid account from Red Hat and since the staff has changed rather rapidly in the last year where I work, no one knows if there even was any support accounts.

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  • Dell XPS 17 Laptop USB SS Ports don't work until machine rebooted

    - by Matt
    I have a new Dell XPS 17 laptop and have an issue that the two USB SS ports on the rear of the machine are not recognising anything when I start-up. Have tried mouse, keyboard, headset, USB display. If I plug a USB hub in the power light on the hub lights (presume this is hard-wired) but a mouse plugged into the hub does not light up. If I restart the pc the ports work fine. Also the other two USB ports work fine all the time. I have switched off the power saving setting on the device manager (Power managementAllow the computer to turn off this device to save power) and also in the advanced power settings (USB Settings USB Selective suspend setting:disabled) I have also disabled USB powershare in the BIOS (not sure what this actually does!) This is becoming very annoying having to restart the machine every day before I can start work Running Win 7 Pro x64 EDIT: I have found that setting USB Emulation to Disabled has helped the devices to be recognised during start up but they keep dropping out completely when in use EDIT 2: I contacted Dell about this issue who told me to update the BIOS driver, when I asked if I should downgrade from the factory installed A13 to the A12 posted on the dell website they said no. However there is now an A14 available on the website has anyone tried this?

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  • The bottlenecks of any computer, what to look for?

    - by WebDevHobo
    Whether it is a laptop or a desktop, any computer is made up of several pieces of hardware that communicate with each other. Sending data back and forth to ensure that the user gets the desired results. I have seen some theoretical stuff on computers & hardware, but I wonder how it all comes together. CPU RAM Graphics Card L1 CACHE L2 CACHE L3 CACHE FSB ... And all other things. Which is the biggest bottle neck? Why would a person not want/need a big value in one of those categories in certain situations? P.S.: when reading the specs of the i5 750 processor, I came across this description: In place of the FSB, one or more high speed, point-to-point buses called Quick Path Interconnect (QPI) are used, formerly known as Common Serial Interconnect Bus or CSI. QPI features higher bandwidth than the traditional FSB and is better suited to system scaling. What is this, and how does it compare to FSB? EDIT: I am not planning to buy a computer at all. The goal of this question is to understand the internal relation of various hardware pieces, their specific functions and how they work together. For instance, I have heard to a somewhat higher-than-usual amount of L2/L3 Cache can help speed up your computer. What's up with saying that? Also I forgot to mention Hard-disk RPM.

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  • Can I disable this Windows (XP) Security Warning?

    - by FumbleFingers
    I recently reformatted my hard drive and reinstalled Windows XP (I know I'll have to take the plunge and commit to Win8 "real soon, now", but I'm just not quite ready for the upheaval yet! :) I used to use WinRar (and later, when I got fed up with the "nag" messages, 7-Zip), but I haven't installed either of them in my new configuration, so I must be using the built-in XP facility when I open *.zip files. For years, I've been opening downloaded *.zip archives, and using "drag & drop" to copy to a File Explorer window open on the folder where I want the files to end up (usually, My Documents\Downloads). But now I find that when I "drop" the file(s), I get a pop-up Windows Security Warning saying Are you sure you want to copy or move files to this folder? You should only move or copy files from locations that you trust Can anyone explain why I'm getting this message, and is there any (reasonably easy, please! :) way to suppress it? Since I've already put the *.zip file on my computer, it seems a bit late to ask if I trust it. (Thus far, the files in question have always been plain text, so it's not a matter of dodgy programs, etc.) Apologies for the low quality image - I don't have the appropriate tools or knowledge to do any better, and it doesn't help that my "PrtScr" screen capture has included what would have been on my second monitor (TV) if it had been turned on. If you can't read it, trust me - I have copied the text verbatim.

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  • How to get german QWERTY on Windows?

    - by Arturas M
    Well I'm used to having the world standard keyboard which is qwerty and not qwertz... But on windows I can't find the choice for german input which would be qwerty, not qwertz. In linux there was german input with qwerty so it was fun. I believe it should be on Windows too? Cause i'm sick of this qwertz always having to correct and search for z or y... Yeah, I know, if Germans made a mistake, it wasn't loosing WW2... Edit: Maybe I wasn't clear enough, it's not about changing between different language inputs? It's about having all german keys in german input, just the z and y would be in the correct places like all the worlds keyboards use and like the US keyboard uses... Solution: Well unfortunately by searching everywhere and waiting for answers I couldn't find what I needed, so I came up with this solution - I used The The Microsoft Keyboard Layout Creator And created my own very custom layout by modifying the default german layout and switching places of z and y. In case somebody needs it and doesn't want to go the hard way, I decided to upload them, so here are the links to download and install the keyboard layout: http://www20.zippyshare.com/v/95071447/file.html http://rapidshare.com/files/3822150342/German%20QWERTY%202%20by%20Arturas%20M.zip It will appear as a choice under German input between languages in your language bar. If you just want to use this german layout, just remove all german layouts and install this one. Good luck and have fun using it!

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  • Recovering a damaged microSDHC

    - by djechelon
    I just bought from eBay a Kingston 32GB microSDHC that was advertised as defective. The seller said that there could be formatting problems or with transfer of large files. Unfortunately, when I got it, it was a total mess. My Nikon camera doesn't read it at all (OK, maybe it doesn't support 32GB) My Linux laptop doesn't mount it: can't read superblock The same laptop refuses to mkfs.msdos because it failed whilst writing reserved sector The same laptop, under Windows, doesn't read nor format the card HTC HD2 mounts the MMC, allows me to write via USB, but is unable to open the just written files OK, folks, now you would say I would have to go through Paypal complaint... that's not that easy. I consciously bought a half-price card that was known to show some defects, and Paypal complaints take time. Obviously, I can't accept somebody sold me a completely use-less computer decoration. So I'll keep it as last option. My question is Do you know a way, under either Linux or Windows, to thoroughly scan, test and possibly repair memory cards, even if I have to lose some percentage of space because of bad sectors? If I can keep at least half of the card intact it would certainly be fine. I used to do broken sector marking with hard disks in the past. I almost forgot: MONSTR:/home/djechelon # fsck /dev/mmcblk0p1 fsck from util-linux-ng 2.17.2 dosfsck 3.0.9, 31 Jan 2010, FAT32, LFN Read 512 bytes at 0:Input/output error

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  • Software mirroring (RAID1) versus "Fake Raid" for new Windows 7 install

    - by kquinn
    I've just ordered two new hard drives for my main desktop and a copy of Windows 7 Professional 64-bit. I'd like to do a clean install of Win7 onto the new drives (leaving my old XP Pro boot partition around for a while in case something goes disastrously wrong, etc.). I want to have them set up in mirrored (RAID-1) mode. My understanding is that Win7 Pro can do software mirroring, but can I set this up directly at install time? If so, how? Note that I'd like the disk to be split into three partitions (OS/Apps&Data/Bulk data), all of which should be mirrored. Would it be better (more reliable or faster) to use my motherboard's hardware RAID support? My motherboard is an older nVidia nForce 680i SLI, which is not the most stable of motherboards, and I'm not sure how trustworthy its RAID1 configuration might be (or if Win7 could even detect and install onto a hardware-mirrored volume). Also, the performance characteristics of RAID1 are rather different than RAID0 or RAID5, and I'm wondering if Win7's software mirroring might actually be faster than hardware RAID1 (for example, I'm more of a Unix admin when I have to wear the sysadmin hat, and I've had great success deploying ZFS; most hardware RAID1 implementations have to read both disks and compare results to look for data errors, but ZFS can read from only one disk in the mirror and just use the built-in checksum, meaning it can have up to 2x the number of reads in-flight, as long as there's no data corruption). Edit: Okay, my question about whether Windows 7 can do software mirroring has been answered, and it can. I'm still unsure whether Windows software RAID or my motherboard's hardware "fake RAID" function is a better choice, though. Remember, I'm only interested in mirroring -- not the more complicated striping or parity operations that generally show the poor performance of crappy motherboard RAID solutions.

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  • Network Misconfiguration when adding first host to new vSphere cluster

    - by dunxd
    I am building a new vSphere cluster from scratch. I have installed ESXi on the first host, and built a vCenter server on a VM residing on that host (storage is on the local hard drive, although we have iSCSI targets which I can reach from the host). The cluster is configured for HA. When I try and add the host to the cluster, I get an error at the point where HA is configured - Cannot complete the . I have stripped the network configuration of the host down to the most basic - a single NIC attached to a single vSwitch - this is running the VMKernel Port on VLAN 8 - that is our Management VLAN. The vCenter server will have a network address on this VLAN, so I also set the initial Virtual Machine Port Group to this VLAN, and connected the vCenter server NIC to this port group. I understand I can't connect the vCenter server to the VMkernel port group, but shouldn't I be able to connect the vCenter server to a Port Group in the same VLAN? If not, do I need to create a VLAN specifically for VMKernel Port Group? I plan to set up another port group for vMotion with a dedicated and isolated VLAN (i.e. VLAN isn't routed) so this wouldn't allow vCenter to communicate. Does anyone have any suggestions, or other ideas for what might be causing the problem. I've read through the documentation, but it isn't giving me any pointers, and the error message isn't helping me beyond telling me something is wrong with my network config.

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  • Transferring 'Live' Documents to Another Computer

    - by waiwai933
    I was wondering if there was any OS/Application that has some support for transferring a document to another computer without having to save, transfer and then reopen. Basically, is there a way so that if I'm working on my desktop, I can click a button (or something similar) and then have the exact state of that computer/application transferred to another? For example, if I'm writing a document, is there a way to get it to computer B without saving it, putting the file on my flash drive, and having to reopen it? Edit: I just realized that this is possible through the wonderful phenomena known as cloud computing, but this is not the type of solution I'm looking for. Edit 2: I wanted to clarify: By 'save', I meant that I didn't want to have to save it to a special location, be that a (flash) drive or uploading to the web. Saving to the local hard drive is fine (and probably necessary, since technologies such as Bluetooth require the file to be saved somewhere). This is a bit inspired by a scene in Avatar, so I highly doubt that this actually exists... but if it does, I don't want to miss out.

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  • Fast distributed filesystem for a large amounts of data with metadata in database

    - by undefined hero
    My project uses several processing machines and one storage machine. Currently storage organized with a MSSQL filetable shared folder. Every file in storage have some metadata in database. Processing machines executes tasks for which they needed files from storage and their metadata. After completing task, processing machine puts resulting data back in storage. From there its taken by another processing machine, which also generates some file and put it back in storage. And etc. Everything was fine, but as number of processing machines increases, I found myself bottlenecked myself with storage machines hard drive performance. So I want processing machines to put files in distributed FS. to lift load from storage machines, from which they can take data from each other, not only storage machine. Can You suggest a particular distributed FS which meets my needs? Or there is another way to solve this problem, without it? Amounts of data in FS in one time are like several terabytes. (storage can handle this, but processors cannot). Data consistence is critical. Read write policy is: once file is written - its constant and may be only removed, but not modified. My current platform is Windows, but I'm ready to switch it, if there is a substantially more convenient solution on another one.

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  • CPU-adaptive compression

    - by liori
    Hello, Let assume I need to send some data from one computer to another, over a pretty fast network... for example standard 100Mbit connection (~10MB/s). My disk drives are standard HDD, so their speed is somewhere between 30MB/s and 100MB/s. So I guess that compressing the data on the fly could help. But... I don't want to be limited by CPU. If I choose an algorithm that is intensive on CPU, the transfer will actually go slower than without compression. This is difficult with compressors like GZIP and BZIP2 because you usually set the compression strength once for the whole transfer, and my data streams are sometimes easy, sometimes hard to compress--this makes the process suboptimal because sometimes I do not use full CPU, and sometimes the bandwidth is underutilized. Is there a compression program that would adapt to current CPU/bandwidth and hit the sweet spot so that the transfer will be optimal? Ideally for Linux, but I am still curious about all solutions. I'd love to see something compatible with GZIP/BZIP2 decompressors, but this is not necessary. So I'd like to optimize total transfer time, not simply amount of bytes to send. Also I don't need real time decompression... real time compression is enough. The destination host can process the data later in its spare time. I know this doesn't change much (compression is usually much more CPU-intensive than decompression), but if there's a solution that could use this fact, all the better. Each time I am transferring different data, and I really want to make these one-time transfers as quick as possible. So I won't benefit from getting multiple transfers faster due to stronger compression. Thanks,

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  • a disk read error occurred

    - by kellogs
    Hi, ¨a disk read error occurred¨ appears on screen after choosing to boot into Windows XP from GRUB. [root@localhost linux]# fdisk -lu Disk /dev/sda: 160.0 GB, 160041885696 bytes 255 heads, 63 sectors/track, 19457 cylinders, total 312581808 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x48424841 Device Boot Start End Blocks Id System /dev/sda1 63 204214271 102107104+ 7 HPFS/NTFS Partition 1 does not end on cylinder boundary. /dev/sda2 204214272 255606783 25696256 af HFS / HFS+ Partition 2 does not end on cylinder boundary. /dev/sda3 255606784 276488191 10440704 c W95 FAT32 (LBA) Partition 3 does not end on cylinder boundary. /dev/sda4 276490179 312576704 18043263 5 Extended /dev/sda5 * 276490240 286709759 5109760 83 Linux /dev/sda6 286712118 310488254 11888068+ b W95 FAT32 /dev/sda7 310488318 312576704 1044193+ 82 Linux swap / Solaris sda is a 160GB hard disk with quite a few partitions and 3 OSes installed. I am able to boot into Linux and Mac OS fine, but not into Windows anymore. The Windows system is located on /dev/sda1. I can not recall how exactly have I used testdisk but it once said that ¨The harddisk /dev/sda (160GB / 149 GB) seems too small! (< 172GB / 157GB)¨ or something simillar. So far I have tried to ¨fixboot¨ and ¨chkdsk¨ from a recovery console on the affected windows partition (/dev/sda1), the plug off power cord for 15 seconds trick, reinstalling GRUB, repairing the MFT and boot sector of the affected partition via testdisk, what next please ? Thank you!

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  • A driver (service) for this device has been disabled. Is how the code 32 starts off:

    - by E S
    A driver (service) for this device has been disabled. An alternate driver may be providing this functionality. (Code 32) No drive letter show in device manager, and the dvd/cd is now not useable because it is not seen. This all happened, when i starting using a new, external usb hard drive from Buffalo. I have win 7 64bit. Everything else looks to be working fine. I even out of desperation, tried to hook up, and external dvd that had worked fine in the past. Just too slow and ate up memory, so i never used it. It tries to use the same drives, and when you click to update drivers, it says this is the best one. HELP.... even if i wanted, (WHICH I DON'T), to use the factory win 7 re-installation dvd, how,lol. No drive to install it from in this situation. I am at a lose here, and Buffalo tec was of no help at all. Just said he could not help. Any help would be much appreciated.

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  • Linux commands shows different results

    - by ClydeFrog
    I'm really having a hard time to process these results on my Ubuntu server. I have a major problem with my JBoss server where I get FileNotFoundExceptions along with "No space left on device" errors. And I thought "maybe I'm out of disk space", and used df command to figure out how much I have left: root@ubuntu1:/# df -h Filsystem Storlek Anvnt Tillg Anv% Monterat på /dev/mapper/ubuntu1-root 36G 13G 21G 38% / none 2,0G 192K 2,0G 1% /dev none 2,0G 0 2,0G 0% /dev/shm none 2,0G 64K 2,0G 1% /var/run none 2,0G 0 2,0G 0% /var/lock /dev/sda1 228M 23M 193M 11% /boot /dev/mapper/vgdata-lvdata 79G 9,2G 66G 13% /data And as you can see, I have plenty of space left. And I also checked if I'm out of i-nodes: root@ubuntu1:/# df -i Filsystem Inoder IAnv IFria IAnv% Monterat på /dev/mapper/ubuntu1-root 2346512 61992 2284520 3% / none 505380 773 504607 1% /dev none 507383 1 507382 1% /dev/shm none 507383 30 507353 1% /var/run none 507383 2 507381 1% /var/lock /dev/sda1 124496 230 124266 1% /boot /dev/mapper/vgdata-lvdata 10486784 233945 10252839 3% /data But then i used du: root@ubuntu1:/# du -s -h /* 7,5M /bin 23M /boot 19G /data 192K /dev 11G /eniro 5,3M /etc 112K /home 0 /initrd.img 183M /lib 0 /lib64 16K /lost+found 12K /media 4,0K /mnt 4,0K /opt du: kan inte komma åt "/proc/20452/task/20452/fd/3": Filen eller katalogen finns inte du: kan inte komma åt "/proc/20452/task/20452/fdinfo/3": Filen eller katalogen finns inte du: kan inte komma åt "/proc/20452/fd/3": Filen eller katalogen finns inte du: kan inte komma åt "/proc/20452/fdinfo/3": Filen eller katalogen finns inte 0 /proc 18M /root 8,2M /sbin 4,0K /selinux 8,0K /srv 0 /sys 40K /tmp 691M /usr 1,2G /var 0 /vmlinuz Notice that /data and /eniro are 30G combined! How is it possible? Do I have a memory leak somewhere? Or is it something else? ----- EDIT 1 ----- Ok, I figured out that /data has its own mount so it's not possible to combine /data and /eniro because they aren't on the same mount. But how come it says 9,2G on the first command when it says 19G on the third on directory /data?

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  • Apache taking up a lot of CPU while running request-tracker4

    - by bhowmik
    I am trying out a request-tracker installation on an EC2 micro instance. The specs for the micro instance are as follows 1) Ubuntu 12.04 64bit, 613MB RAM, 8GB Hard Drive 2) Running request-tracker 4.0.4 from the repository, perl 5.14.2, Apache2, MySQL5 3) Request-tracker4.0.4 running with mod_perl2 and Worker mpm 4) Apache configured with Worker MPM. Config snippet given below Timeout 150 KeepAlive On MaxKeepAliveRequests 60 KeepAliveTimeout 2 <IfModule mpm_worker_module> StartServers 2 MinSpareThreads 25 MaxSpareThreads 75 ThreadLimit 64 ThreadsPerChild 25 MaxClients 150 MaxRequestsPerChild 0 </IfModule> Now when I start Apache2 it works fine for some time and after a while the CPU load shoots up to 99% or more. Usually it is one or more Apache processes doing this. I've tried a to modify the worker module configuration without any luck. The log files for both Apache2 and request-tracker4 are set to log debug messages and don't show anything to indicate what could be causing this. The system gets a maximum of 5 users at any given time and usually (90% of the time) it is just 2. I've just installed it and we only have 20 tickets in the database. I don't think its the memory thats causing the issue since the server isn't swapping or even close to it and I hardly see the memory usage go up. Would appreciate any pointers on how to go about troubleshooting this. In case it helps I've also tried this out a similar installation on a small instance (Identical settings except RAM bumped upto 1.7GB) and I still see the issue.

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  • SSD Drive not being recongized in BIOS

    - by chobo2
    Well I bought my first drive Mushkin Chronos 180GB and got it installed in my computer and loaded up. I went to windows 7 and initialized the drive and then I installed "SSDlife Free" and loaded it up and my the SSD drive came up said it was "powered on 3 times"(thought it was odd but then thought maybe some testing???). I then restarted my computer and loaded into Acronis. Went to my SSD drive and make a partition called windows(made a basic logical partition). I then loaded up Norton ghost and wanted to copy my current windows onto the SSD drive on the partition I made found out I could not do it through the recovery disk so I made a backup of my windows drive and wanted to then restore it onto the SSD drive. Came back an hour later when the backup was done. I tried to restore the it on my SSD drive and could not find the partition so I loaded up Acronis again and it did not see it. I then went to the bios and saw only my other hard drive. What I tried Tried uplugging and replugging in both sata and power cables. Tried using the power and sata cable from the working drive and giving it the ones that SSD drive were using. Tried Sata AHCI Mode (Intel ICH9 Southbridge) Tried SATA PORT0-1 NATIVE MODE (Intel ICH9 Southbridge) Nothing worked. Software / hardware Windows 7 ultimate Gigabyte S-Series GA-P35-DS3L Mother board I hope someone has some ideas on why it is not being recognized.

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  • Anyone else experiencing high rates of linux server crashes today?

    - by Bron Gondwana
    Just today, Sat June 30th - starting soon after the start of the day GMT. We've had a handful of blades in different datacentres as managed by different teams all go dark - not responding to pings, screen blank. They're all running Debian Squeeze - with everything from stock kernel to custom 3.2.21 builds. Most are Dell M610 blades, but I've also just lost a Dell R510 and other departments have lost machines from other vendors too. There was also an older IBM x3550 which crashed and which I thought might be unrelated, but now I'm wondering. The one crash which I did get a screen dump from said: [3161000.864001] BUG: spinlock lockup on CPU#1, ntpd/3358 [3161000.864001] lock: ffff88083fc0d740, .magic: dead4ead, .owner: imapd/24737, .owner_cpu: 0 Unfortunately the blades all supposedly had kdump configured, but they died so hard that kdump didn't trigger - and they had console blanking turned on. I've disabled console blanking now, so fingers crossed I'll have more information after the next crash. Just want to know if it's a common thread or "just us". It's really odd that they're different units in different datacentres bought at different times and run by different admins (I run the FastMail.FM ones)... and now even different vendor hardware. Most of the machines which crashed had been up for weeks/months and were running 3.1 or 3.2 series kernels. The most recent crash was a machine which had only been up about 6 hours running 3.2.21.

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  • How do I delete hardlinks, symbolic links, junction points, etc please?

    - by jonny
    I could be wrong, but I'm yet to hear a valid argument for the exploitability that these things deliver...outweighing their very dubious / debatable functionality. They seem to me to be marginally handy, but I don't think I have any need for them. I do have a need for security, however. How can I delete their entire functionality permanently from my hard drive, please? Microsoft only has pages on how to create them; which seems almost peculiar to the point of being dubious (at least, to me...) And just a dumb command line question, am I correct in assuming fsutil hardlink list c: will enumerate every single hardlink on that drive? C:\Windows\system32>fsutil hardlink list c: \Windows\System32 Also, how do I delete symbolic links please ;) But I'd just rather have all symbolic linking and recursion-creating stuff removed, if that's possible? C:\Windows\system32>fsutil behavior query symlinkevaluation Local to local symbolic links are enabled. Local to remote symbolic links are enabled. Remote to local symbolic links are disabled. Remote to remote symbolic links are disabled.

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  • Managing multiple IMAP accounts in Thunderbird

    - by baritoneuk
    I've been using Thunderbird for years without issues with 20+ pop3 accounts. I'm moving over to imap which will enable me to keep copies of the emails locally and on the server whilst keeping everthing synchronised. However I'm looking for the best way to manage multiple imap accounts on Thunderbird. Currently I have a filter that copies all the emails into a central inbox and into seperate local folders. The reason for this is I go through my inbox daily and delete all emails that don't require any action. I move any emails that require action to my "action" imap account folder. This way I can syncronise all the emails that require action across multiple computers (and mobile devices). This technique is my implemantion of the GTD or Getting things Done philosophy. I also copy over each email into seperate local folders. The reason I do this is just in case any emails on the imap accounts get deleted, or something drastic happens on the server which means I lose all the emails. My business partner has access to some of these emails and still uses pop3 (with "leave copy on server" checked), but I know sometimes Thunderbird can still delete emails off the server sometimes. The problem with the above is that thunderbird gives me the dreaded error dialogue saying that the emails cannot be filtered due to another process. I find the folder list in Thunderbird hard to manage. Here is a screenshot of part of my folder list- as you can see it's a bit of a complicated list and not easy to manage: What would be the best way of me managing multiple imap accounts whilst allowing me to have copies put in a central folder and emails in local folders? It would be useful if people think this is necessary, as perhaps there is a betterway? How do people manage multiple imap accounts in a way that allows them to keep on top of actionable emails? I'd be interested in how others manage this. I've never used the Thunderbird-based client "Postbox", does this handle multiple imaps better?

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  • Measure Total Bandwidth for Billing

    - by TonyZ
    I am setting up a new network which customers will host their applications on. It needs to be able to scale out to a few hundred servers and each server will have several VMs on it. Right now in my test environment, after the telco router, we are using a Linux router/firewall which is then connected to a Layer 2 switch. Could be a layer 3 in the future. I need to track total bandwidth per VM for each machine, and I need to do it in a way that it is not part of the VM. Each VM will have a private class ip address which is Natted by the gateway, or we may eventually run more than firewall/reverse proxy off a layer 3 switch. So my thinking is that I can do it off of a promiscuous port on the switches, or at the gateway firewall. I would like to have an out of the box solution, preferably open source. Does anyone have suggestions on the easiest way to set this up, and the easiest tool to use. I have looked at the web sites for Nagios, Zenoss, Zabbix, ntops on the firewall, etc. It is hard to ascertain just from the web sites if they do exactly this or not. Obviously, performance is also somewhat key here. Anything running on the gateway should not drag it down doing traffic accounting. Thanks for any thoughts. Tony Zakula

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  • Single computer on network cannot connect to internet.

    - by user34630
    Hi All, I hope you can help me out! :) I have 3 computers and one device (Xbox) on my home network; 2 running XP and one on Vista. The computer that can't connect to the internet (XP) is old and failing, and shows no warning before it completely runs out of battery. Thus today, I started it up forgetting that I had unplugged it the night before, and it just ran out of battery entirely whilst I was using it and died. I think that before this I had been browsing the internet, but I can't remember for certain. (i.e. The problem I am having may or may not have been caused by this 'hard' power off). Anyway, now when I start the computer up it takes 5-10 minutes after logging on to display the start bar and icons. Also, I cannot browse the internet. The computer seems to connect to the network OK (I have tried both wired and wireless), but I can't visit sites and can't ping web addresses. Pinging the router fails, as does pinging another of my computers on the network. I have never encountered something like this before, and whilst I am no noob I am also not a sysadmin, haha. :( Any help is greatly appreciated, thank you for your time. P.S. I have tried a system restore (newbie move?).

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  • Iptables: "-p udp --state ESTABLISHED"

    - by chris_l
    Hi, let's look at these two iptables rules which are often used to allow outgoing DNS: iptables -A OUTPUT -p udp --sport 1024:65535 --dport 53 -m state --state NEW,ESTABLISHED -j ACCEPT iptables -A INPUT -p udp --sport 53 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT My question is: How exactly should I understand the ESTABLISHED state in UDP? UDP is stateless. Here is my intuition - I'd like to know, if or where this is incorrect: The man page tells me this: state This module, when combined with connection tracking, allows access to the connection tracking state for this packet. --state ... So, iptables basically remembers the port number that was used for the outgoing packet (what else could it remember for a UDP packet?), and then allows the first incoming packet that is sent back within a short timeframe? An attacker would have to guess the port number (would that really be too hard?) About avoiding conflicts: The kernel keeps track of which ports are blocked (either by other services, or by previous outgoing UDP packets), so that these ports will not be used for new outgoing DNS packets within the timeframe? (What would happen, if I accidentally tried to start a service on that port within the timeframe - would that attempt be denied/blocked?) Please find all errors in the above text :-) Thanks, Chris

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