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• RHEL 5.1 loses changes to /etc/hosts above lines for `localhost`

  - by warren

  Is there a known fix (other than upgrading from 5.1) to fix /etc/hosts from being replaced on reboot? I discovered this behavior when running HP's Server Automation tools. HPSA sets-up a variety of local aliases for itself to use for different components to communicate wit each other. However, after reboot, the hosts files is reverted to a quasi-plain-vanilla version: all lines above the entry for localhost are removed. Manually re-adding those needed lines below the entries for localhost works, but is non-ideal. Is there a fix for this behavior? I do realize that RHEL 5u1 is not officially supported for HPSA 7.8, but the hosts file resetting is not good for a variety of other reasons, too.

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• Windows Fax and Scan

  - by Scott

  I'm trying to setup Fax Server on Server 2008 R2. The role installs fine. However from Windows Fax and Scan - Tools - Fax Accounts... I am unable to setup an account. I get the following error. "There was a nerror in configuring the account. Please contact your administrator." I've tried a number of things including removing the Fax Server role and reinstalling. No change. Removing registry keys specified in other forums. No change. In my attempts today I at one point did have the fax printer installed but removed it while I was trying to get x64 and x32 drivers installed. Now I can't get it back. Any ideas?

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• Should EC2 server self register or have admin server

  - by hortitude

  I'm creating AWS servers using chef. I am also planning on enabling auto-scaling. While we have automatic monitoring setup already (server density or nagios etc), I was also going to setup the cloud watch alarm for the status check on the server. This led me down the path of trying to decide whether to install the ec2-command-line tools on the server itself (which then requires me to install java on the servers -- despite no other need for Java in our environment) or to possible have an "admin" box that will check periodically for servers and make sure they have their alarms set. I expect this paradigm to carry over to other things we want to configure (perhaps ensuring that termination protection is setup on production servers?). Any thoughts as to why to go one direction or another?

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• Need help setting up OpenLDAP on OSX Mountain Lion

  - by rjcarr

  I'm trying to get OpenLDAP manually configured on OSX Mountain Lion. I'd prefer to do it manually instead of installing OSX server, but if that's the only option (i.e., OpenLDAP on OSX isn't meant to be used without server) then I'll just install it. I've seen guides that mostly just say to change the password in slapd.conf and then start the server and it should work. However, whenever I try to do anything with the client it tells me this: ldap_bind: Invalid credentials (49) I've tried encrypting the password as well as leaving it plain it doesn't seem to matter. The version is 2.4.28 and I've read as of 2.4 OpenLDAP uses slapd.d directories, but that doesn't seem to be the case in OSX. There was mention of an 'olcRootPW' I should use (instead of 'rootpw' in slapd.conf), but I only found that in a file named slapd.ldif. So ... I'm really confused. Has anyone got OpenLDAP working on OSX Moutain Lion without the server tools?

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• What is the best software to capture full-screen 3h programming session in Windows?

  - by Hugo S Ferreira

  Hi, I'm planning a laboratorial experiment to assess behavior of groups when programming using some tools under study. For that, I'll need to capture their entire screen to disk. Mostly, what will be displayed is code, so I'm not to worried with image quality. However, it's paramount that the team is not able to stop the recording by accident, and the tool should be rebust enough to hold at least 3h of video. If possible, it would be nice for researchers in other rooms to "watch" the video as it is recording. Actually, this last requirement reminded me that I could use a VNC recording software, and install a VNC client in each laboratory computer. Anyway, what is your experience with this? Which software do you recommend? Thanks.

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• Making a cracked or activated windows uncracked

  - by ugurcode

  I have a pc which has windows 7 license but I installed windows from an image i downloaded and it is already activated. for validating genuine microsoft, i need to entet my own product key but the necessary activation tools do not exist in my windows folder. What do? I googled stuff but because the keywords are too broad I couldn't find a useful tool DAZ doesn't work, activation button doesn't show up. When I enter my original key to Windows Anytime Upgrade, I get this error When I attempt using slmgr, I get this error I used sfc /scannow Now slmgr is existing, I entered slmgr.vbs -ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX (replacing X es with the cd key) the operation successful. Now I have installed Microsoft Security essentials, which means the problem is solved. Main steps are here open cmd enter Enter "sfc /scannow" enter slmgr.vbs -ipk XXXXX-XXXXX-XXXXX-XXXXX-XXXXX Success

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• Mass change Microsoft DNS & IIS server settings

  - by Antonius Bloch

  I need to change about 100 DNS records and IIS configurations on a Windows 2003 web server. The gui doesn't accommodate it and the MS command line tools seem incomplete (for example: dnscmd cannot edit a record, only create). Is there a third party tool out there I can use? Basically I just need to change one IP address to another. <vent It's frustrating that what would take a simple search and replace in Linux is this massive exercise under Windows. I mean IIS 6 wasn't Microsoft's first web platform! What were they thinking??? </vent

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• How to format DVD-RAM?

  - by AndrejaKo

  I have few DVD-RAM disks and when using udftools, specifically sudo mkudffs --media-type=dvdram /dev/sr0 where /dev/sr0 is my DVD-RAM drive, I get trying to change type of multiple extents and nothing happens. What should I do? EDIT After trying with dvd+tools, here's what I got: #dvd+rw-format /dev/dvd -format=full -ssa=default * BD/DVD±RW/-RAM format utility by <[email protected]>, version 7.1. * 4.6GB DVD-RAM media detected. * formatting 54.8| And same error as before from mkudffs.

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• How to get Windows 7 logon wallpaper to tile to other monitors?

  - by Oskar Duveborn

  In 2000/XP/Vista it was easy to set a wallpaper for the logon screen, either manually through tools like Logonstudio or simple registry changes by hand on prepared installation images or through custom group policies. In Windows 7 all this works as usual, but the secondary (or any additional) monitor is just black. The mouse pointer is visible on it but no matter what settings I can't get the wallpaper to tile (or stretch or fill or whatever) over onto it. This makes it hard to OEM/company brand the installation for multi-monitor users. More annoying is the fact that it looks officially supported to brand the logon wallpaper in Windows 7 - as it's made extremely easy... apart from this little catch.

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• XP Mode in Windows 7 professional recently ceased to work

  - by Ian FLetcher

  I have used Windows XP Mode in Windows Professional 7 once a week for around 2 years to run Quicken 98. About 2 weeks ago the XP Mode completely stopped working. I get different responses when I try to launch. I can sometimes see a launch screen for XP (which I never used to get) which then hangs Sometimes I just get a black screen Sometimes I get an error message in a cmd like interface that says "windows could not start because the following file is missing or corrupt \system32\ntoskrnl.exe please reinstall a copy of the above file. I have noticed that in the tools tab at the top of the screen "enable integration features" is greyed out. Any recommendations? Ian

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• Stress test speed on a gateway?

  - by TheLQ

  I'm interested in stress testing my gateway server but am lost on how. Most of the stress testing applications I've seen only see how much load an app like Apache can handle, but not this. Essentially I want to send as many packets I can into this box with one computer on one card and see how many come out the other in another computer just to get an idea of what kind of load this can handle. I'm also interested how Snort will perform. I'm not really sure how to do this though. What tools could you recommend that could do this?

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• Mac OSX server command equivalent for dhclient?

  - by John Hall

  Is there an MacOS command that makes a dhcp request, and renews the old lease, drops it for a new one, or usefully reports errors or lack of response from a dhcp server? This would both help fix networking on the machine after problems on the network without rebooting and would also be useful to diagnose wider networking problems from a mac. I can not find any command equivalent of dhclient though obviously some component must be serving this purpose. The question is, is that component exposed to a command line interface? I am biased to the command line for these features and may have overlooked settings panels or tools that might solve it using a gui interface. I believe this question is at the heart of this other question: Is there an equivalent command for 'init.d/networking restart' in OS X

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• Remote site AD design (2003)

  - by Boy Mars

  A remote site has about 25 of our 50-ish employees. They have their own AD domain presently (2003) but I want to look at getting them onto the same global domain for ease of access/administration. The remote site has a VPN link but line speeds are very poor. I am already aware of tools like ADMT and have done a few migrations in the past (NT/2003 domains), but this is the first time I have the luxury of designing how this domain is organised. So I'm looking for tips on good AD design; would a remote site be better served as a sub-domain? would this reduce traffic? I am only currently looking at 2003 since only existing machine will be used.

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• httperrors for Linux

  - by Aaron McRuer

  I'm here because the Google has failed to get me what I need. I just recently graduated from university, and I'm working on a website. Back in college I used the school's web server for my projects, and there were a few tools that aided in the process. One was a Linux program/script/executable/prayer to the computing gods called "httperrors". You typed that into bash, and it would pop up any errors that would occur while running the web server. Specifically, if you had errors in your php code, it would tell you what was wrong. I guess it was a debugger of sorts. I can't find any such program's details online. Does this sound familiar to anyone?

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• How could I easily pack a directory to an ext4 loop partition image?

  - by Alvin Wong

  I would like to pack the content of a directory into an ext4 partition image easily, without mounting a loop device. Background: I am building a version of Android which will mount system partitions as a loop device for ARM. Though I can create those partition images by hand using loop devices, it is very troublesome. I want to use an sh script to automatically do the work, and without needing to loop mount the dd-created image and use cp -rp. The best is to directly pack the files into an image file. Question: Is there any simple command-line tools without needing loop mount and root permission that can pack files into an ext4 partition image?

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• Nagios and rrd on a old server

  - by Pier

  I have an old server (P4 based) on which nagios (and all the other tools to monitor) is running. In the last few weeks we are seeing a strange behavior. In the /var/spool/pnp4nagios (where temporary files are stored before getting processed by pnp4nagios daemon) we have many files like perfdata.1274949941-PID-18839 and we get an error in npcd.log: [05-27-2010 11:17:46] NPCD: ThreadCounter 0/15 File is perfdata.1274951306-PID-27849 [05-27-2010 11:17:46] NPCD: File 'perfdata.1274951306-PID-27849' is an already in process PNP file. Leaving it untouched. Sometimes some graph are not drawn. The server is pretty loaded (around 5-6 normally) and i suspect that npcd goes in timeout and leave those files behind. What could I do (apart from change the server)? Few infos about the system: centos 5.5 nagios 3.2.1 pnp4nagios 0.6 (from sources) Thanks

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• Is it possible to download minimal drivers on Windows, without the extra software packages?

  - by Anton Gogolev

  The situation in all its glory: 30 megs for ATIs' "Display Driver Only". Almost 100 megs for NVidias' GeForce/Ion bloatware. 300 megs for an HP printer driver with immense amount of crap 30 megs for a Realtek integrated sound card driver. 50 megs for a mouse driver ...and dozens and dozens of other similar examples Additinally, UI/UX on vendors' sites is really terrible: I have to carefully pick and choose the exact model of my whatever, although this packages do contain drivers for pretty much every possible hardware model out there. My question is: How and where can I download true minimal drivers without all these ATI "Installation Managers", Realtek GUIs, ASUS tools, etc.?

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• "broken" windows xp after disc replacement

  - by epeleg

  Windows xp pro OEM was installed on my machine, Disk was failing so I cloned it to a new disk (larger one). Now windows said that the hardware has changed significantly and I need to re-activate, and I would gladly do (got the product number on a sticker on the machine) - only that for running the activation process I need to be logged-in, but when I try to login it just automatically logs me out again :( I know my credentials are O.K. because I can connect to the machine remotely and also use sysinternals tools such as PsExec or PSList etc. on it from a remote machine by specifying user and pasword. Login via safemode does not work any differently then in normal mode... I tried to run rundll32.exe syssetup,SetupOobeBnk (as suggested in several places on the net) using PsExec but it did not seem to help... Is there any way out of this evil circle? [ can't log in because not activated - cant activate because not logged in ]

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• Is there a way to create a copy-on-write copy of a directory?

  - by BCS

  I'm thinking of a situation where I would have something that creates a copy of a directory, tweaks a few files, and then does some processing on the result. This wold be done fairly often, maybe a few dozen times a day. (The exact use case is testing patch submissions; dupe the code, patch it, build/test/report/etc.) What I'm looking for could be done by creating a new directory structure and populating it with hard links from the origonal. However this only works if all the tools you use delete and recreate files rather than edit them in place. Is there a way to have the file system do copy-on-write for a file? Note: I'm aware that many FSs use COW at a block level (all updates are done via writes to new blocks) but this is not what I want.

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• Reinstall after a Root Compromise?

  - by Zoredache

  After reading this question on a server compromise, I started to wonder why people continue to seem to believe that they can recover a compromised system using detection/cleanup tools, or by just fixing the hole that was used to compromise the system. Given all the various root kit technologies and other things a hacker can do most experts suggest you should reinstall the operating system. I am hoping to get a better idea why more people don't just take off and nuke the system from orbit. Here are a couple points, that I would like to see addressed. Are there conditions where a format/reinstall would not clean the system? Under what types conditions do you think a system can be cleaned, and when must you do a full reinstall? What reasoning do you have against doing a full reinstall? If you choose not to reinstall, then what method do you use to be reasonably confident you have cleaned and prevented any further damage from happening again.

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• Is it me or is developing web based data entry GUIs a big pain?

  - by GregH

  Maybe it's me or maybe it isn't. I don't have a huge amount of experience of developing web based data entry software but do have some. I used to do it quite a bit years ago. Used to use Oracle Forms, Visual Studio, various 4th generation languages, and performing the user interface layout used to be a snap. Now doing the user interface for developing web applications seems to be a huge pain in the rear. Just trying to get text entry fields and widgets to go where they are supposed to go on the screen is a total pain. You have to know Javascript, CSS, JQuery, HTML, etc. There must be an easier way to develop data entry forms that produce the needed underlying code for a web page. Maybe I'm just not looking in the right place. There must be some WYSIWYG GUI development tools for the web for developing data entry forms out there. Anybody know of any?

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• Is using Capistrano for user maintenance tasks on university lab feasible?

  - by danielkza

  I've been looking around for tools to replace some legacy scripts for creating and maintaining accounts in a university computer lab ecosystem consisting of things like: LDAP and Kerberos for authentication User home storage and web pages Entries on an SQL database Printing quotas Mailing lists, etc. I'd also like to automate machine and VM membership for Kerberos and Puppet if possiible. I've found Capistrano, and while the basic principle of running tasks on remote hosts through SSH seems to fit, and the DSL in Ruby looks quite nice, I've found most documentation is related to application deployment, not generic tasks. I'm also not aware of any good way to parameterize tasks so I can pass on the user information for creation. Is something about Capistrano I am missing, or is it not the correct tool for this job? Are there any more userful alternatives?

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• Back / Forward mouse buttons do not work in VMWare Workstation 6.5 Guest OS

  - by Tim Lara

  I am using a Logitech G9 mouse and running VMWare Workstation 6.5.3 on Vista x64. The guest OS is Win XP, and has the most current version of VMWare Tools installed. Left / right buttons and mouse wheel scrolling work fine in the guest OS, but the back / forward buttons are apparently not recognized. I have tried installing the Logitech software inside the guest OS as well, but it still did not recognize the back / forward buttons. (I didn't really expect this to work since the guest OS doesn't actually see the mouse hardware as a Logitech G9 directly anyway.) I vaguely remember seeing something a while back about editing the virtual machine config file to specify a 5-button mouse rather than the default 3-button setup, but I can't seem to find any specifics on how to do so in the VMWare documentation. Does anyone know if such a workaround exists, or is 5-button mouse functionality just not supported?

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• Reimage PC: Myth or Fact to speeding up a slow PC?

  - by sunpech

  I have a 4-5 year old PC running Windows XP for software development at work. It struggles to run all development tools I need at the same time. Management feels I need to reimage my computer to "speed it up". The last time it was imaged was about 3 years ago. What resources books, websites, blogs, articles, etc are out there that supports/debunks this well known belief that reimaging an old PC running Windows XP will make it faster once again? A resource I remember reading is from Lifehacker.com: Windows Maintenance Tips: The Good, Bad And Useless

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• How to track down a file descriptor leak?

  - by cclark

  I have a java process (Glassfish) which is leaking file descriptors. I know this because I get the helpful java.io.IOException: Too many open files exception. I can look in /proc/PID#/fd and see all the open file descriptors. When I use lsof I get a very large number of entries like this: java 18510 root 8811u sock 0,4 1576079 can't identify protocol java 18510 root 8812u sock 0,4 1576111 can't identify protocol java 18510 root 8813u sock 0,4 1576150 can't identify protocol I see 12 new ones created per minute. What options can I use on lsof or what other tools are available to me to help track down socket file descriptors where the protocol can't be identified? thanks, chuck

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