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  • Can't resolve offline file conflicts

    - by Bryan
    We use roaming profiles on our Server 2008 R2 domain, with folder redirection for 'desktop', 'my documents' and 'application data'. But as our network is split across two sites, we have one file server at each site, which are configured to use domain based DFS namespaces and DFS replication to keep things in sync. The DFS path for the replication folder is as follows: \\domain\folderredirection$\<username>\<redirected-folder-name> The real paths are \\site-1-server\folderredirection$\<username>\<redirected-folder-name> and \\site-2-server\folderredirection$\<username>\<redirected-folder-name> As our users all switch between sites (sometimes several time per day), our folder redirection policy has to redirect to the DFS roots rather than hardcoded to a specific server. Both DFS and DFS-R have been proven to be working perfectly. On our laptops, we use offline files for the redirected folders, and this also works fine, however the problem is as follows: When conflicts occur in offline files, it is impossible to resolve the conflicts. I'm given the usual conflict resolution options (i.e. 'Ignore', 'Keep Both', 'Keep network' and 'Keep local'), however, not one of these options will resolve any conflict, yet no error is produced. We only use offline files on laptops, which have either Windows XP Professional or Windows 7 Professional installed. The problem is not specific to any one laptop, it affects every laptop and every conflicting file in exactly the same way. I would have thought the set up we have is common for companies that have multiple sites, so I'm hoping someone will have seen this before?

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  • Current wisdom on SQL Server and Hyperthreading?

    - by BradC
    Lots of articles out there (see Slava Oks's original SQL 2000 article and Kevin Kline's SQL 2005 update) recommend disabling hyperthreading on SQL servers, or at least testing your specific workload before enabling it on your servers. This issue is gradually becoming less relevant as true multi-core processors replace hyperthreaded ones, but what's the current wisdom on this issue? Does this advice change any with SQL 2005 64-bit, or SQL 2008, or Windows Server 2008? Ideally, this should be tested in advance in a staging environment, but what about for servers that have already made it into production with HT enabled? How can I tell if performance issues we're experiencing might be related to HT? Is there some specific combination of perfmon counters that might point me in that direction, as opposed to all the other things I normally pursue when working on improving SQL performance? Edit: This is especially attractive because of the potential for an across the board improvement for some of my high-cpu servers, but the client is going to want to see something concrete that helps me identify which servers really could benefit from disabling hyperthreading. Of course, conventional performance troubleshooting is ongoing, but sometimes any little bit helps.

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  • Mysql hosting for application backend

    - by churnd
    I've been asked to help set up a way for a volunteer animal rescue organization to use an application to keep track of animals they've rescued. This application already exists, and can use it's own local database or connect to a MySQL database server. Since there are several volunteers spread out over a large region, a database server would be the best way to go. Money is a big problem, obviously. So, I'm looking for a very cheap or hopefully free database server or webhost that allows tcp/ip connections to their database servers. Backups will be handled on our end, so basically I just need the hosted mysql server. I've seen 000webhost.com, x10hosting, and xtreemhost, which all look promising, but they either aren't clear on remote mysql connections, or don't allow it at all. Looking forward to your recommendations! The animals thank you! :)

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  • Why does partition tool GParted read the 190GB of data twice when shrink a 250GB partition to 190GB?

    - by Jian Lin
    When using GParted to shrink a 250GB partition to 190GB, I thought it will move the 60GB of data back into the 190GB region and call it done. But instead it reads the 190GB of data twice, the first time taking about 1 hour and the second time for 2 hours. The question is: 1) how come it touches the 190GB of data instead of the 60GB of data? 2) how come it reads it twice? Update: i am suspecting this: it says "moving /dev/sdb1 to the right and then shrink it to 190GB"... so is that the reason, first it is to shrink the partition to 190GB, and then move it to the right? So it is not moving to the right and then shrink it, but to shrink it first and move it. (cannot move first because the original 250GB is the whole hard drive). Also, why move it to the right?

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  • Recommendations for screen-capture tool that retains menus and mouse pointer

    - by Chris Farmer
    There are several screen capture tool questions already on this site, but I think I have a slight tweak to the usual. I'd like a handy screen capture utility that can: Run in Windows 7 Capture a sub-region of the screen Show the current state of the mouse cursor and any active menus I'd like to use it for writing docs that refer to specific application menu items. I like the built-in snipping tool in Windows 7, but the act of using it dismisses my menus, and it doesn't get the mouse cursor either. Do any such tools exist? EDIT: Ahh, I wasn't familiar with the "delayed capture" options of these tools, but they all seem to fit the bill. Thanks!

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  • Bootstrapping in CloudFormation with Autoscale

    - by PapelPincel
    My CloudFormation template creates an autoscale group and bootstrap it with utility script /opt/aws/bin/cfn-init. When I remove the bootstrap part out of my template the, autoscale get created without any problem, but I add it the CloudFormation Stack fails and add line in /var/log/cloud-init.log : Error: AutoScalingGroupName does not specify any metadata The line above appens right after the following command : /opt/aws/bin/cfn-init --verbose --configsets orderedConfig --region us-east-1 --stack AS15 --resource AutoScalingGroupName --access-key XXXXXXXXXXXXX --secret-key XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Digging a little bit deeper, in cfn-init I added the following lines the point where it exit: from pprint import pprint pprint(vars(detail)) and I get the following trace when running the previous cfn-init command : {'_description': None, '_lastUpdated': datetime.datetime(2012, 7, 12, 14, 52, 42), '_logicalResourceId': u'AutoScalingGroupName', '_metadata': None, '_physicalResourceId': u'AS15-AutoScalingGroupName-HNPOXXXXXXXX', '_resourceStatus': u'CREATE_COMPLETE', '_resourceStatusReason': None, '_resourceType': u'AWS::AutoScaling::AutoScalingGroup', '_stackId': u'arn:aws:cloudformation:us-east-1:XXXXXXXXXXXXX:stack/AS15/XXXXXXXX-cc30-11e1-XXXXXX-XXXXXXXXXX', '_stackName': u'AS15'} As you can see, the metadata field is empty and that's the reason why it fails to create the stack. Is there any known side effects for cfn-init when used with autoscale ?

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  • How can I recover from SharePoint configuration errors after promoting the server to a Domain Controller?

    - by jjr2527
    I have a SharePoint 2010 VM setup in VirtualBox and I was using local machine accounts to handle security on the server. While preparing for a demo it came time to have some meaningful users on my VM image. I followed some docs on promoting my server to a Domain Controller in a new forrest. So now I have [MachineName].SPDEMO.CONTOSO.com and I can add users as needed. However, when I try to connect to my SharePoint sites I am getting a white screen with the error: "Cannot connect to the configuration database" I changed the pool identity account of each of my IIS app pools to the new Administrator account and started the services successfully but I can't get the SQL services to start up. When I try to start them I get the following error: Windows could not start the SQL Server (MSSQLSERVER) on Local Computer. For more information, review the System Event Log. If this is a non-Microsoft service, contact the service vendor, and refer to service-specific error code 17058. In the event log I see the following error: The SQL Server (MSSQLSERVER) service terminated with service-specific error %%17058. Can I recover from this or should I roll back or just uninstall the Domain Controller role. I'd like to keep the server as a standalone DC so I can do some user profile creation/management but I need the SharePoint bits to work as well.

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  • Custom flash uploader breaks only on Media Temple

    - by LaserWolf
    I've built a flash uploader to upload files up to 100MB using a php backend. It works wonderfully on our dev server, on a hostgator vps, and on one of our clients' servers running Debian. It will not work on our Media Temple (dv)3.5 and I don't know why. The upload will start but will choke after a few seconds with this flash error message: ioerror: [IOErrorEvent type="ioError" bubbles=false cancelable=false eventPhase=2 text="Error #2038: File I/O Error. URL: http://..._upload.php"] The problem seems to be specific to the asynchronous nature of the flash uploader because if I try a straight php upload it works fine. The php.ini settings are set to allow such a large upload as well. Also, I've thoroughly googled flash, 2038, I/O error, etc but have yet to find anything that helped. Here's the weird part though: We work in Seattle. It won't work from the office. It won't work from home. But, while on the phone with MT's support, they were able to upload a file through our flash uploader just fine. I'm not sure where his office was located but I think it was Atlanta. So the problem also seems specific to physical location. Has anyone run into this sort of problem before?

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  • Windows XP dual screen problems, user account related

    - by Chris
    I have had this issue with a few laptops now and it looks like it is some sort of user account problem. Specifics of the system are: Dell Laptop Windows XP Pro SP3 Non-domain member computer DLP Projector connected to laptop via VGA I use this setup almost daily to do presentations, always the mirrored display mode where I can see on the laptop monitor the same thing that is displayed on the projector. Today, when I boot up, I get the mirrored display at the login screen, but after I log in, it switches to Extended Desktop (like two desktops side-by-side). Fn+F8 just cycles through all the normal settings except the mirrored display. I created a new user account on the computer and it performs normally. Mirrored display works as normal. I have run into this about 4 times now and it always can be solved by creating a new user account on the computer, and then all is well. I would like to either: 1. Find a way to reset the customized settings for a specific user account which would hopefully make this go away, or 2. Find the specific setting that causes this so that I can easily fix it when the problem comes up. Creating new user accounts is kind of a pain and a easy fix must be out there somewhere.

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  • Referencing groups/classes from Puppet dashboard in my site manifest

    - by Banjer
    I'm using Puppet Dashboard as my ENC and I'm not sure how to reference or use class and group classifications from /etc/puppet/manifests/site.pp. I have two groups defined in the dashboard: CentOS6 and SLES11. What should my site.pp look like if I want to include a certain list of modules in the CentOS6 group and a certain list of modules in the SLES11 group? I'm trying to do something like this: # /etc/puppet/manifests/site.pp node basenode { include hosts include ssh::server include ssh::client include authentication include sudo include syslog include mail } node 'CentOS6' inherits basenode { include profile } node 'SLES11' inherits basenode { include usrmounts } I have OS-specific case statements within my modules, but there are some modules that will only be applied to a certain distro. So I suppose I have two questions: Is this the best way to apply modules/resources in an OS-specific manner? Or does the above make you want to vomit? Regardless of #1, I'm still curious as how to reference classes, groups, and nodes from Dashboard within my manifests. I've read the External Nodes doc, but I'm not seeing how they correspond to manifests. Thanks all.

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  • Remote assistance from Remote Desktop sessions: unable to control

    - by syneticon-dj
    Since Remote Control (aka Session Shadowing) is gone for good in Server 2012 Remote Desktop Session hosts, I am looking for a replacement to support users in a cross-domain environment. Since Remote Assistance is supposed to work for Remote Desktop Sessions as well, I tried leveraging that for support purposes by enabling unsolicited remote assistance for all Remote Desktop Session Hosts via Group Policy. All seems to be working well except that the "expert" seems to be unable to actually excercise any mouse or keyboard control when the remote assistance session has been initiated from a Remote Desktop session itself. Mouse clicks and keyboard strokes from the "expert" session (Server 2012) seem to simply be ignored even after the assisted user has acknowledged the request for control. I would like to see this working through RD sessions for the support staff due to a number of reasons: not every support agent would have the appropriate client system version to support users on a specific terminal server (e.g. an agent might have a Windows Vista or Windows 7 station and thus be unable to offer assistance to users on Server 2012 RDSHs) a support agent would not necessarily have a station which is a member of the specific destination domain (mainly due to the reason that more than a single domain's users are supported) what am I missing?

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  • Long access time for static web page on virtual machine

    - by Karol
    My setup Windows 7 on workstation that I use at work (with domain) and home (no domain) Virtual machine (VMWare) that runs Arch Linux (I will call it just "Linux") with network interface in bridged mode. Linux serves web pages with Nginx. IP address of Linux machine is 192.168.0.16 and is added to C:\windows\system32\drivers\etc\hosts: 192.168.0.16 bridged bri IP address of Windows workstation is added to /etc/hosts: 192.168.0.10 workstation I can add more details to my setup description (I am not sure what is relevant). The question Often (but not always) it takes long time for a web browser (Firefox) to open static web page served by Linux. I am sure it is not a performance issue. To be more specific: it takes about ~20 seconds to resolve(?) the address http://bridged for a web browser. Additionally I have just installed samba service and noticed similar problem, so it is not specific to browser & http. Initial access for samba shares also takes long time.

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  • How would I / could I obtain an reasonably comprehensive list of domain names?

    - by Simon
    I know that domain names are constantly changing, and I know there are a lot of them, but there is clearly a region of the domain name space which is stable. How would I go about getting a list, even a very big one? Such a thing must logically exist, even if it is in a distributed form, because the web's DNS servers resolve names to IP addresses. So in theory if I could poll all the DNS servers in the world at a moment in time I would have the complete list of mapped names. Is there a practical way of doing that? As an aside, does anyone have any good estimates of how many domain names exist at the moment?

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  • Connecting a network printer via a Thecus N2100 - works in Vista, not in Windows 7

    - by Jon Skeet
    I have a Lexmark E250d printer attached to a Thecus N2100 NAS. On Windows Vista I've managed to configure this using an "Internet" printer port with the URL of http://thecus:631/printers/usb-printer. I can add a printer in a similar way in Windows 7, but it never manages to print the test page. If I go to "Configure Port" in Vista, it just has "Security Options" - on Windows 7 it's asking about Raw mode vs LPR mode etc. On Vista I'm using an E250d-specific driver from Lexmark; on Windows 7 there's a Microsoft E250d driver, or a Universal PCL XL driver from Lexmark... I wouldn't expect this different to be related to the problem, but I thought I'd mention it anyway. (Lexmark doesn't have a Windows 7 E250d-specific driver as far as I can see.) Any suggestions? I was thinking of upgrading my main laptop from Vista to Windows 7, but I'd really like to get this sorted first... EDIT: If I connect to http://thecus:631/printers/usb-printer via Chrome while capturing with Wireshark, I get this response: HTTP/1.1 200 OK Date: Wed, 06 Jan 2010 16:47:23 GMT Connection: Keep-Alive Keep-Alive: timeout=60 Content-Language: C Transfer-Encoding: chunked Content-Type: text/html;charset=iso-8859-1 0 No idea what that's meant to be doing... EDIT: On further consultation, this would appear to be the Internet Printing Protocol which is layered on HTTP. Printing a test page successfully from Vista posts to that URL. Will attempt the same on Windows 7...

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  • VMware Server Host-Only Network Routing

    - by Chris
    I have a windows 2008 web server machine running VMware server. I have 3 VM's - All 3 are test servers so security isn't really a concern... each of them running windows 2008 standard and some of them serving web content. My ISP only allows one MAC address to access the physical switch, however they give me 10 public IP addresses to use. My question is, if I put each VM on their own Host only network, how can I route all traffic from a specific public IP on the host, to the corresponding host only adapter, therefore routing to the specific VM? For example: A single physical Adapter on the Host has the following public IP's assigned to it in windows networking: 74.208.14.10 74.208.14.20 74.208.14.30 Each VM is on a host-only network vm1 - 192.168.196.1 vm2 - 192.168.197.1 vm3 - 192.168.198.1 On the host, I want to route all traffic from 74.208.14.10 to VM1 and 74.208.14.20 to VM2 and 74.208.14.30 to vm3 without using VMware NAT, or bridged connections. I want each server to appear to have its own public IP address. My guess is i can modify the route tables somehow, or perhaps in ICS...but i'm not sure how.

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  • Get Illegal Instruction error when booting Linux in VirtualBox, works fine when booted directly

    - by rkjnsn
    I have a computer on which I am dual booting Windows 7 and Gentoo Linux (both 64-bit). I want to be able to load up my Linux installation in a VM while I am booted into Windows. I have installed VirtualBox and followed the instructions for creating a raw disk VMDK. When I start the VM, Linux starts booting, but then fails with the following error when unlocking my root partition: truecrypt[441] trap invalid opcode ip:373615538e0 sp:3dd0e0dfb60 error:0 in libpixman-1.so.0[373614d6000+8d000] Everything works fine when I boot into Linux directly. What could cause an illegal instruction to be hit in libpixman only when booting in VirtualBox? Update: As a troubleshooting step, I recompiled pixman without "-march", and no longer get an illegal instruction error in that library. (The boot fails in the same spot with the same error in a different library, however.) How can I determine the specific opcode that isn't working in VirtualBox so I can disable it in my CFLAGS without having to disable all CPU-specific optimizations? I am still confused as to why there would be any user-mode instruction that would fail to work in a VM. Is this a known limitation? My CPU is an Intel Core i7 3720QM, and I have hardware virtualization support enabled.

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  • What does a connection timeout indicate when performing an NFS mount?

    - by DeeDee
    We have a shiny new QNAP NAS (TS-879U-RP), and I'm trying to mount it to our big ol' RHEL server in the same manner as our other two QNAP NAS devices. The IT department won't give me the root privileges to the NAS, so I can't SSH in (I know, I know). The first thing I did was to, via the QNAP web admin interface, create a network share named "Runs." I then added the IP of the RHEL server to the permissions list: On the RHEL server, I then added the following line to /etc/fstab: [IP of NAS]:/Runs /mnt/gsrnas3 nfs defaults 0 0 Aside from the IP and the specific mount directory name, this is how I mounted the other two NAS devices. I then created the gsrnas3 directory under /mnt/, and then ran `mount /mnt/gsrnas3' I got the following error: mount.nfs: Connection timed out My first thought is that it's a ports issue, but I don't have enough specific experience with this issue to know for sure. I have two other NAS devices by the same manufacturer already mounted to this RHEL server, so that leads me to believe the configuration issue is on the NAS side of things. I can ping the NAS device successfully from the RHEL server. Not being able to SSH into said NAS is a huge hassle, though. Any ideas?

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  • Creating a DVD-player compatible movie file

    - by Robert Munteanu
    I've created encoded a MPEG-4 file with mplayer and placed it on a DVD. The file is identified as RIFF (little-endian) data, AVI, 320 x 240, 25.00 fps, video: FFMpeg MPEG-4, audio: uncompressed PCM (stereo, 96000 Hz) I've tried playing it on a Samsung 1080p DVD player and the codecs were not recognised. There are no firmware upgrades available for my region (Romania). How should I pick the codecs to make sure that the files are readable by this DVD player? Update: The command line I used is similar to mencoder -dvd 2 -ovc lavc -lavcopts vcodec=mpeg4:vpass=1 -oac copy -o movie.avi mencoder -dvd 2 -ovc lavc -lavcopts vcodec=mpeg4:vpass=2 -oac copy -o movie.avi

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  • systemd: enabling cherokee service as a `unit file`

    - by Calvin Cheng
    So I am learning how to use systemd to initialize my services automatically on server reboot. So of course, I first make sure I have systemd and some optional systemd related packages installed. pacman -S systemd initscripts-systemd Installation seems to go well and checking, I can see that systemd and its dependency libsystemd are installed. And the optional package initscripts-systemd is also installed:- [root@li280-195 ~]# pacman -Ss systemd extra/libsystemd 44-5 [installed] systemd client libraries extra/systemd 44-5 [installed] system and service manager extra/systemd-sysvcompat 2-2 sysvinit compat symlinks for systemd community/initscripts-systemd 20120412-1 [installed] Arch specific systemd initialization/bootup scripts for systemd community/systemd-arch-units 20120412-2 Arch specific Systemd unit files Next, I ensure that systemd is loaded up when my server reboots, via grub in grub's /boot/grub/menu.lst file like this:- kernel /boot/vmlinuz root=/dev/xvda ro init=/bin/systemd Rebooting my server to check, all loads up well and I can check that systemd is operational via:- systemctl list-unit-files However, I don't see my cherokee initialization script (which is simply created at /etc/rc.d/cherokee when I installed cherokee earlier via pacman -S cherokee) being listed as one of my unit files. So the question is, how do I do that? How do I put my cherokee initialization script under systemd's control?

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  • Backing up SQL NetApp Snapshots using TSM

    - by WerkkreW
    In our environment we have a 3 node SQL 2005 Cluster which is on NetApp storage. We are currently using SMSQL (NetApp SnapManager for SQL) to take Snapshot backups of the data. This works great, but due to some audit requirements we are also forced to maintain some copies on tape. We have used NDMP in other places across the enterprise but we do not want to use it in this specific instance. Basically what I need to do is, get the most recent snapshot copy of the databases on tape, via Tivoli Storage Manager (TSM). What I have done is, obtained a basic Windows Server 2003 VM with SnapDrive installed, which is SAN attached and zoned to the NetApp, and I have written a batch file to do the following: Mount the latest __RECENT snapshot lun to the host, using a specific drive letter Perform a TSM based incremental backup Dis-mount the LUN This seems to work fine, except sometimes the LUN's do not mount due to some sort of timeout. Also, due to my limited knowledge of windows batch scripting, I have no way to monitor the success or failure of these backups since I do not know how to send a valid return code back to the TSM scheduling service. Is there a more efficient/elegant way to accomplish this without NDMP?

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  • What is the best software for desktop recording?

    - by Ivo Flipse
    I know this question is partially a stub from: http://superuser.com/questions/201/free-desktop-recording-screencasting-on-windows However I would have to use this at work, so it doesn't have to be free, just work very well. Lended from the free post: I would expect such an application to have these features: choose the whole desktop, a region, a window to record zoom in an area, and camera move save the recorded movie to a compressed format have basic editing tools have the mouse highlighting feature highlight window/field on the screen, any trick will do display pressed keys/key combinations (like iphone does) So the question is: Which desktop recording/screencasting software would you recommend?

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  • Apache multiple vhost logs, stored locally and sent to remote logstash

    - by benbradley
    I'm investigating centralised logging and it seems there's so many different ways this can be done. I don't want to run logstash as a log "sender", preferring to keep the web servers as lean and simple possible. So that means either using syslog, syslog-ng or the one I'm testing now, rsyslog. But I would like to have separate vhost log files on the web server, in addition to these logs being sent to a remote log collector. I've tested rsyslog using the imfile module to watch the Apache log files, but this means I have to hard-code each vhost log file into my rsyslog.conf. Not ideal as people will invariably forget when they add/remove sites on the server. The reason I'm using rsyslog's imfile is that Apache doesn't appear to let you log to file and syslog. And I want to keep vhost-specific log files on the web server. So how can I do this? Is there a way of having rsyslog produce local log files and forward the logs to a remote collector? I am prepared to change my Apache config to log to a single access/error log for all vhosts, so long as there are vhost-specific log files produced somewhere on the web server machine. I just don't want to lose any logging info if the remote log collector can't be contacted for any reason. Any comments/suggestions? Cheers, B

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  • Disable the user of Internet explorer through policies when called from HTML help

    - by Stephane
    Hello, I have a locked down environment where users are prohibited from doing, well, basically anything but run the specific programs we specify. We just switched a program from using the venerable "WinHELP" help format to HTML help (CHM) but that seem to have an unwanted and rather dangerous side effect: when a user click on a hyperlink inside the HTML help, a new internet explorer window is opened and the user is free to browse and do terrible things to my server (well, not that much, but still...) I have checked the session in this case and the IE window is actually hosted within the help engine: there is no iexplore.exe process running in the user session (and it cannot: it's explicitly prohibited). We have disable all help right now until we find a solution. I'm working with the help team to have all external URLs removed from the help file but that is going to be a long and error-prone task. Meanwhile, I've checked all the group policies option but I have to say that I was unable to find anything that would prevent a standalone IE window hosted in a random process from running. I don't want to disable WinHTTP or the IE rendering engine or anything of the sort. But I need to prevent all users members of a specific AD user group from ever having an IE window displayed to them. The servers are running Windows 2003 and Citrix metaframe 4.5. Thanks in advance

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  • 530 5.7.1 Client was not authenticated Exchange 2010 for some computers within mask

    - by user1636309
    We have a classic problem with Client not Authenticated but with a specific twist: We have an Exchange 2010 cluster, let's say EX01 and EX02, the connection is always to smtp.acme.com, then it is switched through load balancer. We have an application server, call it APP01 There are clients connected to the APP01. There is a need for anonymous mail relay from both clients and APP01. The Anonymous Users setting of the Exchange is DISABLED, but the specific computers - APP01 and clients by the mask, let's say, 192.168.2.* - are enabled. For internal relay, a "Send Connector" is created, and then the above IP addresses are added for the connector to allow computers, servers, or any other device such as a copy machine to use the exchange server to relay email to recipients. The problem is that the relay works for APP01 and some clients, but not others (we get "Client not Authenticated") - all inside the same network and the same mask. This is basically what we do to test it outside of our application: http://smtp25.blogspot.sk/2009/04/530-571-client-was-not-authenticated.html So, I am looking for ideas: What can be the reason for such a strange behaviour? Where I can see the trace of what's going on at the Exchange side?

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  • How to troubleshoot when one has no idea where to start?

    - by Chris Walton
    I am looking for hints, tips and answers on how to get started on troubleshooting when: The problem is intermittent The problem could lie literally anywhere - operating system; free source software; my own software developments; purchased software; crumbs on the keyboard; the specific combination of software I am currently running; Maxwell's demon; the little blue men actually running the machine have gone on strike; etc. I have expertise only in a few of the areas that are potential candidates for the cause of the problem. The specific problem I am having is detailed below as an example, but I am not seeking answers to my current problem, but rather where and how to start on tackling such problems. I am currently encountering a problem with my new machine. On a few occasions the machine has just frozen; not accepting keystrokes, mouseclicks, or anything except the power on/off switch. Invariably I have been merely browsing the web; I have had a few (<= 6 other applications) running. None of these applications are major; and represent a mix of commercial programs and open source programs, typically migrated from Unix of some variety. My machine is a Windows 7 I7 quad core laptop.

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