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• Building My First Computer And Suprise It Isn't Working

  - by BobbShots

  I've had many years of experience working on and around computers, but this was my first foray into building one completely from scratch. So far that foray has been a disaster. My rig is completely assembled, and on its maiden power-up plus many power cycles I noticed three things: There were a few beeps from the BIOS POST upon powering up the first time, but I wasn't paying attention completely to the sequence. However, every time after that there are 0 POST beeps, even after taking off all hardware except the CPU and MB. There was no video being sent to the monitor. I run a HDMI cable from my video card to the monitor. The video card was LOUD. My card is a Sapphire Radeon HD 5870 which is known for not only being a powerhouse, but being pretty quiet. A few times during my power cycles it ran a lot quieter, but most of the time it was just super loud. Can anyone provide help for any of these issues? My MB, CPU, and Video Card are: MB: ASUS P6X58D Premium LGA 1366 Intel X58 SATA 6Gb/s USB 3.0 ATX Intel Motherboard CPU: i7 920 Video Card: Sapphire Radeon HD 5870

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• Borked ubuntu uninstall - need to delete boot partition (i think)

  - by Max Williams

  I just got a new pc laptop with windows 7 and wanted to install Ubuntu on it. Which i did, no problem there, by downloading the installer, burning it to dvd then booting off the dvd and installing. Then, i realised that the new Ubuntu 12.04 uses the Unity desktop, which i immediately disliked, and after some research, began to hate. So, i decided (after a little googling) to install Linux Mint instead. So, thinking i'd better start from scratch, i went to the Windows 7 disk manager and wiped the Ubuntu partition that had been created. Now, when i start up, i get an error from grub, the ubuntu boot manager: error: unknown filesystem grub rescue> _ and a blinking cursor where i can enter commands. I suspect that what i've done is deleted the main ubuntu partition but NOT deleted another partition which is a boot partition, or something like that? Can anyone tell me how i can rescue or unbork this? I'd like to either a) get back to my original windows-only setup OR b) install linux mint off dvd (which i have), into the empty partition, fixing any grub confusion in the process. Any suggestions? Thanks, max BTW please don't answer if you're just going to tell me to stick with 12.04, or install a different distro or something. I definitely want Mint and just want to fix this mess - thanks :)

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• Slow browsing through IE on Windows Server 2012

  - by Volodymyr

  We've run into strange issue on the freshly installed servers. H/W: IBM server X3550 M4 7914; OS: Windows Server 2012 Std. Then we try to browse on the servers thru IE, not all sites are opened or it takes too long time to open the page, i.e. very few of them can be opened. Local FW are disabled. Servers are in a new subnet and traffic is allowed for it. VLAN is configured properly Another Windows Server 2012 host is running OK and Internet access works fine, but it is VM running on Hyper-V 2012. No proxy is used on the network. At the same time, if one tries to establish telnet session to any site on 80/443 ports - it does work. Google works as well. I've tried to configure single Qlogic adapter to check if the issue remains - it does. Teaming is configured with the means of QLogic, not by built-in functionality. IE Enhanced Security is disabled. IE settings were reset, more than once. Why would certain sites work while others not - Idk. I also tried to disable ecncapability and restart server - no luck netsh int tcp set global ecncapability=disabled Any thoughts? UPD1 VMQ is disabled. Servers are not running Hyper-V. UPD2 Servers were rebuilt from scratch, got a mail a few mins ago. Issue still remains. Teaming is now configured with the means of Windows Server 2012.

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• Juniper NetScreen NS-5GT traffic monitoring

  - by blah

  I've done casual research into the subject and am truly dismayed at the lack of compatible tools for such a simple task. Maybe someone can provide assistance. We have a NetScreen NS-5GT in the office. I need to be able to get a glance of current traffic per endpoint -- I think the equivalent of 'get sessions' with byte counts/rates. I don't care about bars, graphs, and reports. Something as simple as a classic software firewall display would be perfect. I can't shell out money on something real like SolarWinds products, so a free solution is essential. I'm willing to do a little work but refuse to program something from scratch. It's not prudent right now for me to install a hub or otherwise mess around physically. There must be something out there I can use, maybe in combination. I don't believe I'm asking too much. Specific answers only please, e.g. monitoring software you know will actually work with this antiquated device. I've read about general approaches to the broader problem dozens of times already.

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• How to migrate WinXP from failing old HD to new one

  - by Péter Török

  Following this issue, we have all our important data backed up now. I also bought and installed a new replacement hard disk (WD 160GB PATA) as secondary (slave) drive. I created two primary NTFS partitions on it: a 40 GB system partition, and a 110GB data partition. In theory I could start reinstalling WinXP from scratch on the new system partition, then copying over all user data from the old drive to the new data partition. Once this is done, I could even throw away the old drive, or keep it just to see what happens. (Note: I don't want to clone the whole drive as it contains a dual boot setup with an old Linux installation which I don't need anymore, and anyway, a fresh reinstall would do WinXP good to get rid of many years' clutter.) However, I am lazy :-) The old HD is still functioning, the problem has not manifested again since. So I feel there is no need to hurry with a complete OS reinstall. What I don't know though is whether I will be able to install WinXP on the new system partition at a later stage without affecting the contents of the data partition on the same drive. If this is possible, I can just move over all our data to the new data partition to have it safe, then continue running WinXP from the old drive as long as it works. Does anyone see any problems/risks with this plan?

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• How to setup the Mac OS X Terminal so it's *just peachy*?

  - by kch

  Hi all, My Terminal is awesome, has every detail just right (for me anyway), and now I'm setting up a few new macs around here and I have no idea whatsoever how to get their terminals to a pretty state. My user account is rather old, has been migrated over many OS X releases and machines, so my Terminal setup has grown rather organically over the years. What I need is a recipe to start from scratch, so 1) I know what I've done, and 2) I can reproduce it anywhere. Things I'm looking for: Full UTF8 support. Setting LC_*, displaying characters correctly, accepting input… I hear this got much easier in 10.5, maybe it all works out of the box now? Setup of OS X-style keyboard text navigation (option-arrows, etc) How you particularly handle meta-key support? (other than ESC'ing your way around) Other things to help our n00bs get around in the shell, such as: List of useful default key bindings (^A, ^D, etc…) Mac-specific .profile, .inputrc goodness Mac-specific tools such as pbpaste & pbcopy, Open Terminal Here, etc If at all possible, a list of files to copy over to another machine that encompasses all the changes made to tune the Terminal. (dotrc files, plists, etc) And, well, anything else really. Just keep the scope on the Mac OS X Terminal application, rather than general unix setup and tools. I think a collection of incomplete answers would be a good start. Post one or two things you remember having done, we'll vote them up, and after a few days I'll try to compile it all into a summary answer.

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• Windows 7 hangs with 100% disk activity but only when online

  - by jeremy

  I have the same problem as seemingly many other people here, and I think we might all be experiencing the same issue: a compatibility issue in Windows 7 between hard drive and network controller or drivers. I've tried firmware updates of my entire board, wiping my drive and reinstalling from scratch. And yet the problem persists, which suggests it is an operating system error, as the hard drive checks out 100% physically. Additionally, the only time it does not occur is when in safe mode WITHOUT networking. With networking, there are spikes in disc access every so often and a huge flow of processes accessing the disc simultaneously that literally "stick" the disc, and physically jolting my computer unsticks it. Again, this has been tested for hours in a professional service environment, and without network access on, things are fine. As soon as there's network access available, the disc access occasionally cranks up to 100% and sticks everything. I'm using Microsoft Security Essentials, but this also happened under Norton, then McAfee. Again, this happened again after a complete wipe, so the likelihood of malware causing it seems low. I don't visit unsecure sites anyway, as far as I know. This, to me, narrows it down to a Windows 7 process that is somehow repeatedly corrupted, perhaps a corrupt .dll or driver, causing a conflict at the operating system level and temporary hard drive failure. I would encourage anyone who knows more about this stuff (which is probably most people!) to take a shot at this one, and I would encourage anyone else with a sticking hard drive in windows 7 64-bit to check on whether it occurs during safe mode without networking.

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• How to eliminate the domain suffix off my user profile folder when migrating to a new domain?

  - by Jerry Dodge

  We have just upgraded a decade old SBS 2003 server to a brand new SBS 2011 machine. During the process, over 30 other client/server machines on that domain also needed to be dis-joined and re-joined from the old domain to the new one. These domains have different names and is not migrated in any way. It's built from scratch. Since each client machine had very unique user profiles under this domain, we needed to make sure these were all backed up and migrated over to the new domain. For the most part, profiles were migrated with no hassle, just by renaming the user profile folder names. However, in one case, when I log in to my domain account, it creates a profile folder with a suffix of the new domain name. I have replaced all the files in the profile's root which begin with "ntuser" with the files of the new profile. The only problem is half the applications can't find their data, because the folder name is different. How can I change this folder name and maintain this profile on the new domain? I have deleted every user account (except admin), deleted their profiles/folders, removed them from the registry, and made sure every trace of this account was gone. The computer was basically a dummy with only an admin account. Then, I log into the machine under my new domain user account (same username as the old domain). It creates a profile folder with my username plus a suffix extension of the new domain name. The client machine is Windows 7 Ultimate, the old server was SBS 2003, and the new server is SBS 2011.

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• How do I cancel windows server 2003 repair install?

  - by Kilgore2k

  System: Windows 2003 Server Enterprise Scenario: NTDS db is corrupt and all attempts to fix with esentutl fail. Ran chkdsk which seemed to repair disk error and give access to the ntds.dit file but still esentutl fails. (Attached the drive to a different server to run the esentutl) Error: Access to source database '[path to copy of]/ntds.dit' failed with Jet error -1022. Operation terminated with error -1022 (JET_errDiskIO, Disk IO error) after 0.170 seconds. This error occurs on any disk I cpoy the files to including original location in C:\WINDOWS\NTDS\ Now enter the "Stupid!" and "what was I thinking!?" part (must be the late hour...) Stupid: No updated backup - after using a backup I get a network password error in the lsass error. what was I thinking!?: Started the install repair from the original CD but the install fails since the AD fails to start. Now I cant boot into any mode (safe mode, AD restore etc) nor complete the repair install. I would really like to avoid a fresh install since I have the Exchange server on this DC and would rather migrate to a new server than have to start from scratch. Thanks!

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• How can I add a second hard drive to a previously configured UEFI/ACHI Windows 8 machine?

  - by pflyer

  Recently purchased a new Windows 8 PC. It came with one hard drive. I want to a second hard drive to it. This second hard drive is my data hard drive from my previous computer. However, I have run into issues when the system accesses it. The drive is found in the BIOS. But is not seen by Explorer or Disk Management. I have added the drive to the next available SATA slot: SATA 2. The machine is a UEFI/ACHI based machine. In my reading I have found people documenting the following: 1) adding multiple partitioned hard drives (like mine is) to UEFI based machines is not possible 2) I have seen it suggested that you can only add blank hard drives to UEFI based machines. However, in doing so, I did not have success. I tried to add it as a hard drive with unallocated space and then as a hard drive with a single simple partition. Both attempts failed. My ultimate question: What is the proper procedure for adding a second hard drive to a UEFI/ACHI machine? I do not want to reinstall the OS and start from scratch as I have seen suggested elsewhere. There has to be a way to accomplish this without all that hassle. Thanks in advance for your help.

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• Size of modules within initrd

  - by LiKao

  I am currently trying to manually replace the kernel within ubuntu-core on an embedded device with a custom kernel. However when I try to update the initrd my initrd becomes much bigger. Here is what I did: Extract the initrd that was shipped with ubuntu Make a list of all modules within the old initrd get the same modules from the new module director at /lib/modules/new_kernel_version add these modules to the initrd and remove the old ones If I do this my initrd becomes quite bigger than the original one, so I checked the individual modules. I picked the btrfs.ko filesystem driver as an example. So by comparing these two modules I noticed the one I just picked into the initrd was much bigger, which caused the difference in size. -rw-r--r-- 1 root root 999K Nov 14 15:06 btrfs.ko For the btrfs.ko within the shipped initrd. -rw-r--r-- 1 root root 7.2M Nov 14 15:08 btrfs.ko For the new btrfs.ko. What is different between these two modules? Could this be caused by some faulty setting for the new kernel? When producing the kernel I copied /proc/config.gz and used make oldconfig to update it, so all optimisations should be the same for both kernels. Or is there something else which is being done to the modules before they are put into the initrd? Maybe is there even some better way to build a new initrd for the new kernel in ubuntu altogether. Update: I just also tested with an initrd which I created from scratch using the mkinitrfs command within ubuntu, and it has the same size difference that I found for the initrd I manually updated.

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• How to install Windows with no CD drive boot option in BIOS?

  - by Kris Hollenbeck

  I have a new computer which I built from scratch and I am trying to install a copy of Windows Vista on it. I am able to get to the BIOS and change the boot options which are as follows.. -Built-in EFI Shell -SATA: ST31000528AS I have searched around for and everything I find says to boot from the CD rom. However, as you can see. That is not an option for me. So I am wondering if there is another way around this? Is it possible to boot the Disk from the EFI Shell? Any help is much appreciated. Thanks EDIT: I have tried this.. http://technet.microsoft.com/en-us/library/dd744321%28v=ws.10%29.aspx UPDATE: I managed to make my USB bootable via the BIOS and I have copied my windows Vista disk onto my USB via drag and drop. However I am still not able to get the windows install to start. Also I have tried booting it from the EFI shell using the following command.. blk6: blk6:\> \EFI\BOOT\BOOTX64.EFI Still no luck..

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• I need to preserve a tape using symantec backup exec. I'm aving trouble doing so

  - by MrVimes

  Please forgive me if this is the wrong stack exchange site. Please suggest which one I should post this to if it is. There's an automatic tape machine running in a remote location, with software (symantec backup exec 11d) Recently one of the servers being backed up had problems with its raid controller, so one of the drives has become invisible. I need to preserve the last good backup of that drive so I am trying to replace the tape with the most recent backup of that drive on it with one of the scratch tapes (blank tapes) present in the machine. I've tried the following... Associate the blank media with the media set in question (Wednesday) For the existing media (the tape with the data I want to keep) I click 'move to vault' and move it to the offline vault. I associate it with something other than 'Wednesday' (a media set called 'keep data infinitely...') I then do an inventory on that slot. The above steps I'm led to believe are supposed to put the fresh tape in the slot that had the tape I want to keep in it. But it just keeps showing up as containing the tape I want to keep after the inventory. (after refreshing the device tree) I am a complete newbie with this software. Can you tell me what I'm doing wrong, and/or tell me how to acheive my desired goal Edit: Just want to point out that I did try to get help directly from symantec with this, but having jumped through countless hoops to create an account and create a support ticket my progress was halted by requiring something called a 'tecnical contact id' at the final step with no explanation of what it is or how to get one.

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• Software/hardware to build video streaming server?

  - by Sasha Yanovets

  I am looking for a video streaming server solution, something like online TV server, with ability to make live broadcasts in the internet. What software could you recommend for that? What kind of hardware it should run on, should be there anything special? I am looking for a solution that could be scaled up to at least 1000 simultaneous users online with good resolution of video. I think it is good to have general answer on what direction to choose. But here more details on my specific case: I just looking for a solution almost from scratch. We have some video content that we've produced, but it is not delivered over internet yet. We do not tied to any particular vendor for now. We want to make 24 hours of steaming three 8 hour blocks with change of content every day. We want the ability to make regular live broadcasts. I guess we will need to have several options of streaming quality (low ~56 kb/s mid ~273 kb/s). Some terms just foreign to me (like play-truncation rate), if you could point out what parameters we should avare of, it would be great. Uplink to the internet is to be determined. We plan to start from something and scale up on the way. If you are already have some kind of media streaming server, just describe its configuration here (hardware, OS, software), peak number of concurrent users it serves. I think it could help people approaching this task.

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• Who should I run mysql as, on a personal computer?

  - by user664833

  I just installed mysql via homebrew (with brew install mysql, on Mac OS X Mountain Lion - recently installed from scratch). Following the installation, there is a "caveats" section with options around further necessary actions to take: ==> Caveats Set up databases to run AS YOUR USER ACCOUNT with: unset TMPDIR mysql_install_db --verbose --user=`whoami` --basedir="$(brew --prefix mysql)" --datadir=/usr/local/var/mysql --tmpdir=/tmp To set up base tables in another folder, or use a different user to run mysqld, view the help for mysqld_install_db: mysql_install_db --help and view the MySQL documentation: * http://dev.mysql.com/doc/refman/5.5/en/mysql-install-db.html * http://dev.mysql.com/doc/refman/5.5/en/default-privileges.html To run as, for instance, user "mysql", you may need to `sudo`: sudo mysql_install_db ...options... Start mysqld manually with: mysql.server start Note: if this fails, you probably forgot to run the first two steps up above A "/etc/my.cnf" from another install may interfere with a Homebrew-built server starting up correctly. To connect: mysql -uroot To launch on startup: * if this is your first install: mkdir -p ~/Library/LaunchAgents cp /usr/local/Cellar/mysql/5.5.27/homebrew.mxcl.mysql.plist ~/Library/LaunchAgents/ launchctl load -w ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist * if this is an upgrade and you already have the homebrew.mxcl.mysql.plist loaded: launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist cp /usr/local/Cellar/mysql/5.5.27/homebrew.mxcl.mysql.plist ~/Library/LaunchAgents/ launchctl load -w ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist You may also need to edit the plist to use the correct "UserName". On previous versions of Mac OS X I ran mysql as mysql user, but now I am confronted by the idea of running it as myself. I am the only one who uses this computer (which happens to be my laptop), and I do programming for work and for pleasure. What are the pros & cons, or best practices, around choosing whether to run mysql AS YOUR USER ACCOUNT or as mysql or something else still?

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• Wireless Access Point stopped working

  - by Alex Pritchard

  I have a simple LAN set up at home using a Linksys WRT54GSV4 as my primary router and an Encore ENHWI-2AN3 as an access point. I connect the Encore to the Linksys by running a cable from one of the Linksys LAN ports into the Encore WAN input. I originally configured this using the Encore setup wizard, setting the device up in AP Router Mode. It detected the input network and worked about as expected, creating a second network that used my primary network to connect to the internet. It worked fine for about 2 weeks, then abruptly cut out today. I checked to make sure the network was still live through the cable going into the Encore (provides internet when connected to a laptop directly) and that devices are still able to connect to the network being broadcast by the Encore. When I try to rerun the connection wizard on the Encore, I receive the message "No Services found in WAN port." The WAN Settings is no longer retrieving a dynamic ip from the line. I tried providing a static IP, assigning an IP address within the subnet range of my primary router that wasn't being used and pointing the Default Gateway to the Linksys IP, but this did not work either. When I plug the cable into the WAN port, an internet light comes on that is not lit when a live network is not connected. I've tried doing a hard reset on the Encore (held down the rest button until the lights flashed, reconfigured from scratch), but the WAN settings are still not detected. Also tried powering off and on the modem, linksys, and encore. Any suggestions would be appreciated!

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• Relayout LVM Disk

  - by Tom

  I have an Ubuntu 11.10 system with two 500GB disks. The partition tables look like this: /dev/sda1 primary 465.52GB /dev/sda2 extended 243.17MB -> /dev/sda5 logical 243.14MB /dev/sdb1 primary 465.76GB sda1 and sdb1 are in a single LVM physical volume group containing a single logical volume containing a single logical filesystem which is mounted as /. sda5 is mounted as /boot. The problem comes when I want to upgrade to Ubuntu 12.04, which requires at least 247MB free on /boot. So I need to reduce the size of sda1 so that I can increase the size of sda2 and sda5. How the heck do I do that? I can find how to shrink the logical volume group, but I'm not at all clear on how to clear out the end part of sda1 so that I can reduce the physical volume group. Does pvresize just deal with this automagically? Or is that wild wishful thinking? I guess the alternatives are to back everything up onto something or other and recreate the thing from scratch or find out whether GRUB2 supports using LVM for /boot.

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• 2012 R2 services will not start after promotion to Domain Controller

  - by Cybersylum

  Having a peculiar issue promoting a Windows 2012 R2 server in a domain at 2003 domain/forest functional level. Built a new 2012 R2 server, added the following software (labtech, appassure, eset A/V, & Teamviewer). It activated and appeared to be working fine. I added the Active Directory Domain Services role, and completed the configuration (Domain/Forest Prep, and DC promotion). All appeared to go well. I rebooted the server, and that's where the peculiar stuff began. I noticed the server indicated it needed activated again; but would not accept the key. I verified the key was good. That's when I noticed the Software Protection service (as well as many other core services - Base Filtering engine, DHCP client, firewall, etc) would not start. The error message for all of them was "Access Denied". I called MS, and they wanted to troubleshoot at a service level. Their fix was to use procmon and identify the resource that needed permissions (registry key, file or folder) and add "everyone" with full control). That got the services to start; but the problem re-appeared after a reboot. Thinking the issue might have been with the anti-virus package during the promotion process, I rebuilt the DCs from scratch and removed the metadata from AD (as I could not demote the machines "rpc server unavailble"). I tried to promote the newly built machines again. The only changes to the brand new machines being critical updates. Again the promotion appeared to work fine; but upon reboot (and a long wait to allow replication to occur) similar problems began to re-appear. I have verified that the schema updates are correct (schema version is 69 - for Windows 2012 R2). I am not finding much about this issue through my own searches, so I thought I would post this to see if anyone else has seen anything similar...

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• Is it ok to share private key file between multiple computers/services?

  - by Behrang

  So we all know how to use public key/private keys using SSH, etc. But what's the best way to use/reuse them? Should I keep them in a safe place forever? I mean, I needed a pair of keys for accessing GitHub. I created a pair from scratch and used that for some time to access GitHub. Then I formatted my HDD and lost that pair. Big deal, I created a new pair and configured GitHub to use my new pair. Or is it something that I don't want to lose? I also needed a pair of public key/private keys to access our company systems. Our admin asked me for my public key and I generated a new pair and gave it to him. Is it generally better to create a new pair for access to different systems or is it better to have one pair and reuse it to access different systems? Similarly, is it better to create two different pairs and use one to access our companies systems from home and the other one to access the systems from work, or is it better to just have one pair and use it from both places?

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• Fixed ruby/mysql connection with new libmysql.dll, and broke Apache in the process

  - by jmtoporek

  Ok so bit of background - all my development has been on a local Windows 7 machine. I had Apache with PHP/MySQL running with no issues. Been using ruby (1.9.3 and latest rails release 3.2.9) with built in webrick server, but had a devil of a time connecting to mysql. Did some research, updated my libmysql.dll file in c:/ruby/bin and it worked! Very happy... except now Apache stopped working. In my attempt to resolve the issue I found an older copy of libmysql.dll, renamed the new file, copied the old file back to c:ruby/bin and apache works, ruby does not. So I can take this ass backwards approach but obviously this seems pretty stupid. I was surprised that Apache was using the dll file in ruby/bin folder. I presume this is related to path variables perhaps? I guess I was hoping someone could direct me as to how I can use one dll file for apache and another for ruby. Or if you have some other smarter approach - I've smart enough to follow directions to install apache from scratch and enable php on windows as well as ubuntu, but I'm not much of a sys admin, just a semi competent web developer.

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• Rescue system running TFS that BSODs, into vmware esxi

  - by 3molo

  Hi, After moving to new facilities, one of our old Dell servers running Windows Server 2003 R2 on PowerEdge 2650 HW BSODs with 0x8e. The server runs Team Foundation Server, so we have a few guys dependent on it. No one here knows TFS, so we have no idea how difficult it would be to setup from scratch. We have the MSSQL database(s) backed up, recent and fresh copy. Tried removing/refitting memory modules, but with no success. The system boots into safe mode but hangs occasionally. I booted a linux livecd and did a dd of both c: and d:, so I have all the data in compressed images on a vmware machine. For the guest, I created a 38G (actually it became 40GB) partition to act as C:, and booted a live cd. I then uncompressed the compressed disk image of c: and dd'd it to the new c: using 'gunzip -dc c.img.gz | dd of=/dev/sda1 bs=1M'. The operation ran for about 1000 seconds, and completed successfully. I assumed it would at least try to boot windows (but most likely BSOD due to not having correct drivers), but the Vmware ESXi guest does not seem to recognize it as a bootable disk. We don't have the vmware enterprise license, so the vmware converter cold cloning is not an option. Did I do something wrong in my dd's etc with the ISOs, or why would it not (try to) boot? Am I wasting my time? What other approach is there? Will continue to try to remove services and drivers to make the physical machine at least work reasonably well in safe mode. What do you suggest? 1. Continue to get the dd'd images to the virtual disk and get it to boot. 2. Install a new windows server, get team foundation server and restore from backup. 3. Focus on the old problematic hardware Any help appreciated

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• Setting up Web server so it is easy to migrate

  - by Nyxynyx

  Hi I am about to move my site from a VPS to another host's dedicated server. One of my concern is about scaling the site in the future that involves a change of server. Now that I am starting the dedicated server from scratch with only the OS, this means that I need to install the web server stack, including Apache and its mods, PHP, MySQL, PostgreSQL, Tomcat, Solr and a few other softwares like ImageMagick and git. Question: Is there a way for me to setup this new dedicated server such that I can easily migrate the entire site, both the technology stack and the code to the a newer server (upgrade from this new dedicated server) easily without reinstalling and reconfiguring everything? The code for the website is being handled by git and github so thats not a problem. I'm more conerned about the rest of the software required. Side question: The current VPS uses CentOs with cpanel and it seems that many packages are outdated on yum and cpanel interfers with the installation of many packages. Which OS should I go with for the new server? Ubuntu?

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• How do you avoid that server documentation gets out of sync with the actual setup?

  - by Frerich Raabe

  I'm a hobbyist maintaining a small FreeBSD server serving mail via IMAP - it's an exercise in server administration. The setup does have reasonably good documentation (in AsciiDoc format) which recently allowed another person to recreate the entire setup from scratch in less than 30 minutes. However, I noticed that after the initial setup, it easily happens that small changes done to the system (say: inetd gets disabbled, my IMAP server listens on an additional port for ManageSieve connections, a new router is added to the exim configuration) don't end up in the documentation immediately (if at all). My idea was to avoid this problem by (partially?) generating the documentation out of the configuration files and the comments therein - one way to implement this may be to put /etc and /usr/local/etc into some source code management system (say - git) and then run a script which regenerates the documentation on every commit. However, I'm not sure whether that would be overkill and/or too difficult to get right (after all, I don't want complete copies of the source files in my documentation but rather just the diffs). How do other people avoid that the server documentation gets outdated - is there a good way to keep them in sync automatically, or do you just have the discipline to update the documentation the same time you modify the system?

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• Azure Virtual Machines - what fault tolerance do they provide?

  - by Borek

  We are thinking about moving our virtual machines (Hyper-V VHDs) to Windows Azure but I haven't found much about what kind of fault tolerance that infrastructure provides. When I run VHD in Azure, I've got two questions: Is my VHD and all the data in it safe? I think that uploaded VHDs use the "Storage" infrastructure so they should be automatically replicated to multiple disks and geographically distributed but should I still make a full-image backup just to be safe? (Note that of course I will be backing up the actual data inside VMs that I care about; I just want to know if there is a chance greater than 0.0000001% that one day I will receive an email from Microsoft telling me that my VM is gone and that I should create or restore it from scratch). Do I need to worry about other things regarding the availability of my VMs? I mean, when I have an on-premise server I need to worry about the hardware itself, about the host operating system, what would happen if my router failed, if my Hyper-V's C: drive failed etc. Am I right in thinking that with Azure, their infrastructure takes care of all of this? Thanks.

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• Firefox won't start

  - by Daniel R Hicks

  OK, I've got this problem again, only this time the problem only seems to affect Firefox and Thunderbird. Rebooted several times. Tried resetting to the last restore point, but that didn't work. Tried setting a new Firefox profile, and that didn't work either. The symptom is that you click on the Firefox or Thunderbird icon, the process appears in the Process Explorer list, but the window never opens. Curiously, if Firefox has been "started" this way, Internet Explorer hangs starting until I kill the Firefox process. Any ideas? I suppose the next thing to try is uninstalling and reinstalling Firefox/Thunderbird, but this whole thing is getting old. The box is a Sony Vaio running Windows Vista. It was completely restored from scratch less than two weeks ago, after the last fiasco. (I'm suspecting that my aborted install of Acronis True Image may have mucked things up this time.) Sigh! Another symptom: It occurred to me to try printing something, but if I open "Printers" it just sits there "searching". So something is rotten in the bowels of Windows. Minor update: It occurred to me to kill Internet Explorer (where I'd attempted printing). Then Printers comes up fairly quickly -- with no printers defined. Clicking "Add a printer" does nothing. Update: Well, following this suggestion to stop and restart the print spooler brought the printers back. And, wonder of wonders, Firefox now starts OK. Stopping and restarting the print spooler!!

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