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• Macbook Pro (SantaRosa) internal display not detected by graphics card, external monitor OK

  - by BLAU

  My MacBook Pro (2.4 Ghz, Santa Rosa with infamous nVidia card) acts strange. It shows the normal gray screen with Apple logo and animation flawlessly during start up but the internal display goes black without any rendering at all when all is loaded. (shining a light on display show nothing) If an external monitor is connected through the DVI port it will remain black during start up and then show the desktop as the internal display goes black. This happens both while booting to Mountain Lion and Windows XP. I have checked "About my Mac" and only the external display is listed. The same is the case if I use the nVidia Control panel in Windows XP. My questions: Is this a hardware problem or is it related to software maybe even firmware? What controls the display during start up, graphics card or something else?

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• windows 2000 freezing during large disk write

  - by robert

  We have a windows 2000 sp4 server which freezes up for about 1 minutes while its web-app does a ~500mb write operation. I can see the webapp start to do I/O activity (through process explorer) then the RDP session becomes unresponsive, you can click on windows and buttons but nothing happens. When the disk write finally finishes the session 'catches up' on all the mouse clicks you did during the freeze in a mad flurry of window activity and the server returns to normal. During the freeze the web-app stops as well. The same behaviour happens on the console of the server. (so I know its not a network thing) Nothing appears in the Event logs. Its like nothing happened. I have upgraded all the HP hardware drivers to the latest proliant support pack. And also run a HP hardware diagnostics which found nothing wrong. What would cause a disk write to lock the rest of the OS?

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• How do I elevate privileges when running appcmd from a nant task?

  - by Rune

  We are using a Windows 7 box as build server. As part of our continuous integration process I would like to stop and start an IIS 7 website. I have tried doing this from the command line using appcmd: appcmd start site "my website" However, this only works if I start the console window by choosing "Run as Administrator", so it won't work out-of-the-box from NAnt etc. How do I script appcmd to be run with elevated privileges (or am I going about this in the wrong way)? Thank you.

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• Disable/configure Back and Forward through mouse wheel in Internet Explorer

  - by Subtwo

  I have a problem with Internet Explorer (version 7 on Windows XP). Sometimes (not always) when you use the mouse wheel to scroll a page up/down it instead chooses to go back or forth in the web browsing history. This behavior is the same as when you hold the shift-key simultaneously using the wheel. My guess is that Internet Explorer somehow gets misled by something and thinks that I'm actually pressing shift. This is in turn maybe an artifact of the fact that this particular session is a remote-desktop session originating from Linux (Ubuntu). Needless to say the problem can be quite irritating and the alternative of completely turning off the wheel functionality doesn't seem like an option as other applications would suffer greatly from this. Anyway back to my question(s): Is it possible to map the shift+wheel to a simple wheel event for Internet Explorer? Is it possible to disable the shift+wheel event for Internet Explorer? Any suggestions are greatly appreciated.

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• Is it secure to store the cert/key on a private AMI?

  - by Phillip Oldham

  Are there any major security implications to bundling a private AMI which contains the private key/certificate & environment variables? For resiliency I'm creating an EC2 image which should be able to boot and configure itself without any intervention. After boot it will attempt to: Attach & mount specific EBS volume(s) Associate a specific Elastic IP Start issuing backups of the EBS volume(s) to S3 However, to do this it will need the private key/pem files and will need certain environment variables to be available on start-up. Since this is a private AMI I'm wondering if it will be "safe" to store these variables/files directly in the image so that I don't need to specify any user-data information and can therefore start a new instance remotely (from my iPhone, if needed) should the instance be terminated for any reason.

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• Schedled Tasks and Environment Variables

  - by Andrew J. Brehm

  I have a scheduled task, a batch file, that uses an environment variables which is set system-wide. On server 1, the scheduled task runs under a domain account and the environment variable works. The environment variable also exists in my session and when I runas as the service account. On server 2, the scheduled task runs under a different domain account and the environment variable DOES NOT work. However, the environment variable does exist in my session and when I runas as the service account. On both servers the environment variable has been set system-wide by the same script originally. The script runs again every now and then and as far as I can see noone has tempered with the environment variable. The scheduled tasks are set up identically on the two servers (using the same XML file) and the two service accounts are identically configured (as far as I know). What am I doing wrong?

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• Can I fork a copy command on ReadyNAS SSH?

  - by DanyW

  I have a ReadyNAS 102 with a couple of USB drives attached. There were times I wanted to copy files between volumes. Unfortunately I have also accidentally cut off copying process by accidentally closing off the SSH sessions. Is it possible for me to fork a cp or mv process on SSH? As it currently stands when I close the SSH session, be it by accidentally closing the terminal window or closing my laptop screen and putting it to sleep, the copy process stops. Can I do something like cp ~/blah /some/other/path & and have the process keep running to completion in the background even if the SSH session is terminated?

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• Add directory to $PATH if it's not already there

  - by Doug Harris

  Has anybody written a bash function to add a directory to $PATH only if it's not already there? I typically add to PATH using something like: export PATH=/usr/local/mysql/bin:$PATH If I construct my PATH in .bash_profile, then it's not read unless the session I'm in is a login session -- which isn't always true. If I construct my PATH in .bashrc, then it runs with each subshell. So if I launch a Terminal window and then run screen and then run a shell script, I get: $ echo $PATH /usr/local/mysql/bin:/usr/local/mysql/bin:/usr/local/mysql/bin:.... I'm going to try building a bash function called add_to_path() which only adds the directory if it's not there. But, if anybody has already written (or found) such a thing, I won't spend the time on it.

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• Capture the active window to jpg using C# ?

  - by user29004

  Hello, I am creating a Windows Application that capture the all users session details. I want to track that how many users are connected with my machine using RDP session. Want to log all their activity with screen shot. So I would like to know how can I capture the active screen. I tried 'RUNAS' but its show me current screen shot where I run. I am able to use user's application data but not get Actual screen. I also tried LogonUser, CreateProcessAsUser but not getting actual point. So please let me know how can I do it ? I used 'cassia' google library to list all the current logged user. Thanks Laxmilal

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• Upstart: accept user input to switch xorg.conf

  - by Utaal

  Hi all! I'm trying to get a startup script requiring user input running before gdm starts (the script should allow me to choose from a list of xorg.conf's the one I'd like to use for the current session). Already tried creating a pregdm.conf in /etc/init, containing: start on filesystem stop on runlevels [06] # ... console output script # script that uses read to gather user input and replaces xorg.conf with the selected one end script and changing start on in /etc/init/gdm.conf to: start on (filesystem and started dbus and started pregdm and (drm-device-added card0 PRIMARY_DEVICE_FOR_DISPLAY=1 or stopped udevtrigger)) Echos are displayed in console but I can't make it wait for user input: gdm is started straight away. Any pointers? Thanks a lot

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• Windows 7: This notification icon is currently not active

  - by icelava

  Some time this week, without any major change done to one of my x64 Windows 7 computers, the Media eject icon goes missing in the systray taskbar area. When I attempt to reset the notification settings, i see this "This notification icon is currently not active" info warning Initially KB945011 managed to restore the icon after a reboot. But now it appears to have disappeared again. It seems to have disappeared (cannot really confirm) after I unlock the physical logon session (which was previously rerouted to a virtual Remote Desktop session). Anybody have knowledge on possible causes to this missing behaviour? UPDATE 1 Feb 11 It seems that happens often when I remote desktop to the computer, I see it from the remote screen, but when i unlock the screen physically, it disappears. It would reappear when I connect to remote desktop again. Hmmmmm.

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• LSB Script: how do i know if something goes wrong?

  - by ianaz

  How do I know if a LSB script fails to load or where do I check the log of the lsbs scripts? I added two scripts with the following command: update-rc.d scriptname defaults And just one launches the things I need. It does not seem to be a script error since if I launch it with /etc/init.d/scriptname it works. This is my script: #!/bin/bash ### BEGIN INIT INFO # Provides: nodes # Required-Start: $remote_fs $syslog # Required-Stop: $remote_fs $syslog # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: Starts all node apps # Description: Starts all node apps like AAM, AMT,... ### END INIT INFO echo "Launch Node applications with forever" export PATH=/usr/local/bin:$PATH # Starts the redis server redis-server # Starts AAM forever -o /var/log/AAM.log -e /var/log/AAM.log --spinSleepTime 2000 -m 5 start /var/nodejs/AAM/app.js

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• Terminal Server Install -- Add/Remove Program Message on NonAdministrator Machines

  - by Brandon

  First time poster... My company uses terminal services for one of our remote offices. Data is kept on a different server. OS is Windows Server 2003. Last week, they needed to purchase a program and have it installed on terminal server, which was done. An administrator session was started, the TS was put into install mode and the program was installed. The TS was then put back into execute mode. The install did not require a reboot. Since then, when any user who does not have administrator privileges initiates a remote session and logs in they get a security message that says "Add / Remove programs has been restricted. Please contact your system administrator." The only option is to click OK, which everyone does and after that there are no issues. Anyone have any idea why this is happening and how to fix? Thanks!

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• Thin web server - single or multiple instances per IP address:port?

  - by wchrisjohnson

  I'm deploying a rack/sinatra/web socket app onto several servers and will use thin as the web server (http://code.macournoyer.com/thin/). There are almost no views to show, so I am not front-ending it with a traditional web server like Apache or nginx. In general, you see thin started and the underlying config file for it has the number of server instances to start, say 3, and the port to start with, say 5000. So, in my example, when thin starts, it starts up three instances on a range of ports, starting on port 5000. If I have a series of virtual machines, say 3, 6, 9, etc. that I treat as a cluster, would/should I choose to start a single thin instance on each VM, or multiple instances on each VM? Why? Thanks - Chris

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• Getting error while starting tomcat?

  - by ram

  For my Tomcat installation process case is 1. cd /home/mpatil/Downloads/ 2. tar zxvf apache-tomcat-6.0.37.tar.gz 3. cd apache-tomcat-6.0.37/bin 4. ./startup.sh 5. tail -f /home/mpatil/Downloads/apache-tomcat-6.0.37/logs/catalina.out for `5` command results : [root@localhost bin]# tail -f /home/mpatil/Downloads/apache-tomcat-6.0.37/logs/catalina.out Nov 08, 2013 12:04:04 PM org.apache.catalina.startup.HostConfig deployDirectory INFO: Deploying web application directory docs Nov 08, 2013 12:04:04 PM org.apache.coyote.http11.Http11Protocol start INFO: Starting Coyote HTTP/1.1 on http-8080 Nov 08, 2013 12:04:04 PM org.apache.jk.common.ChannelSocket init INFO: JK: ajp13 listening on /0.0.0.0:8009 Nov 08, 2013 12:04:04 PM org.apache.jk.server.JkMain start INFO: Jk running ID=0 time=0/115 config=null Nov 08, 2013 12:04:04 PM org.apache.catalina.startup.Catalina start INFO: Server startup in 3036 ms and i tried in browser like http://locahost:8080/ nothing comming why.whats the wrong in my command or i did any wrong in my commands pls tel me

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• How to restrict ssh port forwarding, without denying it?

  - by Kaz

  Suppose I have created an account whose login shell is actually a script which does not permit an interactive login, and only allows a very limited, specific set of commands to be remotely executed. Nevertheless, ssh allows the user of this account to forward ports, which is a hole. Now, the twist is that I actually want that account to set up a specific port forwarding configuration when the ssh session is established. But it must be impossible configure arbitrary port forwarding. (It is an acceptable solution if the permitted port forwarding configuration is unconditionally established as part of the every session.)

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• How to add a service to the S runlevel in Debian?

  - by MasterM

  I have the following script (what it does exactly is not important): #!/bin/sh -e ### BEGIN INIT INFO # Provides: watchdog_early # Required-Start: udev # Required-Stop: # Default-Start: S # Default-Stop: # X-Interactive: true # Short-Description: Start watchdog early. ### END INIT INFO # Do stuff here... I insert it into the S runlevel by invoking: insserv watchdog_early The aproriate link is created in /etc/rcS.d: S04watchdog_early -> ../init.d/watchdog_early and /etc/init.d/watchdog_early is executable (has mode 755). Despite all this, it is NOT being run at boot. Why?

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• How to run a process and completely detach it of its parent shell

  - by Bicou

  I'm running a program on a linux server that will take days to complete. I'm launching it from my workstation from an SSH terminal, as this program is command-line only. I want to be able to do all of these : launch that program, redirect standard outputs to files, exit my SSH session without making this terminate the process. I thought about $ ./MyProg.csh -params -foo -bar </dev/null 1>~/out.log 2>~/err.log & However, the process is terminated the moment I close my SSH session. My workstation is running Windows XP, and I cannot guarantee its uptime over several days, which is required for the processing of my data on the Linux server. As you may have noted, my program requires to be launched from CSH. Is it possible to do this ? Thanks.

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• Outlook 2010 on Windows 7 crashes - ieframe.dll

  - by Bryan

  Outlook 2010 is crashing rather randomly, not at any specific time like opening a preview pane or message. Event viewer gives the following Faulting application name: OUTLOOK.EXE, version: 14.0.6131.5000, time stamp: 0x509b1020 Faulting module name: ieframe.dll, version: 9.0.8112.16464, time stamp: 0x50ec98f5 Similar events have been logged only with URLMON.DLL, but with ieframe.dll more frequent. I'm looking where to start with this problem, and I'm starting with running outlook in safe mode using Outlook /safe from the start menu. Further complicating this issue are 2 programs syncing email to other calenders. Should I start with these additional programs that are syncing email as being possible culprits? Or does this have to do with Internet Explorer because of the DLL associated with these crashes? I've tried regsvr32 with both DLL's mentioned, with ieframe being unsuccessful. So my question is: what's causing Outlook to crash?

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• Mitigating the 'firesheep' attack at the network layer?

  - by pobk

  What are the sysadmin's thoughts on mitigating the 'firesheep' attack for servers they manage? Firesheep is a new firefox extension that allows anyone who installs it to sidejack session it can discover. It does it's discovery by sniffing packets on the network and looking for session cookies from known sites. It is relatively easy to write plugins for the extension to listen for cookies from additional sites. From a systems/network perspective, we've discussed the possibility of encrypting the whole site, but this introduces additional load on servers and screws with site-indexing, assets and general performance. One option we've investigated is to use our firewalls to do SSL Offload, but as I mentioned earlier, this would require all of the site to be encrypted. What's the general thoughts on protecting against this attack vector? I've asked a similar question on StackOverflow, however, it would be interesting to see what the systems engineers thought.

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• Percona system tables corrupted.

  - by Anand Jeyahar

  I am having problems setting up mysql replication with a percona as server. accidentally, took a full dump from mysql and restored it on percona and then started,the replication. now when i stop slave and start slave, i am getting the error "[ERROR] Failed to open the relay log './s5-bin.000003' (relay_log_pos 2029993) 110103 9:15:59 [ERROR] Could not find target log during relay log initialization " But show local variables shows the relay_log variable as set in the cnf file.. But the relay-log variable is set to slave-relay-bin alright. I am able to start mysql as a service. But mysqld_safe fails with error "110103 9:19:39 [ERROR] /usr/sbin/mysqld: Can't create/write to file '/var/run/mysqld/mysqld.pid' (Errcode: 2) 110103 9:19:39 [ERROR] Can't start server: can't create PID file: No such file or directory " Am now lost as to what is the problem.

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• How to use ssh-agent (and graphic passphrase dialog) in Kubuntu 10.10?

  - by halo

  I have recently switched from Ubuntu to kubuntu, both version 10.10. Unfortunately in KDE the ssh passphrase dialog doesn't work out of the box. Everytime my ssh private key is used I need to enter my password. This is neither secure nor comfortable. I have done comprehensive research on the net but only found out dated documentation. Several things I tried didn't work out. Current status: SSH setup working with direct passphrase input ssh-agent running in X session $SSH_AUTH_SOCK set to ssh-agent's socket in X session How to enable ssh-agent for keeping the passphrase in memory for ~15mins and as a bonus always use a graphical dialog for its input? I use asymmetric SSH key pairs for pushing/pulling in Git VCS logging remotely into different server systems

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• Manually forcing TCP connection to retry

  - by Vi.

  I have a TCP connection (SSH session to some computer for example) Network suddenly goes down and drops all packets (disconnected cable, out of range). TCP resends packets again and again, retrying with increasing delays. I see the problem and plug the cable back (or restore network somehow). TCP connection finally successfully resends some packet and continues. The problem is that I need to wait for a some timeout on point 5. I want to use my opened SSH session now and not wait for 5-10 seconds until it finds out that connection is working again. How to force all TCP connections to resend data without delays in GNU/Linux?

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• "service"-command and environment variables

  - by varesa

  I am trying to start a service that requires a env. variable to be set to certain path. I set this variable in "/etc/profile.d/". However when I start this service using the service command, it doesn't work. man service: service runs a System V init script in as predictable environment as possible, removing most environment variables and with current working directory set to /. So it seems that service is removing my variables. How should I set the variables up to keep them from being removed. Or is that something i should not do. I could start the service manually using the init-scripts, or even hardcode the path into the script, but I'd like to know how to use it with the service command.

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• Windows 7 strange boot issue

  - by JL

  Recently I installed an SSD drive, its now my primary boot drive (OCZ Vertex Turbo 60GB). I'm running Win 7 (64bit). Now I am not sure exactly where the fault lies, but when I do a restart from within Windows, the computer will boot and enter into the loading windows portion, however won't progress beyond there. My solution is to manually hit the reset switch, and then when it boots it enters into a windows menu that offers a start up repair or start windows normally. I select start windows normally, and then it boots fine. I am not entirely sure why I can't just restart the computer from windows normally though. The SSD drive works perfectly, and not even sure if it is the cause to this problem. Any ideas on this?

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