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  • Small Business Server services will not start, and remote desktop and UAC are broken

    - by Stephen Jennings
    Yesterday I began setting up a server with Windows Small Business Server 2008. All I am configuring it for right now is to be a domain controller and Exchange server. I completed the initial setup of SBS then started looking through different connection options (allowing VPN versus using a TS Gateway). After I rebooted one time, I started having three not-obviously-related issues: First, I could no longer remote desktop into the computer. I ran TCPView and saw that it was no longer listening on port 3389. I checked everything in Terminal Service Configuration but everything shows the computer ought to be allowing connections. Also, when I tried to use anything that required user account control elevation, the UAC dialog never popped up and the program that was waiting just froze. If I try to run "regedit" from the Run box, for example, it never appears. When I run in safe mode which does not run with UAC, I was able to access everything. I didn't want to deal with it, so I turned off UAC and rebooted. Finally, in the Windows SBS Console, there are status indicators for Security, Updates, Backup, and Other Alerts. The first three get stuck saying "Querying". Looking in the computer alerts, I have events showing the following services stopped: Background Intelligent Transfer Service KtmRm for Distributed Transaction Coordinator Distributed Transaction Coordinator Microsoft Exchange Information Store Microsoft Exchange System Attendant Microsoft Exchange Transport Windows Remote Management Update Services Windows Update I figured I must have configured something wrong accidentally and I couldn't find anything using Google explaining what might be the case, so I just decided to format the hard drive and reinstall SBS from scratch. I did this and everything was working last night, but I just turned the machine back on and it is doing the same thing again! On my second install, I did not configure anything except the following (all from SBS Console): Connect to the Internet (set IP and router address) Turn off customer feedback. Set up internet address. Decline to use a Smart Host for email. Added one standard user account. Since this happened again and I was very careful the second time not to configure anything outside of the SBS Console, I feel like there's something else going on. Right now the machine is on an isolated network that does have internet access. My desktop is the only other machine plugged into this network. Any and all help is appreciated (before I tear my hair out!)

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  • Disable Acer eRecovery system

    - by Joel Coehoorn
    The meat of this question is that I'm looking for a way to either require a password before using a recovery partition or "break" the recovery partition (specifically, Acer eRecovery) in a way that I can later "unbreak" only by booting normally into windows first. Here's the full details: I have a set of new Acer Veriton n260g machines in a computer lab. A lot work went into setting up this lab to work well - for example, Office 2007 and other programs needed by the students were installed, all windows updates are applied, and a default desktop is setup. All in all it's several hours work to fully set up one machine. Unfortunately, I don't currently have the ability to easily image these machines, and even if I did I would want to avoid downtime even while an image is restored. Therefore, I've taken steps to lock them down — namely DeepFreeze and a bios password to prevent booting from anywhere but the frozen hard drive. DeepFreeze is an amazing product — as long as you boot from the frozen hard drive, there is no way to actually make permanent changes to that hard drive. Anything you do is wiped after the machine restarts. It lets me give students the leeway to do what they want on lab computers without worrying about them breaking something. The problem is that even with the bios locked and set to only boot from the hard drive, these Acers still have a simple way to choose a different boot source: shut them down and put a paper click in a little hole at the top while you turn it on again. This puts them into the "Acer eRecovery" mode. This by itself is no big deal — you can still power cycle with no impact. But if you then click through the menu to reset the machine (we're now past the point of curiosity and on to intent) it will wipe the hard drive and restore it to the original state. Of course, a few students have already figured this out and reset a couple machines. That's unfortunate, but inevitable. I don't want to destroy the ability to do this entirely (which I could by repartitioning the drives to remove the recovery partition) but I would like a way to require a password first, or "break" the recovery system in a way that I can "unbreak" only if I first un-freeze the hard drive in DeepFreeze. Any ideas?

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  • Ubuntu unattended-upgrades stops apache

    - by Robbie
    This morning i was alerted to the fact that both apache instances serving my app were not responding to requests from my load balancer. I attempted apachectl restart and it said apache was not running. So, i started apache on both instances and got the service up again. I then followed the logs and worked out that both had performed upgrades via the unattended-upgrades package moments before they stopped responding. /var/log/unattended-upgrades/unattended-upgrades.log 2013-07-02 06:30:51,875 INFO Starting unattended upgrades script 2013-07-02 06:30:51,875 INFO Allowed origins are: ['o=Ubuntu,a=precise-security'] 2013-07-02 06:33:57,771 INFO Packages that are upgraded: accountsservice apache2 apache2-mpm-prefork apache2-utils apache2.2-bin apache2.2-common apparmor apport apt apt-transport-https apt-utils bind9-host binutils dbus dnsutils gnupg gpgv isc-dhcp-client isc-dhcp-common krb5-locales libaccountsservice0 libapt-inst1.4 libapt-pkg4.12 libbind9-80 libc-bin libc-dev-bin libc6 libc6-dev libcurl3-gnutls libdbus-1-3 libdbus-glib-1-2 libdns81 libdrm-intel1 libdrm-nouveau1a libdrm-radeon1 libdrm2 libexpat1 libfreetype6 libgc1c2 libgnutls-dev libgnutls-openssl27 libgnutls26 libgnutlsxx27 libisc83 libisccc80 libisccfg82 liblwres80 libruby1.8 libx11-6 libx11-data libxcb1 libxext6 libxml2 linux-firmware linux-image-virtual linux-libc-dev linux-virtual multiarch-support openssl perl perl-base perl-modules python-apport python-crypto python-keyring python-problem-report python-software-properties ri1.8 ruby1.8 ruby1.8-dev sudo tzdata update-manager-core 2013-07-02 06:33:57,772 INFO Writing dpkg log to '/var/log/unattended-upgrades/unattended-upgrades-dpkg_2013-07-02_06:33:57.772399.log' 2013-07-02 06:36:10,584 INFO All upgrades installed I'm running Ubuntu 12.04 on Amazon EC2 servers. I have unattended-upgrades installed and configured as follows: /etc/apt/apt.conf.d/50unattended-upgrades // Automatically upgrade packages from these (origin:archive) pairs Unattended-Upgrade::Allowed-Origins { "${distro_id}:${distro_codename}-security"; // "${distro_id}:${distro_codename}-updates"; // "${distro_id}:${distro_codename}-proposed"; // "${distro_id}:${distro_codename}-backports"; }; // List of packages to not update Unattended-Upgrade::Package-Blacklist { }; /etc/apt/apt.conf.d/20auto-upgrades APT::Periodic::Update-Package-Lists "1"; APT::Periodic::Unattended-Upgrade "1"; I've struggled to find documentation about what happens to running processes during an upgrade. - Is this expected behaviour? Or should unattended-upgrades restart apache after upgrading it? - What can I do to ensure apache is restarted correctly? Should I just blacklist the apache package?

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  • Building NanoBSD inside a jail

    - by ptomli
    I'm trying to setup a jail to enable building a NanoBSD image. It's actually a jail on top of a NanoBSD install. The problem I have is that I'm unable to mount the md device in order to do the 'build image' part. Is it simply not possible to mount an md device inside a jail, or is there some other knob I need to twiddle? On the host /etc/rc.conf.local jail_enable="YES" jail_mount_enable="YES" jail_list="build" jail_set_hostname_allow="NO" jail_build_hostname="build.vm" jail_build_ip="192.168.0.100" jail_build_rootdir="/mnt/zpool0/jails/build/home" jail_build_devfs_enable="YES" jail_build_devfs_ruleset="devfsrules_jail_build" /etc/devfs.rules [devfsrules_jail_build=5] # nothing Inside the jail [root@build /usr/obj/nanobsd.PROLIANT_MICROSERVER]# sysctl security.jail security.jail.param.cpuset.id: 0 security.jail.param.host.hostid: 0 security.jail.param.host.hostuuid: 64 security.jail.param.host.domainname: 256 security.jail.param.host.hostname: 256 security.jail.param.children.max: 0 security.jail.param.children.cur: 0 security.jail.param.enforce_statfs: 0 security.jail.param.securelevel: 0 security.jail.param.path: 1024 security.jail.param.name: 256 security.jail.param.parent: 0 security.jail.param.jid: 0 security.jail.enforce_statfs: 1 security.jail.mount_allowed: 1 security.jail.chflags_allowed: 1 security.jail.allow_raw_sockets: 0 security.jail.sysvipc_allowed: 0 security.jail.socket_unixiproute_only: 1 security.jail.set_hostname_allowed: 0 security.jail.jail_max_af_ips: 255 security.jail.jailed: 1 [root@build /usr/obj/nanobsd.PROLIANT_MICROSERVER]# mdconfig -l md2 md0 md1 md0 and md1 are the ramdisks of the host. bsdlabel looks sensible [root@build /usr/obj/nanobsd.PROLIANT_MICROSERVER]# bsdlabel /dev/md2s1 # /dev/md2s1: 8 partitions: # size offset fstype [fsize bsize bps/cpg] a: 1012016 16 4.2BSD 0 0 0 c: 1012032 0 unused 0 0 # "raw" part, don't edit newfs runs ok [root@build /usr/obj/nanobsd.PROLIANT_MICROSERVER]# newfs -U /dev/md2s1a /dev/md2s1a: 494.1MB (1012016 sectors) block size 16384, fragment size 2048 using 4 cylinder groups of 123.55MB, 7907 blks, 15872 inodes. with soft updates super-block backups (for fsck -b #) at: 160, 253184, 506208, 759232 mount fails [root@build /usr/obj/nanobsd.PROLIANT_MICROSERVER]# mount /dev/md2s1a _.mnt/ mount: /dev/md2s1a : Operation not permitted UPDATE: One of my colleagues pointed out There are some file systems types that can't be securely mounted within a jail no matter what, like UFS, MSDOFS, EXTFS, XFS, REISERFS, NTFS, etc. because the user mounting it has access to raw storage and can corrupt it in a way that it will panic entire system. From http://www.mail-archive.com/[email protected]/msg160389.html So it seems that the standard nanobsd.sh won't run inside a jail while it uses the md device to build the image. One potential solution I'll try is to chroot from the host into the build jail, rather than jexec a shell.

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  • Blank displays after inactivity, mouse cursor not showing up

    - by Mike Christiansen
    I have a Windows 7 Enterprise x86 machine that is exhibiting some strange problems. After some inactivity (it varies how long it takes), when I come back to my computer, both of my monitors are black. The monitors are on, with a black display. Moving the mouse and pressing keys on the keyboard do not work. This happens at least once a day. When I first encountered the issue, I performed a hard shutdown and restarted the computer. About 10% of the time when I did this, the resolutions on my monitors were messed up. The native resolution on the primary monitor is 1600x900, and the native on my secondary is 1440x900. None of the widescreen resolutions would be present in the display properties. I had 800x600, 1024x768, and 1280x1024. As a workaround to this issue, I've found that if I plug in my secondary monitor as the primary monitor, and leave the secondary unplugged, then Windows will start in 1024x768 on the secondary. Then, I can use Windows 7's "Detect" feature and it finds the 1440x900 resolution, and sets it. Then I have to connect the primary monitor to the secondary port and set it as the primary. Then I can switch the two cables, putting the primary into the primary, the secondary into the secondary. Then use the "Detect" feature again, and it finds the correct resolutions. Some time after performing the above, I discovered that when the screens were blanked, I could simply press "Control+Alt+Delete", type in my password, and everything comes up fine - except my mouse cursor. All applications and features work as intended, except there is no mouse cursor (the mouse actually works though...). I have the "Show location of pointer when I press CTRL key" option selected, so I can press CTRL and use my mouse as normal - but I have no actual cursor. When the computer is in this state, UAC is also not functional. Whenever a UAC prompt appears, the screens go black (the original symptoms) and I have to press Escape to exit UAC. Because of the above symptoms (the UAC black screen thing, etc) I beleive winlogon.exe may be the culprit. However, I have no idea how to fix it. I am unable to restart winlogon.exe due to the problems I am having with winlogon.exe (the UAC black screen) Looking for any ideas.... More information Windows 7 x86 Enterprise Domain environment (I have a secondary account with administrator rights) Dell Optiplex 960 Cannot perform "optional" windows updates due to an activation issue (I am testing a windows 7 image, and an activation infrastructure has not been created yet. However, this issue was happening before I was unable to perform windows update, and windows was up to date at the time Updated video card driver (as an attempt to fixing the resolution issue) Disabled all power saving options Please let me know what else you need to help me solve this issue! Thanks in advance, Mike

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  • Crashes and freezes after fixing "BOOTMGR is missing" error

    - by Greg-J
    I came back from a 3-day weekend to a computer that was off. I leave my PC on 24/7, so this was odd. Turn it on to get the dreaded "BOOTMGR is missing" screen. Two attempts at Windows Recovery and it booted into Windows fine. After an hour or so, I get a frozen Chrome and my start bar disappears. Ctrl+Alt+Del brings up an error box telling me that Ctrl+Alt+Del failed to work properly. Clicking on any open application triggers an error (I can't recall the error now, but it essentially just said that the application couldn't be found running or something along those lines). I restart, and again, the same thing happens after a while of use. I turn it on, install the 47 updates I have or so, and then restart it. After a while of use (under an hour), it just freezes completely. My thoughts are: SSDs, RAM or PS. My system specs below: (RAID0) 2 x Crucial M4 CT128M4SSD2 2.5" 128GB SATA III MLC Internal Solid State Drive (SSD) CORSAIR Vengeance 16GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CML16GX3M4A1600C9 CORSAIR HX Series HX750 750W ATX12V 2.3 / EPS12V 2.91 SLI Ready CrossFire Ready 80 PLUS GOLD Certified Modular Active 1 x ASUS Maximus IV Gene-Z/GEN3 LGA 1155 Intel Z68 HDMI SATA 6Gb/s USB 3.0 Micro ATX Intel Motherboard 1 x Hitachi GST Deskstar 7K1000.C 0F10383 1TB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive 1 x Intel Core i7-2600K Sandy Bridge 3.4GHz (3.8GHz Turbo Boost) LGA 1155 95W Quad-Core Desktop Processor Intel HD Graphics 1 x SAPPHIRE 21197-00-40G Radeon HD 7970 3GB 384-bit GDDR5 PCI Express 3.0 x16 HDCP Ready CrossFireX Support Video Card 1 x Noctua NH-D14 120mm & 140mm SSO CPU Cooler This is all crammed in a pretty small case (NZXT Vulcan) and has been running perfectly problem-free since January. The only thing out of the ordinary is that there is a fan in the case that is now making noise whereas the case has previously been completely silent. I have no reason to believe this is anything more then correlation, but felt it is worth mentioning. I believe it MAY be the SSDs simply because of the BOOTMGR error, but not sure how to test that theory. My belief that it may be the RAM is simply from experience with frozen machines. I haven't had the time to memtest it, but will. The PS being the culprit is something I've picked up by reading similar threads on various forums, and it seems plausible. I am unsure how to test this though. ANY insight whatsover would be greatly appreciated!

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  • Fast user switching suddenly stopped working on my Windows XP Prof machine

    - by John
    When I start Win XP SP2 I get to the welcome screen with no user names displayed. I then press Alt+Ctrl+Del twice and type in the username and then am able to login to Windows. When I go to user accounts in Control Panel I get the error message cells.item(...) is null or not an object. When I go to computer administration and then local users and groups there are no users listed under users but the groups is listed. I did a windows repair with no luck. I tried doing restore points but it said they didn’t work. Please help? My wife and I have been using fast user switching on out computer for years with no problem. Beginning a few months ago, I started Win XP Prof one day I get to the welcome screen with no user names displayed. I then press Alt+Ctrl+Del twice and type in the username and then am able to login to Windows with an account of owner. When I go to user accounts in Control Panel I get the error message cells.item(...) is null or not an object. When I go to computer administration and then local users and groups there are no users listed under users but the groups are listed. I have done system point restores and imports of exports of the registry I take with import. I have tried everything under safe mode and it makes no difference. This followed a Microsoft update the night before as I left the computer on. I tried to do a restore point but all my restore points failed and could not backout the MS updates. I was working with a fellow from Microsoft and he had me do all kinds of things but to no avail. He seems to think a DLL file is corrupt but which one? Finally in desperation he sent me a new OS XP Prof SP3 disk and I installed it and it wiped my hard drive. Luckily I took an Acronis Image backup first so I easily restored my system. I do not want to do a fresh windows update as it is heavily customized and worked fine up to that point. This has been going on for months, Thanks John

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  • Windows cannot find the host name "download.microsoft.com" using DNS

    - by joedotnot
    When trying to download a file found on the Microsoft downloads center that starts with, for example, http://download.microsoft.com/download/6/8/7/(some_GUID)/(some_file_name.ext) i get a timeout with "Internet Explorer cannot display the webpage". More information says: Internet connectivity has been lost. The website is temporarily unavailable. The Domain Name Server (DNS) is not reachable. The Domain Name Server (DNS) does not have a listing for the website's domain. If this is an HTTPS (secure) address, click Tools, click Internet Options, click Advanced, and check to be sure the SSL and TLS protocols are enabled under the security section. Diagnose Connection problems says: Windows cannot find the host name "download.microsoft.com" using DNS Bear with me while i expand on the problem: It all started when i tried to download Windows XP mode for my Windows 7 machine. I went to the virtual PC site, then thru the motions of Windows Genuine Advantage which validated ok, but when it redirects to grab the file just times out with above error. (NB: i also tried with the latest Chrome and Firefox but no use due to the Genuine Advantage stuff, so i decided to stick with IE). I am behind an ADSL2+ modem router connecting via wireless (Win 7 Pro laptop); so i hop over to the desktop connected via ethernet (Vista Business), and same result; begin to think site download.microsoft.com site is down. So i give it a break an read up on EDNS, flushing the cache, hosts file, etc... Try again an hour later on the Win 7 machine, still no go; so i turn off the Win 7 (software) firewall, and lo and behold, i can connect and grab any files from download.microsoft.com; (...nice, so we have a Micro$0ft firewall preventing access to a Micro$0ft website, no wonder my auto-updates kept failing but that's another story). But i still am not happy that the desktop connected via ethernet still cannot get to download.microsoft.com, even though i turned off all firewalls, defenders, anti-virus, etc. What is so special / specific about the url download.microsoft.com, any other site is ok, including www.microsoft.com. Any networking guru know what's REALLY going on, and how can i get the desktop to connect? Ping download.microsoft.com - Ping request could not find host download.microsoft.com. Please check the name and try again. Ping google.com or even www.microsoft.com works gives me an IP address. NB: On the wireless laptop ping download.microsoft.com works, i get xxxx.ms.akamai.net [202.7.177.33].

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  • Why does Ubuntu 9.10 hang during boot at "Booting processor 1 APIC 0x1 ip 0x6000"?

    - by BraeburnDev
    I recently installed a new copy of Ubuntu 9.10 (Kernel 2.6.31-14) on to my Hp Pavilion dv6t, so I can setup a Linux development environment. The install went flawlessly and I proceeded with Ubuntu's udate manager's long list of updates (292 in all). I also setup a swap file and activated a Nvidia 185 driver for the Nvidia 260m GPU on the machine. After all this was done I restarted the computer and booted into Ubuntu this time with a newer 2.6.31-19 Kernel which was installed from the update manager. During booth the computer hung at this point: Feb 24 14:23:12 braeburn-laptop kernel: [ 0.013136] Performance Counters: Nehalem/Corei7 events, Intel PMU driver. Feb 24 14:23:12 braeburn-laptop kernel: [ 0.013141] ... version: 3 Feb 24 14:23:12 braeburn-laptop kernel: [ 0.013142] ... bit width: 48 Feb 24 14:23:12 braeburn-laptop kernel: [ 0.013144] ... generic counters: 4 Feb 24 14:23:12 braeburn-laptop kernel: [ 0.013146] ... value mask: 0000ffffffffffff Feb 24 14:23:12 braeburn-laptop kernel: [ 0.013147] ... max period: 000000007fffffff Feb 24 14:23:12 braeburn-laptop kernel: [ 0.013149] ... fixed-purpose counters: 3 Feb 24 14:23:12 braeburn-laptop kernel: [ 0.013151] ... counter mask: 000000070000000f Feb 24 14:23:12 braeburn-laptop kernel: [ 0.015539] ACPI: Core revision 20090521 Feb 24 14:23:12 braeburn-laptop kernel: [ 0.052264] Setting APIC routing to flat Feb 24 14:23:12 braeburn-laptop kernel: [ 0.052639] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 Feb 24 14:23:12 braeburn-laptop kernel: [ 0.152580] CPU0: Intel(R) Core(TM) i7 CPU Q 720 @ 1.60GHz stepping 05 Feb 24 14:23:12 braeburn-laptop kernel: [ 0.270845] Booting processor 1 APIC 0x1 ip 0x6000 I can post a full kern.log of this boot process if requested. Hopefully this is enough information to go on. I should add that I'm still new to configuring and running a Linux OS although I know enough basic command line usage to do software development. This is my attempt to become more familiar with Linux and manage my own system. I'd like to get some insight on the nature of this system hang, what the problem is and how to resolve it. At this point I can scrap the install if I broke something, but my intuition says this is an issue with the kernel recognizing the correct hardware configuration for my system, or perhaps this is an issue with the APIC drivers managing Nehalem's new power management capabilities? Thanks for looking at this issue and providing feed back.

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  • Custom built machine has much higher power consumption than expected

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

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  • "Error loading operating system": Win7/Vista

    - by LookitsPuck
    Hey fellas, Have this computer for about 2 years now. Originally had Vista installed, now have Windows 7 installed. Both on separate hard drives. Also have another drive used strictly for media. About a week ago, the Vista hard drive started going on its way out. Was getting problems on startup. After a few BIOS settings, I was able to get into Windows 7 and everything was fine. However, I started remembering the startup issues, so I deleted the bootup for Vista under msconfig. Didn't restart the computer at that time, though. For a few days, everything was ok. Last night I play a little poker, then hit the hay. I wake up to a good ole "Error loading operating system" on the screen. Just wonderful. Looks like the computer restarted overnight (auto updates, anyone?). So, after a big of finagling and half hearted tries, I can't get past the "Error loading operating system" screen. FWIW, in the BIOS it can see my hard drives fine. So I move on. I get my Windows 7 installation disk to try and do a repair. Go in the BIOS, change boot priority to DVD drive, and we're on our merry way. After loading from the disc, I first try jumping into the "Repair your computer" section. That opens up the System Recovery Options. However, this is where the problem comes into play. I don't see any operating systems here. Nada. What's odd though is if I click on the Load Drivers button, I can see my Windows 7 partition (C:), and can go through the files and folders without issue. What do I do at this point? I can't repair it. It seems like I can traverse the hard drive without issue when in an open dialog in the System Recovery Options, but I'm getting the good ole "Error loading computer" on bootup. Suggestions? Thanks all!!

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  • Why MySQL sat for 2 minutes doing nothing?

    - by Alex R
    This was a one-time thing, not reproducible... But I saved the show innodb status output. Can anybody tell what's going on here? The simple insert took almost 3 minutes to complete. | InnoDB | | ===================================== 110201 15:58:10 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 34 seconds ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 11963, signal count 11766 --Thread 1824 has waited at .\btr\btr0cur.c line 443 for 118.00 seconds the sema phore: S-lock on RW-latch at 09D6453C created in file .\buf\buf0buf.c line 550 a writer (thread id 1824) has reserved it in mode wait exclusive number of readers 1, waiters flag 1 Last time read locked in file .\buf\buf0flu.c line 599 Last time write locked in file .\btr\btr0cur.c line 443 Mutex spin waits 0, rounds 527817, OS waits 7133 RW-shared spins 2532, OS waits 1226; RW-excl spins 1652, OS waits 1118 ------------ TRANSACTIONS ------------ Trx id counter 0 95830 Purge done for trx's n:o < 0 95814 undo n:o < 0 0 History list length 11 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 0 0, not started, OS thread id 3704 MySQL thread id 551, query id 2702112 localhost 127.0.0.1 root show innodb status ---TRANSACTION 0 95829, not started, OS thread id 3132 MySQL thread id 534, query id 2702020 localhost 127.0.0.1 root ---TRANSACTION 0 95828, not started, OS thread id 3152 MySQL thread id 527, query id 2701973 localhost 127.0.0.1 root ---TRANSACTION 0 95827, ACTIVE 118 sec, OS thread id 1824 inserting, thread decl ared inside InnoDB 500 mysql tables in use 1, locked 1 1 lock struct(s), heap size 320, 0 row lock(s) MySQL thread id 526, query id 2701972 localhost 127.0.0.1 root update INSERT INTO log_searchcriteria (userid,search_criteria,date,search_type) VALUES ( NAME_CONST('userid',NULL), NAME_CONST('search_criteria',_latin1' SELECT SQL_C ALC_FOUND_ROWS idx_search.CTCX_LATITUDE, idx_search.CTCX_LONGITUDE, idx_search.b uilding_id, idx_search.LN_LIST_NUMBER, idx_search.LP_LIST_PRICE, idx_search.HSN_ ADRESS_HOUSE_NUMBER, idx_search.STR_ADDRESS_STREET, idx_search.CP_ADDRESS_COMPAS S_POINT, idx_search.UN_UNIT, idx_search.CIT_CITY, idx_search.ZP_ZIP_CODE, idx_se arch.AR_AREA_NAME, idx_search.BR_BEDROOMS, idx_search.BTH_BATHS, idx_search.ST_S TATUS, idx_search.CTCX_STYLE_TYPE, idx_s -------- FILE I/O -------- I/O thread 0 state: wait Windows aio (insert buffer thread) I/O thread 1 state: wait Windows aio (log thread) I/O thread 2 state: wait Windows aio (read thread) I/O thread 3 state: wait Windows aio (write thread) Pending normal aio reads: 0, aio writes: 1, ibuf aio reads: 0, log i/o's: 0, sync i/o's: 0 Pending flushes (fsync) log: 0; buffer pool: 0 151006 OS file reads, 120758 OS file writes, 6844 OS fsyncs 0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 fsyncs/s ------------------------------------- INSERT BUFFER AND ADAPTIVE HASH INDEX ------------------------------------- Ibuf: size 1, free list len 5, seg size 7, 24664 inserts, 24664 merged recs, 4612 merges Hash table size 553253, node heap has 629 buffer(s) 0.00 hash searches/s, 0.00 non-hash searches/s --- LOG --- Log sequence number 5 2318193115 Log flushed up to 5 2318193115 Last checkpoint at 5 2318129891 0 pending log writes, 0 pending chkp writes 3036 log i/o's done, 0.00 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total memory allocated 213459462; in additional pool allocated 1720192 Dictionary memory allocated 240416 Buffer pool size 8192 Free buffers 0 Database pages 7563 Modified db pages 18 Pending reads 0 Pending writes: LRU 0, flush list 18, single page 0 Pages read 150973, created 28788, written 115137 0.00 reads/s, 0.00 creates/s, 0.00 writes/s No buffer pool page gets since the last printout -------------- ROW OPERATIONS -------------- 1 queries inside InnoDB, 0 queries in queue 1 read views open inside InnoDB Main thread id 2992, state: flushing buffer pool pages Number of rows inserted 794294, updated 89203, deleted 13698, read 1453084305 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================ Thanks

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  • Do RAID controllers commonly have SATA drive brand compatibility issues?

    - by Jeff Atwood
    We've struggled with the RAID controller in our database server, a Lenovo ThinkServer RD120. It is a rebranded Adaptec that Lenovo / IBM dubs the ServeRAID 8k. We have patched this ServeRAID 8k up to the very latest and greatest: RAID bios version RAID backplane bios version Windows Server 2008 driver This RAID controller has had multiple critical BIOS updates even in the short 4 month time we've owned it, and the change history is just.. well, scary. We've tried both write-back and write-through strategies on the logical RAID drives. We still get intermittent I/O errors under heavy disk activity. They are not common, but serious when they happen, as they cause SQL Server 2008 I/O timeouts and sometimes failure of SQL connection pools. We were at the end of our rope troubleshooting this problem. Short of hardcore stuff like replacing the entire server, or replacing the RAID hardware, we were getting desperate. When I first got the server, I had a problem where drive bay #6 wasn't recognized. Switching out hard drives to a different brand, strangely, fixed this -- and updating the RAID BIOS (for the first of many times) fixed it permanently, so I was able to use the original "incompatible" drive in bay 6. On a hunch, I began to assume that the Western Digital SATA hard drives I chose were somehow incompatible with the ServeRAID 8k controller. Buying 6 new hard drives was one of the cheaper options on the table, so I went for 6 Hitachi (aka IBM, aka Lenovo) hard drives under the theory that an IBM/Lenovo RAID controller is more likely to work with the drives it's typically sold with. Looks like that hunch paid off -- we've been through three of our heaviest load days (mon,tue,wed) without a single I/O error of any kind. Prior to this we regularly had at least one I/O "event" in this time frame. It sure looks like switching brands of hard drive has fixed our intermittent RAID I/O problems! While I understand that IBM/Lenovo probably tests their RAID controller exclusively with their own brand of hard drives, I'm disturbed that a RAID controller would have such subtle I/O problems with particular brands of hard drives. So my question is, is this sort of SATA drive incompatibility common with RAID controllers? Are there some brands of drives that work better than others, or are "validated" against particular RAID controller? I had sort of assumed that all commodity SATA hard drives were alike and would work reasonably well in any given RAID controller (of sufficient quality).

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  • Windows Server 2008 Migration - Did I miss something?

    - by DevNULL
    I'm running in to a few complications in my migration process. My main role has been a Linux / Sun administrator for 15 yrs so Windows server 2008 environment is a bit new to me, but understandable. Here's our situation and reason for migrating... We have a group of developers that develop VERY low-level software in Visual C with some inline assembler. All the workstations were separate from each other which cased consistency problems with development libraries, versions, etc... Our goal was to throw them all on to a Windows domain were we can control workstation installations, hot fixes (which can cause enormous problems), software versions, etc... All Development Workstations are running Windows XP x32 (sp3) and x64 (sp2) I running in to user permission problems and I was wondering maybe I missed one, tWO or a handful of things during my deployment. Here is what I have currently done: Installed and Activated Windows Server 2008 Added Roles for DNS and Active Directory Configured DNS with WINS for netbios name usage Added developers to AD and mapped their shared folders to their profile Added roles for IIS7 and configured the developers SVN Installed MySQL Enterprise Edition for development usage Not having a firm understanding of Group Policy I haven't delved deeply in to that realm yet. Problems I'm encountering: 1. When I configure any XP workstations to logon our domain, once a user uses their new AD login, everything goes well, except they have very restrictive permissions. (Eg: If a user opens any existing file, they don't have write access, except in their documents folder.) Since these guys are working on low system level events, they need to r/w all files. All I'm looking to restrict in software installations. Am I correct to assume that I can use WSUS to maintain the domains hot fixes and updates pushed to the workstations? I need to map a centralized shared development drive upon the users login. This is open to EVERYONE. Right now I have the users folders mapped upon login through their AD profile. But how do I map a share if I've already defined one within their profile in AD? Any responses would be very grateful. Do I have to configure and define a group policy for the domain users? Can I use Volume Mirroring to mirror / sync two drives on two separate servers or should I just script a rsync or MS Synctool? The drives simply store nightly system images.

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  • WinPE, Startnet.CMD and passing variables to second batch file not working

    - by user140892
    I don't know scripting or PowerShell (yes I need to learn something). I'm not an expert batch file maker either. I have a WinPE flash drive which I used to deploy OS images. I have the WIM, drivers and anything needed else outside the WinPE environment to ensure that Updates, changes are easier for me to make. I use the "STARTNET.CMD" batch file which is part of the WinPE. The reason to go through the letter drives is that the WinPE always gets the X letter drive assigned. The flash drive itself can receive a random letter which always changes. My deployment menu is located on the flash drive it self and not inside the WinPE. This is so that if I need to make a change I don't have to re-do the WinPE. I am able to locate the "menu.bat" batch file and launch it. I use a variable to capture the letter drive. I call the second batch file named "menu.bat" and pass the variable to it. When the second batch file loads, I believe that I am calling the variable correctly. If I break out of the batch file I can echo the variable and see the expected reply. The issue is that I can't use the variable to work with anything on the second batch file. In my test, I can get this to work over and over. When it runs from the real USB flash drive it does not work. I removed comments from the second batch file to make it smaller. My issue is that files below all get a message stating that the system cannot find the path specified. Diskpart Imagex.exe bcdboot.exe Why can't I get the varible to properly function when I try to using example "ImageX.exe"? Contents of the Startnet.cmd @echo off for %%p in (a b c d e f g h i j k l m n o p q r s t u v w x y z) do if exist %%p:\Tools\ set w=%%p Set execpatch=%w%\Tools\ call %w%:\Menu.bat \Tools\ Contents of the Menu.BAT @echo off set SecondPath=%1 cls :Start cls Echo. Echo.============================================================== Echo. Windows 7 64 Bit Ent Basic Desktops Echo.============================================================== Echo. Echo A. 790 Windows 7 - Basic Echo. Echo. Echo I. Exit Echo. Echo. set /p choice=Choose your option = if not '%choice%'=='' set choice=%choice:~0,1% if '%choice%'=='a' goto 790_Windows_7_Basic echo "%choice%" is not a valid (answer/command) echo. goto start :790_Windows_7_Basic REM DISKPART /s %SecondPath%BatchFiles\Make-Partition.txt %SecondPath%imagex.exe /apply %SecondPath%Images\Win7-64b-Ent-Basic-SysPreped.wim 1 o:\ /verify %SecondPath%bcdboot.exe o:\Windows /s S: Copy %SecondPath%Unattended\unattend.XML o:\Windows\System32\sysprep\unattend.XML /y xcopy %SecondPath%Drivers\790\*.* o:\Windows\INF\790\ /E /Q /Y MD o:\Windows\Setup\Scripts\ Copy %SecondPath%BatchFiles\SetupComplete.cmd o:\Windows\Setup\Scripts\ /y Goto Done :Done Exit

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  • PCI-DSS compliance for business with only swipe terminals [migrated]

    - by rowatt
    I support the IT infrastructure for a small retail business which is now required to undergo a PCI-DSS assessment. The payment service and terminal provider (Streamline) has asked that we use Trustwave to do the PCI-DSS certification. The problem I face is that if I answer all questions and follow Trustwave's requirements to the letter, we will have to invest significantly in networking equipment to segment LANs and /or do internal vulnerability scanning, while at the same time Streamline assures me that the terminals we have (Verifone VX670-B and MagIC3 X-8) are secure, don't store any credit card information and are PCI-DSS compliant so by implication we don't need to take any action to ensure their network security. I'm looking for any suggestions as to how we can most easily meet the networking requirements for PCI-DSS. Some background on our current network setup: single wired LAN, also with WiFi turned on (though if this creates any PCI-DSS complexities we can turn it off). single Netgear ADSL router. This is the only firewall we have in place, and the firewall is out the box configuration (i.e. no DMZ, SNMP etc). Passwords have been changed though :-) a few windows PCs and 2 windows based tills, none of which ever see any credit card information at all. two swipe terminals. Until a few months ago (before we were told we had to be PCI-DSS certified) these terminals did auth/capture over the phone. Streamline suggested we moved to their IP Broadband service, which instead uses an SSL encrypted channel over the internet to do auth/capture, so we now use that service. We don't do any ecommerce or receive payments over the internet. All transactions are either cardholder present, or MOTO with details given over phone and typed direct into terminal. We're based in the UK. As I currently understand it we have three options in order to get PCI-DSS certification. segment our network so the POS terminals are isolated from all PCs, and set up internal vulnerability scanning on that network. don't segment the network, and have to do more internal scanning and have more onerous management of PCs than I think we need (for example, though the tills are Windows based, they are fully managed so I have no control over software update policies, anti virus etc). All PCs have anti virus (MSE) and windows updates automatically applied, but we don't have any centralised go back to auth/capture over phone lines. I can't imagine we are the first merchant to be in this situation. I'm looking for any recommendations a simple, cost effective way to be PCI-DSS compliant - either by doing 1 or 2 above with (hopefully) simple and inexpensive equipment/software, or any other ways if there's a better way to do this. Or... should we just go back to the digital stone age and do auth/capture over the phone, which means we don't need to do anything on our network to be PCI-DSS certified?

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  • Can't get DHCPd to assign IPs to unknown clients

    - by Jakobud
    I'm using Webmin to admin our DHCPd server. But I'm having a hard time getting it to assign IP addresses to unknown clients. The only way I can get it to assign an IP is to make sure a host is added to DHCPd as a host so that it gets a static-lease IP assigned to it. I thought "Allow Unknown Clients" was the key, but it still isn't assigning IPs to unknown clients. I have a pool setup so that the unknown clients should get an IP between 10.20.0.200 - 10.20.0.249. Here is the config file. What am I missing here? allow unknown-clients; # Primary DHCP server config authoritative; ddns-update-style none; failover peer "dhcp-failover" { primary; address 10.20.0.30; port 647; peer address 10.20.0.25; peer port 647; max-response-delay 60; max-unacked-updates 10; load balance max seconds 3; mclt 3600; split 128; } subnet 10.20.0.0 netmask 255.255.255.0 { allow unknown-clients; option subnet-mask 255.255.255.0; option broadcast-address 10.20.0.255; option routers 10.20.0.100; option domain-name "ourdomain.com"; option domain-name-servers 192.168.10.20; default-lease-time 86400; max-lease-time 86400; option ntp-servers 192.168.10.20; option time-offset -25200; pool { allow unknown-clients; failover peer "dhcp-failover"; max-lease-time 86400; range 10.20.0.200 10.20.0.249; deny dynamic bootp clients; } host Server-myserver { option host-name "whatever.ourdomain.com"; hardware ethernet 00:89:D4:35:4F:13; fixed-address 10.20.0.23; } }

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  • DNS settings for resolving Host name to IP not working?

    - by Hasas Ali Khan
    I want to access my IIS hosted application over LAN. First I installed a DNS server. The DNS configuration steps are: Go to DNS Manager - right click on System Name - click on configure a DNS Server. DNS Server wizard open -, click on next button - Select radio button "forward lookup zone" click on next button. In the second window. click on radio button "The server maintains the zone" and then click next. Give the zone name "example.com" Click on radio button, "Do Not allow dynamic updates". and then click next button. In the next window, click on radio button "No it should not forward query" and then click next button. Complete the configure a DNS server wizard and then click on finish button. After it is managing the DNS records: In DNS server wizard. open tree of forward lookup zone and right click on the new zone name "example.com" - properties and click on "Start of authority" and write values on text boxes serial number=1 primary server=systemname.domainname responsible person=hostmaster.domainname Click on server name, highlight domain name, click on edit button and enter IP address of the server where I host my application. Highlight new zone name and right click on it and click "New Host" option. In this window there are three text boxes: Name(user parent name if blank)=scoring Fully Qualified Domain Name=scoring.example.com IP Address= My IP Address and check on "Create associated pointer(PTR) record" and click on "Add Host" Host button and then click done button. I have host header for my application is "scoring" on port 80 and its working fine on server my application setting are I have change its, Advance setting --> Application Pool Identity --> Local System application can access on server with host name "scoring" but it can not access on machines on LAN. When I change LAN machine host file that is under, C:/windows/system32/driver/etc/host and edit it and enter host name with hosted machine IP like this: scoring 192.168.1.20 By making these changes I can run the application over LAN machines as I mentioned above DNS setting by which I can run App over LAN with out editing the client's host file. What mistake am I doing in this configuration?

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  • Good maintained privacy Add-On/settings set that takes usability into account?

    - by Foo Bar
    For some weeks I've been trying to find a good set of Firefox Addons that give me a good portion of privacy/security without losing to much of usability. But I can't seem to find a nice combination of add-ons/settings that I'm happy with. Here's what I tried, together with the pros and cons that I discovered: HTTPS Everywhere: Has only pro's: just install and be happy (no interaction needed), loads known pages SLL-encrypted, is updated fairly often NoScript - Fine, but needs a lot of fine-tuning, often maintained, mainly blocks all non-HTML/CSS Content, but the author sometimes seems to do "untrustworthy" decission RequestPolicy - seems dead (last activity 6 months ago, has some annoying bugs, official support mail address is dead), but the purpose of this is really great: gives you full control over cross-site requests: blocks by default, let's you add sites to a whitelist, once this is done it works interaction-less in the background AdBlock Edge: blocks specific cross-site requests from a pre-defined whitelist (can never be fully sure, need to trust others) Disconnect: like AdBlock Edge, just looking different, has no interaction possibilities (can never be fully sure, need to trust others, can not interact even if I wanted to) Firefox own Cookie Managment (block by default, whitelist specific sites), after building own whitelist it does it's work in the background and I have full control All These addons together basically block everything unsecure. But there are a lot of redundancies: NoScript has a mixed-content blocker, but FF has it's own for a while now. Also the Cookie blocker from NoScript is reduntant to my FF-Cookie setting. NoScript also has an XSS-blocker, which is redundant to RequestPolicy. Disconnect and AdBlock are extremly redundant, but not fully. And there are some bugs (especially RequestPolicy). And RequestPolicy seems to be dead. All in all, this list is great but has these heavy drawbacks. My favourite set would be "NoScript Light" (only script blocking, without all the additonal redundant-to-other-addons hick-hack it does) + HTTPS Everywhere + RequestPolicy-clone (maintained, less buggy), because RequestPolicy makes all other "site-blockers" obsolete (because it blocks everything by default and let's me create a whitelist). But since RequestPolicy is buggy and seems to be dead I have to fallback to AdBlock Edge and Disconnect, which don't block all and and need more maintaining (whitelist updates, trust-check). Are there addons that fulfill my wishes?

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  • Missing startup screens and slow bootup/login after using WinClone to expand Bootcamp partition

    - by user26453
    I used WinClone to backup my Bootcamp partition, which was a Windows 7 Ultimate install, on my late 2006 Macbook Pro. I desired to expand the Bootcamp partition's size. It worked reasonably well with some hiccups along the way and some remaining issues. First issue I ran into was the Bootcamp Assistant utility - it would not recreate the partition. This was due to a lack of contiguous space that is required for the Bootcamp partition. As a result I wiped the whole drive and reinstalled Snow Leopard, did the minimum amount of system updates, and created and formated a new Bootcamp partition. WinClone restored the image without complaint and the image was automatically resized to the new partition's size. Second issue I ran into was after the first boot into Windows. The first thing I noticed was that instead of the newer "slick" startup screen (4 colors wisping around, a Windows 7 title), there was more of an old school style startup screen (a progress bar with block increments, yellow/greenish color, nothing else really). The initial bootup to a login screen was slow, perhaps as Windows dealt with the partition changes. After logging in, the screen goes blank and the computer seems to hang for a minute, before completing the login. After subsequent restarts, the slick screen is still missing, boot to login screen is normal, but the time from login to desktop active is still very slow. As a side note, this behavior of a long time from login to the desktop finally loaded I've previously only seen when the computer would try to hibernate and fail (battery is really bad). On the next startup, I would see this behavior, but not subsequently. So a potential cause: I imaged the partition after hibernating out of Windows. From reading some posts/guides on the subject, this was not recommended, and perhaps shouldn't even have worked? Could the partition be stuck in some weird mode as a result that makes the boot issues appear? I've attempted to disable hibernation and restart, trying to delete the .sys file that hibernation uses. Other fixes I'm thinking of attempting are booting a Win7 disc and repairing the install/partition. I can't shake the nagging feeling something isn't right as a result of the modified boot screens and the slow login process.

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  • Using IIS7 why are my PNGs being cached by the browser, but my JS and CSS files not?

    - by Craig Shearer
    I am trying to sort out caching in IIS for my site. Basically, I want nothing cached, except for .png, .js, and .css files. At my site level, I opened the HTTP Reponse Headers and used the "Set Common Hedaers..." to set content to expire immediately. I have no Output Caching profiles set at any level in IIS. I clear my browser cache then try accessing my site. When my site requests a PNG file, I see responses like: Accept-Ranges bytes Age 0 Connection Keep-Alive Content-Type image/png Date Thu, 12 Apr 2012 21:55:15 GMT Etag "83b7322de318cd1:0" Last-Modified Thu, 12 Apr 2012 19:33:45 GMT Server Microsoft-IIS/7.5 X-Powered-By ASP.NET For JS and CSS files, I see responses like: Accept-Ranges bytes Cache-Control no-cache Connection Keep-Alive Content-Encoding gzip Content-Length 597 Content-Type text/css Date Thu, 12 Apr 2012 21:55:15 GMT Etag "06e45ede15bca1:0" Last-Modified Mon, 02 Nov 2009 17:28:44 GMT Server Microsoft-IIS/7.5 Vary Accept-Encoding X-Powered-By ASP.NET Accept-Ranges bytes Cache-Control no-cache Connection Keep-Alive Content-Encoding gzip Content-Length 42060 Content-Type application/x-javascript Date Thu, 12 Apr 2012 21:55:14 GMT Etag "2356302de318cd1:0" Last-Modified Thu, 12 Apr 2012 19:33:45 GMT Server Microsoft-IIS/7.5 Vary Accept-Encoding X-Powered-By ASP.NET So, why are my PNGs able to be cached, but JS and CSS files not? Then, I go into the Output Caching feature in IIS and set up profiles for .png, .css, and .js files. This updates the web.config file as follows: <caching> <profiles> <add extension=".png" policy="CacheUntilChange" kernelCachePolicy="DontCache" /> <add extension=".css" policy="CacheUntilChange" kernelCachePolicy="DontCache" /> <add extension=".js" policy="CacheUntilChange" kernelCachePolicy="DontCache" /> </profiles> </caching> I do a "precautionary" IISReset then try accessing my site again. For PNG files, I see the following response: Accept-Ranges bytes Age 0 Connection Keep-Alive Content-Length 3833 Content-Type image/png Date Thu, 12 Apr 2012 22:02:30 GMT Etag "0548c9e2c5dc81:0" Last-Modified Tue, 22 Jan 2008 19:26:00 GMT Server Microsoft-IIS/7.5 X-Powered-By ASP.NET For CSS and JS files, I see the following responses: Accept-Ranges bytes Cache-Control no-cache,no-cache Connection Keep-Alive Content-Encoding gzip Content-Length 2680 Content-Type application/x-javascript Date Thu, 12 Apr 2012 22:02:29 GMT Etag "0f743af9015c81:0" Last-Modified Tue, 23 Oct 2007 16:20:54 GMT Server Microsoft-IIS/7.5 Vary Accept-Encoding X-Powered-By ASP.NET Accept-Ranges bytes Cache-Control no-cache,no-cache Connection Keep-Alive Content-Encoding gzip Content-Length 3831 Content-Type text/css Date Thu, 12 Apr 2012 22:02:29 GMT Etag "c3f42d2de318cd1:0" Last-Modified Thu, 12 Apr 2012 19:33:45 GMT Server Microsoft-IIS/7.5 Vary Accept-Encoding X-Powered-By ASP.NET What am I doing wrong? Have I completely misunderstood the features of IIS, or is there a bug. Most importantly, how do I achieve what I want - that is get the browser to cache only PNG, JS and CSS files?

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  • Problem with USB drivers (Windows-XP)

    - by Carl
    I obtained the drivers from the manufacturer for my HT-Link NEC USB 2.0 2-port Cardbus card. When I plugged in the card before I got the drivers, 3 new entries showed up in the Device Manager - two "NEC PCI to USB Open Host Controller" and one "Standard Enhanced PCI to USB Host controller." With the card plugged in, I uninstalled those two drivers. I then removed the card. I copied the new drivers to c:\windows\system32\drivers and the .inf file to c:\windows\inf. I also copied the drivers & inf to a new directory called c:\windows\drivers\ousb2. I reinserted the card. Windows automatically installed the same drivers as before. I selected 'update driver' on the "NEC PCI to USB..." entry and didn't see any other options. I then selected 'have disk' and pointed to c:\windows\drivers\ousb2 and got a message "The specified location does not contain information about your hardware." I then selected 'update driver' on the "Standard Enhanced PCI to USB...," and manually selected "USB 2.0 Enhanced Host Controller" (OWC 4/15/2003 2.1.3.1). Windows then automatically found a USB root hub, and I manually selected "USB 2.0 Root Hub Device" (OWC 4/15/2003 2.1.3.1). Now there are two sections in the Device Manager titled "Universal Serial Bus controllers." I plugged in my external USB hard disk adapter, and "USB Mass Storage Device" was added to the first set. Here's how it looks (w/drivers from the properties): [Universal Serial Bus controllers] Intel(R) 82801DB/DBM USB 2.0 Enhanced Host Controller - 24CD (6/1/2002 5.1.2600.0) Intel(R) 82801DB/DBM USB Universal Host Controller - 24C2 (7/1/2001 5.1.2600.5512) Intel(R) 82801DB/DBM USB Universal Host Controller - 24C4 (7/1/2001 5.1.2600.5512) Intel(R) 82801DB/DBM USB Universal Host Controller - 24C7 (7/1/2001 5.1.2600.5512) NEC PCI to USB Open Host Controller (7/1/2001 5.1.2600.5512) NEC PCI to USB Open Host Controller (7/1/2001 5.1.2600.5512) USB Mass Storage Device USB Root Hub (7/1/2001 5.1.2600.5512) (5 more USB Root Hubs - same driver) [Universal Serial Bus controllers] USB 2.0 Enhanced Host Controller (OWC 4/15/2003 2.1.3.1) USB 2.0 Root Hub Device (OWC 4/15/2003 2.1.3.1) When I unplug the card the two "NEC PCI to USB..." entries in the first set disappear, and the whole second set disappears. (I unplugged the hard disk adapter first...) The hard disk adapter still doesn't work in that Cardbus card with the new drivers. I don't think the above looks right - a second set of USB controllers listed in the Device Manager, and the NEC entries still in the first set, and the the USB mass storage device still in the first set. Any help appreciated. (Windows XP PRO SP3 w/all current updates.)

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  • VirtualBox - multiple guests, each with a single bridged adapter?

    - by Martin
    I am running a dedicated server (located at Hetzner, Germany) that runs VirtualBox in order to virtualize several services accross multiple virtual guests. Those guests are supposed to communicate with each other (for instance, a virtual web server has to access a virtual database server); to be reachable from the dedicated server (for instance, SSH access); and to access the Internet via the dedicated server (for instance, to download security updates) Currently, this is achieved by having host-only adapter vboxnet0 on the dedicated server and two virtual interfaces on each guest. There, virtual adapter eth0 is attached to vboxnet0 (to achieve (1) and (2)), virtual adapter eth1 is attached to VirtualBox' NAT (to achieve (3)). Via eth0, the guests have access to a DHCP and a DNS server, both running on the dedicated server (there, bound to vboxnet0). This allows me to assign custom IP addresses and names. Via eth1, VirtualBox pushes a proper route that enables each guest to access the Internet (via eth0 on the dedicated server). This setup with two virtual adapters frequently leads to problems and at leasts complicates many things. For instance, on the dedicated server there is OpenVPN which allows to access the virtual machines via the Internet; futhermore, there is Shorwall that controls the incoming and outgoing network traffic between the Internet, the dedicated server, and the individual virtual machines. Not to mention automatic installation of servers via PXE... Therefore, I would prefer to have only one single virtual adapter on each guest which would be used for both incoming and outgoing connections. As far as I understand, one would basically use a bridged interface for that very purpose. Now the question arises: Which interface on the dedicated server would the bridge use? eth0 on the host server is not an option, as this is prohibited by the provider. A virtual interface eth0:0 would not make any sense, as a bridge always uses a physical interface (eth0 in this case). Would it be possible to create a bridged interface in each virtual machine that would "dangle in the air"? Thus, without a complement on the dedicated server? How would I have to set up the routing on the host server? Please note that the host / dedicated server has only one network adapter (eth0) which is connected to the provider's network. Regards, Martin

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  • How do large blobs affect SQL delete performance, and how can I mitigate the impact?

    - by Max Pollack
    I'm currently experiencing a strange issue that my understanding of SQL Server doesn't quite mesh with. We use SQL as our file storage for our internal storage service, and our database has about half a million rows in it. Most of the files (86%) are 1mb or under, but even on fresh copies of our database where we simply populate the table with data for the purposes of a test, it appears that rows with large amounts of data stored in a BLOB frequently cause timeouts when our SQL Server is under load. My understanding of how SQL Server deletes rows is that it's a garbage collection process, i.e. the row is marked as a ghost and the row is later deleted by the ghost cleanup process after the changes are copied to the transaction log. This suggests to me that regardless of the size of the data in the blob, row deletion should be close to instantaneous. However when deleting these rows we are definitely experiencing large numbers of timeouts and astoundingly low performance. In our test data set, its files over 30mb that cause this issue. This is an edge case, we don't frequently encounter these, and even though we're looking into SQL filestream as a solution to some of our problems, we're trying to narrow down where these issues are originating from. We ARE performing our deletes inside of a transaction. We're also performing updates to metadata such as file size stats, but these exist in a separate table away from the file data itself. Hierarchy data is stored in the table that contains the file information. Really, in the end it's not so much what we're doing around the deletes that matters, we just can't find any references to low delete performance on rows that contain a large amount of data in a BLOB. We are trying to determine if this is even an avenue worth exploring, or if it has to be one of our processes around the delete that's causing the issue. Are there any situations in which this could occur? Is it common for a database server to come to the point of complete timeouts when many of these deletes are occurring simultaneously? Is there a way to combat this issue if it exists? (cross-posted from StackOverflow )

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  • Adaptec 5805 not recognized after reboot

    - by Rakedko ShotGuns
    After rebooting the system, the controller is not recognized. It only works if the computer is shut down and turned off. I have recently updated the firmware to "Adaptec RAID 5805 Firmware Build 18948". How do I fix the problem? Configuration summary --------------------------- 1. Server name.....................raid_test Adaptec Storage Manager agent...7.31.00 (18856) Adaptec Storage Manager console.7.31.00 (18856) Number of controllers...........1 Operating system................Windows Configuration information for controller 1 ------------------------------------------------------- Type............................Controller Model...........................Adaptec 5805 Controller number...............1 Physical slot...................2 Installed memory size...........512 MB Serial number...................8C4510C6C9E Boot ROM........................5.2-0 (18948) Firmware........................5.2-0 (18948) Device driver...................5.2-0 (16119) Controller status...............Optimal Battery status..................Charging Battery temperature.............Normal Battery charge amount (%).......37 Estimated charge remaining......0 days, 16 hours, 12 minutes Background consistency check....Disabled Copy back.......................Disabled Controller temperature..........Normal (40C / 104F) Default logical drive task priority High Performance mode................Dynamic Number of logical devices.......1 Number of hot-spare drives......0 Number of ready drives..........0 Number of drive(s) assigned to MaxCache cache0 Maximum drives allowed for MaxCache cache8 MaxCache Read Cache Pool Size...0 GB NCQ status......................Enabled Stay awake status...............Disabled Internal drive spinup limit.....0 External drive spinup limit.....0 Phy 0...........................No device attached Phy 1...........................No device attached Phy 2...........................No device attached Phy 3...........................1.50 Gb/s Phy 4...........................No device attached Phy 5...........................No device attached Phy 6...........................No device attached Phy 7...........................No device attached Statistics version..............2.0 SSD Cache size..................0 Pages on fetch list.............0 Fetch list candidates...........0 Candidate replacements..........0 69319...........................31293 Logical device..................0 Logical device name............. RAID level......................Simple volume Data space......................148,916 GB Date created....................09/19/2012 Interface type..................Serial ATA State...........................Optimal Read-cache mode.................Enabled Preferred MaxCache read cache settingEnabled Actual MaxCache read cache setting Disabled Write-cache mode................Enabled (write-back) Write-cache setting.............Enabled (write-back) Partitioned.....................Yes Protected by hot spare..........No Bootable........................Yes Bad stripes.....................No Power Status....................Disabled Power State.....................Active Reduce RPM timer................Never Power off timer.................Never Verify timer....................Never Segment 0.......................Present: controller 1, connector 0, device 0, S/N 9RX3KZMT Overall host IOs................99075 Overall MB......................4411203 DRAM cache hits.................71929 SSD cache hits..................0 Uncached IOs....................29239 Overall disk failures...........0 DRAM cache full hits............71929 DRAM cache fetch / flush wait...0 DRAM cache hybrid reads.........3476 DRAM cache flushes..............-- Read hits.......................0 Write hits......................0 Valid Pages.....................0 Updates on writes...............0 Invalidations by large writes...0 Invalidations by R/W balance....0 Invalidations by replacement....0 Invalidations by other..........0 Page Fetches....................0 0...............................0 73..............................10822 8...............................3 46138...........................4916 27184...........................15226 20875...........................323 16982...........................1771 1563............................5317 1948............................2969 Serial attached SCSI ----------------------- Type............................Disk drive Vendor..........................Unknown Model...........................ST3160815AS Serial Number...................9RX3KZMT Firmware level..................3.AAD Reported channel................0 Reported SCSI device ID.........0 Interface type..................Serial ATA Size............................149,05 GB Negotiated transfer speed.......1.50 Gb/s State...........................Optimal S.M.A.R.T. error................No Write-cache mode................Write back Hardware errors.................0 Medium errors...................0 Parity errors...................0 Link failures...................0 Aborted commands................0 S.M.A.R.T. warnings.............0 Solid-state disk (non-spinning).false MaxCache cache capable..........false MaxCache cache assigned.........false NCQ status......................Enabled Phy 0...........................1.50 Gb/s Power State.....................Full rpm Supported power states..........Full rpm, Powered off 0x01............................113 0x03............................98 0x04............................99 0x05............................100 0x07............................83 0x09............................75 0x0A............................100 0x0C............................99 0xBB............................100 0xBD............................100 0xBE............................61 0xC2............................39 0xC3............................69 0xC5............................100 0xC6............................100 0xC7............................200 0xC8............................100 0xCA............................100 Aborted commands................0 Link failures...................0 Medium errors...................0 Parity errors...................0 Hardware errors.................0 SMART errors....................0 End of the configuration information for controller 1

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