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• Can Eclipse generate method-chaining setters

  - by Chris R

  I'd like to generate method-chaining setters (setters that return the object being set), like so: public MyObject setField (Object value) { this.field = value; return this; } This makes it easier to do one-liner instantiations, which I find easier to read: myMethod (new MyObject ().setField (someValue).setOtherField (someOtherValue)); Can Eclipse's templates be modified to do this? I've changed the content to include return this; but the signature is not changed.

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• Incompatible group permissions in Linux - Is it a bug?

  - by Sachin

  I am on Ubuntu 11.04. I am creating another user and placing an existing user in the group of other user, hoping to write in the home directory of other user. # uname -a Linux vini 2.6.38-11-generic #50-Ubuntu SMP Mon Sep 12 21:18:14 UTC 2011 i686 athlon i386 GNU/Linux # whoami sachin # su root # useradd -m -U foo // create user foo # usermod -a -G foo sachin // add user `sachin' to group `foo' # chmod 770 /home/foo/ # exit # whoami sachin # cd /home/foo/ bash: cd: /home/foo/: Permission denied # groups sachin sachin : sachin foo This is totally weird. Though user sachin is in group foo, and group bits for /home/foo/ is set to rwx, sachin can't chdir to /home/foo/. I am not able to understand this. But, if at the exit step, I switch to sachin user from root, this is what happens: # uname -a Linux vini 2.6.38-11-generic #50-Ubuntu SMP Mon Sep 12 21:18:14 UTC 2011 i686 athlon i386 GNU/Linux # whoami sachin # su root # useradd -m -U foo // create user foo # usermod -a -G foo sachin // add user `sachin' to group `foo' # chmod 770 /home/foo/ # su sachin # whoami sachin # cd /home/foo/ # ls examples.desktop Now, whatever is happening here is totally incomprehensible. Does su sachin inherits some permissions from the root user at this step? Any explanations would be much appreciated.

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• Samba: map domain group to local one

  - by user285467

  I have a problem with mapping pure domain group to one existing on UNIX system. When I map NT domain account by default samba picks local SID - one that can be acquired via the command; net getlocalsid Instead of SID that comes from domain; net getdomainsid This is the behavior that I do not understand. I can explicitly set the SID to the domain one. E.g.: net groupmap add sid=[DOMAIN SID]-[RID] ntgroup=[DOMAIN group] unixgroup=[UNIX group] type=l However the command getent group | grep 'DOMAIN group indicates this group to be domain one - GID created in accordance to RID backend in use, not the GID of 'UNIX group' as expected. Worth to mention I use the winbind. Strange thing is that I already have such mapping in place for other 'DOMAIN group2' that getent group reports with GID of local UNIX group with all members of the 'DOMAIN group2'. Now the question is how to populate such behavior for other of my groups???

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• Change default profile directory per group

  - by Joel Coel

  Is it possible to force windows to create profiles for members of one active directory group in a different folder from members in another active directory group? The school here uses DeepFreeze to protect public computers. In a nutshell, DeepFreeze prevents all changes to a hard drive such that every time you restart the machine the disk is identical to it was at the time you froze it. This is a bit different than restoring to an image, in that it never really wrote changes to disk in a permanent way in the first place. This has a few advantages over images: faster recover times, and it's easy to thaw the machine for a few minutes to perform maintenance such as windows updates (which can even be automated). DeepFreeze also allows you to configure a "thawspace" partition, where changes are persistent across reboots. One of the weaknesses of DeepFreeze is that you end up needing to create a new profile every time you log in, unless your profile existed at the time the machine was frozen. And even then, any changes you make to your profile while working on a frozen machine are lost. As students have frequent legitimate needs to log in to our classroom machines, there is currently a lot of cleanup involved from time to time in removing their old profiles and changes, so I want to extend DeepFreeze to protect our classroom computers as well as public computers. The problem is that faculty have a real need to keep a stateful profile locally on these classroom computers. The solution I would like to use is to configure Windows via group policy (or even manually, if that's the way I'll have to do it) to place profile folders on the thawspace partition, but only for members of the faculty security group. Is this possible?

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• Override ActiveRecord#save, Method Alias? Trying to mixin functionality into save method...

  - by viatropos

  Here's the situation: I have a User model, and two modules for authentication: Oauth and Openid. Both of them override ActiveRecord#save, and have a fair share of implementation logic. Given that I can tell when the user is trying to login via Oauth vs. Openid, but that both of them have overridden save, how do "finally" override save such that I can conditionally call one of the modules' implementations of it? Here is the base structure of what I'm describing: module UsesOauth def self.included(base) base.class_eval do def save puts "Saving with Oauth!" end def save_with_oauth save end end end end module UsesOpenid def self.included(base) base.class_eval do def save puts "Saving with OpenID!" end def save_with_openid save end end end end module Sequencer def save if using_oauth? save_with_oauth elsif using_openid? save_with_openid else super end end end class User < ActiveRecord::Base include UsesOauth include UsesOpenid include Sequencer end I was thinking about using alias_method like so, but that got too complicated, because I might have 1 or 2 more similar modules. I also tried using those save_with_oauth methods (shown above), which almost works. The only thing that's missing is that I also need to call ActiveRecord::Base#save (the super method), so something like this: def save_with_oauth # do this and that super.save # the rest end But I'm not allowed to do that in ruby. Any ideas for a clever solution to this?

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• Software restriction policies set in the registry don't update Local Group Policy

  - by Jon Rhoades

  The joys of a Samba domain... First off Domain Group policy can't be used until Samba 4 arrives. We need to setup Software Restriction Policies (SRPs) on most of the computers in our Samba domain and I would dearly like to automate this. (We are moving away from just disabling the Windows installer). The traditional way is to set SRPs using Local Group Policy (LGP) Computer Conf-Windows Settings-SRP but this involves visiting every machine as it can't be set using in NTConfig.pol. It is possible to attempt to create the SRPs directly in the registry: [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Safer\CodeIdentifiers\262144\Paths\{30628f61-eb47-4d87-823b-6683a09eda87}] "LastModified"=hex(b):40,a2,94,09,b5,5d,ca,01 "Description"="" "SaferFlags"=dword:00000000 "ItemData"="C:\\location\\subfolder" SaferFlags DWORD seems to be what turns it on or off, but although this seems to work it does not update the Local Group Policy - SRPs still show as "No SRPs Defined". Where does the LGP store this setting - is it even in the registry and more importantly - Is there a cleverer way of setting up SRPs?

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• Map the 'Domain Admins' group into the local Ubuntu 'admin' group

  - by Miquella

  I have configured an Ubuntu 10.04 box to connect to our domain (Windows 2003 R2) using Likewise-Open. All the users can authenticate as expected. However, the domain administrators do not have administrative privileges to the machine. After working at this for a few hours, I've determined what I think may be a solution: if I map the 'Domain Admins' group from the Active Directory into the local 'admin' group, the users should get the appropriate permissions. But I have no idea how to do that. Does this even sound like the correct approach? A similar question was asked on StackOverflow and then migrated here. But it was never answered as it was recommended to be asked here instead. Thanks in advance!

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• Group policy reset upon restart?

  - by sc_ray

  Is it possible for a group policy to revert back to its original state upon server restart? Our servers are hosted as a Virtual Machine on the rack. We had to restart our server for some reason and all of a sudden we cannot remote desktop into the server any more. Pinging the server succeeds but RDPing into it fails. My assumption is that the group policy has reverted back preventing any remote desktop connections from taking place. Is that a possibility? Since the network is managed by another group, we don't have the authority to physically look into what's going on with this particular VM. Can somebody suggest some ideas? Thanks

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• Enable group policy for everything but the SBS?

  - by Jerry Dodge

  I have created a new group policy to disable IPv6 on all machines. There is only the one default OU, no special configuration. However, this policy shall not apply to the SBS its self (nor the other DC at another location on a different subnet) because those machines do depend on IPv6. All the rest do not. I did see a recommendation to create a new OU and put that machine under it, but many other comments say that is extremely messy and not recommended - makes it high maintenance when it comes to changing other group policies. How can I apply this single group policy to every machine except for the domain controllers? PS - Yes, I understand IPv6 will soon be the new standard, but until then, we have no intention to implement it, and it in fact is causing us many issues when enabled.

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• How to Create a Send/Receive Group for RSS Feeds in Outlook 2013

  - by Lori Kaufman

  If you choose to manually update your RSS feeds on demand, there is a way to do this without having to send and receive your email at the same time. You can create a special Send/Receive Group for your RSS feeds. NOTE: If you choose to not have your RSS feeds updated automatically, creating a separate Send/Receive Group for your RSS feeds is useful so you can update them when you want to. To begin creating a new Send/Receive Group, click the File tab. Click Options in the menu on the left side of the Account Information screen. On the Outlook Options dialog box, click Advanced in the left pane list of menu options. In the right pane, scroll down to the Send and receive section and click the Send/Receive button. On the Send/Receive Groups dialog box, click New next to the list of groups. On the Send/Receive Group Name dialog box, enter a name, such as “RSS Feeds On Demand Only,” in the edit box and click OK. For all the other Accounts, except RSS, in the list on the left, de-select the Include RSS Feeds in this Send/Receive group check box so there is NO check mark in the box. Click RSS under Accounts, and make sure the Include RSS Feeds in this Send/Receive group check box is selected. NOTE: If you want to have a separate Send/Receive group for each RSS Feed or group certain RSS feeds together, you can turn on and off specific feeds in the lower half of the Send/Receive Settings dialog box. If you decide to do this, you might specify a more appropriate name for each Send/Receive group for the RSS feeds. Click OK to accept your changes and close the Send/Receive dialog box. Make sure your new Send/Receive group is selected in the list of groups on the Send/Receive Groups dialog box. De-select all the options under Setting for group section at the bottom of the dialog box and click Close. This prevents this group from being updated when you click the general Send/Receive button to retrieve your email. Click OK on the Outlook Options dialog box. To manually update your RSS feeds, click the Send / Receive tab. Click Send/Receive Groups and select your new group from the drop-down list. You can change, rename, or remove any Send/Receive Groups you create by accessing the Send/Receive Groups dialog box again.     

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• Why does Java's invokevirtual need to resolve the called method's compile-time class?

  - by Chris

  Consider this simple Java class: class MyClass { public void bar(MyClass c) { c.foo(); } } I want to discuss what happens on the line c.foo(). At the bytecode level, the meat of c.foo() will be the invokevirtual opcode, and, according to the documentation for invokevirtual, more or less the following will happen: Look up the foo method defined in compile-time class MyClass. (This involves first resolving MyClass.) Do some checks, including: Verify that c is not an initialization method, and verify that calling MyClass.foo wouldn't violate any protected modifiers. Figure out which method to actually call. In particular, look up c's runtime type. If that type has foo(), call that method and return. If not, look up c's runtime type's superclass; if that type has foo, call that method and return. If not, look up c's runtime type's superclass's superclass; if that type has foo, call that method and return. Etc.. If no suitable method can be found, then error. Step #3 alone seems adequate for figuring out which method to call and verifying that said method has the correct argument/return types. So my question is why step #1 gets performed in the first place. Possible answers seem to be: You don't have enough information to perform step #3 until step #1 is complete. (This seems implausible at first glance, so please explain.) The linking or access modifier checks done in #1 and #2 are essential to prevent certain bad things from happening, and those checks must be performed based on the compile-time type, rather than the run-time type hierarchy. (Please explain.)

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• Group vs role (Any real difference?)

  - by Ondrej

  Can anyone tell me, what's the real difference between group and role? Ive been trying to figure this out for some time now and the more information I read, the more I get the sence, that this is brought up just to confuse people and there is no proper difference in this. Both can do the other one's job. Ive always used a group to manage users and their access rights. Recently, I've come accross an administration software, where is a bunch of users. Each user can have assigned a module (whole system is split into a few parts called modules ie. Administration module, Survey module, Orders module, Customer module). On top of it, each module have a list of functionalities, that can be allowed or denied for each user. So let's say, a user John Smith can access module Orders and can edit any order, but havent given a right to delete any of them. If there was more users with the same competency, I would use a group to manage that. I would aggregate such users into the same group and assign access rights to modules and their functions to the group. All users in the same group would have the same access rights. Why call it a group and not role? I don't know, I just feel it that way. It seems to me, that simply it just doesnt really matter :] But I still would like to know the real difference. What about you guys? Any suggestions why this should be rather called role than group or the other way round? Thanks to everyone.

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• Log files for group policy application deployment

  - by Cyril

  I'm looking into using group policy to deploy a couple of applications. I want to have the log of each installation written to a shared folder on a file server for tracking purposes. I can create the log if I pass the appropriate parameters. For example: msiexec /i Package.msi /l*vx c:\Package.log However using group policy for the deployment, you can't pass any parameters to the installation file. Is there anyway to specify the log file location in the process of creating the msi package?

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• Windows 7 - Group Policy - Allow RDP Credentials to be Saved

  - by barfoon

  Hey everyone, Im trying to use RDP and save my credentials in a file so I dont have to entire it each time I connect. I remember doing it before and it involved changing a group policy setting. What exactly do I need to change in Group Policy within Windows 7 in the host & client machines to accomplish this? Thanks,

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• Windows 7 - Group Policy - Allow RDP Credentials to be Saved

  - by barfoon

  Hey everyone, Im trying to use RDP and save my credentials in a file so I dont have to entire it each time I connect. I remember doing it before and it involved changing a group policy setting. What exactly do I need to change in Group Policy within Windows 7 in the host & client machines to accomplish this? Thanks,

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• Naming Suggestions For A Function Providing Method Chaining In A Different Way

  - by sid3k

  I've coded an experimental function which makes passed objects chainable by using high order functions. It's name is "chain" for now, and here is a usage example; chain("Hello World") (print) // evaluates print function by passing "Hello World" object. (console.log,"Optional","Parameters") (returnfrom) // returns "Hello World" It looks lispy but behaves very different since it's coded in a C based language, I don't know if there is a name for this idiom and I couldn't any name more suitable than "chain". Any ideas, suggestions?

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• Deleting Temporary Internet Files through Group Policy

  - by Kami

  I have a domain controller running on Windows 2008 Server R2 and users login to application servers on which Windows 2003 Server SP2 is installed. I have applied a Group Policy to clean temporary internet files on exit i.e to delete all temporary internet files when users close the browser. But the group policy doesn't seem to work as user profile size keeps on increasing and the major space is occupied by temporary internet files therefore increasing the disk usage. How can i enforce automatic deletion of temporary internet files?

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• User/Group Policies in Windows 2000 domain controller

  - by Chris

  In Server 2000 active directory, I have 5 groups of users and every user has different policies. The problem is that a different desktop loads for only one specific user no matter what changes I make in administrative templates. If I copy this user profile and paste it into another group with a different name, windows workaround loads as it should, but some policies are not applied. Does anybody know a way to solve this problem instead of creating a new group and user from scratch?

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• User/Group Policies in Windows 2000 domain controller

  - by Chris

  In Server 2000 active directory, I have 5 groups of users and every user has different policies. The problem is that a different desktop loads for only one specific user no matter what changes I make in administrative templates. If I copy this user profile and paste it into another group with a different name, windows workaround loads as it should, but some policies are not applied. Does anybody know a way to solve this problem instead of creating a new group and user from scratch?

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• Group Policy is not being applied from Server 2003 to win7 client

  - by John Hoge

  Hi, I'm experimenting with Group Policy settings. My DC is running Server 2003, and the client I am using for this test is running Win7. I've restarted the client a few times, and tried running gpupdate/force for good measure. This machine is in it's own OU with a group policy applied to change one setting, Computer Configuration/Administrative Templates/Network/Offline Files. When I run MMC and look at Local Computer Policy on the client this setting shows up as "not configured". Thanks, John

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• Backup & Restore Group Policy of Workgroup Window XP

  - by Param

  I have around 20 system in Workgroup, I have configured a Group policy along with Administrative Template on one system. Do you know, how to transfer this Group Policy along with Administrative template to other system, without re-configuring it manually on all other systems. I have exported the Security setting in .inf file ( as Security Template ), but how to export setting related to Administrative template?

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• C# String.format extension method

  - by Paul Roe

  With the addtion of Extension methods to C# we've seen a lot of them crop up in our group. One debate revolves around extension methods like this one: public static class StringExt { /// <summary> /// Shortcut for string.Format. /// </summary> /// <param name="str"></param> /// <param name="args"></param> /// <returns></returns> public static string Format(this string str, params object[] args) { if (str == null) return null; return string.Format(str, args); } } Does this extension method break any programming best practices that you can name? Would you use it anyway, if not why? If I renamed the function to "F" but left the xml comments would that be epic fail or just a wonderful savings of keystrokes?

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• Static method , Abstract method , Interface method comparision ?

  - by programmerist

  When i choose these methods? i can not decide which one i must prefer or when will i use one of them?which one give best performance? First Type Usage public abstract class _AccessorForSQL { public virtual bool Save(string sp, ListDictionary ld, CommandType cmdType); public virtual bool Update(); public virtual bool Delete(); public virtual DataSet Select(); } class GenAccessor : _AccessorForSQL { DataSet ds; DataTable dt; public override bool Save(string sp, ListDictionary ld, CommandType cmdType) { } public override bool Update() { return true; } public override bool Delete() { return true; } public override DataSet Select() { DataSet dst = new DataSet(); return dst; } Second Type Usage Also i can write it below codes: public class GenAccessor { public Static bool Save() { } public Static bool Update() { } public Static bool Delete() { } } Third Type Usage Also i can write it below codes: public interface IAccessorForSQL { bool Delete(); bool Save(string sp, ListDictionary ld, CommandType cmdType); DataSet Select(); bool Update(); } public class _AccessorForSQL : IAccessorForSQL { private DataSet ds; private DataTable dt; public virtual bool Save(string sp, ListDictionary ld, CommandType cmdType) { } } } I can use first one below usage: GenAccessor gen = New GenAccessor(); gen.Save(); I can use second one below usage: GenAccessor.Save(); Which one do you prefer? When will i use them? which time i need override method ? which time i need static method?

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• Group Policy for DNS Server Addresses

  - by John

  This question deals strictly with the methodology of using Active Directory to publish DNS settings and controlling the DNS server address order to domain attached clients. This is not asking about if this is the right function, role, or best use of group policy; but rather, how to make it work. I would like to be able to publish in group policy DNS addresses and possibly control the order in which the client consumes the addresses. I have tried following the information from this site without success. I set the following setting within group policy, but the client never shows the settings within the TCP/IP properties. Computer Configuration/Administrative Templates/Network/DNS Client/DNS Servers I did list them as a single space separated list. For example, the following: 192.168.0.1 192.168.10.3 192.168.34.2 192.168.2.67 192.168.56.99 192.168.99.23 This would be for Windows 7, Windows Server 2003, and Windows Server 2008 clients. I am not sure what I am doing wrong or how to get this to work. Am I missing a setting? Do I need to set something differently?

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• Problems installing Windows service via Group Policy in a domain

  - by CraneStyle

  I'm reasonably new to Group Policy administration and I'm trying to deploy an MSI installer via Active Directory to install a service. In reality, I'm a software developer trying to test how my service will be installed in a domain environment. My test environment: Server 2003 Domain Controller About 10 machines (between XP SP3, and server 2008) all joined to my domain. No real other setup, or active directory configuration has been done apart from things like getting DNS right. I suspect that I may be missing a step in Group Policy that says I need to grant an explicit permission somewhere, but I have no idea where that might be or what it will say. What I've done: I followed the documentation from Microsoft in How to Deploy Software via Group Policy, so I believe all those steps are correct (I used the UNC path, verified NTFS permissions, I have verified the computers and users are members of groups that are assigned to receive the policy etc). If I deploy the software via the Computer Configuration, when I reboot the target machine I get the following: When the computer starts up it logs Event ID 108, and says "Failed to apply changes to software installation settings. Software changes could not be applied. A previous log entry with details should exist. The error was: An operations error occurred." There are no previous log entries to check, which is weird because if it ever actually tried to invoke the windows installer it should log any sort of failure of my application's installer. If I open a command prompt and manually run: msiexec /qb /i \\[host]\[share]\installer.msi It installs the service just fine. If I deploy the software via the User Configuration, when I log that user in the Event Log says that software changes were applied successfully, but my service isn't installed. However, when deployed via the User configuration even though it's not installed when I go to Control Panel - Add/Remove Programs and click on Add New Programs my service installer is being advertised and I can install/remove it from there. (this does not happen when it's assigned to computers) Hopefully that wall of text was enough information to get me going, thanks all for the help.

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