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• Automatically change resolution when not in dock

  - by jwir3

  I have Ubuntu 11.04 (yep, I know it's old news) on my Lenovo W520. At home, I have a dock with dual monitors. I have a pretty decent setup - things work almost perfectly (hence the reason I'm reluctant to upgrade... that and I'm not 100% sold on Unity). Anyway, the only annoyance I have is that when I'm on travel, I use the laptop screen. When I un-dock the laptop, I need to manually go into nvidia x-server settings and change the resolution from 'Auto' to 1920x1200, or it will think I have two screens, and my mouse pointer will be able to go way off the left side of the screen. This isn't a big deal, but I need to do it every time I restart the x-server (so if I reboot, or have to kill it, etc...) What would be really nice is if there was a way for it to automatically detect whether or not there is external monitors (which it seems to do already), and switch into the mode I select, depending on which monitors are connected. Is there any way to accomplish this? I've posted my xorg.conf file for reference. # nvidia-settings: X configuration file generated by nvidia-settings # nvidia-settings: version 270.29 (buildd@allspice) Fri Feb 25 14:42:07 UTC 2011 # nvidia-xconfig: X configuration file generated by nvidia-xconfig # nvidia-xconfig: version 275.19 ([email protected]) Tue Jul 12 18:35:38 PDT 2011 #Section "Monitor" # Identifier "Monitor1" # VendorName "Lenovo" # ModelName "ThinkpadLCD" # #HorizSync 28.0 - 33.0 # #VertRefresh 43.0 - 72.0 # #Option "DPMS" #EndSection Section "ServerLayout" Identifier "Layout0" Screen 0 "Screen0" 0 0 InputDevice "Keyboard0" "CoreKeyboard" InputDevice "Mouse0" "CorePointer" Option "Xinerama" "0" EndSection Section "InputDevice" Identifier "Mouse0" Driver "mouse" Option "Protocol" "auto" Option "Device" "/dev/psaux" Option "Emulate3Buttons" "no" Option "ZAxisMapping" "4 5" EndSection Section "InputDevice" # generated from default Identifier "Keyboard0" Driver "kbd" EndSection Section "Monitor" Identifier "Monitor0" VendorName "Unknown" ModelName "DELL U2410" HorizSync 30.0 - 81.0 VertRefresh 56.0 - 76.0 Option "DPMS" EndSection Section "Device" Identifier "Device0" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "Quadro 1000M" Option "RegistryDwords" "EnableBrightnessControl=1" EndSection Section "Screen" # Removed Option "metamodes" "DFP-0: nvidia-auto-select +0+120, DFP-6: nvidia-auto-select +1920+0" # Removed Option "metamodes" "DFP-0: nvidia-auto-select +0+120, DFP-5: nvidia-auto-select +1920+0" # Removed Option "metamodes" "DFP-0: nvidia-auto-select +1920+419, DFP-5: nvidia-auto-select +3840+0, DFP-6: nvidia-auto-select +0+0" # Removed Option "metamodes" "DFP-5: nvidia-auto-select +0+0, DFP-6: 1920x1200 +1920+0" Identifier "Screen0" Device "Device0" Monitor "Monitor0" DefaultDepth 24 Option "NoLogo" "True" Option "TwinViewXineramaInfoOrder" "DFP-0" Option "TwinView" "1" Option "metamodes" "DFP-5: nvidia-auto-select +1920+0, DFP-6: 1920x1200 +0+0" SubSection "Display" Depth 24 EndSubSection EndSection

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• Help understanding my hard drive / partitioning situation... Pictures Included! :)

  - by xopenex

  So I have installed windows 7, and two different distros of linux... I have read and tried to understand things like "spanned" "extended" "primary" "swap" "dev/dev2/" "GRUB" "Windows Boot Loader/Manager" etc.... I have a very very limited understanding of all of it! :) I am trying to figure out how to get all OS boot options on one Boot manager (I'm thinking it will be GRUB), because at this point when i turn on my computer, I basically get two booting options (excluding the memtest options etc)... One options is to boot one of my Linux Distros and the second option is to boot my Windows 7. When i go with the first option, Linux boots up... when i go with the second Windows 7 option, I get the "windows boot manager screen" and I can choose Windows 7 or my other installation of Linux (Ubuntu)... In addition, I did not have swap partition from my first installation of Linux, I created it during the installation of my second distro... This is a lot of info for me, but I'm guessing that you linux Gurus, pretty much understand what is going on! Hope my question makes sense.. i will try and simplify... Can i get all 3 OS's optioned to boot from one GRUB? Can i get both Linux distros to use one swap file (I have seen this possible in other threads, but because of how my disk is partitioned, i dont know if i can do this) I hope that i dont have to start all over installing one after the other. Ive got some pics that may help understand my hard drive situation! Thanks guys! :) EDIT... i had some pics, but im a new member.. so cant post them... :( here is a description of the pics... incase i can email them or post later. [grub][3] First Screen I come to after turning on computer... "Ubuntu with linux 3.2.6" (highlighted) fires up Linux perfectly... other choice at bottom of list "Windows 7 (loader) (on dev/sda1)... brings me to the next picture below.. windows boot manager [win boot mngr][6] both options here load the os selected [Disk Manager Windows][1] picture of my hard drive situation through windows disk manager utility [gparted][2] picture of my hard drive situation through "gparted" [mycomp][4] picture of my hard drive situation through "my computer" [paragon][5] one last pic of my hard drive situation through the eyes of "paragon"

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• Problems with cross forest authentication in SQL Reporting

  - by chunkyb2002

  We're currently running an SQL 2008 R2 Cluster with Reporting Services running, all for use with System Center Operations Manager 2007 R2 (RU3). Our users are on a different domains to the SCOM and SQL servers (we have two domains as we are in the process of a domain migration) We have no problems at all with users accessing reports via the SCOM Console or the Web interface if they are on the new domain which runs at 2008 R2 functional level. However users on the old domain (which runs at a 2003 functional level) cannot access reports on SCOM or via the web interface (http://sqlserver/reports) The error we get is: An error occurred when invoking the authorization extension. (rsAuthorizationExtensionError) For more information about this error navigate to the report server on the local server machine, or enable remote errors Taking the errors advise we logged on to the SQL server as a user on the old domain (which works fine!) and then try to authenticate with the reporting via the web interface which produces this most useful of errors: An error occurred when invoking the authorization extension. (rsAuthorizationExtensionError) The creator of this fault did not specify a Reason. Things we've tried: Recreating the trust between domains Ensuring the SQL Reporting service account was a member of Windows Authorization Access Group on the 2003 domain Added users on the 2003 domain explicitly to the Reporting Users group on the SQL Server Has anyone come across this issue before perhaps in a different scenario? If so how was it resolved? Thanks in advance for any help.

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• Cannot create a project TFS 2012 - TF218027

  - by GrandMasterFlush

  I've just installed TFS2012 and am trying to create a new project in the default collection via Visual Studio 2012 but I keep getting this error message: TF218027: The following reporting folder could not be created on the server that is running SQL Server Reporting Services: /TfsReports/DefaultCollection. The report server is located at: http://<servername>/Reports. The error is: The permissions granted to user '<domain>/grandmasterflush' are insufficient for performing this operation.. Verify that the path is correct and that you have sufficient permissions to create the folder on that server and then try again. I've checked the permissions and my user is a member of the Project Collection Administrators and the Project Collection Administrators group has the 'Create new project' permission set to allow. The only thing I think it might be is that the user that I created during installation for the Sharepoint access and reports viewing does not have permission to write to the reports folder, however if I select "Do not configure a SharePoint site at this time" then I still get the error messages. I can't find the reports folder to check the permissions either. TFS is using an instance of SQL 2012 that was already on the machine when TFS was installed. Can anyone see what I'm doing wrong please?

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• How do I install and use the cli53 tools on Windows?

  - by pavlos

  I'm trying to find the simplest way to import a large number of BIND zone files in to Route 53. I've had a quick look at the AWS CLI and AWS Tools for Windows PowerShell but they don't seem to include a zone file import option like the AWS Route53 GUI does. The cli53 utility on the other hand does, but is written in Python and appears to have a series of pre-requisites to get going which I'm having troubles working out for Windows. I can find plenty of examples of setting it up under Linux but only one reference to a PowerShell example here, but it doesn't explain how to install cli53 in the first place. The other option I'm exploring is to use the BIND to Amazon Route 53 Conversion Tool perl script to first convert the zone files to the Route53 CreateHostedZoneRequest XML format and then use the AWS New-R53HostedZone PowerShell cmdlet to import the zones. After the zones have been imported I'll be looking at running a script to validate what has been created in Route53 matches with the existing nameserver prior to updating each domains nameserver records - I was planning on whipping something up using the new PS4.0 Resolve-DnsName cmdlet, but let me know if you have any better suggestions. Any assistance would be greatly appreciated - thanks. (By the way, I had more reference links in my post but ServerFault won't allow me to post more than 2 links being a new member; and for this same reason I also can't comment on Vasili's example in the other linked thread)

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• ADFS 2.1 proxy trust establishment error

  - by Tommy Jakobsen

  I'm trying to install an ADFS proxy. In our intranet we have a ADFS 2.1 server running on Windows 2012 which is working fine. Now we're trying to deploy a proxy to this one for internet access, using Windows 2012 R2's Web Application Proxy. I'm getting the following error on the proxy server, event ID 393: Message : An error occurred while attempting to establish a trust relationship with the Federation Server. An error occurred when attempting to establish a trust relationship with the federation service. Error: Forbidden Context : DeploymentTask Status : Error I'm not getting any errors on the ADFS server. I've tried with different credentials. The ADFS service account, a domain administrator who is a member of the local administrators group on the ADFs server, and the local administrator account on the ADFS server. Same error message. Both port 80 and 443 is accessible from the proxy server to the internal ADFS server, and I can access the ADFS metadata endpoint from the proxy server. I'm using the same trusted SSL certificate (wildcard) on both machines. Do you have any ideas that can help me troubleshoot this problem?

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• UNC Path fails by IP "no network provider accepted the given network path", but works using hostname

  - by BoyMars

  I have an unusual problem with a Windows Server 2003 (Standard x86) box. It appears the machine will not accept connections to its shares (locally and from other domain member servers) by using its ip address in a UNC path. The error returned is: "no network provider accepted the given network path" This is the case with the machine's ip address: \\10.0.8.x and even the loopback address: \\127.0.0.1 \\localhost does not work... but using the hostname (fqdn or not) works: \\server & \\server.domain.local The local windows firewall for this server is off, ping/rdp/other services respond fine using the IP address. The following services are running and have been restarted: Computer Browser Workstation Server The server itself has been rebooted too. Event 8032 in the system log indicates that: The browser service has failed to retrieve the backup list too many times on transport \Device\NetBT_Tcpip_{29A6A925-AFB3-47E2-BA59-DDA086DEAE7A}. The backup browser is stopping. The domain controller has not been restarted, no other servers have experienced this problem, yet there are a number of browser (8021) related errors in the logs on this server. Does anyone have any suggestions? I would like to avoid rejoining this server to the domain if possible.

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• Domain Trust Issues When Setting Up TFS 2010 on Windows Server 2008 R2

  - by Chris Reynolds

  I am trying to setup Team Foundation Server 2010 on Windows Server 2008 R2 using a single server configuration. During the "Readiness Checks" phase of the configuration wizard, I am facing an issue that i preventing me from communicating with the domain controller (which is Windows Server 2000). [ System Checks ] TF255435: This computer is a member of an Active Directory domain, but the domain controllers are not accessible. Network problems might be preventing access to the domain. Verify that the network is operational, and then retry the readiness checks. Other options include configuring Team Foundation Server specifying a local account in the custom wizard or joining the computer to a workgroup. http://go.microsoft.com/fwlink/?LinkID=164053&clcid=0x409 After reading the log file, the main issue I am encountering appears to be: The trust relationship between this workstation and the primary domain failed. (type SystemException) I have read in several other locations that the solution to this issue is to: Leave the domain Restart Join a workgroup Restart Rejoin the domain Unfortunately, I have tried this several times now and the issue persists. Is there anything I can try on the either the client machine or the domain controller that may help solve my issue?

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• Exchange 2010 add mailbox server to DAG error

  - by Michael

  Hello, i'm having some problems when adding a second mailbox server to my DAG in Exchange 2010. The test setup goes like this: 1x windows server 2008 (DC/DNS) 2x windows server 2008 (Exchange 2010) I have made sure all services are up and running and that the "Exchange Trusted Subsystem" account is set as a local admin. When i create a DAG i can add the first mailbox server (A) without any problems, but when i go to add the second (B) it gives me an error saying "Unable to contact the Cluster service on 1 other members (member) of the Database availability group. It does the same if i add (B) first and then try to add (A). Here is a part of the log file: [2010-04-05T15:00:27] GetRemoteCluster() for the mailbox server failed with exception = An Active Manager operation failed. Error: An error occurred while attempting a cluster operation. Error: Cluster API '"OpenCluster(EXCHANGE20102.area51.com) failed with 0x6d9. Error: There are no more endpoints available from the endpoint mapper"' failed.. This is OK. [2010-04-05T15:00:27] Ignoring previous error, as it is acceptable if the cluster does not exist yet. [2010-04-05T15:00:27] DumpClusterTopology: Opening remote cluster AREA51DAG01. [2010-04-05T15:00:27] DumpClusterTopology: Failed opening with Microsoft.Exchange.Cluster.Replay.AmClusterApiException: An Active Manager operation failed. Error: An error occurred while attempting a cluster operation. Error: Cluster API '"OpenCluster(AREA51DAG01.area51.com) failed with 0x5. Error: Access is denied"' failed. --- System.ComponentModel.Win32Exception: Access is denied --- End of inner exception stack trace --- Any help would be really appreciated, thanks.

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• routing table permissions under Windows 7 and openvpn

  - by pilcrow

  My ovpn client, 32-bit OpenVPN 2.1.1 on 64-bit Windows 7 Pro, cannot accept routes pushed to it by my remote endpoint ovpn server. This happens even if I invoke OpenVPN as a member of Administrators, and whether or not I've specified script-security 2 (as suggested by [this question][2]). Mon Mar 29 12:57:19 2010 Notified TAP-Win32 driver to set a DHCP IP/netmask of 192.168.254.3/255.255.255.0 on interface {8BE2E9CF-F4C9-4A5E-98FD-E12DF1B6C3A4} [DHCP-serv: 192.168.254.3, lease-time: 86400] Mon Mar 29 12:57:19 2010 NOTE: FlushIpNetTable failed on interface [14] {GUID} (status=5) : Access is denied. Mon Mar 29 12:57:24 2010 TEST ROUTES: 8/8 succeeded len=8 ret=1 a=0 u/d=up Mon Mar 29 12:57:24 2010 C:\WINDOWS\system32\route.exe ADD 172.20.1.0 MASK 255.255.255.0 192.168.254.1 Mon Mar 29 12:57:24 2010 ROUTE: route addition failed using CreateIpForwardEntry: Access is denied. [status=5 if_index=14] Mon Mar 29 12:57:24 2010 Route addition via IPAPI failed [adaptive] Mon Mar 29 12:57:24 2010 Route addition fallback to route.exe Mon Mar 29 12:57:24 2010 ERROR: Windows route add command failed [adaptive]: returned error code 1 ... and so on for each specific route the server pushes out. It doesn't seem right to me that the administrative user, the one configured at Windows 7 install time, should need further privileges. What am I missing?

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• The boot selection failed because a required device is inaccessible 0xc000000e

  - by bbodenmiller

  A family member of mine recently went on vacation and turned off their computer, something they normally do not do, upon returning home it would not turn on and now returns the error message below. Generally friends and family come to me for help with computers and I have no problem, however this time I am a bit stumped. Any suggestions would be greatly appreciated. As you can see the error message is: Status: 0xc000000e Info: The best selection failed because a required device is inaccessible. Before going to this error message it briefly flashes the Windows loading screen. I have been able to confirm through the Windows RE Command Line and the dir command that the C: drive is accessible and likely is just suffering a bootup issue. I have tried: Launching the repair process discussed in the error message three times however each time it requires a restart and then returns to the same error message. Changing the boot order to be hard drive first Getting into safe mode; F8 just results in the same error message before I can get to the menu to select safe mode I have checked to make sure the BCD (bcdedit, Boot Configuration Data) is still intact as per https://www.symantec.com/business/support/index?page=content&id=TECH160475 I plan to try (but would like additional comments on): sfc /scannow; requires a restart and thus will likely result in the error message again A memory scan Bootrec as per http://support.microsoft.com/kb/927392#method1 Swapping IDE cables/ports Resetting the BIOS I noticed others with similar issues around the web are dual-booting however this machine is not setup in a dual-boot environment. Additionally at one point this error message supposedly showed up before I started working on the computer: The instruction at 0xfbe2584d referenced memory at 0x00000008. The memory could not be read. As previously stated any additional suggestions or words of advice would be greatly apprecaited.

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• Why am I getting a warning that windows is logging on with a temporary profile to run a task scheduler task?

  - by Dan C

  I am having a strange problem with the Windows Server 2008 Task Scheduler. I have to run a small command-line application every few minutes. This application just executes a quick web service call on the localhost and adds an entry to a log file; so it should not need anything special in terms of permissions. First, I created a new user account "my_scheduler" just for the task. This account is a member of the Users group (not sure what other settings I should turn on/off) and set it's password to not expire. I then create a task to run the application every few minutes. I set it to "Run whether user is logged on or not" and turned on "Do not store password. The task will only have access to local resources" (I did this since it's not hitting anything on the network. I did not turn on "Run with highest privileges" since it does not seem to need them. I set the schedule to "After triggered, repeat every 30 minutes for a duration of 1 day" and "Allow task to be run on demand" (no other settings enabled). However, I notice that in the Event Log, I see a bunch of these warnings whenever the task is run: "Windows cannot find the local profile and is logging you on with a temporary profile. Changes you make to this profile will be lost when you log off." Even though I get the warning, the task is executing (I see the log entries appearing). Another (possibly related) issue is that I also see that it's starting multiple copies of the task (within a few seconds of each other) even though it should only start one. This is also a big problem. Any idea how I can fix this? Thanks in advance, Dan

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• How to get remote firewall administration working with Windows Server Core 2008 R2?

  - by Daniel15

  I'm setting up a Windows Server Core 2008 R2 installation in a VMware virtual machine before setting it up on a live VPS. I've gotten remote administration via MMC working on my computer (a PC running Windows 7) for things like event logs, but I can't seem to get the firewall administration working. No matter what I do, I get the following error mesage: You do not have the correct permissions to open the Windows Firewall with Advanced Security console. You must be a member of the Administrators group or the Network Operators group to perform this task. For more information, contact you system administrator. Error code: 0x5. I've used cmdkey to add valid server credentials on my computer, and enabled remote management with the following commands: netsh advfirewall firewall set rule group="remote administration" new enable=yes netsh advfirewall firewall set rule group="windows firewall remote management" new enable=yes netsh advfirewall set currentprofile settings remotemanagement enable I am not running on a domain (just a workgroup), this is the only Windows Server 2008 computer I have. I've tried turning off the firewall completely, but remote administration is still failing How do I debug this issue? Does anyone know how to fix it? I found a few forum topics about it (eg. Remotely managing Windows Firewall on Server Core gives access denied (error 0x5) on Windows Server TechCenter) but they didn't help (I've already tried most of the fixes listed).

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• How to repair multiple KDC an Netlogon errors

  - by Keith Sirmons

  Howdy, I have several erros in the system event log of my single Windows 2003 SP2 domain controller. Multiple member computers on the domain are listed in these errors. I am seeing two similar errors for each computer one second apart in the event log. Event ID 7 Source KDC The Security Account Manager failed a KDC request in an unexpected way. The error is in the data field. The account name was [email protected] and lookup type 0x8. followed by Event ID 7 Source KDC The Security Account Manager failed a KDC request in an unexpected way. The error is in the data field. The account name was MEMBERNAME$ and lookup type 0x8. The Lookup Types are also different, I have 0x8, 0x28, 0x0, 0x20. I am also receiving other authentication errors in the same time frame as all of the KDC errors Event ID 5722 Source NETLOGON The session setup from the computer MEMBERNAME failed to authenticate. The name(s) of the account(s) referenced in the security database is MEMBERNAME$. The following error occurred: Access is denied. I have run dcdiag /v to see if there was something wrong with Active Directory, but all tests passed. I also ran netdiag /v and it appers all of those tests ran. Any ideas on where to start for this issue? Thank you, Keith

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• Configuration management in support of scientific computing

  - by Sharpie

  For the past few years I have been involved with developing and maintaining a system for forecasting near-shore waves. Our team has just received a significant grant for further development and as a result we are taking the opportunity to refactor many components of the old system. We will also be receiving a new server to run the model and so I am taking this opportunity to consider how we set up the system. Basically, the steps that need to happen are: Some standard packages and libraries such as compilers and databases need to be downloaded and installed. Some custom scientific models need to be downloaded and compiled from source as they are not commonly provided as packages. New users need to be created to manage the databases and run the models. A suite of scripts that manage model-database interaction needs to be checked out from source code control and installed. Crontabs need to be set up to run the scripts at regular intervals in order to generate forecasts. I have been pondering applying tools such as Puppet, Capistrano or Fabric to automate the above steps. It seems perfectly possible to implement most of the above functionality except there are a couple usage cases that I am wondering about: During my preliminary research, I have found few examples and little discussion on how to use these systems to abstract and automate the process of building custom components from source. We may have to deploy on machines that are isolated from the Internet- i.e. all configuration and set up files will have to come in on a USB key that can be inserted into a terminal that can connect to the server that will run the models. I see this as an opportunity to learn a new tool that will help me automate my workflow, but I am unsure which tool I should start with. If any member of the community could suggest a tool that would support the above workflow and the issues specific to scientific computing, I would be very grateful. Our production server will be running Linux, but support for OS X would be a bonus as it would allow the development team to setup test installations outside of VirtualBox.

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• Configuration management in support of scientific computing

  - by Sharpie

  For the past few years I have been involved with developing and maintaining a system for forecasting near-shore waves. Our team has just received a significant grant for further development and as a result we are taking the opportunity to refactor many components of the old system. We will also be receiving a new server to run the model and so I am taking this opportunity to consider how we set up the system. Basically, the steps that need to happen are: Some standard packages and libraries such as compilers and databases need to be downloaded and installed. Some custom scientific models need to be downloaded and compiled from source as they are not commonly provided as packages. New users need to be created to manage the databases and run the models. A suite of scripts that manage model-database interaction needs to be checked out from source code control and installed. Crontabs need to be set up to run the scripts at regular intervals in order to generate forecasts. I have been pondering applying tools such as Puppet, Capistrano or Fabric to automate the above steps. It seems perfectly possible to implement most of the above functionality except there are a couple usage cases that I am wondering about: During my preliminary research, I have found few examples and little discussion on how to use these systems to abstract and automate the process of building custom components from source. We may have to deploy on machines that are isolated from the Internet- i.e. all configuration and set up files will have to come in on a USB key that can be inserted into a terminal that can connect to the server that will run the models. I see this as an opportunity to learn a new tool that will help me automate my workflow, but I am unsure which tool I should start with. If any member of the community could suggest a tool that would support the above workflow and the issues specific to scientific computing, I would be very grateful. Our production server will be running Linux, but support for OS X would be a bonus as it would allow the development team to setup test installations outside of VirtualBox.

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• How do I enable the confluence-users group?

  - by M. Joanis

  I've got an issue with Atlassian Confluence. Normal users can't log in, but administrators can... Details below! I manage users using an Apple Open Directory (LDAP). I created two groups: "confluence-administrators" and "confluence-users". I've added team leaders and managers to both groups, and I've added some users to "confluence-users". Everyone in "confluence-administrators" can log in easily. People in "confluence-users" can't log in at all. When I look at the user list (in Confluence), and select a user to examine the list of groups he or she belongs to, I can see that the Confluence Administrators are indeed members of the "confluence-administrators" group, but not a single user is a member of the "confluence-users" group. Not event the Confluence Administrators, which are members of both groups! So I tried to have one of the "confluence-users" log in while watching the Confluence logs. Here's the result: 2012-07-05 14:50:19,698 ERROR [http-8090-11] [core.event.listener.AutoGroupAdderListener] handleEvent Could not auto add user to group: Group <confluence-users> is read-only and cannot be updated at com.atlassian.crowd.directory.DbCachingRemoteDirectory.addUserToGroup(DbCachingRemoteDirectory.java:461) ... So it says the group group is read-only... I'm not sure why it is a problem. Well confluence-administrators too is read-only and it doesn't complain. Some things I don't think are part of the problem: I've synchronized Confluence with LDAP many, many times. I have verified many times that I didn't make a typo while setting the groups on the LDAP server. LDAP synchronization goes well. No errors in the logs (only INFO level log messages). The user exists. Errors in the logs are different when a user doesn't exist. Any help is most welcome!

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• ipvsadm lists a few hosts by IP only, rest by name

  - by dmourati

  We use keepalived to manage our Linux Virtual Server (LVS) load balancer. The LVS VIPs are setup to use a FWMARK as configured in iptables. virtual_server fwmark 300000 { delay_loop 10 lb_algo wrr lb_kind NAT persistence_timeout 180 protocol TCP real_server 10.10.35.31 { weight 24 MISC_CHECK { misc_path "/usr/local/sbin/check_php_wrapper.sh 10.10.35.31" misc_timeout 30 } } real_server 10.10.35.32 { weight 24 MISC_CHECK { misc_path "/usr/local/sbin/check_php_wrapper.sh 10.10.35.32" misc_timeout 30 } } real_server 10.10.35.33 { weight 24 MISC_CHECK { misc_path "/usr/local/sbin/check_php_wrapper.sh 10.10.35.33" misc_timeout 30 } } real_server 10.10.35.34 { weight 24 MISC_CHECK { misc_path "/usr/local/sbin/check_php_wrapper.sh 10.10.35.34" misc_timeout 30 } } } http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/LVS-HOWTO.fwmark.html [root@lb1 ~]# iptables -L -n -v -t mangle Chain PREROUTING (policy ACCEPT 182G packets, 114T bytes) 190M 167G MARK tcp -- * * 0.0.0.0/0 w1.x1.y1.4 multiport dports 80,443 MARK set 0x493e0 62M 58G MARK tcp -- * * 0.0.0.0/0 w1.x1.y2.4 multiport dports 80,443 MARK set 0x493e0 [root@lb1 ~]# ipvsadm -L IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn FWM 300000 wrr persistent 180 -> 10.10.35.31:0 Masq 24 1 0 -> dis2.domain.com:0 Masq 24 3 231 -> 10.10.35.33:0 Masq 24 0 208 -> 10.10.35.34:0 Masq 24 0 0 At the time the realservers were setup, there was a misconfigured dns for some hosts in the 10.10.35.0/24 network. Thereafter, we fixed the DNS. However, the hosts continue to show up as only their IP numbers (10.10.35.31,10.10.35.33,10.10.35.34) above. [root@lb1 ~]# host 10.10.35.31 31.35.10.10.in-addr.arpa domain name pointer dis1.domain.com. OS is CentOS 6.3. Ipvsadm is ipvsadm-1.25-10.el6.x86_64. kernel is kernel-2.6.32-71.el6.x86_64. Keepalived is keepalived-1.2.7-1.el6.x86_64. How can we get ipvsadm -L to list all realservers by their proper hostnames?

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• Getting at fsid under Linux? Or an alternate way of identifying filesystems?

  - by larsks

  In an environment with automounted home directories, such that the same filesystem exported by a fileserver may be mounted multiple times on the client, I would like to authoritatively be able to identify whether two mountpoints are in fact the same filesystem. That is, if the remote server exports: /home And the local client has: # mount fileserver:/home/l/lars on /home/lars type nfs (rw...) fileserver:/home/b/bob on /home/bob type nfs (rw...) I am looking for a way to identify that both /home/lars and /home/bob are in fact the same filesystem. In theory this is what the fsid result of the statvfs structure is for, but in all cases, for both local and remote filesystems, I am finding that the value of this structure member is 0. Is this some sort of client-side issue? Or do most modern NFS servers simply decline to provide a useful fsid? The end goal of all of this is to robustly interpret the output from the quota command for NFS filesystems. For example, given the example above, running quota as myself may return something like: Disk quotas for user lars (uid 6580): Filesystem blocks quota limit grace files quota limit grace otherserver:/vol/home0/a/alice 12 52428800 52428800 4 4294967295 4294967295 fileserver:/home/l/lars 9353032 9728000 10240000 124018 0 0 ...the problem here being that there exists a quota for me on otherserver which is visible in the results of the quota command, even though my home directory is actually on a different device. My plan was to look up the fsid for each mountpoint listed in the quota output and check to see if it matched the fsid associated with my home directory. It looks like this won't work, so...any suggestions?

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• Windows Server 2008 DHCP with RRAS

  - by Guillermo Prandi

  I have a Windows Server 2008 R2 which is a member of a domain, but is placed in a remote location. The server is directly connected to Internet. Clients need to access a particular insecure TCP service in this server (ports 9730 and 9731). Since clients have dynamic IP addresses I cannot know in advance, I thought it would be nice to have them connected through a VPN in order to access the insecure service, but ONLY to access that service, like this: Client ------> VPN TUNNEL ------> (Insecure service at Server) | \----> (Normal internet access) I'd enable the insecure ports in the firewall only from VPN accesses. For this I configured RRAS in the server and gave it a static IP address range (172.19.1.2 through 172.19.1.254) to serve the clients. First I thought I could use DHCP to assign the addresses, but I cannot use DHCP in my LAN connection (not allowed by the hosting service). I tried configuring DHCP binding it to a Microsoft Loopback Adapter, but that's not supported as a DHCP source by RRAS. What I want to accomplish is to send specific DHCP options to the client (network mask, routing table, etc.). In particular: Prevent the client from having the server as default router (without changing the client's "use default gateway in remote network"). Have it as a route for the server's internal RRAS address only (172.19.1.1). Prevent the client from using a 255.255.0.0 mask for the 172.19.x.x network (a 255.255.255.0 mask would be better). Can I do that with RRAS only? How? Currently, the only solution I can think of is to use DHCP in the LAN adapter, but filter DHCP packets so they don't reach the provider's network. However, I'm not sure if that will work. Any suggestions are welcomed! Guille

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• How to install VMware tools for Ubuntu 11.04 hosted on VMware ESXi?

  - by Dmitri Toubelis

  I'm running Vmware ESX 4.1 and I have a development VM that I recently upgraded from Ubuntu 10.04 to 11.04. Then I tried to re-install VMware Tools and some of the modules gave me an error and would not compile. As a result I'm having problems with backing up this virtual machine now and I suspect VMware tools is the reason. I installed latest patches for VMware host, that included an update to VMware Tools (v8.3.7 build-381511) but I'm still getting the same error. The error I'm getting is like this: ... /tmp/vmware-root/modules/vmhgfs-only/super.c:73:4: error: unknown field \u2018clear_inode\u2019 specified in initializer make[2]: *** [/tmp/vmware-root/modules/vmhgfs-only/super.o] Error 1 make[1]: *** [_module_/tmp/vmware-root/modules/vmhgfs-only] Error 2 make[1]: Leaving directory `/usr/src/linux-headers-2.6.38-8-generic' make: *** [vmhgfs.ko] Error 2 make: Leaving directory `/tmp/vmware-root/modules/vmhgfs-only' and also this: /tmp/vmware-root/modules/vmci-only/vmci_drv.c:91:4: error: unknown field \u2018ioctl\u2019 specified in initializer /tmp/vmware-root/modules/vmci-only/vmci_drv.c:91:4: warning: initialization from incompatible pointer type /tmp/vmware-root/modules/vmci-only/vmci_drv.c: In function \u2018vmci_init\u2019: /tmp/vmware-root/modules/vmci-only/vmci_drv.c:151:4: error: implicit declaration of function \u2018init_MUTEX\u2019 make[2]: *** [/tmp/vmware-root/modules/vmci-only/vmci_drv.o] Error 1 make[1]: *** [_module_/tmp/vmware-root/modules/vmci-only] Error 2 make[1]: Leaving directory `/usr/src/linux-headers-2.6.38-8-generic' make: *** [vmci.ko] Error 2 make: Leaving directory `/tmp/vmware-root/modules/vmci-only' Any ideas?

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• How to lock Windows7 from installing anything.

  - by Andy

  A family member continually needs me to reinstall his PC after it gets viruses and spyware. He claims that he never downloads anything but evidence suggests otherwise. Unless there is some way that watching 'videos' can get spyware on there. AFAIK the computer is kept up to date. Possible solutions? Make a login where its impossible for him to install anything. Windows 7 standard account doesn't appear to be enough. Is a standard account enough here? I tried this once before and he still seemed to get IE toolbars installed up the wazoo Somehow make an automated image where if he 'messes up' or even on log off the computer restores the whole drive image. Similar to what I've seen in Kinko's Something I've not thought of.... And I know you are all going to say 'stop fixing it you are an enabler'... yes I know but I'm not going to have another fight with my wife over helping her family... right now I'm doing this to keep her happy not the idiot with the 'video' addiction ;-) So the name of the game is minimizing my overhead.

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• Remotely managing Scheduled Tasks on another computer: Access Denied

  - by Eptin

  I need to remotely create new scheduled tasks from a Windows 7 computer in my company (which according to this Microsoft TechNet article I should be able to do. http://technet.microsoft.com/en-us/library/cc766266.aspx ) From within Task Scheduler, on the menu I click Action Connect to another Computer. I browse for the remote computer's name (I use Check Names to verify that the name is correct) and then I check 'Connect as another user' and enter \Administrator and the local admin password. Whenever I try this, I get the error message Task Scheduler: You do not have permission to access this computer Firewall isn't the problem I am able to use Remote Desktop with this username & password combo, so I would expect it to work when remotely managing as well. The remote computer has firewall exceptions for Remote Scheduled Tasks Management, Remote Service Management, and Remote Desktop among other things. Heck, I even tried turning off the firewall for that individual computer and it still didn't work. More details: I have administrative remote access to several other Windows 7 Enterprise computers, though I log in as the local Administrator (whose administrative rights are only recognized by that local machine, not by the domain). The computer I am managing from is on the domain, and also has administrative rights that are recognized on the domain. More experimentation: If I go the other way around and remote-desktop into the other machine and from there open task scheduler then 'connect to another computer', I am able to connect back to my main computer using the username & password that is recognized by an administrator on the domain, and successfully schedule a task on my main computer. So it's not a company firewall issue that's preventing anything from working. The only permissions requirement Microsoft talks about is "The user credentials that you use to connect to the remote computer must be a member of the Administrators group on the remote computer". I'm logging in as an Administrator on each of the local machines, so why doesn't it work?

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• What DBus signal is sent on system suspend?

  - by Paul Robinson

  Hello, I need to detect when a machine is going to sleep in Ubuntu 9.10 and Fedora 13. Both use UPower, so I've been looking on the "org.freedesktop.UPower" DBus bus for such signals. I've been listening for the "sleeping" signal on the UPower bus with the following command: dbus-monitor --system "type='signal',interface='org.freedesktop.UPower',member='Sleeping'" When I sleep the machine (either by closing the lid, selecting "shutdown - suspend" or sending a DBus message) I don't see a "sleeping" event. I notice that the "Sleeping" event is sent when the "org.freedesktop.UPower.AboutToSleep" method is invoked. I can do this manually by calling: dbus-send --print-reply --system --dest=org.freedesktop.UPower /org/freedesktop/UPower org.freedesktop.UPower.AboutToSleep And I notice the "sleeping" signal is fired. My understanding is that anything that sleeps the PC must send the "AboutToSleep" signal before hand. It doesn't seem like this is happening. I've tried these steps on both Fedora 13 and Ubuntu 9.10 and I see the same results. Can anyone explain what's happening or provide me with an alternative DBus signal to listen for? Many thanks, Paul

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• Web Deploy 3.0 Installation Fails

  - by jkarpilo

  I am having difficulty installing Microsoft Web Deploy 3.0 to a Windows Server 2008 R2 box. I have tried installing with both the Web Platform Installer and the MSI package but installation fails while trying to execute the MSI custom action ExecuteRegisterUIModuleCA. This server is a VM and a member of a farm but shared config is disabled while I'm installing. Here's the point at which it fails in the MSI log (starting at line 1875): MSI (s) (80:FC) [15:29:01:358]: Executing op: ActionStart(Name=IISBeginTransactionCA,,) MSI (s) (80:FC) [15:29:01:374]: Executing op: CustomActionSchedule(Action=IISBeginTransactionCA,ActionType=3073,Source=BinaryData,Target=IISBeginTransactionCA,) MSI (s) (80:A8) [15:29:01:374]: Invoking remote custom action. DLL: C:\Windows\Installer\MSI6C6A.tmp, Entrypoint: IISBeginTransactionCA MSI (s) (80:FC) [15:29:01:436]: Executing op: ActionStart(Name=IISRollbackTransactionCA,,) MSI (s) (80:FC) [15:29:01:436]: Executing op: CustomActionSchedule(Action=IISRollbackTransactionCA,ActionType=3329,Source=BinaryData,Target=IISRollbackTransactionCA,) MSI (s) (80:FC) [15:29:01:436]: Executing op: ActionStart(Name=IISCommitTransactionCA,,) MSI (s) (80:FC) [15:29:01:436]: Executing op: CustomActionSchedule(Action=IISCommitTransactionCA,ActionType=3585,Source=BinaryData,Target=IISCommitTransactionCA,) MSI (s) (80:FC) [15:29:01:436]: Executing op: ActionStart(Name=IISExecuteCA,,) MSI (s) (80:FC) [15:29:01:452]: Executing op: CustomActionSchedule(Action=IISExecuteCA,ActionType=3073,Source=BinaryData,Target=IISExecuteCA,CustomActionData=1^3^21^WebDeployment_Current^154^Microsoft.Web.Deployment.UI.PackagingModuleProvider, Microsoft.Web.Deployment.UI.Server, Version=9.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35^1^1^0^^1^3^28^DelegationManagement_Current^171^Microsoft.Web.Management.Delegation.DelegationModuleProvider, Microsoft.Web.Management.Delegation.Server, Version=9.0.0.0, Culture=neutral, PublicKeyToken=31BF3856AD364E35^1^1^0^^1^7^38^system.webServer/management/delegation^4^Deny^16^MachineToWebRoot^0^^3^yes^1^7^31^system.webServer/wdeploy/backup^4^Deny^20^MachineToApplication^0^^2^no^) MSI (s) (80:84) [15:29:01:452]: Invoking remote custom action. DLL: C:\Windows\Installer\MSI6CB9.tmp, Entrypoint: IISExecuteCA 1: IISCA IISExecuteCA : Begin CA Setup 1: IISCA IISExecuteCA : CA 'ExecuteRegisterUIModuleCA' completed with return code hr=0x8007000d 1: IISCA IISExecuteCA : CA 'IISExecuteCA' completed with return code hr=0x8007000d 1: IISCA IISExecuteCA : End CA Setup CustomAction IISExecuteCA returned actual error code 1603 (note this may not be 100% accurate if translation happened inside sandbox) Action ended 15:29:05: InstallFinalize. Return value 3. I can't seem to find any information regarding this particular issue; can someone help point me in the right direction?

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