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• Deleting large no of files on linux eats up CPU

  - by Sanjay

  I generate more than 50GB of cache files on my RHEL server (and typical file size is 200kb so no of files is huge). When I try to delete these files it takes 8-10 hours. However, the bigger issue is that the system load goes to critical for these 8-10 hours. Is there anyway where I can keep the system load under control during the deletion. I tried using nice -n19 rm -rf * but that doesn't help in system load. P.S. I asked the same question on superuser.com but didn't get a good enough answer so trying here.

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• How can I shrink the Address toolbar in the Task Bar?

  - by Iszi

  I like being able to run commands straight from my Task Bar. So, I've enabled the Address toolbar on my new Windows 7 system - just like I had on my old XP system. However, the bar seems to have a mandatory minimum length that's a bit longer than I'd prefer. It's about twice as long, if memory serves, as the minimum size allowed in XP. Is there any way I can adjust this minimum length, through a Registry key or some other means? (Note: I've also got a related question, about removing the Refresh button at the end of the bar.) EDIT: For clarity, I'm adding a screenshot. The toolbar I want to shorten is the one circled below, with an empty text-entry field that has a drop-down and "Refresh" button. I currently have it positioned between a Quick Launch toolbar and the Taskbar. On the far side of the Taskbar, before the System Tray, is a Desktop toolbar.

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• Understanding the Linux boot process, subsystem initialization, & udev rules?

  - by quack quixote

  I'm creating UDEV rules for automounting external drives on a headless server, much in the same way as Gnome-VFS does automounting during a user session. I'm concerned with the rule's behavior at boot-time. There's a good chance one of these drives will be connected during a boot, and I'd prefer any connected drives get mounted in the right place. The drives might be either USB or Firewire, and they are mounted from a shell script fired off by UDEV on detecting an "add". Here are my questions: When UDEV runs the mount for these devices at boot, will the system be ready to mount it? Or will the script get triggered too early? If it's too early, what's a good way for a script to tell that the system isn't ready yet (so sleep a while before checking again)? The UDEV rule matches ACTION=="add". Does this event even fire at system boot?

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• Ubuntu Kernel Panic on Inserting Network Cable

  - by Skizz

  I've been having a recurring kernel panic with my Ubuntu 9.04 installation (see other posts by me). Today, I was fiddling around trying to get some cable attached when the system panicked. Looking at the layout, the only cable in the vicinity was the network cable. Upon further investigation, it seems that the system reliably panics whenever I insert a network cable. Removing the cable does not cause the panic. How do I stop the system panicking when I insert the network cable? If more information is needed, please add comments/answers and I'll post the required data.

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• Removing QWERTY Keyboard Layout Permanently

  - by Phoenix

  Following the instructions in this thread, I added the Dvorak layout to the Regional and Language Options control panel, set it as the default keyboard layout and removed the US (QWERTY) layout. However, even though I removed the QWERTY layout, it still appears in my language bar, and my system defaults to it in every new window. This persists after a log-out/log-in and even a system restart. How do I remove the QWERTY keyboard layout from my system permanently? Alternatively (if outright removing QWERTY is just impossible), can I get Windows to default to Dvorak instead of QWERTY for new windows?

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• Windows not remembering default audio device?

  - by Lynda

  I prefer the audio output on my computer to use the standard audio jack output due to volume issues. But I am using a monitor with HDMI. I have chosen to set the default audio device to be "Speakers" But every time I reboot the default audio device is the HDMI Output again. I am running Windows 7 64bit. Why does it not remember the default device? (I do shutdown and boot up properly without errors.)

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• Grub loading. The symbol ' ' not found. Aborted. Press any key...

  - by John

  Hi there, I have a dual boot system on dell xps 9000 with windows 7 and ubuntu. But after I performed system backup on it as requested by windows 7 I am no longer able to boot into the computer, instead at the beginning after bios I get the following message: Grub loading. The symbol ' ' not found. Aborted. Press any key... I tried to change bios booting config to starting with harddrive and it still returned the same message. Using windows boot disk only asks me to do another system backup or threatens to delete my harddrive completely. The only solution I have so far is to reinstall ubuntu, but that leaves 2 additional copies of ubuntu on my computer. Is there a simpler way to fix the situation so I can actually boot into windows? Thanks so much.

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• Windows Despooler Requires Administrator to Print

  - by Software Monkey

  Does anyone know what changes I might need to make to allow restricted users to print using a printer configured for spooling? My Windows XP SP3 system currently requires me to use an Admin account for printing if the print is configured to spool documents before printing. If the printer is configured for direct printing it works for all accounts. This used to work and some months back it just stopped, and I can't pin down why. The printer itself is configured for all uses to have complete authority. My system is locked down for restricted users given them only read authority to the entire file system except their data directories, which is how I have run my systems for years. I assume there may be a directory somewhere that I need to allow users to write to.

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• How to boot RHEL with no bash?

  - by nmelmun

  How can I boot a RHEL VM if I deleted /bin/bash? When trying to boot, I now get the following error: "INIT: Cannot execute "/etc/rc/d/rc.sysinit" The next thing I tried was to modify the kernel boot parameters by adding init=/bin/ksh at the end of the line, which gave me a functional shell. After this, in order to get write permissions, I remounted the root partition with: mount -o remount,rw / Then I tried to boot using ksh as the shell by tricking the system into thinking it's bash: ln -s /bin/ksh /bin/bash Then restarted the system normally. Unfortunately this didnt work since ksh is not compatible and /etc/rc.d/rc.sysinit uses several bash-specific tricks. Does anyone else have a suggestion on how I could get the system to boot normally without reinstalling bash?

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• Windows Server 2008 Scheduled Tasks not running - 0x80041323 - Reduce Number of tasks running in the specified context?

  - by Mayb2Moro

  I am getting the following problem on a number of windows 2008 servers. 0x80041323 Task Scheduler failed to start task \Reporting" in TaskEngine "S-1-5-18:NT AUTHORITY\System:Service:" for user "NT AUTHORITY\System". User Action: Reduce the number of tasks running in the specified user context. I've done lots of research around the web but have been unable to come up with a working answer. I have found some information suggesting increasing a value in the registry key "TasksInMemoryQueue" which I have done, but even setting this as high as 500 has not helped. I have rebooted the server after setting this value. The server does run a high volume of Scheduled tasks, there could be 150 or so running at any one time, but certainly not 500. The scheduled tasks are all running under the system user. Does anyone have any ideas?

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• migrate SharePoint to SBS Server

  - by Eric Lorson

  We have a SharePoint 2003 server and we need to migrate that data to SharePoint 2011 on a SBS server. We cannot use the migration tool because one of the servers is SBS and the other is not. We exported the SharePoint data from the old system, but the import to the SBS SharePoint is failing with very little info on why. I think that there is a schema conflict, but I am not that familiar with SBS and I am not finding the error in the Windows logs. Has anyone had to migrate data from non-SBS system to an SBS system? Or can anyone help me figure out where to look for more info on what is going on?

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• Enable Remote Desktop File Transfer

  - by Eric J.

  Most of the servers I RDP to support cut-and-paste file transfer (from my Win7 64 machine). One does not, and I can't figure out what configuration step is missing. I followed the steps outlined here: http://support.microsoft.com/kb/313292 but do not see the local file system on the remote server (or vice versa for that matter), and I cannot cut and paste files from the local to the remote system. If I try to cut and paste from the remote system to the local one, I get the error Cannot copy FILENAME: Windows cannot find '%1!ls!'. Check the spelling and try again, or try searching for the item by clicking the Start button and then clicking Search. The remote server is Windows Server 2003 Standard Edition.

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• is there a way to connect to public wifi with psp ?

  - by gasga

  is there something like backtrack4 for psp that lets me use public wifi ? perhaps even do some security auditing on the psp ??? how long can psp remain on, if connected to AC adapter....will it overheat and shutdown as networking wifi drains lot of battery

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• Simple one-way synchronisation of user password list between servers

  - by Renaud Bompuis

  Using a RedHat-derivative distro (CentOS), I'd like to keep the list of regular users (UID over 500), and group (and shadow files) pushed to a backup server. The sync is only one-way, from the main server to the backup server. I don't really want to have to deal with LDAP or NIS. All I need is a simple script that can be run nightly to keep the backup server updated. The main server can SSH into the backup system. Any suggestion? Edit: Thanks for the suggestions so far but I think I didn't make myself clear enough. I'm only looking at synchronising normal users whose UID is on or above 500. System/service users (with UID below 500) may be different on both system. So you can't just sync the whole files I'm afraid.

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• Help needed in installing Snow Leopard on Macbook air

  - by Legolas

  So. I tried partition my disk using Disk Utility for loading the operating system in the partition drive and installing it. But partition failed, and I could not do that. I tried Remote OSX install from another computer, my MBA crashes with error Hold Power Button to shutdown I dont have a super drive or 8 gigs hard disk. Could someone suggest me some way to install Snow Leopard OSX on my Macbook air ? Thanks !

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• Remote desktop connection issues in windows server 2003

  - by rboorgapally

  Hi all, We are running windows server 2003 at our work place. I have enabled the remote desktop connections. I have also added all the users who connect to the server(three to four people) to the RDC group of users. Many of these users are also having Administrator access. The problem we are facing is that the connection is suddenly lost when we are working on something. Also, at times the system restarts by itself. Is this issue related to the limit on the number of users able to connect to the system? If so, why does the system accept new connections and/or terminate the existing connections? Has this anything to do with the users having administrator access so that all have equal prority and that is why existing connections are stalled? Also, please differentiate between console remote desktop and non console remote desktop.

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• what damage can be caused if scandisk is not run before defrag

  - by Justin Gregoire

  Hello, I would like to know what the damage to a drive can be if a scandisk is not performed before a disk defrag. I have looked up some sites that say a scandisk should be run to correct any issues that may be apparent on the system, making sure that the drive is free of errors before a disk defrag is done. I have to perform a defrag on a computer without having physical access to it (using remote connection). I know that the scandisk requires a reboot to the system (causing me to lose my connection) which would be difficult to restart physically if the system does not come back on by itself once rebooted (this has happened before). Any suggestions? Thank you.

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• Dell Dimension running Fedora12 does a "Sleeping Beauty" and I am not am not a "handsome prince"!

  - by Jim Dobbs

  Dell Dimension 2350 with a Pentium IV processor and integrated video and network chips running Fedora12 does a "Sleeping Beauty" and I, apparently, am not am not a "handsome prince"! The system puts video and network to sleep and it will not wakeup. I have heard of this problem on laptops, but this is a tower. Any ideas or help is appreciated. I tried to ping the network card from another system and ping fails. The logs indicate that the system continues to be active. Pressing keyboard short-cut keys makes the disk light blink but neither the video or network card comes alive. Failing all else, are there any Linux commands that I could schedule in cron to pulse video and network adapters hourly that will keep them awake? Or, should I wait on Fedora13? Before this machine, I built a Dimension 2400 with Pentium IV and it had the same problem. Fedora9 on the same hardware is fine.

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• sshd running but no PID file

  - by dunxd

  I'm recently started using monit to monitor the status of sshd on my CentOS 5.4 server. This works fine, but every so often monit reports that sshd is no longer running. This isn't true - I am still able to login to the server via ssh, however I note the following: There is no longer any PID file at /var/run/sshd.pid - after a reboot this file exists. Once it is gone, restarting sshd via service sshd restart does not create the PID file. sudo service sshd status reports openssh-daemon is stopped - again, restarting sshd does not change this, but a reboot does. sudo service sshd stop reports failed, presumably because of the missing PID file. Any idea what is going on? Update sudo netstat -lptun gives the following output relating to port 22 tcp 0 0 :::22 :::* LISTEN 20735/sshd Killing the process with this PID as suggested by @Henry and then starting sshd via service results in service sshd status recognising the process by PID again. Would still like to understand this better. RPM verify suggested by a couple of answerers shows this: sudo rpm -vV openssh openssh-server openssh-clients | grep 'S\.5' S.5....T c /etc/pam.d/sshd S.5....T c /etc/ssh/sshd_config /etc/pam.d/sshd has the following contents: #%PAM-1.0 auth include system-auth account required pam_nologin.so account include system-auth password include system-auth session optional pam_keyinit.so force revoke session include system-auth #session required pam_loginuid.so Should that last line be commented out? Update Here's the output of @YannickGirouard 's script: $ sudo ./sshd_test Searching for the process listening on port 22... Found the following PID: 21330 Command line for PID 21330: /usr/sbin/sshd Listing process(es) relating to PID 21330: UID PID PPID C STIME TTY TIME CMD root 21330 1 0 14:04 ? 00:00:00 /usr/sbin/sshd Listing RPM information about openssh packages: Name : openssh Relocations: (not relocatable) Version : 4.3p2 Vendor: CentOS Release : 72.el5_7.5 Build Date: Tue 30 Aug 2011 12:34:14 AM BST Install Date: Sun 06 Nov 2011 12:50:57 AM GMT Build Host: builder10.centos.org Group : Applications/Internet Source RPM: openssh-4.3p2-72.el5_7.5.src.rpm Size : 745390 License: BSD Signature : DSA/SHA1, Fri 02 Sep 2011 01:13:01 AM BST, Key ID a8a447dce8562897 URL : http://www.openssh.com/portable.html Summary : The OpenSSH implementation of SSH protocol versions 1 and 2 ------------------------------------------------------ Name : openssh-clients Relocations: (not relocatable) Version : 4.3p2 Vendor: CentOS Release : 72.el5_7.5 Build Date: Tue 30 Aug 2011 12:34:14 AM BST Install Date: Sun 06 Nov 2011 12:51:04 AM GMT Build Host: builder10.centos.org Group : Applications/Internet Source RPM: openssh-4.3p2-72.el5_7.5.src.rpm Size : 871132 License: BSD Signature : DSA/SHA1, Fri 02 Sep 2011 01:13:01 AM BST, Key ID a8a447dce8562897 URL : http://www.openssh.com/portable.html Summary : The OpenSSH client applications ------------------------------------------------------ Name : openssh-server Relocations: (not relocatable) Version : 4.3p2 Vendor: CentOS Release : 72.el5_7.5 Build Date: Tue 30 Aug 2011 12:34:14 AM BST Install Date: Sun 06 Nov 2011 12:51:04 AM GMT Build Host: builder10.centos.org Group : System Environment/Daemons Source RPM: openssh-4.3p2-72.el5_7.5.src.rpm Size : 492478 License: BSD Signature : DSA/SHA1, Fri 02 Sep 2011 01:13:01 AM BST, Key ID a8a447dce8562897 URL : http://www.openssh.com/portable.html Summary : The OpenSSH server daemon ------------------------------------------------------ However, I've since got things working by killing the process and starting afresh, as suggested by @Henry below, so perhaps I am no longer seeing the same thing. Will try again if I am seeing the issue again after next reboot. Update - 14 March Monit alerted me that sshd had disappeared, and again I am able to ssh onto the server. So now I can run the script $ sudo ./sshd_test Searching for the process listening on port 22... Found the following PID: 2208 Command line for PID 2208: /usr/sbin/sshd Listing process(es) relating to PID 2208: UID PID PPID C STIME TTY TIME CMD root 2208 1 0 Mar13 ? 00:00:00 /usr/sbin/sshd root 1885 2208 0 21:50 ? 00:00:00 sshd: dunx [priv] Listing RPM information about openssh packages: Name : openssh Relocations: (not relocatable) Version : 4.3p2 Vendor: CentOS Release : 72.el5_7.5 Build Date: Tue 30 Aug 2011 12:34:14 AM BST Install Date: Sun 06 Nov 2011 12:50:57 AM GMT Build Host: builder10.centos.org Group : Applications/Internet Source RPM: openssh-4.3p2-72.el5_7.5.src.rpm Size : 745390 License: BSD Signature : DSA/SHA1, Fri 02 Sep 2011 01:13:01 AM BST, Key ID a8a447dce8562897 URL : http://www.openssh.com/portable.html Summary : The OpenSSH implementation of SSH protocol versions 1 and 2 ------------------------------------------------------ Name : openssh-clients Relocations: (not relocatable) Version : 4.3p2 Vendor: CentOS Release : 72.el5_7.5 Build Date: Tue 30 Aug 2011 12:34:14 AM BST Install Date: Sun 06 Nov 2011 12:51:04 AM GMT Build Host: builder10.centos.org Group : Applications/Internet Source RPM: openssh-4.3p2-72.el5_7.5.src.rpm Size : 871132 License: BSD Signature : DSA/SHA1, Fri 02 Sep 2011 01:13:01 AM BST, Key ID a8a447dce8562897 URL : http://www.openssh.com/portable.html Summary : The OpenSSH client applications ------------------------------------------------------ Name : openssh-server Relocations: (not relocatable) Version : 4.3p2 Vendor: CentOS Release : 72.el5_7.5 Build Date: Tue 30 Aug 2011 12:34:14 AM BST Install Date: Sun 06 Nov 2011 12:51:04 AM GMT Build Host: builder10.centos.org Group : System Environment/Daemons Source RPM: openssh-4.3p2-72.el5_7.5.src.rpm Size : 492478 License: BSD Signature : DSA/SHA1, Fri 02 Sep 2011 01:13:01 AM BST, Key ID a8a447dce8562897 URL : http://www.openssh.com/portable.html Summary : The OpenSSH server daemon ------------------------------------------------------ Again, when I look for /var/run/sshd.pid I don't find it. $ cat /var/run/sshd.pid cat: /var/run/sshd.pid: No such file or directory $ sudo netstat -anp | grep sshd tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 2208/sshd $ sudo kill 2208 $ sudo service sshd start Starting sshd: [ OK ] $ cat /var/run/sshd.pid 3794 $ sudo service sshd status openssh-daemon (pid 3794) is running... Is it possible that sshd is restarting and not creating a pidfile for some reason?

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• Can't get virtual desktops to show up on RDWeb for Server 2012 R2

  - by Scott Chamberlain

  I built a test lab using the Windows Server 2012 R2 Preview. The initial test lab has the following configuration (I have replaced our name with "OurCompanyName" because I would like it if Google searches for our name did not cause people to come to this site, please do the same in any responses) Physical hardware running Windows Server 2012 R2 Preview full GUI, acting as Hyper-V host (joined to the test domain as testVwHost.testVw.OurCompanyName.com) with the following VM's running on it VM running 2012 R2 Core acting as domain controller for the forest testVw.OurCompanyName.com (testDC.testVw.OurCompanyName.com) VM running 2012 R2 Core with nothing running on it joined to the test domain as testIIS.testVw.OurCompanyName.com A clean install of Windows 7, all that was done to it was all windows updates where loaded and sysprep /generalize /oobe /shutdown /mode:vm was run on it A clean install of Windows 8, all that was done to it was all windows updates where loaded and sysprep /generalize /oobe /shutdown /mode:vm was run on it I then ran "Add Roles and Features" from testVwHost and chose the "Remote Desktop Services Installation", "Standard Deployment", "Virtual machine-based desktop deployment". I choose testIIS for the roles "RD Connection Broker" and "RD Web Access" and testVwHost as "RD Virtualization Host" The Install of the roles went fine, I then went to Remote Desktop Services in server manager and wet to setup Deployment Properties. I set the certificate for all 3 roles to our certificate signed by a CA for *.OurCompanyName.com. I then created a new Virtual Desktop Collection for Windows 7 and Windows 8 and both where created without issue. On the Windows 7 pool I added RemoteApp to launch WordPad, For windows 8 I did not add any RemoteApp programs. Everything now appears to be fine from a setup perspective however if I go to https://testIIS.testVw.OurCompanyName.com/RDWeb and log in as the use Administrator (or any orher user) I don't see the virtual desktops I created nor the RemoteApp publishing of WordPad. I tried adding a licensing server, using testDC as the server but that made no difference. What step did I miss in setting this up that is causing this not to show up on RDWeb? If any additional information is needed pleas let me know. I have tried every possible thing I can think of and I am just groping around in the dark now. The virtual machines running on testVwHost The configuration screen for RD Services The Windows 7 Pool The Windows 8 Pool This is logged in as testVw\Administrator

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• Clone Windows 7 to bootable USB disk

  - by Geziefer

  I saw some posts here having a similar topic, but I haven't quite found what I am looking for. All I need to do is transfer my Windows 7 (Professional, 64bit) which is installed on an internal disk on my Dell Latitude laptop to an external USB disk in order to have my original system available for booting while installing a new system on the internal disk, which is essential since I need a working project environment for work in case the new system takes some days until fully completed. I already tried a disk clone with Acronis and Clonezilla, but in the 1st case it didn't even booted the clone and in the 2nd case it booted, but stopped with a bluescreen (and rebooted too fast to be able to see any error code). So has someone done successfully what I am trying to do and can help me out here?

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• Audio services in windows 7

  - by infant programmer 'Aravind'

  In an attempt of blocking a viral service on my system (which was restarting my system automatically for every 30 seconds), I disabled all the services, and later enabled trustworthy services only. (note: Hide all microsoft services didn't work blocking the auto restart so I disabled all services) Now I have been succeeded in blocking automatic restart and I am able to access internet and all other necessary stuffs. Well, however system audio is mute(definitely because a necessary service is not running). Now I need a list of services that need to be started (set automatic) on windows 7.

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• Network monitoring solution

  - by Hellfrost

  Hello Serverfault ! I have a big distributed system I need to monitor. Background: My system is comprised of two servers, concentrating and controlling the system. Each server is connected to a set of devices (some custom kind of RF controllers, doesnt matter to my question), each device connects to a network switch, and eventually all devices talk to the servers, the protocol between the servers and the devices is UDP, usually the packets are very small, but there are really a LOT of packets. the network is also somewhat complex, and is deployed on a large area physically. i'll have 150-300 of these devices, each generating up to 100+ packets per second, and several network switches, perhaps on 2 different subnets. Question I'm looking for some solution that will allow me to monitor all this mess, how many packets are sent, where, how do they move through the network, bandwidth utilization, throughput, stuff like that. what would you recommend to achieve this? BTW Playing nice with windows is a requirement.

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• How to fix Windows 2008 R2 BOOTMGR is missing

  - by RichardTheKiwi

  BOOTMGR IS MISSING PRESS CTRL+ALT+DEL TO RESTART Note: This is a VM on VMWare ESX server, but that should not matter I put in the 2008 R2 x64 install dvd and can get to recovery, but it lists no Operating Systems. Clicking on Next brings me to +=========================== System Recovery Options +=========================== Choose a recovery tool Operating system: Unknown or (Unknown) Local Disk ..... Command Prompt I start the command prompt, go to C:\ and perform a dir /a Apart from files I put there myself, these are showing $Recycle.Bin Documents and Settings [C:\Users] Program Files Program Files (x86) ProgramData Recovery System Volume Information Temp Users Windows Where to go next? Is it like the NTLDR problem with Windows 2003 where I can just drop a file in there and it will be hunky dory again?

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• VMWare shared folder out of sync

  - by JochenJung

  After booting the guest system, the shared folders are in sync and all works well. But as soon, as I make a change to one of the files on my host system (Windows 7), the file on the guest system (Ubuntu) looses its last characters and still has the old version. So the actual change is not synced. However the version on the guest gets truncated. If I delete the file on the host and create a new one with new content, everything is in sync again. It all started happening when I updated VMWare player 6.0.1. And its happening for my Ubuntu guests only (Redhat works fine). How can I tell VMware tools to force a sync on the shared folders? Host: Windows 7 Guest: Ubuntu 12.04.3 LTS VMWare: 6.0.1 build-1379776 VMWare-Tools: VMwareTools-9.6.1-1378637.tar.gz

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