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• Systems design question: DB connection management in load-balanced n-tier

  - by aoven

  I'm wondering about the best approach to designing a DB connection manager for a load-balanced n-tier system. Classic n-tier looks like this: Client -> BusinessServer -> DBServer A load-balancing solution as I see it would then look like this: +--> ... +--+ +--> BusinessServer +--+--> SessionServer --+ Client -> Gateway --+--> BusinessServer +--| +--> DBServer +--> BusinessServer +--+--------------------+ +--> ... +--+ As pictured, the business server component is being load-balanced via multiple instances, and a hardware gateway is distributing the load among them. Session server probably needs to be situated outside the load-balancing array, because it manages state, which mustn't be duplicated. Barring any major errors in design so far, what is the best way to implement DB connection management? I've come up with a couple of options, but there may be others I'm not aware of: Introduce a new Broker component between the DBServer and the other components and let it handle the DB connections. The upside is that all the connections can be managed from a single point, which is very convenient. The downside is that now there is an additional "single point of failure" in the system. Other components must go through it for every request that involves DB in some way, which also makes this a bottleneck. Move the DB connection management into BusinessServer and SessionServer components and let each handle its own DB connections. The upside is that there is no additional "single point of failure" or bottleneck components. The downside is that there is also no control over possible conflicts and deadlocks apart from what DBServer itself can provide. What else can be done? FWIW: Technology is .NET, but none of the vendor-specific stacks are used (e.g. no WCF, MSMQ or the like).

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• Part 9: EBS Customizations, how to track

  - by volker.eckardt(at)oracle.com

  In the previous blogs we were concentrating on the preparation tasks. We have defined standards, we know about the tools and techniques we will start with. Additionally, we have defined the modification strategy, and how to handle such topics best. Now we are ready to take the requirements! Such requirements coming over in spreadsheets, word files (like GAP documents), or in any other format. As we have to assign some attributes, we start numbering all that and assign a short name to each of these requirements (=CEMLI reference). We may also have already a Functional person assigned, and we might involve someone from the tech team to estimate, and we like to assign a status such as 'planned', 'estimated' etc. All these data are usually kept in spreadsheets, but I would put them into a database (yes, I am from Oracle :). If you don't have any good looking and centralized application already, please give a try with Oracle APEX. It should be up and running in a day and the imported sheets are than manageable concurrently!  For one of my clients I have created this CEMLI-DB; in between enriched with a lot of additional functionality, but initially it was just a simple centralized CEMLI tracking application. Why I am pointing out again the centralized method to manage such data? Well, your data quality will dramatically increase, if you let your project members see (also review and update) "your" data.  APEX allows you to filter, sort, print, and also export. And if you can spend some time to define proper value lists, everyone will gain from. APEX allows you to work in 'agile' mode, means you can improve your application step by step. Let's say you like to reference a document, or even upload the same, you can do that. Or, you need to classify the CEMLIs by release, just add this release field, same for business area or CEMLI type. One CEMLI record may then look like this: Prepare one or two (online) reports, to be ready to present your "workload" to the project management. Use such extracts also when you work offline (to prioritize etc.). But as soon as you are again connected, feed the data back into the central application. Note: I have combined this application with an additional issue tracker.  Here the most important element is the CEMLI reference, which acts as link to any other application (if you are not using APEX also as issue tracker :).  Please spend a minute to define such a reference (see blog Part 8: How to name Customizations).   Summary: Building the bridge from Gap analyse to the development has to be done in a controlled way. Usually the information is provided differently, but it is suggested to collect all requirements centrally. Oracle APEX is a great solution to enter and maintain such information in a structured, but flexible way. APEX helped me a lot to work with distributed development teams during the complete development cycle.

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• SQL SERVER – Identifying Column Data Type of uniqueidentifier without Querying System Tables

  - by pinaldave

  I love interesting conversations with related to SQL Server. One of my friends Madhivanan always comes up with an interesting point of conversation. Here is one of the conversation between us. I am very confident this blog post will for sure enable you with some new knowledge. Madhi: How do I know if any table has a uniqueidentifier column used in it? Pinal:  I am sure you know that you can do it through some DMV or catalogue views. Madhi: I know that but how can we do that without using DMV or catalogue views? Pinal: Hm… what can I use? Madhi: You can use table name. Pinal: Easy, just say SELECT YourUniqueIdentCol FROM Table. Madhi: Hold on, the question seems to be not clear to you – you do know the name of the column. The matter of the fact, you do not know if the table has uniqueidentifier column. Only information you have is table name. Pinal: Madhi, this seems like you are changing the question when I am close to answer. Madhi: Well, are you clear now? Let me say it again – How do I know if any table has a uniqueidentifier column and what is its value without using any DMV or System Catalogues? Only information you know is table name and you are allowed to return any kind of error if table does not have uniqueidentifier column. Pinal: Do you know the answer? Madhi: Yes. I just wanted to test your knowledge about SQL. Pinal: I will have to think. Let me accept I do not know it right away. Can you share the answer please? Madhi: I won! Here it goes! Pinal: When I have friends like you – who needs enemies? Madhi: (laughter which did not stop for a minute). CREATE TABLE t ( GuidCol UNIQUEIDENTIFIER DEFAULT newsequentialid() ROWGUIDCOL, data VARCHAR(60) ) INSERT INTO t (data) SELECT 'test' INSERT INTO t (data) SELECT 'test1' SELECT $rowguid FROM t DROP TABLE t This is indeed very interesting to me. Please note that this is not the optimal way and there will be many other ways to retrieve uniqueidentifier name and value. What I learned from this was if I am in a rush to check if the table has uniqueidentifier and I do not know the name of the same, I can use SELECT TOP (1) $rowguid and quickly know the name of the column. I can later use the same columnname in my query. Madhi did teach me this new trick. Did you know this? What are other ways to get the check uniqueidentifier column existence in a database? Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Puzzle, SQL Query, SQL Server, SQL Server Management Studio, SQL Tips and Tricks, T SQL, Technology

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• Managing software projects - advice needed

  - by Callum

  I work for a large government department as part of an IT team that manages and develops websites as well as stand alone web applications. We’re running in to problems somewhere in the SDLC that don’t rear their ugly head until time and budget are starting to run out. We try to be “Agile” (software specifications are not as thorough as possible, clients have direct access to the developers any time they want) and we are also in a reasonably peculiar position in that we are not allowed to make profit from the services we provide. We only service the divisions within our government department, and can only charge for the time and effort we actually put in to a project. So if we deliver a project that we have over-quoted on, we will only invoice for the actual time spent. Our software specifications are not as thorough as they could be, but they always include at a minimum: Wireframe mockups for every form view A data dictionary of all field inputs Descriptions of any business rules that affect the system Descriptions of the outputs I’m new to software management, but I’ve overseen enough software projects now to know that as soon as users start observing demos of the system, they start making a huge amount of requests like “Can we add a few more fields to this report.. can we redesign the look of this interface.. can we send an email at this part of the workflow.. can we take this button off this view.. can we make this function redirect to a different screen.. can we change some text on this screen… can we create a special account where someone can log in and get access to X… this report takes too long to run can it be optimised.. can we remove this step in the workflow… there’s got to be a better image we can put here…” etc etc etc. Some changes are tiny and can be implemented reasonably quickly.. but there could be up to 50-100 or so of such requests during the course of the SDLC. Other change requests are what clients claim they “just assumed would be part of the system” even if not explicitly spelled out in the spec. We are having a lot of difficulty managing this process. With no experienced software project managers in our team, we need to come up with a better way to both internally identify whether work being requested is “out of spec”, and be able to communicate this to a client in such a manner that they can understand why what they are asking for is “extra” work. We need a way to track this work and be transparent with it. In the spirit of Agile development where we are not spec'ing software systems in to the ground and back again before development begins, and bearing in mind that clients have access to any developer any time they want it, I am looking for some tips and pointers from experienced software project managers on how to handle this sort of "scope creep" problem, in tracking it, being transparent with it, and communicating it to clients such that they understand it. Happy to clarify anything as needed. I really appreciate anyone who takes the time to offer some advice. Thanks.

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• Microsoft Management Console stops working when I add snap-in to it

  - by JayaprakashReddy

  I have Windows 7 Ultimate OS. I'm opening mmc.exe as administrator and trying add Certificates or any other snap-in, then while loading that snap-in MMC breaks and displays following message and after that it closes automatically once I click on close button on that message. What could be the problem? I did following to fix the problem but couldn't succeed any of these: I tried to repair the OS I repaired files using this method Even repaired the installation using this link Update: *@oldskool: Here is the debug process output:* Sorry its a long output text. 'mmc.exe': Loaded 'C:\Windows\System32\mmc.exe', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\ntdll.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\kernel32.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\KernelBase.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\gdi32.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\user32.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\lpk.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\usp10.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\msvcrt.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\mfc42u.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\ole32.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\rpcrt4.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\oleaut32.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\odbc32.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\advapi32.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\sechost.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\mmcbase.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\shlwapi.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\uxtheme.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\duser.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\imm32.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\msctf.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\odbcint.dll', Binary was not built with debug information. 'mmc.exe': Loaded 'C:\Windows\System32\dui70.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7600.16661_none_420fe3fa2b8113bd\comctl32.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\shell32.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\cryptbase.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\urlmon.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\wininet.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\iertutil.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\crypt32.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\msasn1.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\clbcatq.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\mmcndmgr.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\dwmapi.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\oleacc.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\cryptsp.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\rsaenh.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\RpcRtRemote.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\mlang.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\xmllite.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\version.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\apphelp.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\msi.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Program Files\Microsoft Visual Studio 8\SDK\v2.0\Bin\mscormmc.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\mscoree.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\winsxs\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.4927_none_d08a205e442db5b5\msvcr80.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\azroleui.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\atl.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\secur32.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\netutils.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\dsrole.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\logoncli.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\dsuiext.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\ntdsapi.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\ws2_32.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\nsi.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\activeds.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\adsldpc.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\Wldap32.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\mpr.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\netapi32.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\srvcli.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\wkscli.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\certmgr.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\certcli.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\CertEnroll.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\cryptui.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\ncrypt.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\bcrypt.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\wintrust.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\imagehlp.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\sspicli.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\aclui.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\IPHLPAPI.DLL', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\winnsi.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\slc.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\comsnap.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\mfc42.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\mycomput.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\devmgr.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\setupapi.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\cfgmgr32.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\devobj.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\devrtl.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\newdev.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\dmdskmgr.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\dmutil.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\dmdskres.dll', Binary was not built with debug information. 'mmc.exe': Loaded 'C:\Windows\System32\dmdskres2.dll', Binary was not built with debug information. 'mmc.exe': Loaded 'C:\Windows\System32\gpedit.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\dssec.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\authz.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\dfscli.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\samcli.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\gpapi.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\framedynos.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\wtsapi32.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\ipsmsnap.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\winipsec.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\userenv.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\profapi.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\ipsecsnp.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\polstore.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\localsec.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\wdc.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\pdh.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\pdhui.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\comdlg32.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\credui.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\wevtapi.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\pla.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\tdh.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\winsta.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\utildll.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\browcli.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\vdmdbg.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\pmcsnap.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\winspool.drv', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\puiapi.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\wsecedit.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\scecli.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\filemgmt.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Program Files\Microsoft SQL Server\100\Tools\Binn\SqlManager.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\winsxs\x86_microsoft.vc80.mfc_1fc8b3b9a1e18e3b_8.0.50727.4053_none_cbf21254470d8752\mfc80u.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\winsxs\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.4927_none_d08a205e442db5b5\msvcp80.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\winsxs\x86_microsoft.vc80.atl_1fc8b3b9a1e18e3b_8.0.50727.4053_none_d1c738ec43578ea1\ATL80.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\winsxs\x86_microsoft.windows.common-controls_6595b64144ccf1df_5.82.7600.16661_none_ebfb56996c72aefc\comctl32.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\winsxs\x86_microsoft.vc80.mfcloc_1fc8b3b9a1e18e3b_8.0.50727.4053_none_03ca5532205cb096\mfc80ENU.dll', Binary was not built with debug information. 'mmc.exe': Loaded 'C:\Program Files\Microsoft SQL Server\100\Tools\Binn\Resources\1033\SqlManager.rll', Binary was not built with debug information. 'mmc.exe': Loaded 'C:\Windows\System32\msxml6.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Program Files\Microsoft SQL Server\90\Tools\Binn\SqlManager.dll', Cannot find or open the PDB file 'mmc.exe': Loaded 'C:\Windows\System32\wbem\wbemcntl.dll', Cannot find or open the PDB file The thread 'Win32 Thread' (0xf74) has exited with code 0 (0x0). Unhandled exception at 0x774d35e3 in mmc.exe: 0xC0000374: A heap has been corrupted.

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• pros and cons with server management gui tools to manage linux web servers

  - by ajsie

  i have stumbled upon these GUI tools that could help you manage your linux server through a web interface. ebox, webmin, ispconfig, zivios, ispcp, plesk, cpanel etc. i wonder what the pros and cons are with these solutions. a lot of people is saying that they are not as good as using pure command line (ssh) to manage your server. but i think thats yet another "linux are for advanced users" talk. i agree that a lot of things may only be done with the command line by editing directly in the configuration files. but i don't really want to do that every time and for everything. especially basic configurations these could manage. its like not having phpmyadmin for managing mysql. it would be a pain in the ass right? so if one wants to throw up a web server serving a php site oneself developed and wants all the usual stuff up and running (mysql, phpmyadmin, svn, webdav etc) is these tools the right way to go? and for more advanced features, one just use the terminal like old days. is this a smart way of managing a linux server? and which one would you choose? have you used any of these and could share your thoughts about them?

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• Is there a way to add AD LDS users to an AD Domain Group or allow them domain security rights?

  - by Tom

  I have a web application in which our outside customers need access to run transactions (stored procs on Sql Server) on our domain. We have looked into LDS to keep these users separate from our domain. The problem we are having is allowing the LDS users the AD security rights to access these stored procs. For administration purposes we would like to use an AD group for each transaction (stored proc) which has access to execute. Is there a way to add LDS users to this AD group or allow them the security rights to do this? We have setup LDS and can authenicate an AD user thru to runs these transactions. LDS is running on Server 08 R2. AD is also Server 08 R2. Thanks.

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• Hyper V Server 2012 Remote Management Using Workgroup

  - by Chris Kolenko

  I'm trying to remotely manage Hyper V server 2012 from a windows 8 pc, both client and server are on a workgroup. I've spent about 3-4 hours trying to get this working with no luck so far trying the following: Creating a new administrator on the server with the same details as the client ie. username / password. Add an entry into my hosts file to point to the remote ip by server name. Tried using HVRemote. Disabled both firewalls. The error that I'm getting is RPC Service Unavailable. How can I accomplish what I'm trying to do? Update Some of the operations on the Hyper-V Manager work. IE. Virtual Switch Works. I can open the New VM Wizard. I run into an error when creating a new Virtual Hard Disk tho. I've tried creating a VM without a hard disk, which works. Using the new hard disk wizard does not work either. I still can not see any Virtual Machines. RPC server unavailable. Unable to establish communication between 'ServerName' and 'ClientName'

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• API Management Solutions

  - by Mike

  I'm currently building an API and am looking for a tool to allow me to monitor (in a GUI) and rate limit usage. I've come across a few enterprise solutions including: http://apigee.com/ http://mashery.com/ http://www.layer7tech.com/ http://www.3scale.net/ The Apigee enterprise plan is exactly what I'm looking for but plans start at $3000 / month which is out of my price range. The other solutions are all either to expense or do not provide the solution I'm looking for. This led me to look at some open source options including: http://apiaxle.com/ https://code.google.com/p/varnish-apikey/wiki/UsageManual Varnish seems like a fairly complete solution, however I would need to build a GUI to visualise the data. My final option would to build a solution from scratch using EventMachine and ruby. Any advice?

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• Backup a Linked MySQL DB through SQL Server Management Studio

  - by saturdayplace

  I have a MySQL database that I'm able to query as a Linked Server through SQL Server Mgt Studio. I'm wondering if it's possible to create a backup task in Studio that will backup the MySQL DB, so that I could schedule automated backups. Is this possible?

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• Printer Management in AD Domain

  - by Untalented

  Hello, I normally push out all my printers via group policy preferences. However, the new copy machines I have are using some stranger drivers and I can not install x64/x86 drivers on the same machine for my clients to pull drivers from. So now I have two machines setup with the printer so they can pull drivers. Ontop of this there is specific driver configuration settings such as requiring the user to enter an access code to print set. Once the printer is installed via GPP, it puts everything to the default such as color mode, and other custom settings we like. I considered just using a Windows Print Server for this, but I do not know a way to push/delete these from clients like I can with GPP. Does anyone know how I can have a GPP copy the custom configuration I have set in the driver or have any recommendations?

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• Generating a record of the full(-ish) package management state

  - by intuited

  I'm about to make some system changes and I'd like to have a record of my current happy system state. Is there a convenient way to create a record of this? I'd like to keep track of info like currently installed packages and their versions which packages are pinned at what version which source (as in /etc/apt/sources.list) they were installed from whether they were installed directly or automatically installed as a dependency of a different package "unknown unknowns": ie stuff that I don't know that I should be keeping track of but which may be important when trying to figure out why something doesn't work In short, I'd like to keep as much of the aptitude database as possible. What's the best way to do this? It would be nice if the resulting records were easily readable, though this is not really essential. It would be extra nice if it were readily versionable through an SCM tool like git. There is a superuser question that partially answers this, but it only provides the list of currently installed packages.

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• Generating a record of the full(-ish) package management state

  - by intuited

  I'm about to make some system changes and I'd like to have a record of my current happy system state. Is there a convenient way to create a record of this? I'd like to keep track of info like currently installed packages and their versions which packages are pinned at what version which source (as in /etc/apt/sources.list) they were installed from whether they were installed directly or automatically installed as a dependency of a different package "unknown unknowns": ie stuff that I don't know that I should be keeping track of but which may be important when trying to figure out why something doesn't work In short, I'd like to keep as much of the aptitude database as possible. What's the best way to do this? It would be nice if the resulting records were easily readable, though this is not really essential. It would be extra nice if it were readily versionable through an SCM tool like git. There is a superuser question that partially answers this, but it only provides the list of currently installed packages.

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• Windows 7 Disk Management Spanned Volume vs Striped Volume

  - by Kairan

  Im looking for a reason why a person would use a Spanned volume rather than a Striped volume? If my understanding is correct Striped: Faster read/write speed than spanned, but I "assume" more wear+tear Spanned: No speed benefit like striped, but data is written sequentially and fills up Drive1 before filling up Drive2, so it saves on wear+tear Beyond that Im not sure if there is any other deciding factor on which to use. Definition found below: A striped volume uses the free space on more than one physical hard disk to create a bigger volume. Unlike a spanned volume, a striped volume writes across all volumes in the stripe in small blocks, distributing the load across the disks in the volume. The portions of disk used to create the volume need to be the same size; the size of the smallest free space included in the striped volume will determine.

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• Sql Server Management Studio: Change Prefix or Suffix characters

  - by PhantomDrummer

  I have an instance of SSMS 2008, for which the option to edit data in a table doesn't work. If I right-click on any table in the Object Explorer and select 'Edit top 200 rows' I get an error dialog 'Invalid prefix or suffix characters. (MS Visual Database Tools)'. The error seems to be associated specifically with SSMS, not with SQL Server (because this SSMS instance gives the same error no matter what database I connect to, but I've verified I can connect to some of the same databases using SSMS on other machines without the error). (However, our firewall prevents me using SSMS on other machines for some crucial tasks, so I do need to fix the problem). Googling for the error suggests that I should change the prefix, suffix or escape character, but without any indication of how you can make that change in SSMS. I'd also note that I'm not aware of having done any customization on SSMS since installing it, so would be surprised at having to make such a change now. Does anyone have any idea what the error message means or what I can do about it? Or how I can change the prefix/suffix/escape characters if that is really the problem.

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• Local Password Management

  - by ultimazombie88

  In our office (and I am sure many others) we access various websites and tend to share one account with our team. For example, we share credentials to Ebay and change them every few weeks to maintain some sense of security. However, we know this does not allow for any type of accountability for major changes. After some discussion we want to try to manage how we distribute credentials for sites that may not offer child accounts. Is there any smart and safe way to do this? If so how do you do it?

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• Linux process management

  - by tanascius

  Hello, I started a long running background-process (dd with /etc/urandom) in my ssh console. Later I had to disconnect. When I logged in, again (this time directly, without ssh), the process still seemed to to run. I am not sure what happened - I did not use disown. When I logged in later, the process was not listed in top at first, but after a while it reclaimed a high CPU percentage, as I expected. So I assume dd is still running. Now, I'd like to see the progress. I use kill -USR1 <pid> but nothing is printed. Is there any way to get the output again?

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• Word 2007 textbox management

  - by TheSavo

  I am updating a user manual that was initially written by somebody else. I know that most manuals are not written in Word, but our office only uses Microsoft Office applications. I am doing fairly well, creating and applying "styles". A lot of the directions in this manual require updated screenshots of the program it documents. … It's a big mess. </rant> One thing I am attempting to do is add “call outs” or Note text boxes like those seen in modern software manuals. I am attempting to do this with the Text box feature. However, I am having a hard time making them uniform in size and positioning. Does Word offer a way to manage the size and other properties of textboxes, similar to the way it allows you to manage text in styles? I feel that this could (or should) be possible. Is it possible to manage Text Boxes the same way you can manage styles?

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• DNS management for WHMCS / cPanel?

  - by RD.

  I currently have WHMCS (www.whmcs.com) that I use for the billing system for my hosting company. It integrates with cPanel and WHM. I want to be able to allow clients to: Change MX Records Change DNS info (CNAME, A Record etc) 1 can be done in cPanel. But 2 not. So my questions are: 1. Is there a program/application available that will give clients access to this? I.e. So they can change their DNS info? 2. How do other companies do it?

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• Help Email Account Management among multiple users

  - by CogitoErgoSum

  So I preface this with saying this may belong in IT Security, not too sure feel free to move. Currently we have an email account [email protected] - hosted via google apps (as is all our email). We had an incident where we had to terminate an employee. This employee however had the password for this account as we have 20-30 people utilizing it at any given point to manage customer emails etc. Thinking on this I feel there must be a better way to manage access. With Google you can associate upto 10 email accounts to another the problem is we have more like 20-30 people going. We were evaluating tools such as SalesForce and Assistly where people have their own login credentials and then the system contains the appropriate smtp information for the [email protected] email address to send emails from it rather than a users personal account. Aside from those options does anyone have any other thoughts? One suggestion floated was moving everyone to desktop clients and saving the PW info there so they could only login from their physical workstation but we may have situations where we'd like employees to work remotely. Does anyone have experience with this sort of system where ~20-30 people are responding from one email box and how to manage security and access?

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• Running django custom management commands with supervisord

  - by mfsaint

  I'd like to use supervisord to run some commands for my Django project but I keep getting the following error: supervisor.log: 2012-05-18 17:52:15,784 INFO spawnerr: can't find command 'source' If I remove the "source" command, the log shows the same error: can't find command 'python'. supervisord.conf excerpt: [program:django] directory=/home/mf/projects/djangopj/ command=beanstalkd -l 127.0.0.1 -p 11300 command=source /home/mf/virtualenvs/env/bin/activate command=python manage.py command1 command=python manage.py command2 user=mf autostart=true autorestart=true I tried removing the directory and adding the absolute path to the commands but I kept getting the same error. I run supervisord with the following command: supervisord -c supervisord.conf -l supervisor.log

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• Looking for FTP server that allows user management from database

  - by hughesdan

  I'm planning a server application that will handle files uploaded via FTP. The application must parse text documents that it receives and write them to a database (most likely a document-oriented database like Mongo). And the application must also relay all large binary files it receives to Amazon S3 for storage and hosting. I'd like to manage all aspects of the FTP server programmatically. For example, when a user registers via a web page the application should be able to create the user account in the database and provision a directory on the server for receiving files. I'm using a Linux server but am otherwise open to considering any programming language or framework. I experimented with VSFTPD but didn't like the way the application relies on config files and the creation of users and directories via the command line. Can someone please recommend what server framework I should consider? I'm a little biased toward solutions that leverage Javascript/Nodejs or Python. However, I'm open to anything that can run on a Linux box.

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• Win7 Domain User Profile- Desktop Icon management best practices request

  - by Doltknuckle

  Here's the situation: We have a large (5,000+ user) organization that is currently using folder redirection to manage the windows desktop icons. This folder is redirected to a network share where we can centrally manage the different sites and such. When a user tries to use a computer when the network is not available, they are unable to use any shortcuts in the Public folder. We only redirect the C:\Users\%username%\Desktop folder. Does anyone have any suggestions of how to go about managing desktop icons? We still want a central location to manage these items, but find a way to keep the system working when the network is unavailable. As a point of clarification, the network rarely goes down. We do have instances where a few computers do not have a network connection. Usually, something is simply unplugged. Since we have multiple sites, the line from a branch to the central office has gone down a few times. This is more of an attempt to maintain a positive end user experience when disconnected from the network.

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• Battery management of a Macbook

  - by darthvader

  I bought a Macbook Pro last week. I mostly use (and plan to use) it like a desktop with an external monitor. I use the system at least 15 hours a day. Now using the coconut battery application, I figured out that the capacity has the current capacity has reduced to 98% of the design capacity. I was wondering what is the best way to manage battery. Should it be always either charging or discharging Should it be plugged in all time. I barely get 2 hours and 30 minutes on battery. Is that normal? I run XCode, VMWare Fusion (for Visual Studio), Mail app, Chrome (5-10 tabs) and Itunes (mp3). The brightness is 60% on battery. I already did the calibration.

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• SQL Server 2005 SP3 on Windows 7 - No Management Studio

  - by Mike Thomas

  I've been trying for a day and a half now to get SQL Server 2005, DEV edition, to work on Windows 7, 64 bit prof. I install from the disk, then run SP 3. I get a failure on the Client Components section of the Installation Progress along with this vague message - Product : Client Components Product Version (Previous): 1399 Product Version (Final) : Status : Failure Log File : C:\Program Files\Microsoft SQL Server\90\Setup Bootstrap\LOG\Hotfix\SQLTools9_Hotfix_KB955706_sqlrun_tools.msp.log Error Number : 1712 Error Description : MSP Error: 1712 One or more of the files required to restore your computer to its previous state could not be found. Restoration will not be possible. I've uninstalled all Visual Studio and tried to make this as clean as possible, and have read a lot of the blog posts, but am really at my wits end about this. I am not a DBA, but I use SQL Server all the time when coding and testing apps. Does anyone have any ideas as to where I can get this sorted out? I've been ati this for a long time and have never encountered an installation as bad as this one. Thanks Mike Thomas

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