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  • SQL Server 2008 R2 mirroring failing

    - by andriusn
    I have two Windows 2008 R2 (Amazon EC2) instances running SQL Server 2008 R2. I use 9TB striped disks (9x1TB EBS volumes) for storage. One server is running as principal and second one as mirror. Both started from the same image, database and tlog files located on striped disk. Mirror server failed 3 times in last 2 months with errors: EventID 823 The operating system returned error 2(The system cannot find the file specified.) to SQL Server during a write at offset 0x00000048058a00 in file 'D:\TLogs***_log.ldf'. Additional messages in the SQL Server error log and system event log may provide more detail. This is a severe system-level error condition that threatens database integrity and must be corrected immediately. Complete a full database consistency check (DBCC CHECKDB). This error can be caused by many factors; for more information, see SQL Server Books Online. and EventID 1454 Database mirroring will be suspended. Server instance 'xxxxxxxxxx' encountered error 823, state 6, severity 24 when it was acting as a mirroring partner for database '***'. The database mirroring partners might try to recover automatically from the error and resume the mirroring session. For more information, view the error log for additional error messages. followed by EventID 19019 The MSSQLSERVER service terminated unexpectedly. After this rebooting instance is necessary to restore mirroring. First two times I thought it was hardware related (striped disk failure) and relaunched instance on new hardware. But the issue is back after few weeks again. It only affects mirror instances. Any help would be really appreciated. Thanks.

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  • Windows 7 network performance tuning for LAN

    - by Hubert Kario
    I want to tune Windows 7 TCP stack for speed in a LAN environment. Bit of background info: I've got a Citrix XenServer set up with Windows 2008R2, Windows 7 and Debian Lenny with Citrix kernel, Windows machines have Tools installed the iperf server process is running on different host, also Debian Lenny. The servers are otherwise idle, tests were repeated few times to confirm results. While testing with iperf 2008R2 can achieve around 600-700Mbps with no tuning what so ever but I can't find any guide or set of parameters that will make Windows 7 achieve anything over 150Mbps with no change in TCP window size using -w parameter to iperf. I tried using netsh autotuining to disabled, experimental, normal and highlyrestricted - no change. Changing congestionprovider doesn't do anything, just as rss and chimney. Setting all the available settings to same values as on Windows 2008R2 host doesn't help. To summarize: Windows 2008R2 default settings: 600-700Mbps Debian, default settings: 600Mbps Windows 7 default settings: 120Mbps Windows 7 default, iperf -w 65536: 400-500Mbps While the missing 400Mbps in performance I blame on crappy Realtek NIC in the XenServer host (I can do ~980Mbps from my laptop to the iperf server) it doesn't explain why Windows 7 can't achieve good performance without manually tuning window size at the application level. So, how to tune Windows 7?

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  • Extract archive here, autodetect subfolder

    - by lorancou
    I use 7-Zip under Windows 7 to extract all kind of archives. The ever-running problem is that there is not a single way to handle subfolders. Some people create their archives like this (let's call it type A): . +-- subfolder ¦   +-- file 1 ¦   +-- file 2 ¦   +-- ... "Extract Here" will extract everything to subfolder/, which is fine; "Extract to <Folder>" will create an extra subfolder level, which is annoying. And other people create them like that (let's call it type B): . +-- file1 +-- file 2 +-- ... "Extract Here" will populate the current folder, which can bring a lot of mess if this folder already contains tons of other files, and which is very annoying; "Extract to <Folder>" will create a subfolder and conveniently stuff it with the archive content, which is fine. So this leaves two options: always choose to "Extract to <Folder>" and live with the extra subfolder for type A archives. Or open the archive before extracting it to check if this is a type A or B, and then appropriately select "Extract Here" or "Extract to <Folder>". I usually do the latter, but I just discovered that KDE is offering a very handy Extract Archive Here, Autodetect Subfolder feature that automates that. It'll "Extract Here" if there's only one subfolder in the archive, otherwise it'll "Extract to <Folder>". I love this idea. Is there a Windows 7 tool offering this option? Preferably integrated in the explorer context menu? Maybe it's hidden somewhere in 7-Zip and I just didn't find it?

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  • how to properly set environment variables

    - by avorum
    I've recently started using Windows (having used Ubuntu up until now) and I find myself unable to properly set environment variables. Whenever I set them they don't seem to work. I've been going to Start-Edit Environment Variables for your Account and editing the PATH value in the upper half of the GUI. Here's what I've got so far. ;C:\Chocolatey\bin;C:\tools\mysql\current\bin;C:\Program Files (x86)\Git\bin;C:\Program Files\MySQL\MySQL Server 5.6\bin\;C:\Python33\Scripts; These are each the parent directories of the executables I'd like to be able to run by name from CMD, but mysql, git, and pip aren't being recognized. Am I doing something wrong syntactically or at a general understanding level? I'd like to be able to run these commands without having to specify the full path to the executables every time. EDIT: The full PATH extracted from CMD PATH=C:\Python33\;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files (x86)\AMD APP\bin\x86_64;C:\Program Files (x86)\AMD APP\bin\x86;C:\Program Files\Common Files\Microsoft Shared\Windows Live;C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\GTK2-Runtime\bin;C:\Program Files\WIDCOMM\Bluetooth Software\;C:\Program Files\WIDCOMM\Bluetooth Software\syswow64;C:\Program Files (x86)\ATI Technologies\ATI.ACE\Core-Static;C:\Program Files (x86)\Microsoft ASP.NET\ASP.NET Web Pages\v1.0\;C:\Program Files\Microsoft SQL Server\110\Tools\Binn\;C:\Program Files (x86)\QuickTime\QTSystem\;C:\Program Files (x86)\Common Files\Acronis\SnapAPI\;C:\Program Files (x86)\Java\jre7\bin;C:\Program Files (x86)\Windows Kits\8.1\Windows Performance Toolkit\;C:\Program Files (x86)\Microsoft SDKs\TypeScript\;C:\Program Files (x86)\MySQL\MySQL Utilities 1.3.4\; ;C:\Chocolatey\bin;C:\tools\mysql\current\bin I'm being forced to use Windows by my work environment, I don't enjoy the state of affairs.

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  • Outlook 2010 OSC with SharePoint 2010 documentation or help

    - by skypanther
    I'm looking for documentation or help to set up Outlook 2010's social connector to work with SharePoint 2010. I can't find much info other than some MS videos and blogs saying that it's possible. They say "we are already connected to SharePoint, so let's add in the XYZ connector..." but don't tell how they connected to SharePoint. Server A: Win2K8 x64, Exchange 2010 x64, domain controller Server B: Win2K8 x64, domain member, SQL Server 2008 R2, SharePoint 2010 Client: Win 7, domain member, with Office 2010 RTM (most every component installed, including the OSC) I've added my domain users to a group. In SharePoint, I granted that domain group permissions to access the site. As any of the domain users, I can use IE to log on the My Sites pages. From there, I can add lists, blog posts, status updates etc. In Outlook, I can add a SharePoint contact to my Contacts list. But, all I see in the People Pane is emails my users have exchanged. I don't see any of the other SharePoint status updates. When I try to use the "Add this person to a social network" link to connect them with my My Sites, the process fails. It doesn't give any sort of error message that helps me figure out why. Just a "Try Again" button that likewise fails. Any guides, links, suggestions? I'm pretty novice-level with SharePoint but mildly adept with the other technologies.

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  • A tiered approach to cloning linux partitons

    - by Djurdjura
    I'm looking at a strategy for cloning Linux (root) partitions without having to use a Live CD. Literature suggests rightly that the source and target partitions must be umounted to be able to get a clean clone. This assumes that you need to use a LiveCD. I was wondering if instead of requiring a LiveCD, if using a 3rd partition that would emulate the LiveCD functionality, if we can't achieve the same functionality. In other words, at a high level a system with 3 partitions (all bootable): Rescue Partition (LiveCD emulation) Running Partition (Source) Backup Partition (Destination) All 3 partitions are LVMS. When it's time to clone the source partition to the backup (destination) partition, we would boot to the rescue partition, unmount the other 2 partitions (is it required?), run disk check on the source, copy to the destination (dd or simple copy to avoid replicating the defragmentation from the source), run disk check on the destination partition, update Grub menu list to force boot from either partition, and reboot into that partition. My question, is it an approach that you'd recommend? MBR in all this? Any gotchas or extra checks required? Thanks, D. PS. On recommendation from members, posting here instead of stackoverflow.com.

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  • Database types for customer analytics

    - by Drewdavid
    I am exploring a paid solution to start providing better embedded, dashboard-style analytics information to our website customers/account holders, but would like to also offer an in-house development option to our team. The more equipped I am with specifics (such as the subject of this question), the better the adoption rate from the team (or so I have found), regardless of the path we choose Would anyone care to summarize a couple of options for a fast and scalable database type through which we would provide the following: • Daily pageviews to a users account pages (users have between 1 and 1000 pages) • Some calculated/compounded metrics (such as conversion rate, i.e. certain page type viewed to contact form thank you page ratio) • We have about 1,500 members (will need room to grow); the number of concurrently logged in users will for the question's sake be 50 I ask because our developer has balked at providing this level of "over time" granularity (i.e. daily) due to the number of space it would take up in a MYSQL database To avoid a downvote I have asked specifically for more than one option, realizing that different people will have different solutions. I will make amendments to my question if so guided by answering parties Thank you for sharing your valued answers :)

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  • Avoiding DNS timeouts when a dns server fails

    - by Neil Katin
    We have a small datacenter with about a hundred hosts pointing to 3 internal dns servers (bind 9). Our problem comes when one of the internal dns servers becomes unavailable. At that point all the clients that point to that server start performing very slowly. The problem seems to be that the stock linux resolver doesn't really have the concept of "failing over" to a different dns server. You can adjust the timeout and number of retries it uses, (and set rotate so it will work through the list), but no matter what settings one uses our services perform much more slowly if a primary dns server becomes unavailable. At the moment this is one of the largest sources of service disruptions for us. My ideal answer would be something like "RTFM: tweak /etc/resolv.conf like this...", but if that's an option I haven't seen it. I was wondering how other folks handled this issue? I can see 3 possible types of solutions: Use linux-ha/Pacemaker and failover ips (so the dns IP VIPs are "always" available). Alas, we don't have a good fencing infrastructure, and without fencing pacemaker doesn't work very well (in my experience Pacemaker lowers availability without fencing). Run a local dns server on each node, and have resolv.conf point to localhost. This would work, but it would give us a lot more services to monitor and manage. Run a local cache on each node. Folks seem to consider nscd "broken", but dnrd seems to have the right feature set: it marks dns servers as up or down, and won't use 'down' dns servers. Any-casting seems to work only at the ip routing level, and depends on route updates for server failure. Multi-casting seemed like it would be a perfect answer, but bind does not support broadcasting or multi-casting, and the docs I could find seem to suggest that multicast dns is more aimed at service discovery and auto-configuration rather than regular dns resolving. Am I missing an obvious solution?

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  • Setting SVN permissions with Dav SVN Authz

    - by Ken
    There seems to be a path inheritance issue which is boggling me over access restrictions. For instance, if I grant rw access one group/user, and wish to restrict it some /../../secret to none, it promptly spits in my face. Here is an example of what I'm trying to achieve in dav_svn.authz [groups] grp_W = a, b, c, g grp_X = a, d, f, e grp_Y = a, e, [/] * = @grp_Y = rw [somerepo1:/projectPot] @grp_W = rw [somerepo2:/projectKettle] @grp_X = rw What is expected: grp_Y has rw access to all repositories, while grp_W and grp_X only have access to their respective repositories. What occurs: grp_Y has access to all repositories, while grp_W and grp_X have access to nothing If I flip the access ordering where I give everyone access and restrict it in each repository, it promply ignores the invalidation rule (stripping of rights) and gives everyone the access granted at the root level. Forgoing groups, it performs the same with user specific provisions; even fully defined such as: [/] a = rw b = c = d = e = f = g = rw [somerepo1:/projectPot] a = rw b = rw c = rw d = e = rw f = g = rw [somerepo2:/projectKettle] a = rw b c d = rw e = rw f = rw g Which yields the exact same result. According to the documentation I'm following all protocols so this is insane. Running on Apache2 with dav_svn

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  • Why do I get a DegradedArray event with mdadm

    - by azera
    Hello Just so we're clear on what's happening: I bought 4 new sata 2 drives, with the intent of using them in a raid5 all drive are fully recognised by both my bios and my linux box (gentoo) I created a raid5 array, fiddled a bit with it to understand how it works, how to monitor ect At some point, this triggered a degradedarray event, even though the array is brand new. I tried to stopping the array and recreating a new array with the same drive but the new array starts degraded too. here is what I used to create it mdadm --create -l5 -n4 /dev/md/md0-r5 /dev/sdb /dev/sdd /dev/sde /dev/sdf here are the output from my /proc/mdstat and mdadm --detail --scan **mdstat** Personalities : [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] md127 : active raid5 sdf[4] sde[2] sdd[1] sdb[0] 4395415488 blocks level 5, 64k chunk, algorithm 2 [4/3] [UUU_] [>....................] recovery = 2.8% (41689732/1465138496) finish=890.3min speed=26645K/sec unused devices: <none> **detail** ARRAY /dev/md/md0-r5 metadata=0.90 spares=1 UUID=453e2833:81f22a74:64188b84:66721085 As such I have a couple questions: does a raid5 array always start in degraded mode at first ? why does sdf have the number 4 between bracket instead of 3, why does it see a spare disk and why is the 4th drive marked with _ instead of U ? (bad configuration ?) How can I recreate the array from scratch, do i have to format each drive on its own before recreating it ? Thanks for any help, I'm not sure about what I should do at the moment

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  • How to Upload a file from client to server using OFBIZ?

    - by SIVAKUMAR.J
    Hi all, Im new to ofbiz.So is my question is have any mistake forgive me for my mistakes.Im new to ofbiz so i did not know some terminologies in ofbiz.Sometimes my question is not clear because of lack of knowledge in ofbiz.So try to understand my question and give me a good solution with respect to my level.Because some solutions are in very high level cannot able to understand for me.So please give the solution with good examples. My problem is i created a project inside the ofbiz/hot-deploy folder namely "productionmgntSystem".Inside the folder "ofbiz\hot-deploy\productionmgntSystem\webapp\productionmgntSystem" i created a .ftl file namely "app_details_1.ftl" .The following are the coding of this file <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Insert title here</title> <script TYPE="TEXT/JAVASCRIPT" language=""JAVASCRIPT"> function uploadFile() { //alert("Before calling upload.jsp"); window.location='<@ofbizUrl>testing_service1</@ofbizUrl>' } </script> </head> <!-- <form action="<@ofbizUrl>testing_service1</@ofbizUrl>" enctype="multipart/form-data" name="app_details_frm"> --> <form action="<@ofbizUrl>logout1</@ofbizUrl>" enctype="multipart/form-data" name="app_details_frm"> <center style="height: 299px; "> <table border="0" style="height: 177px; width: 788px"> <tr style="height: 115px; "> <td style="width: 103px; "> <td style="width: 413px; "><h1>APPLICATION DETAILS</h1> <td style="width: 55px; "> </tr> <tr> <td style="width: 125px; ">Application name : </td> <td> <input name="app_name_txt" id="txt_1" value=" " /> </td> </tr> <tr> <td style="width: 125px; ">Excell sheet &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;: </td> <td> <input type="file" name="filename"/> </td> </tr> <tr> <td> <!-- <input type="button" name="logout1_cmd" value="Logout" onclick="logout1()"/> --> <input type="submit" name="logout_cmd" value="logout"/> </td> <td> <!-- <input type="submit" name="upload_cmd" value="Submit" /> --> <input type="button" name="upload1_cmd" value="Upload" onclick="uploadFile()"/> </td> </tr> </table> </center> </form> </html> the following coding is present in the file "ofbiz\hot-deploy\productionmgntSystem\webapp\productionmgntSystem\WEB-INF\controller.xml" ...... ....... ........ <request-map uri="testing_service1"> <security https="true" auth="true"/> <event type="java" path="org.ofbiz.productionmgntSystem.web_app_req.WebServices1" invoke="testingService"/> <response name="ok" type="view" value="ok_view"/> <response name="exception" type="view" value="exception_view"/> </request-map> .......... ............ .......... <view-map name="ok_view" type="ftl" page="ok_view.ftl"/> <view-map name="exception_view" type="ftl" page="exception_view.ftl"/> ................ ............. ............. The following are the coding present in the file "ofbiz\hot-deploy\productionmgntSystem\src\org\ofbiz\productionmgntSystem\web_app_req\WebServices1.java" package org.ofbiz.productionmgntSystem.web_app_req; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.DataInputStream; import java.io.FileOutputStream; import java.io.IOException; public class WebServices1 { public static String testingService(HttpServletRequest request, HttpServletResponse response) { //int i=0; String result="ok"; System.out.println("\n\n\t*************************************\n\tInside WebServices1.testingService(HttpServletRequest request, HttpServletResponse response)- Start"); String contentType=request.getContentType(); System.out.println("\n\n\t*************************************\n\tInside WebServices1.testingService(HttpServletRequest request, HttpServletResponse response)- contentType : "+contentType); String str=new String(); // response.setContentType("text/html"); //PrintWriter writer; if ((contentType != null) && (contentType.indexOf("multipart/form-data") >= 0)) { System.out.println("\n\n\t**********************************\n\tInside WebServices1.testingService(HttpServletRequest request, HttpServletResponse response) after if (contentType != null)"); try { // writer=response.getWriter(); System.out.println("\n\n\t**********************************\n\tInside WebServices1.testingService(HttpServletRequest request, HttpServletResponse response) - try Start"); DataInputStream in = new DataInputStream(request.getInputStream()); int formDataLength = request.getContentLength(); byte dataBytes[] = new byte[formDataLength]; int byteRead = 0; int totalBytesRead = 0; //this loop converting the uploaded file into byte code while (totalBytesRead < formDataLength) { byteRead = in.read(dataBytes, totalBytesRead,formDataLength); totalBytesRead += byteRead; } String file = new String(dataBytes); //for saving the file name String saveFile = file.substring(file.indexOf("filename=\"") + 10); saveFile = saveFile.substring(0, saveFile.indexOf("\n")); saveFile = saveFile.substring(saveFile.lastIndexOf("\\")+ 1,saveFile.indexOf("\"")); int lastIndex = contentType.lastIndexOf("="); String boundary = contentType.substring(lastIndex + 1,contentType.length()); int pos; //extracting the index of file pos = file.indexOf("filename=\""); pos = file.indexOf("\n", pos) + 1; pos = file.indexOf("\n", pos) + 1; pos = file.indexOf("\n", pos) + 1; int boundaryLocation = file.indexOf(boundary, pos) - 4; int startPos = ((file.substring(0, pos)).getBytes()).length; int endPos = ((file.substring(0, boundaryLocation)).getBytes()).length; //creating a new file with the same name and writing the content in new file FileOutputStream fileOut = new FileOutputStream("/"+saveFile); fileOut.write(dataBytes, startPos, (endPos - startPos)); fileOut.flush(); fileOut.close(); System.out.println("\n\n\t**********************************\n\tInside WebServices1.testingService(HttpServletRequest request, HttpServletResponse response) - try End"); } catch(IOException ioe) { System.out.println("\n\n\t*********************************\n\tInside WebServices1.testingService(HttpServletRequest request, HttpServletResponse response) - Catch IOException"); //ioe.printStackTrace(); return("exception"); } catch(Exception ex) { System.out.println("\n\n\t*********************************\n\tInside WebServices1.testingService(HttpServletRequest request, HttpServletResponse response) - Catch Exception"); return("exception"); } } else { System.out.println("\n\n\t********************************\n\tInside WebServices1.testingService(HttpServletRequest request, HttpServletResponse response) else part"); result="exception"; } System.out.println("\n\n\t*************************************\n\tInside WebServices1.testingService(HttpServletRequest request, HttpServletResponse response)- End"); return(result); } } I want to upload a file to the server.The file is get from user "<input type="file"..> tag in the "app_details_1.ftl" file & it is updated into the server by using the method "testingService(HttpServletRequest request, HttpServletResponse response)" in the class "WebServices1".But the file is not uploaded. Give me a good solution for uploading a file to the server. Thanks & Regards, Sivakumar.J

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  • Creating basic, redundant gigE or IB storage network for Xen?

    - by StaringSkyward
    With only a modest budget, I want to move my 4 xen servers over to network storage -either NFS or iSCSI which will be determined based on how well it performs when we test it (we need good throughput and it must continue to work through link and switch failure tests). We may add another couple of xen servers at some point when this is done. I don't know much about the design and operation of storage networks, so would really appreciate some hints from those with experience. The budget is around $3,800 excluding the storage appliance. I am currently thinking these are my options to remain on budget: 1) Go for used infiniband hardware and aim for 10gb performance. 2) Stick with gig ethernet and buy some new switches (cisco or procurve) to create a storage-only ethernet LAN. Upgrade to 10gigE later but try to use hardware capable of it where possible to reduce upgrade costs. I have seen used, warrantied infiniband switches at reasonable prices (presumably because big companies are converging on 10gbit ethernet?) and the promise of cheap 10gb is attractive. I know nothing about IB, so here come the questions: Can I buy 2 x switches and have multiple HBAs in my xen and storage nodes to get redundancy and increased performance without complexity or expensive management software costs? If so, can you point me to some examples? Do NFS and iSCSI work just the same regardless? Is IB a sensible choice or could/should I use ethernet or FC on the same budget - I'm keen not to get boxed into a corner for future upgrades, however. For the storage I am likely to build a storage server using nexentastor with the intention that I can later add more disks, SSDs and add another server to provide a failover option at the storage level. An HP LeftHand starter SAN is also under consideration, too. Thanks in advance.

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  • Static noise in headphones

    - by John Murdoch
    I have a Asus P6T based system. I was using the on-board sound (plugging in Logitech X-230 2.1 analog speakers in the green "front speakers" 3.5mm analog output, then plugging in my headphones in that). I was quite happy with the sound quality (didn't hear any static noise if volume was turned down to my normal listening level). Then about a week ago I started having terrible static noise from the left channel, and no normal audio on that left channel. Right channel had more static noise than usual but did have a bit of sound. I tried using the AC'97 in front of my case but that seemed to have no signal. I decided my on-board sound card has gone bad and bought an internal sound card to replace it (Startech 7.1Ch PCI). This fixed the "no sound from left channel problem", but I had much more audible static noise. I decided the card was low quality and/or it had interference from all the other things happening inside the computer case, and bought a Sweex SC016 external USB sound card. But even with that I have static noise in headphones. Positioning the USB sound card differently doesn't seem to help. Trying the other analog outputs (e.g., surround) doesn't help. The static noise in all cases is proportional to the volume. I have tried different headphones, but the situation is situation though perhaps the flavour of the static noise changes slightly. So what are my options? a) Get another, more expensive, external USB sound card hoping the quality will improve? b) Get another, more expensive, internal sound card (PCIe 1x perhaps) hoping the quality will improve? c) Get a dedicated DAC box? d) Get some Hi-Fi earphones? Suggestions? tl;dr - Two different sound cards both still have static noise in headphones.

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  • Massive SQL issue shutting down our site.

    - by Pselus
    Our website has started timing out like crazy today. All of our clients are finding it unusable. The only error we can seem to trace down as a potential problem is this: SQLAllocHandle on SQL_HANDLE_DBC failed Error ASP Description Error Category Microsoft OLE DB Provider for ODBC Drivers I have no idea what it means or how to go about fixing it. Anyone ever encountered this error before? Currently, you can log in to our site, but then once you go to do anything else, you find yourself logged out or nothing happens. We have a lot of Ajax going on so the "nothing happens" probably has to do with the Ajax pages not loading properly due to logouts and so nothing displays to the user. Like I said, I'm at a loss. Anyone have any advice on this error? EDIT I realize that this isn't necessarily a programming question, but we are a small startup company that just yesterday started talking about how we need to get a backup server running. Apparently we talked about it too late. We don't have a DBA, just 2 mid level programmers trying their hardest to keep our clients happy. So please, if you have any assistance give it but please don't close my question right now. EDIT 2 Turns out we had something on our server running called "ServerMask" that makes our IIS server look like Apache to the outside world. Shutting it down fixed our issue. Still no idea why it was messing up but it was the problem apparently. Thanks to everyone who tried to help.

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  • Where in the stack is Software Restriction Policies implemented?

    - by Knox
    I am a big fan of Software Restriction Policies for Microsoft Windows and was recently updating our settings for this. I became curious as to where Microsoft implemented this technology in the stack. I can imagine a very naive implementation being in Windows Explorer where when you double click on an exe or other blocked file type, that Explorer would check against the policy. I call this naive because obviously this wouldn't protect against someone typing something in a CMD window. Or worse, Adobe Reader running an external application. On the other hand, I can imagine that software restriction policies could be implemented deep in the stack almost at the metal. In this case, the low level loader would load into memory the questionable file, but mark the memory in the memory manager as non-executable data. I'm pretty sure that Microsoft did not do the most naive implementation, because if I block Java using a path block, Internet Explorer will crash if it attempts to load Java. Which is what I want. But I'm not sure how deep in the stack it's implemented and any insight would be appreciated.

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  • Redirect specific domains with DNS

    - by user66377
    Currently we filter internet content using OpenDNS, our internal Windows DC/DNS servers point to the router's DNS, which then points to the OpenDNS servers. This works well to block all computer's on the network equally. New issue. We now need to separate what computers can go to what sites. So facebook is blocked for everyone right now, but I need to open it up to the 3 community computers now. The 3 community computers will be on an untrusted network seperate from the company computers so they can have their own DNS server, from their own router. The issue is though they still must connect to the internet using the same IP address. So OpenDNS sees the same IP and blocks them the same way. We are looking into getting a second IP, but it's not likely an option without going up to the next major level with our ISP which we don't want to do. My thought is this. Can I setup a DNS server on the untrusted network, and then depending on the request that comes in, have it send it to either OpenDNS or our ISP's DNS? Example www.facebook.com and www.youtube.com are both on the OpenDNS blacklist. So if they go to www.youtube.com, the local DNS server goes to the ISP's DNS to get the IP and thus the client gets the right IP and can go to the site. This would be manually entered for each allowed site thus creating a white list. Then if they go to www.facebook.com, since the local DNS server does not find an entry, it sends the request to OpenDNS, which then sees the site is on the blacklist, and thus sends the it's blocked webpage. The local DNS server can be either Bind on Linux or MS DNS on Window 2008. If this can be done, can you give some direction as well as I've never setup a DNS such as this before. Thanks

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  • Recommendations for colocation in the US

    - by Emil
    Hello serverfault I work for a European media company and we are currently looking for colocation in the US. I know the European market quite well unfortunately that is not the case for the US. I'm hoping for you guys to help me out a bit with a few questions, it would be much appreciated! I am looking for a data center that can deliver a high level of availability (tier 3 or better). The installation will be fairly large so capacity is important. Good internet connectivity/carrier presence. However most important is good customer support, skilled dedicated and responsive technical staff, since we won't have tech staff close by. I'm looking for a small and fast moving company that target internet businesses rather than big old enterprise hosting. What locations should we go for given that we want to reach all of the US from a single site and still maintain decent latency? (do we need east and west coast?) Where are the main internet hubs and should you try and get as close as possible? Are there any good online resources I should look at? Where do the large scale internet/media services colocate? Lastly I would be very happy to get some actual recommendations for companies to talk to P.S I'm happy to return the favor if anyone has question regarding data centers and colocation in Europe.

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  • setting up git on cygwin - openssl

    - by user23020
    I'm trying to get git running in cygwin on a windows 7 machine I have git unpacked and the directory git-1.7.1.1 when i run make install from within that directory, I get CC fast-import.o In file included from builtin.h:4, from fast-import.c:147: git-compat-util.h:136:19: iconv.h: No such file or directory git-compat-util.h:140:25: openssl/ssl.h: No such file or directory git-compat-util.h:141:25: openssl/err.h: No such file or directory In file included from builtin.h:6, from fast-import.c:147: cache.h:9:21: openssl/sha.h: No such file or directory In file included from fast-import.c:156: csum-file.h:10: error: parse error before "SHA_CTX" csum-file.h:10: warning: no semicolon at end of struct or union csum-file.h:15: error: 'crc32' redeclared as different kind of symbol /usr/include/zlib.h:1285: error: previous declaration of 'crc32' was here csum-file.h:15: error: 'crc32' redeclared as different kind of symbol /usr/include/zlib.h:1285: error: previous declaration of 'crc32' was here csum-file.h:17: error: parse error before '}' token fast-import.c: In function `store_object': fast-import.c:995: error: `SHA_CTX' undeclared (first use in this function) fast-import.c:995: error: (Each undeclared identifier is reported only once fast-import.c:995: error: for each function it appears in.) fast-import.c:995: error: parse error before "c" fast-import.c:1000: warning: implicit declaration of function `SHA1_Init' fast-import.c:1000: error: `c' undeclared (first use in this function) fast-import.c:1001: warning: implicit declaration of function `SHA1_Update' fast-import.c:1003: warning: implicit declaration of function `SHA1_Final' fast-import.c: At top level: fast-import.c:1118: error: parse error before "SHA_CTX" fast-import.c: In function `truncate_pack': fast-import.c:1120: error: `to' undeclared (first use in this function) fast-import.c:1126: error: dereferencing pointer to incomplete type fast-import.c:1127: error: dereferencing pointer to incomplete type fast-import.c:1128: error: dereferencing pointer to incomplete type fast-import.c:1128: error: `ctx' undeclared (first use in this function) fast-import.c: In function `stream_blob': fast-import.c:1140: error: `SHA_CTX' undeclared (first use in this function) fast-import.c:1140: error: parse error before "c" fast-import.c:1154: error: `pack_file_ctx' undeclared (first use in this functio n) fast-import.c:1154: error: dereferencing pointer to incomplete type fast-import.c:1160: error: `c' undeclared (first use in this function) make: *** [fast-import.o] Error 1 I'm guessing that most of these errors are due to the iconv.h and openssl files which apparently are missing, but I can't figure out how I'm supposed to install those (if I am), or if there is some other way to get around this.

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  • Ubuntu Device-mapper seems to be invincible!

    - by Andrew Bolster
    I'm working on a hopefully unrelated question question and I've got to a strange situation. First: I know very little about the very low level hardware kernal storage driver magix, so I'm hoping a) someone can help and b) someone can explain it to me better. I've been trying a dozen different configurations of my 2x500GB SATA drives over the past few hours involving switching between ACHI/IDE/RAID in my bios; After each attempt I've reset the bios option, booted into a live CD, deleting partitions and rewriting partition tables left on the drives. Now, however, I've been sitting with a /dev/mapper/nvidia_XXXXXXX1 that seems to be impossible to kill! its the only 'partition' that i see in the Ubuntu install (but I can see the others in parted) but it is only the size of one of the drives, and I know I did not set any RAID levels other than RAID0. Anyone have any ideas how I can kill this and get back to just two independent IDE drives? Or can anyone convince me of a reason to go the AHCI route? Many thanks in advance.

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  • After update to Windows 8.1 brigthness isn't working (changing)

    - by Bibo
    I just update my Windows 8 to Windows 8.1 by Windows Store and I have some problems. My notebook is Acer Aspire Timelinex 3820TG and I know it's little old for Windows 8 but I install them and works fine (I updated my HDD to SSD). Now I just updated Windows and I have problem with changing brightness on my dedicated graphic card (Ati HD 5650). First I can changing brigthness with fn + keys but It just changing level in OS. No change in real. I tried reinstall drivers, install drivers for my card from Acer with compatibility to Windows 7 and without change. When I switch to integrated card changing brightness works. I think the problem is with drivers but I don't know how to get it working. Thanks for help Bonus question: I have another problem (but this one is not so important). Does anyone knows what msietxghh.exe is doing? Everytime when my system runs (after update) I get message that this program stops working but I just cancel and looks everything works fine.

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  • Architecture for highly available MySQL with automatic failover in physically diverse locations

    - by Warner
    I have been researching high availability (HA) solutions for MySQL between data centers. For servers located in the same physical environment, I have preferred dual master with heartbeat (floating VIP) using an active passive approach. The heartbeat is over both a serial connection as well as an ethernet connection. Ultimately, my goal is to maintain this same level of availability but between data centers. I want to dynamically failover between both data centers without manual intervention and still maintain data integrity. There would be BGP on top. Web clusters in both locations, which would have the potential to route to the databases between both sides. If the Internet connection went down on site 1, clients would route through site 2, to the Web cluster, and then to the database in site 1 if the link between both sites is still up. With this scenario, due to the lack of physical link (serial) there is a more likely chance of split brain. If the WAN went down between both sites, the VIP would end up on both sites, where a variety of unpleasant scenarios could introduce desync. Another potential issue I see is difficulty scaling this infrastructure to a third data center in the future. The network layer is not a focus. The architecture is flexible at this stage. Again, my focus is a solution for maintaining data integrity as well as automatic failover with the MySQL databases. I would likely design the rest around this. Can you recommend a proven solution for MySQL HA between two physically diverse sites? Thank you for taking the time to read this. I look forward to reading your recommendations.

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  • Application to automate Windows software installation in a test lab

    - by Marc
    I have several test environments (hyper-V) which contain a variety of windows servers. Each machine needs periodically rolling back to a given snapshot and then re-installing with the latest version of our software to test. The software installs are quite complex MSI's with a fair few option screens. I know that the installs can be driven from the command line, passing in parameters to override the wizard options. At the simplest level I suppose I could just write a batch file to kick off each install with the required parameters, however the values that are passed in do need to change from time to time (and environment to environment) so a tool with a config file and simple GUI seems like a better idea. I think what makes it slightly more painful is the multiple environments. For example one environment might contain 4 servers and need a config file with all the server names, service endpoints etc. Another environment might be a 1-box install with all names and endpoints set to localhost. So, ideally I want to be able to store different setup configurations and use them to run all the required installers with the relevant settings against the relevant machines. Before I go off to write the thing, does anyone know of an existing, simple, free tool that will let me achieve this?

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  • Samba PDC share slow with LDAP backend

    - by hmart
    The scenario I have a SUSE SLES 11.1 SP1 machine as Samba master PDC with LDAP backend. In one share there are Database files for a Client-Server application. I log XP and Windows 7 machines to the local domain (example.local), the login is a little slow but works. In the client computers have an executable which opens, reads and writes the database files from the server share. The Problem When running Samba with LDAP password backend the client application runs VERY SLOW with a maximum transfer rate of 2500 MBit per second. If disable LDAP the client app speed increases 20x, with transfer rate of 50Mbit/sec and running smoothly. I'm doing test with just two users and two machines, so concurrency, or LDAP size shouldn't be the problem here. The suspect LDAP, Smb.conf [global] section configuration. The Question What can I do? I've googled a lot, but still have no answer. Slow smb.conf WITH LDAP [global] workgroup = zmartsoft.local passdb backend = ldapsam:ldap://127.0.0.1 printing = cups printcap name = cups printcap cache time = 750 cups options = raw map to guest = Bad User logon path = \\%L\profiles\.msprofile logon home = \\%L\%U\.9xprofile logon drive = P: usershare allow guests = Yes add machine script = /usr/sbin/useradd -c Machine -d /var/lib/nobody -s /bin/false %m$ domain logons = Yes domain master = Yes local master = Yes netbios name = server os level = 65 preferred master = Yes security = user wins support = Yes idmap backend = ldap:ldap://127.0.0.1 ldap admin dn = cn=Administrator,dc=zmartsoft,dc=local ldap group suffix = ou=Groups ldap idmap suffix = ou=Idmap ldap machine suffix = ou=Machines ldap passwd sync = Yes ldap ssl = Off ldap suffix = dc=zmartsoft,dc=local ldap user suffix = ou=Users

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  • Microsoft Arc Mouse OS X

    - by meepz
    I recently bought a new Mac Book Pro with Mountain Lion 10.8 on it. The only portable mouse I have is my Microsoft Arc Mouse. I wanted to use it with the laptop so I installed the IntelliPoint 8.2 for Mac from Microsofts website. According to their website, this driver is for OS X 10.4-10.7. Now I thought that wouldnt be too much of an issue but unfortunately for me, the driver installs fine and the mouse is detected but I get no movement and when I click the buttons nothing happens. I took the mouse with me on a business trip to EU and before I left I checked if the mouse worked with my desktop which is running Windows 7 and it worked without any hiccups. I'm not too sure where the OS differs from 10.7 to 10.8. I found an article online but it doesn't pertain to my mouse, although it could be of assistance. I have tried my version of their adjustment but I am not too knowledgable on low level hardware/software modifications so I may have done it wrong. heres the link: http://refluxions.wordpress.com/2008/08/18/mac-os-x-mouse-madnessfixed/ I get the following details when I check mouse info in the IntelliPoint preferences pane: The following Microsoft mouse devices are currently connected to your Macintosh driven by the Intellipoint software. Arc Mouse Vendor name: Microsoft Product name: Microsoft AE 2.4GHz Transceiver 5.0 Vendor ID: 045E Product ID: 074F Device version: 0140 if anyone has any suggestions on how to fix this it would be greatly appreciated! I love the mouse and im here in EU for another two weeks. Thanks

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  • How do I make ESXi 5.0 to shutdown virtual machines when the physical power button is pushed?

    - by Pawel Sawicki
    I have a home NAS/DLNA server built out of an HP Micro Server with the HP branded VMware ESXi 5.0.0 build-623860 (free license) installed. Being a home media center I'd like it to be "manageable" by all my household members. This requires that it needs to be powered on an off (including all the VMs inside) by anybody with the physical access to the server by simply pressing the power button on the chassis. The "startup" part is easy to obtain - all I had to do was to configure the startup/shutdown policy: Once the server powers up, all VMs start as well and that's exactly what I need. Well.. it did work up until 5.0.0U1, but that's a different story: http://blogs.vmware.com/vsphere/2012/03/free-esxi-hypervisor-auto-start-breaks-with-50-update-1.html Unfortunately, pressing the power button doesn't gracefully shutdown the guest machines - they are terminated instead. If I run the "shut down" command from the vSphere Client interface guests are powered off. I'd like to get the same end result when the physical power button is switched. I've poked around a bit on the ESXi server. There's a "/sbin/shutdown.sh" script that seemed to do exactly what I need... but after trying it does exactly what the power off button. The "/etc/inittab" contains an entry for the "shutdown" level but I suppose it's not hooked to the power button. I can't find any acpi related configuration, neither do I know what exactly is executed when the power button is pressed. Does anybody have a clue how can I make the VMs shutdown automatically when the physical power switch is pressed to turn of the computer?

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