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  • Active Directory: how to be SURE users can change their own passwords?

    - by Latro
    Working on some project where a tool we have has to authenticate against AD connecting via LDAPS and perform password changes if required or requested. IN THEORY, the tool does that, and we have seen it work in other projects. IN PRACTICE, against this particular directory, it fails. Been driving me crazy. The particulars of the situation: Windows 2003 AD Defined a "technical user" for the LDAP connection with rights to change users passwords When password change is required - in this case, because pwdLastSet is 0 - the tool uses the technical account to go, bind to the controller and change the user password. If password change is not required but the user request it, then the bind is done with the user account. That last condition is the one that doesnt work. With the technical user the password change is possible, but with the user itself, it isnt. We get an error like this: LDAP access failed: javax.naming.directory.InvalidAttributeValueException: [LDAP: error code 19 - 0000052D: AtrErr: DSID-03190F00, #1: 0: 0000052D: DSID-03190F00, problem 1005 (CONSTRAINT_ATT_TYPE), data 0, Att 9005a (unicodePwd) no idea what DSID-03190F00 means cause it doesnt seem to be anywhere in google :-/ Been looking at several MS documentation pages and frankly, I'm not understanding one bit of it. There is some "control access right" called User-Change-Password that may, or may not, control what objects have the right to change their own password, which may, or may not, have to do with ACE and ACLs... There is GPO. There is maybe the password policy but it is only set to ask for passwords of 6 chars or more... Can anybody explain to me in easy-to-check steps how can I go and tell the AD admin guy (who is as lost as me) what to do to ensure that users in the AD directory (objectClass top,person,organizationalPerson and user) are able to change their own passwords by themselves? Thanks in advance

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  • Does Active Directory on Server 2003 R2 support IPv6 subnets in Sites and Services?

    - by NorbyTheGeek
    I've been experimenting with IPv6 at our organization. The domain controllers (all 2003 R2) and most of the servers (2003 R2 / 2008 / 2008 R2) have IPv6 configured. We have a subnet assigned through a tunnel provider. Currently, the only workstation that is running IPv6 is mine. (Windows 7) I have been noticing that my workstation is picking domain controllers in other sites for things like DFS, and I finally realized that I don't have the IPv6 subnets set up in Active Directory Sites and Services (ADSS). But when I try to add a IPv6 prefix in ADSS, it tells me: Windows cannot create the object 2001:xxxx:xxxx:xxxx::/64 because: The object name has bad syntax. I believe I may be using the 2008 version of the admin tools (ADSS reports version 6.1.7601.17514) so I'm wondering if maybe my 2003 R2 Active Directory schema doesn't support configuring IPv6 subnets in ADSS. Is this true? UPDATE Even with 2008 R2 schema in Active Directory, I'm having the same problem. How can I get my IPv6 subnets into Sites and Services?

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  • Tic-Tac-Toe AI: How to Make the Tree?

    - by cam
    I'm having a huge block trying to understand "trees" while making a Tic-Tac-Toe bot. I understand the concept, but I can't figure out to implement them. Can someone show me an example of how a tree should be generated for such a case? Or a good tutorial on generating trees? I guess the hard part is generating partial trees. I know how to implement generating a whole tree, but not parts of it.

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  • Closure Tables - Is this enough data to display a tree view?

    - by James Pitt
    Here is the table I have created by testing the closure table method. | id | parentId | childId | hops | | | | | 270 | 6 | 6 | 0 | 271 | 7 | 7 | 0 | 272 | 8 | 8 | 0 | 273 | 9 | 9 | 0 | 276 | 10 | 10 | 0 | 281 | 9 | 10 | 1 | 282 | 7 | 9 | 1 | 283 | 7 | 10 | 2 | 285 | 7 | 8 | 1 | 286 | 6 | 7 | 1 | 287 | 6 | 9 | 2 | 288 | 6 | 10 | 3 | 289 | 6 | 8 | 2 | 293 | 6 | 9 | 1 | 294 | 6 | 10 | 2 I am trying to create a simple tree of this using PHP. There does not seem to be enough data to create the table. For example, when I look purely at parentId = 6: -Part 6 -Part 7 - ? - ? -Part 9 - ? - ? We know that parts 8 and 10 exists below Part 7 or 9, but not which. We know that part 10 exists at both 3 and 4 nodes deep but where? If I look at other data in the table it is possible to tell it should be: - Part 6 - Part 7 - Part 9 - Part 10 - Part 9 - Part 10 I thought one of the benefits of closure tables was there was no need for recursive queries? Could you help explain what I am doing wrong? EDIT: For clarification, this is a mapping table. There is another table called "parts" which has a column called part_id that correlates to both the parentId and childId columns in the "closure" table. The "id" column in the table above (closure) is just for the purposes of maintaining a primary key. It is not really necessary. The methods I have used to create this closure table is described in the following article: http://dirtsimple.org/2010/11/simplest-way-to-do-tree-based-queries.html EDIT2: It can have two and three hops. I will explain easier by assigning names to the items. Part 6 = Bicycle Part 7 = Gears Part 8 = Chain Part 9 = Bolt Part 10 = Nut Nut is part of Bolt. The Bolt and Nut combo exists directly within Bicycle and within Gears which is part of Bicycle. In relation to what method to use I have looked at Adjacency, Edges, Enum Paths, Closures, DAGS(networks) and the Nested Set Model. I am still trying to work out what is what, but this is an extremely complex component database where there are multiple parents and any modification to a sub-tree must propogate through the other trees. More importantly there will be insertions, deletions and tree views that I wish to avoid recursion during general use, even at the cost of database space and query time during entry.

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  • Ubuntu Touch porting: bad file tree

    - by fcole90
    I'm trying to port ubuntu touch to Samsung Galaxy S Plus but I'm finding it really difficult. The problems at first were to find a good CM rom as base, because this device is not officially supported by CM. Currently I'm using EhndroixIII but now I'm founding a lot of problems with the porting guide. In particular my file tree seems totally different from the one of the guide. For example, there is no device folder. What can I do to solve? Should I create those files? My repository is https://github.com/fcole90/utouch-sgsp.git

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  • How to code Umbraco XSLT to retrieve Nodes from unrelated tree

    - by Phil.Wheeler
    I have an Umbraco site for personal use that I want to also use as a blog. I'm trying to put together the XSLT to grab the top three posts from the nodes in the Blog tree (node id = 1063) and display these on a tab page that is incorporated into the front page. The following image illustrates the node hierarchy: With my extremely limited appreciation of XSLT, I'm unable to grab the node ID of the "Blog" id and take the 3 pages below that to display in the "Top Posts" part of my site which is found under the "Frontpage Tabs" node. All the examples I find work with the "current page", which is typically the top-level node, "Personal Site". How should I accomplish this?

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  • How to represent a tree structure in NoSQL

    - by Vlad Nicula
    I'm new to NoSQL and have been playing around with a personal project on the MEAN stack (Mongo ExpressJs AngularJs NodeJs). I'm building a document editor of sorts that manages nodes of data. Each document is actually a tree. I have a CRUD api for documents, to create new trees and a CRUD api for nodes in a given document. Right now the documents are represented as a collection that holds everything, including nodes. The children parent relationship is done by ids. So the nodes are an map by id, and each node has references to what nodes are their children. I chose this "flat" approach because it is easier to get a node by id from a document. Being used to having a relation table between nodes and documents, a relation table between nodes and children nodes I find it a bit weird that I have to save the entire "nodes" map each time I update a node. Is there a better way to represent such a data type in NoSQL?

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  • What is the name of this tree?

    - by Daniel
    It has a single root and each node has 0..N ordered sub-nodes . The keys represent a distinct set of paths. Two trees can only be merged if they share a common root. It needs to support, at minimum: insert, merge, enumerate paths. For this tree: The +-------+----------------+ | | | cat cow dog + +--------+ + | | | | drinks jumps moos barks + | milk the paths would be: The cat drinks milk The cow jumps The cow moos The dog barks It's a bit like a trie. What is it?

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  • Tree position terminology/naming

    - by wst
    This is a naming things question. I am processing trees (XML documents), and there are often special rules applied to nodes based on structure. It's been very difficult coming up with concise naming conventions for some cases, namely for nodes in the first position among their siblings, along with some recursive relationship: Given an arbitrary node, I want to describe its first child, and then that node's first child, and so on recursively. Given another arbitrary node, I want to describe its parent if the parent is first among its siblings, and that parent's parent if it's first, and so on recursively. Is there existing terminology to describe these tree positions? How would you name a variable or function that captures one of these cases so that it's intuitive to an unfamiliar developer trying to understand an algorithm?

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  • ASP.NET: Using pickup directory for outgoing e-mails

    - by DigiMortal
    Sending e-mails out from web applications is very common task. When we are working on or test our systems with real e-mail addresses we don’t want recipients to receive e-mails (specially if we are using some subset of real data9. In this posting I will show you how to make ASP.NET SMTP client to write e-mails to disc instead of sending them out. SMTP settings for web application I have seen many times the code where all SMTP information is kept in app settings just to read them in code and give to SMTP client. It is not necessary because we can define all these settings under system.web => mailsettings node. If you are using web.config to keep SMTP settings then all you have to do in your code is just to create SmtpClient with empty constructor. var smtpClient = new SmtpClient(); Empty constructor means that all settings are read from web.config file. What is pickup directory? If you want drastically raise e-mail throughput of your SMTP server then it is not very wise plan to communicate with it using SMTP protocol. it adds only additional overhead to your network and SMTP server. Okay, clients make connections, send messages out and it is also overhead we can avoid. If clients write their e-mails to some folder that SMTP server can access then SMTP server has e-mail forwarding as only resource-eager task to do. File operations are way faster than communication over SMTP protocol. The directory where clients write their e-mails as files is called pickup directory. By example, Exchange server has support for pickup directories. And as there are applications with a lot of users who want e-mail notifications then .NET SMTP client supports writing e-mails to pickup directory instead of sending them out. How to configure ASP.NET SMTP to use pickup directory? Let’s say, it is more than easy. It is very easy. This is all you need. <system.net>   <mailSettings>     <smtp deliveryMethod="SpecifiedPickupDirectory">       <specifiedPickupDirectory pickupDirectoryLocation="c:\temp\maildrop\"/>     </smtp>   </mailSettings> </system.net> Now make sure you don’t miss come points: Pickup directory must physically exist because it is not created automatically. IIS (or Cassini) must have write permissions to pickup directory. Go through your code and look for hardcoded SMTP settings. Also take a look at all places in your code where you send out e-mails that there are not some custom settings used for SMTP! Also don’t forget that your mails will be written now to pickup directory and they are not sent out to recipients anymore. Advanced scenario: configuring SMTP client in code In some advanced scenarios you may need to support multiple SMTP servers. If configuration is dynamic or it is not kept in web.config you need to initialize your SmtpClient in code. This is all you need to do. var smtpClient = new SmtpClient(); smtpClient.DeliveryMethod = SmtpDeliveryMethod.SpecifiedPickupDirectory; smtpClient.PickupDirectoryLocation = pickupFolder; Easy, isn’t it? i like when advanced scenarios end up with simple and elegant solutions but not with rocket science. Note for IIS SMTP service SMTP service of IIS is also able to use pickup directory. If you have set up IIS with SMTP service you can configure your ASP.NET application to use IIS pickup folder. In this case you have to use the following setting for delivery method. SmtpDeliveryMethod.PickupDirectoryFromIis You can set this setting also in web.config file. <system.net>   <mailSettings>     <smtp deliveryMethod="PickupDirectoryFromIis" />   </mailSettings> </system.net> Conclusion Who was still using different methods to avoid sending e-mails out in development or testing environment can now remove all the bad code from application and live on mail settings of ASP.NET. It is easy to configure and you have less code to support e-mails when you use built-in e-mail features wisely.

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  • How do I resolve active directory connection errors when using dcpromo?

    - by Middletone
    When attempting to promote a secondary server to an existing active directory forest I receive the following error message and can no longer continue. Failed to examine the active directory forest. Value ridMasterDSA.partentDN not found What can cause this and what can be done to fix it? Both servers are 2008 running on x64 and can see each other on the network via their names. FYI: The firewall is turned off on both machines so there should be no issue there. Also the server that i'm adding is already a part of the domain. One server is already a domain controller but I want to add a second to it.

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  • Should root ever own files in my (linux) home directory?

    - by Darren Cook
    This question started off asking why my history file wasn't working properly. Then I noticed it was -rw------- 1 root root and hadn't been updated since 2012-09-11. I changed the ownership, problem fixed. But now I see some other files are owned by root: .gitconfig .pearrc .viminfo Can I safely change them to be owned by my normal user, not root? I'm scratching my head trying to work out if there is a downside, or a security consequence. Losing seven weeks history is actually quite painful, because I lean on it a lot (e.g. to remind how I last did an archive). Would it be reasonable to set up a cron job to email me if it finds any files in my home directory owned by anyone else but me? Rephrased: is there ever a good reason for root to own a file in my home directory?

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  • How do we keep Active Directory resilient across multiple sites?

    - by Alistair Bell
    I handle much of the IT for a company of around 100 people, spread across about five sites worldwide. We're using Active Directory for authentication, mostly served to Linux (CentOS 5) systems via LDAP. We've been suffering through a spate of events where the IP tunnel between the two major sites goes down and the secondary domain controller at one site can't contact the primary domain controller at the other. It seems that the secondary domain controller starts denying user authentication within minutes of losing connectivity to the primary. How do we make the secondary domain controller more resilient to downtime? Is there a way for it to cache the entire directory and/or at least keep enough information locally to survive a multi-hour disconnection? (We're all in a single organizational unit if that makes any difference.) (The servers here are Windows Server 2003; don't assume that we set this up correctly. I'm a software engineer, not an IT specialist.)

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  • Does Exchange 2010 lift the restriction that DL addresses must be in Active Directory?

    - by Justin Grant
    We'd like to enable end-users to be able to create and maintain their own email distribution lists in Exchange 2010, where those lists may include users inside the company but also customers, partners, etc. who are outside the company. One of the limitations in Exchange 2007 (see this question) was that any member of a DL had to have an entry in active directory. You couldn't just take a group of email addresses (both inside and outside my company) and create an Exchange DL with those addresses without involving Active Directory admins to create entries for each external user. For a company creating hundreds of small mailing lists every month, this was an unacceptable IT expense. So we had to use a separate mailing list solution (GNU mailman) for DLs which included external users. Is this limitation relaxed in Exchange 2010 so we can throw away GNU mailman and use Exchange instead?

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  • Active Directory Support Folder Redirection AND Portable Home Directories?

    - by Robert F
    Does anyone here know if Active Directory will support the use of both Windows Folder Redirection and Mac OS X's Portable Home Directories for synchronizing a user's files to a remote share? I want to synchronize my user's files with a remote share as a way of backing up their data. This is fairly straightforward if a user has only a Windows computer or only a Mac computer. However, will Active Directory support a situation in which a user has both types of computers or they have a Mac on which they're running Windows within Parallels? If I configure a remote share via Group Policies for their Windows files and then configure a different share for their Mac files via ADUC, when they change a file on either computer, will AD know which computer the file was changed on and synchronize that file with the appropriate remote folder? Thanks!

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  • Is it possible to extend the Active Directory schema in a Windows 2003 DC (NOT R2) to support DFSR?

    - by JohannesH
    We're in the process of installing a brand new Windows Server 2008 Web cluster and we would like to synchronize some files between the servers. The problem is that the DC in the domain is an old Windows Server 2003 Standard (NOT R2) which apparently doesn't contain some extension to the AD schema. Is it possible to upgrade the schema without upgrading the DC servers to R2? When I try to create a Replication Group on the 2008 Server I get the following message: --------------------------- Error --------------------------- srv.XXXXXX.XX: The Active Directory Domain Services schema on domain controller activedc07.srv.XXXXXX.XX cannot be read. This error might be caused by a schema that has not been extended, or was extended improperly. See Help and Support Center for information about extending the Active Directory Domain Services schema. Schema version 30 is not supported. --------------------------- OK ---------------------------

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  • How to do safely test Biztalk app by manipulating the Windows OS system time w/o breaking the Active Directory?

    - by melaos
    i have a biztalk - window service tied middleware application which talks to other system. recently we had a request to test for scenarios which relates to the date. as we have a lot of places in the application which uses the .net Datetime.Now value, we don't really want to go into the code level and change all these values. so we're looking at the simplest way to test which is to just change the OS time. but what we notice is that sometimes when we change the system date time, we will get account lock out due to Active Directory. So my question is what's a good and safe way that i can test for future dates, etc by changing the windows OS system date time but without causing any issues with the Active Directory. And where can i find out more about AD and how it issues token and what's the correlation with the system date time changes. Thanks! ~m

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  • ADT-like polymorphism in Java (without altering class)

    - by ffriend
    In Haskell I can define following data type: data Tree = Empty | Leaf Int | Node Tree Tree and then write polymorphic function like this: depth :: Tree -> Int depth Empty = 0 depth (Leaf n) = 1 depth (Node l r) = 1 + max (depth l) (depth r) In Java I can emulate algebraic data types with interfaces: interface Tree {} class Empty implements Tree {} class Leaf implements Tree { int n; } class Node implements Tree { Tree l; Tree r; } But if I try to use Haskell-like polymorphism, I get an error: int depth(Empty node) { return 0; } int depth(Leaf node) { return 1; } int depth(Node node) { return 1 + Math.max(depth(node.l), depth(node.r)); // ERROR: Cannot resolve method 'depth(Tree)' } Correct way to overcome this is to put method depth() to each class. But what if I don't want to put it there? For example, method depth() may be not directly related to Tree and adding it to class would break business logic. Or, even worse, Tree may be written in 3rd party library that I don't have access to. In this case, what is the simplest way to implement ADT-like polymorpism? Just in case, for the moment I'm using following syntax, which is obviously ill-favored: int depth(Tree tree) { if (tree instanceof Empty) depth((Empty)tree) if (tree instanceof Leaf) depth((Leaf)tree); if (tree instanceof Node) depth((Node)tree); else throw new RuntimeException("Don't know how to find depth of " + tree.getClass()); }

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  • How to ensure I can replace files in a directory?

    - by chaiguy
    I want to completely replace one directory on the file system with another directory in a temp directory. The tricky part is that the files in the folder to be replaced could be being used at any time, causing the replace operation to fail. I need to somehow wait on an exclusive lock on the directory so that I can delete all of its contents without failing, so I can then move the other directory in to replace it. To make matters potentially more difficult, the process that is likely to be using the files is my own (via a Lucene.net library and out of my hands). So it can't be a process-level lock it has to be an object-level lock. Any thoughts on how I might do this? Or should I just keep re-attempting until it succeeds? I guess that's always an option.

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  • How can I get the domain name for a user logged into a Mac via Active Directory

    - by Lawrence Johnston
    In my Cocoa app how can I get the current user's domain when they're logged in via Active Directory? I need to determine two things: 1. If the current user is logged on to an Active Directory domain (only need to handle Active Directory). 2. If 1, the domain of the user. I've found references to Directory Services and the Open Directory Programming Guide but the latter is 10.6 only (I must support 10.5+) and I could not find any examples for the former that gave me an idea of what I needed to do.

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  • Should I manage authentication on my own if the alternative is very low in usability and I am already managing roles?

    - by rumtscho
    As a small in-house dev department, we only have experience with developing applications for our intranet. We use the existing Active Directory for user account management. It contains the accounts of all company employees and many (but not all) of the business partners we have a cooperation with. Now, the top management wants a technology exchange application, and I am the lead dev on the new project. Basically, it is a database containing our know-how, with a web frontend. Our employees, our cooperating business partners, and people who wish to become our cooperating business partners should have access to it and see what technologies we have, so they can trade for them with the department which owns them. The technologies are not patented, but very valuable to competitors, so the department bosses are paranoid about somebody unauthorized gaining access to their technology description. This constraint necessitates a nightmarishly complicated multi-dimensional RBAC-hybrid model. As the Active Directory doesn't even contain all the information needed to infer the roles I use, I will have to manage roles plus per-technology per-user granted access exceptions within my system. The current plan is to use Active Directory for authentication. This will result in a multi-hour registration process for our business partners where the database owner has to manually create logins in our Active Directory and send them credentials. If I manage the logins in my own system, we could improve the usability a lot, for example by letting people have an active (but unprivileged) account as soon as they register. It seems to me that, after I am having a users table in the DB anyway (and managing ugly details like storing historical user IDs so that recycled user IDs within the Active Directory don't unexpectedly get rights to view someone's technologies), the additional complexity from implementing authentication functionality will be minimal. Therefore, I am starting to lean towards doing my own user login management and forgetting the AD altogether. On the other hand, I see some reasons to stay with Active Directory. First, the conventional wisdom I have heard from experienced programmers is to not do your own user management if you can avoid it. Second, we have code I can reuse for connection to the active directory, while I would have to code the authentication if done in-system (and my boss has clearly stated that getting the project delivered on time has much higher priority than delivering a system with high usability). Third, I am not a very experienced developer (this is my first lead position) and have never done user management before, so I am afraid that I am overlooking some important reasons to use the AD, or that I am underestimating the amount of work left to do my own authentication. I would like to know if there are more reasons to go with the AD authentication mechanism. Specifically, if I want to do my own authentication, what would I have to implement besides a secure connection for the login screen (which I would need anyway even if I am only transporting the pw to the AD), lookup of a password hash and a mechanism for password recovery (which will probably include manual identity verification, so no need for complex mTAN-like solutions)? And, if you have experience with such security-critical systems, which one would you use and why?

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  • Grep, no value return

    - by Daniel S.
    I am searching for a word, in this case "hehe" that is located in the file findTest by using grep, but when i initiate the search: grep -r "hehe" or grep -lr "hehe" it starts but after 5 min waiting nothing happens, even if i am in the same directory as the file. the only way i get a results straight away is being in the same directory and typing: grep "hehe" findTest Are their any other ways to search for a word? even if not in the same directory.

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