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  • List of registered domain names

    - by Eric Chang
    Where can I find a list of domain names that I can download in a text file? I looked around and I found many sites with lists of expired domain names or domain names that will expire soon, but that's not what I need, I need a list of CURRENTLY REGISTERED domain names. The closest I found was this site (hxxp://www.list-of-domains.org/), but what I'm looking for ideally is just a plain list of registered domains and not some web links split across many pages full with ads and no text file. I know it's possible, after all how do these sites get the list of domains that they use? Where can I find such a list?

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  • Passing List (Of ChildClass) as parameter to method expecting List (Of ParentClass)?

    - by Nicholas
    Hi, I have implemented inheritance for two parent classes called Table and Field. Each parent class has several child classes. In the Table parent class, I created a method that expects parameter List(Of Field). I get an error when trying to pass in parameter List(Of ChildField) to the method that expects a parameter of List(Of Field). The error message is as below: Value of type 'System.Collections.Generic.List(Of com.hlb.icisbatch.data.ChildField)' cannot be converted to 'System.Collections.Generic.List(Of com.hlb.icisbatch.data.Field)' My question, is it possible to pass in list of child class as parameter? If it is not a list then it works fine. But somehow it is not possible with lists? Below is sample class structure: Table Field | | ChildTable ChildField I have a method in the parent class: Public Class Table Public Sub New() End Sub Public Overridable Sub setFields(ByVal list As List(Of Field) 'Do work here' End Sub End Class and method in child class: Public Class ChildTable Public Sub New(ByVal list As List(Of ChildField) setFields(ChildField) End Sub End Class

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  • Global list in C/gtk+

    - by sterh
    Hello, I need in global list in my gtk+ application, i use for it GList: For example: I have structure: typedef struct _data { Glist list; }Data; I want to use one copy of the list in the whole program: I have a function bulid my list: gboolean build_list() { Data->list = g_list_append(mw->a, "First "); Data->list = g_list_append(mw->a, "Second "); Data->list = g_list_append(mw->a, "Third "); g_list_foreach(Data->list, (GFunc)printf, NULL); } After calling this function to display all items in the list. zbut when i try to make it in another function - for example: void foreach() { g_list_foreach(Data->list, (GFunc)printf, NULL); } I see error in gdb: *Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0xb7335700 (LWP 5364)] 0xb765a7d7 in strchrnul () from /lib/i686/cmov/libc.so.6 * How can i create global list in my application? Thank you.

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  • Designing a user-defined list to be stored in a relational database - Should I include user index?

    - by Zaemz
    By index, I mean, as the user creates the list, each item receives an integer index for its place in that particular list. Since there will be a table of ListItems, I'd prefer to avoid using the name "Index" for the field. Then I was thinking - should I even include the list index in the database? I figured I would because the list would be created in the same fashion every time, then. Or I could order the list for the user based on its actual primary key, since the list items are created in succession anyway... What should I do?

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  • Adding items to the List at creation time in VB.Net

    - by Shaddix
    In c# I can initialize a List at creation time like var list = new List<String>() {"string1", "string2"}; is there a similar thing in VB.Net? Currently I can do it like Dim list As New List(Of String) list.Add("string1") list.Add("string2") list.Add("string3") but I want to avoid boring .Add lines

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  • Visual Studio C++ list iterator not decementable

    - by user69514
    I keep getting an error on visual studio that says list iterator not decrementable: line 256 My program works fine on Linux, but visual studio compiler throws this error. Dammit this is why I hate windows. Why can't the world run on Linux? Anyway, do you see what my problem is? #include <iostream> #include <fstream> #include <sstream> #include <list> using namespace std; int main(){ /** create the list **/ list<int> l; /** create input stream to read file **/ ifstream inputstream("numbers.txt"); /** read the numbers and add them to list **/ if( inputstream.is_open() ){ string line; istringstream instream; while( getline(inputstream, line) ){ instream.clear(); instream.str(line); /** get he five int's **/ int one, two, three, four, five; instream >> one >> two >> three >> four >> five; /** add them to the list **/ l.push_back(one); l.push_back(two); l.push_back(three); l.push_back(four); l.push_back(five); }//end while loop }//end if /** close the stream **/ inputstream.close(); /** display the list **/ cout << "List Read:" << endl; list<int>::iterator i; for( i=l.begin(); i != l.end(); ++i){ cout << *i << " "; } cout << endl << endl; /** now sort the list **/ l.sort(); /** display the list **/ cout << "Sorted List (head to tail):" << endl; for( i=l.begin(); i != l.end(); ++i){ cout << *i << " "; } cout << endl; list<int> lReversed; for(i=l.begin(); i != l.end(); ++i){ lReversed.push_front(*i); } cout << "Sorted List (tail to head):" << endl; for(i=lReversed.begin(); i!=lReversed.end(); ++i){ cout << *i << " "; } cout << endl << endl; /** remove first biggest element and display **/ l.pop_back(); cout << "List after removing first biggest element:" << endl; cout << "Sorted List (head to tail):" << endl; for( i=l.begin(); i != l.end(); ++i){ cout << *i << " "; } cout << endl; cout << "Sorted List (tail to head):" << endl; lReversed.pop_front(); for(i=lReversed.begin(); i!=lReversed.end(); ++i){ cout << *i << " "; } cout << endl << endl; /** remove second biggest element and display **/ l.pop_back(); cout << "List after removing second biggest element:" << endl; cout << "Sorted List (head to tail):" << endl; for( i=l.begin(); i != l.end(); ++i){ cout << *i << " "; } cout << endl; lReversed.pop_front(); cout << "Sorted List (tail to head):" << endl; for(i=lReversed.begin(); i!=lReversed.end(); ++i){ cout << *i << " "; } cout << endl << endl; /** remove third biggest element and display **/ l.pop_back(); cout << "List after removing third biggest element:" << endl; cout << "Sorted List (head to tail):" << endl; for( i=l.begin(); i != l.end(); ++i){ cout << *i << " "; } cout << endl; cout << "Sorted List (tail to head):" << endl; lReversed.pop_front(); for(i=lReversed.begin(); i!=lReversed.end(); ++i){ cout << *i << " "; } cout << endl << endl; /** create frequency table **/ const int biggest = 1000; //create array size of biggest element int arr[biggest]; //set everything to zero for(int j=0; j<biggest+1; j++){ arr[j] = 0; } //now update number of occurences for( i=l.begin(); i != l.end(); i++){ arr[*i]++; } //now print the frequency table. only print where occurences greater than zero cout << "Final list frequency table: " << endl; for(int j=0; j<biggest+1; j++){ if( arr[j] > 0 ){ cout << j << ": " << arr[j] << " occurences" << endl; } } return 0; }//end main

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  • Make a WPF circular progress indicator / loading animation

    how to make a WPF circular progress indicator that resembles Silverlights loading animation  read moreBy Michael DetrasDid you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • How to get around the Circular Reference issue with JSON and Entity

    - by DanScan
    I have been experimenting with creating a website that leverages MVC with JSON for my presentation layer and Entity framework for data model/database. My Issue comes into play with serializing my Model objects into JSON. I am using the code first method to create my database. When doing the code first method a one to many relationship (parent/child) requires the child to have a reference back to the parent. (Example code my be a typo but you get the picture) class parent { public List<child> Children{get;set;} public int Id{get;set;} } class child { public int ParentId{get;set;} [ForeignKey("ParentId")] public parent MyParent{get;set;} public string name{get;set;} } When returning a "parent" object via a JsonResult a circular reference error is thrown because "child" has a property of class parent. I have tried the ScriptIgnore attribute but I lose the ability to look at the child objects. I will need to display information in a parent child view at some point. I have tried to make base classes for both parent and child that do not have a circular reference. Unfortunately when I attempt to send the baseParent and baseChild these are read by the JSON Parser as their derived classes (I am pretty sure this concept is escaping me). Base.baseParent basep = (Base.baseParent)parent; return Json(basep, JsonRequestBehavior.AllowGet); The one solution I have come up with is to create "View" Models. I create simple versions of the database models that do not include the reference to the parent class. These view models each have method to return the Database Version and a constructor that takes the database model as a parameter (viewmodel.name = databasemodel.name). This method seems forced although it works. NOTE:I am posting here because I think this is more discussion worthy. I could leverage a different design pattern to over come this issue or it could be as simple as using a different attribute on my model. In my searching I have not seen a good method to overcome this problem. My end goal would be to have a nice MVC application that heavily leverages JSON for communicating with the server and displaying data. While maintaining a consistant model across layers (or as best as I can come up with).

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  • Code Design question, circular reference across classes?

    - by dsollen
    I have no code here, as this is more of a design question (I assume this is still the best place to ask it). I have a very simple server in java which stores a mapping between certain values and UUID which are to be used by many systems across multiple platforms. It accepts a connection from a client and creates a clientSocket which stores the socket and all the other relevant data unique to that connection. Each clientSocket will run in their own thread and will block on the socket waiting for a read. I expect very little strain on this system, it will rarely get called, but when it does get a call it will need to respond quickly and due to the risk of it having a peak time with multiple calls coming in at once threaded is still better. Each thread has a reference to a Mapper class which stores the mapping of UUID which it's reporting to others (with proper synchronization of course). This all works until I have to add a new UUID to the list. When this happens I want to report to all clients that care about that particular UUID that a new one was added. I can't multicast (limitation of the system I'm running on) so I'm having each socket send the message to the client through the established socket. However, since each thread only knows about the socket it's waiting on I didn't have a clear method of looking up every thread/socket that cares about the data to inform them of the new UUID. Polling is out mostly because it seems a little too convoluted to try to maintain a list of newly added UUID. My solution as of now is to have the 'parent' class which creates the mapper class and spawns all the threads pass itself as an argument to the mapper. Then when the mapper creates a new UUID it can make a call to the parent class telling it to send out updates to all the other sockets that care about the change. I'm concerned that this may be a bad design due to the use of a circular reference; parent has a reference to mapper (to pass it to new ClientSocket threads) and mapper points to parent. It doesn't really feel like a bad design to me but I wanted to check since circular references are suppose to be bad. Note: I realize this means that the thread associated with whatever socket originally received the request that spawned the creation of a UUID is going to pay the 'cost' of outputting to all the other clients that care about the new UUID. I don't care about this; as I said I suspect the client to receive only intermittent messages. It's unlikely for one socket to receive multiple messages at one time, and there won't be that many sockets so it shouldn't take too long to send messages to each of them. Perhaps later I'll fix the fact that I'm saddling higher work load on whatever unfortunate thread gets the first request; but for now I think it's fine.

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  • Circular class dependency

    - by shad0w
    Is it bad design to have 2 classes which need each other? I'm writing a small game in which I have a GameEngine class which has got a few GameState objects. To access several rendering methods, these GameState objects also need to know the GameEngine class - so it's a circular dependency. Would you call this bad design? I am just asking, because I am not quite sure and at this time I am still able to refactor these things.

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  • Subset and lagging list data structure R

    - by user1234440
    I have a list that is indexed like the following: >list.stuff [[1]] [[1]]$vector ... [[1]]$matrix .... [[1]]$vector [[2]] null [[3]] [[3]]$vector ... [[3]]$matrix .... [[3]]$vector . . . Each segment in the list is indexed according to another vector of indexes: >index.list 1, 3, 5, 10, 15 In list.stuff, only at each of the indexes 1,3,5,10,15 will there be 2 vectors and one matrix; everything else will be null like [[2]]. What I want to do is to lag like the lag.xts function so that whatever is stored in [[1]] will be pushed to [[3]] and the last one drops off. This also requires subsetting the list, if its possible. I was wondering if there exists some functions that handle list manipulation. My thinking is that for xts, a time series can be extracted based on an index you supply: xts.object[index,] #returns the rows 1,3,5,10,15 From here I can lag it with: lag.xts(xts.object[index,]) Any help would be appreciated thanks: EDIT: Here is a reproducible example: list.stuff<-list() vec<-c(1,2,3,4,5,6,7,8,9) vec2<-c(1,2,3,4,5,6,7,8,9) mat<-matrix(c(1,2,3,4,5,6,7,8),4,2) list.vec.mat<-list(vec=vec,mat=mat,vec2=vec2) ind<-c(2,4,6,8,10) for(i in ind){ list.stuff[[i]]<-list.vec.mat }

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  • Problems with Update Manager

    - by user65965
    Whenever I try to update with update manager I get the following errors: W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/precise/Release Unable to find expected entry 'commercial/source/Sources' in Release file (Wrong sources.list entry or malformed file) W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/precise-updates/Release Unable to find expected entry 'commercial/source/Sources' in Release file (Wrong sources.list entry or malformed file) W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/precise-backports/Release Unable to find expected entry 'commercial/source/Sources' in Release file (Wrong sources.list entry or malformed file) W:Failed to fetch http://archive.ubuntu.com/ubuntu/dists/precise-security/Release Unable to find expected entry 'commercial/source/Sources' in Release file (Wrong sources.list entry or malformed file) W:Failed to fetch http://ppa.launchpad.net/iefremov/ppa/ubuntu/dists/precise/main/source/Sources 404 Not Found W:Failed to fetch http://ppa.launchpad.net/iefremov/ppa/ubuntu/dists/precise/main/binary-amd64/Packages 404 Not Found W:Failed to fetch http://ppa.launchpad.net/iefremov/ppa/ubuntu/dists/precise/main/binary-i386/Packages 404 Not Found E:Some index files failed to download. They have been ignored, or old ones used instead. Any help would be much appreciated, thank you. Thank you very much Eliah. I'm still pretty new to Ubuntu. Here's the output I got from the terminal: No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 12.04 LTS Release: 12.04 Codename: precise # See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to # newer versions of the distribution. deb http://archive.ubuntu.com/ubuntu precise main restricted commercial deb-src http://archive.ubuntu.com/ubuntu precise restricted main commercial multiverse universe #Added by software-properties ## Major bug fix updates produced after the final release of the ## distribution. deb http://archive.ubuntu.com/ubuntu precise-updates main restricted commercial deb-src http://archive.ubuntu.com/ubuntu precise-updates restricted main commercial multiverse universe #Added by software-properties ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team. Also, please note that software in universe WILL NOT receive any ## review or updates from the Ubuntu security team. deb http://archive.ubuntu.com/ubuntu precise universe deb http://archive.ubuntu.com/ubuntu precise-updates universe ## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu ## team, and may not be under a free licence. Please satisfy yourself as to ## your rights to use the software. Also, please note that software in ## multiverse WILL NOT receive any review or updates from the Ubuntu ## security team. deb http://archive.ubuntu.com/ubuntu precise multiverse deb http://archive.ubuntu.com/ubuntu precise-updates multiverse ## N.B. software from this repository may not have been tested as ## extensively as that contained in the main release, although it includes ## newer versions of some applications which may provide useful features. ## Also, please note that software in backports WILL NOT receive any review ## or updates from the Ubuntu security team. deb http://archive.ubuntu.com/ubuntu precise-backports main restricted universe multiverse commercial deb-src http://archive.ubuntu.com/ubuntu precise-backports main restricted universe multiverse commercial #Added by software-properties deb http://archive.ubuntu.com/ubuntu precise-security main restricted commercial deb-src http://archive.ubuntu.com/ubuntu precise-security restricted main commercial multiverse universe #Added by software-properties deb http://archive.ubuntu.com/ubuntu precise-security universe deb http://archive.ubuntu.com/ubuntu precise-security multiverse ## Uncomment the following two lines to add software from Canonical's ## 'partner' repository. ## This software is not part of Ubuntu, but is offered by Canonical and the ## respective vendors as a service to Ubuntu users. deb http://archive.canonical.com/ubuntu oneiric partner deb-src http://archive.canonical.com/ubuntu precise partner ## This software is not part of Ubuntu, but is offered by third-party ## developers who want to ship their latest software. deb http://extras.ubuntu.com/ubuntu precise main deb-src http://extras.ubuntu.com/ubuntu precise main ## This is a 3rd party script to install and update Oracle Java deb http://www.duinsoft.nl/pkg debs all ## Sun-Java6-JRE deb http://security.ubuntu.com/ubuntu hardy-security main multiverse ** /etc/apt/sources.list.d/askubuntu-tools-ppa-precise.list: deb http://ppa.launchpad.net/askubuntu-tools/ppa/ubuntu precise main deb-src http://ppa.launchpad.net/askubuntu-tools/ppa/ubuntu precise main ** /etc/apt/sources.list.d/askubuntu-tools-ppa-precise.list.save: deb http://ppa.launchpad.net/askubuntu-tools/ppa/ubuntu precise main deb-src http://ppa.launchpad.net/askubuntu-tools/ppa/ubuntu precise main ** /etc/apt/sources.list.d/effie-jayx-turpial-oneiric.list: deb http://ppa.launchpad.net/effie-jayx/turpial/ubuntu precise main # disabled on upgrade to precise deb-src http://ppa.launchpad.net/effie-jayx/turpial/ubuntu precise main # disabled on upgrade to precise ** /etc/apt/sources.list.d/effie-jayx-turpial-oneiric.list.distUpgrade: deb http://ppa.launchpad.net/effie-jayx/turpial/ubuntu oneiric main deb-src http://ppa.launchpad.net/effie-jayx/turpial/ubuntu oneiric main ** /etc/apt/sources.list.d/effie-jayx-turpial-oneiric.list.save: deb http://ppa.launchpad.net/effie-jayx/turpial/ubuntu precise main # disabled on upgrade to precise deb-src http://ppa.launchpad.net/effie-jayx/turpial/ubuntu precise main # disabled on upgrade to precise ** /etc/apt/sources.list.d/getdeb.list: # deb http://archive.getdeb.net/ubuntu oneiric-getdeb apps # disabled on upgrade to precise ** /etc/apt/sources.list.d/getdeb.list.distUpgrade: deb http://archive.getdeb.net/ubuntu oneiric-getdeb apps ** /etc/apt/sources.list.d/getdeb.list.save: # deb http://archive.getdeb.net/ubuntu oneiric-getdeb apps # disabled on upgrade to precise ** /etc/apt/sources.list.d/hotot-team-ppa-oneiric.list: deb http://ppa.launchpad.net/hotot-team/ppa/ubuntu precise main # disabled on upgrade to precise deb-src http://ppa.launchpad.net/hotot-team/ppa/ubuntu precise main # disabled on upgrade to precise ** /etc/apt/sources.list.d/hotot-team-ppa-oneiric.list.distUpgrade: deb http://ppa.launchpad.net/hotot-team/ppa/ubuntu oneiric main deb-src http://ppa.launchpad.net/hotot-team/ppa/ubuntu oneiric main ** /etc/apt/sources.list.d/hotot-team-ppa-oneiric.list.save: deb http://ppa.launchpad.net/hotot-team/ppa/ubuntu precise main # disabled on upgrade to precise deb-src http://ppa.launchpad.net/hotot-team/ppa/ubuntu precise main # disabled on upgrade to precise ** /etc/apt/sources.list.d/iefremov-ppa-precise.list: deb http://ppa.launchpad.net/iefremov/ppa/ubuntu precise main deb-src http://ppa.launchpad.net/iefremov/ppa/ubuntu precise main ** /etc/apt/sources.list.d/iefremov-ppa-precise.list.save: deb http://ppa.launchpad.net/iefremov/ppa/ubuntu precise main deb-src http://ppa.launchpad.net/iefremov/ppa/ubuntu precise main ** /etc/apt/sources.list.d/jockey.list: deb http://www.openprinting.org/download/printdriver/debian/ lsb3.2 main-nonfree # disabled on upgrade to precise ** /etc/apt/sources.list.d/jockey.list.distUpgrade: deb http://www.openprinting.org/download/printdriver/debian/ lsb3.2 main-nonfree ** /etc/apt/sources.list.d/jockey.list.save: deb http://www.openprinting.org/download/printdriver/debian/ lsb3.2 main-nonfree # disabled on upgrade to precise ** /etc/apt/sources.list.d/plexydesk-plexydesk-dailybuild-precise.list: deb http://ppa.launchpad.net/plexydesk/plexydesk-dailybuild/ubuntu precise main deb-src http://ppa.launchpad.net/plexydesk/plexydesk-dailybuild/ubuntu precise main ** /etc/apt/sources.list.d/plexydesk-plexydesk-dailybuild-precise.list.save: deb http://ppa.launchpad.net/plexydesk/plexydesk-dailybuild/ubuntu precise main deb-src http://ppa.launchpad.net/plexydesk/plexydesk-dailybuild/ubuntu precise main ** /etc/apt/sources.list.d/precise-partner.list: deb http://archive.canonical.com/ubuntu precise partner #Added by software-center ** /etc/apt/sources.list.d/precise-partner.list.save: deb http://archive.canonical.com/ubuntu precise partner #Added by software-center ** /etc/apt/sources.list.d/private-ppa.launchpad.net_commercial-ppa-uploaders_crossover-pro_ubuntu.list: # deb https://justin-dormandy:[email protected]/commercial-ppa-uploaders/crossover-pro/ubuntu precise main #Added by software-center disabled on upgrade to precise ** /etc/apt/sources.list.d/private-ppa.launchpad.net_commercial-ppa-uploaders_crossover-pro_ubuntu.list.distUpgrade: cat: /etc/apt/sources.list.d/private-ppa.launchpad.net_commercial-ppa-uploaders_crossover-pro_ubuntu.list.distUpgrade: Permission denied ** /etc/apt/sources.list.d/private-ppa.launchpad.net_commercial-ppa-uploaders_crossover-pro_ubuntu.list.save: cat: /etc/apt/sources.list.d/private-ppa.launchpad.net_commercial-ppa-uploaders_crossover-pro_ubuntu.list.save: Permission denied ** /etc/apt/sources.list.d/screenlets-ppa-precise.list: deb http://ppa.launchpad.net/screenlets/ppa/ubuntu precise main deb-src http://ppa.launchpad.net/screenlets/ppa/ubuntu precise main ** /etc/apt/sources.list.d/screenlets-ppa-precise.list.save: deb http://ppa.launchpad.net/screenlets/ppa/ubuntu precise main deb-src http://ppa.launchpad.net/screenlets/ppa/ubuntu precise main ** /etc/apt/sources.list.d/webupd8team-java-precise.list: deb http://ppa.launchpad.net/webupd8team/java/ubuntu precise main deb-src http://ppa.launchpad.net/webupd8team/java/ubuntu precise main ** /etc/apt/sources.list.d/webupd8team-java-precise.list.save: deb http://ppa.launchpad.net/webupd8team/java/ubuntu precise main deb-src http://ppa.launchpad.net/webupd8team/java/ubuntu precise main

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  • Hibernate list operation question

    - by Sumit Kishore
    I'm working on a utility to update a list of entities in a database as a group. The database contains a list of entities. The result of the update is a new list. The API accepts this new list. The update may end up modifying some of the entities in the list, creating new ones and deleting some. So at the entity level, I may have to do any of an insert, delete or update operation. But it's always true that the final list in the database will be the same as the list passed down to the API. Is there in Hibernate a way to treat this operation at the list level, that is, tell Hibernate to persist this list of entities, and let it take care of which need to be created, updated or deleted? There is no entity/table representing this list, btw. Just the entities themselves in a table.

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  • Updating List Elements, Haskell

    - by Tom
    I have homework where I am to update a list using a function that takes two elements and returns a value of part of the first element given in the function. So it's required to update the entire listing by going through each element and update its value by applying the function against all other elements in the list (including itself). So far I've been trying to firstly map the list (so that each element is done the same) and then specifically update each elements value by mapping again just the value of the specified element however in trying to map just the specific value through: the function, the specific element and the entire list I keep getting complaints that I'm inferring the list of values made from the 'map function p@list list' rather than simply giving the value at p@list. Is this the correct method to try to update a list against the entire list itself? EDIT: spelling mistakes and grammar

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  • When do you use a circular slider/knob in a good user interface?

    - by Koning Baard
    As I am familiar with some synthesizers, I often user real life circular sliders (e.g. to control the master volume), also called knobs. Like this one: Sometimes I also find these controls in virtual applications (yes I like extreme minimalism =P): But most of them are irritating, confusing or just wrong, and simple sliders could be used instead, making the UI much better. What are the advantages of circular sliders like the one in the screenshot above? And when do you use them? Thanks

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  • DHCP forwarding behind access list on a Cisco Catalyst

    - by Ásgeir Bjarnason
    I'm having some trouble with forwarding DHCP from a subnet behind an access list on a Cisco Catalyst 4500 switch. I'm hoping somebody can see the mistake I'm making. The subnet is defined like this: (first three octets of IP addresses and vrf name anonymized) interface Vlan40 ip vrf forwarding vrf_name ip address 10.10.10.126 255.255.255.0 secondary ip address 10.10.10.254 255.255.255.0 ip access-group 100 out ip helper-address 10.10.20.36 no ip redirects I tried turning on a VMWare machine on this subnet that was configured to use DHCP, but I never got a DHCP response and the DHCP server didn't receive a request. I tried putting the following in the access-list: access-list 100 permit udp host 10.10.10.254 host 10.10.20.36 eq bootps access-list 100 permit udp host 10.10.10.254 host 10.10.20.36 eq bootpc access-list 100 permit udp host 10.10.20.36 host 10.10.10.254 eq bootps access-list 100 permit udp host 10.10.20.36 host 10.10.10.254 eq bootpc That didn't help. Can anybody see what the problem is? I know that the DHCP server works; our whole network is running off of this DHCP server I also know that the subnet works because we have active servers running on the network The DHCP scope is already defined on the DHCP server The subnet is correctly defined on the VMWare server (already servers running on the subnet on VMWare) Edit 2012-10-19: This is solved! The subnet had formerly been defined as a /25 network, but was then expanded into a /24 network. When the DHCP scope was altered after this change it was done incorrectly; the gateway was moved to .254, the leasable IP range was in the lower half of the /24 subnet but we forgot to change the CIDR prefix from /25 into /24. This happened some 2 years ago, and we didn't need to use DHCP on this server network again until this week. Thank you MDMarra and Jason Seemann for looking at the question and trying to troubleshoot. Now I'm wondering if I should mark Jason's answer as the accepted answer (I am new to the Stack Exchange network, so I don't know the etiquette of what to do if I misstated the question like in this case).

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  • Java: split a List into two sub-Lists?

    - by Chris Conway
    What's the simplest, most standard, and/or most efficient way to split a List into two sub-Lists in Java? It's OK to mutate the original List, so no copying should be necessary. The method signature could be /** Split a list into two sublists. The original list will be modified to * have size i and will contain exactly the same elements at indices 0 * through i-1 as it had originally; the returned list will have size * len-i (where len is the size of the original list before the call) * and will have the same elements at indices 0 through len-(i+1) as * the original list had at indices i through len-1. */ <T> List<T> split(List<T> list, int i); [EDIT] List.subList returns a view on the original list, which becomes invalid if the original is modified. So split can't use subList unless it also dispenses with the original reference (or, as in Marc Novakowski's answer, uses subList but immediately copies the result).

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  • Circular Bullet Spread not Even

    - by SoulBeaver
    I'm creating a bullet shooter much in the style of Touhou. Right now I want to have a very simple circular shot being fired from the enemy. See this picture: As you can see, the spacing is very uneven, which isn't very good if you want to survive. The code I'm using is this: private function shoot() : void { const BULLETS_PER_WAVE : int = 72; var interval : Number = BULLETS_PER_WAVE / 360; for (var i : int = 0; i < BULLETS_PER_WAVE; ++i { var xSpeed : Number = GameConstants.BULLET_NORMAL_SPEED_X * Math.sin(i * interval); var ySpeed : Number = GameConstants.BULLET_NORMAL_SPEED_Y * Math.cos(i * interval); BulletFactory.createNormalBullet(bulletColor_, alice_.center, xSpeed, ySpeed); } canShoot_ = false; cooldownTimer_.start(); } I imagine my mistake is in the sin, cos functions, but I'm not entirely sure what's wrong.

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  • Reverse-engineer SharePoint fields, content types and list instance—Part3

    - by ybbest
    Reverse-engineer SharePoint fields, content types and list instance—Part1 Reverse-engineer SharePoint fields, content types and list instance—Part2 Reverse-engineer SharePoint fields, content types and list instance—Part3 In Part 1 and Part 2 of this series, I demonstrate how to reverse engineer SharePoint fields, content types. In this post I will cover how to include lookup fields in the content type and create list instance using these content types. Firstly, I will cover how to create list instance and bind the custom content type to the custom list. 1. Create a custom list using list Instance item in visual studio and select custom list. 2. In the feature receiver add the Department content type to Department list and remove the item content type. C# AddContentTypeToList(web, “Department”, ” Department”); private void AddContentTypeToList(SPWeb web,string listName, string contentTypeName) { SPList list = web.Lists.TryGetList(listName); list.OnQuickLaunch = true; list.ContentTypesEnabled = true; list.Update(); SPContentType employeeContentType = web.ContentTypes[contentTypeName]; list.ContentTypes.Add(employeeContentType); list.ContentTypes["Item"].Delete(); list.Update(); } Next, I will cover how to create the lookup fields. The difference between creating a normal field and lookup fields is that you need to create the lookup fields after the lists are created. This is because the lookup fields references fields from the foreign list. 1. In your solution, you need to create a feature that deploys the list before deploying the lookup fields. 2. You need to write the following code in the feature receiver to add the lookup columns in the ContentType. C# //add the lookup fields SPFieldLookup departmentField = EnsureLookupField(currentWeb, “YBBESTDepartment”, currentWeb.Lists["DepartmentList"].ID, “Title”); //add to the content types SPContentType employeeContentType = currentWeb.ContentTypes["Employee"]; //Add the lookup fields as SPFieldLink employeeContentType.FieldLinks.Add(new SPFieldLink(departmentField)); employeeContentType.Update(true); private static SPFieldLookup EnsureLookupField(SPWeb currentWeb, String sFieldName, Guid LookupListID, String sLookupField) { //add the lookup fields SPFieldLookup lookupField = null; try { lookupField = currentWeb.Fields[sFieldName] as SPFieldLookup; } catch (Exception e) { } if (lookupField == null) { currentWeb.Fields.AddLookup(sFieldName, LookupListID, true); currentWeb.Update(); lookupField = currentWeb.Fields[sFieldName] as SPFieldLookup; lookupField.LookupField = sLookupField; lookupField.Group = “YBBEST”; lookupField.Required = true; lookupField.Update(); } return lookupField; }

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  • Public property List needs to Concat 2 types with inheritance

    - by Bernard
    I have 2 lists: one of type A and one of type Aa. type Aa is inherited from type A. So: List<A> listA = new List<A>(); List<Aa> listAa = new List<Aa>(); with class Aa : A I have: public property Lists<A> { get { List<A> newList = new List<A>(); //return concat of both lists foreach(List l in listA) { newList.Add(l); } foreach(List l in listAa) { newList.Add(l); } } Can I somehow use Concat instead of the foreach loop? i.e. get { return listA.Concat(listAa); } // this doesn't work And secondly, how do I do the set part of the property? set { //figure out the type of variable value and put into appropriate list? }

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  • Reverse List<Object>

    - by Mercer
    Hello, i have a List List<DataClient> listDataClient; My class DataCLient: Client client; List<String> phoneNumber; i have a second list List<DataPhoneNumber> listPhoneNumber; My class DataPhoneNumber: String phoneNumber; List<Client> client; In my code i put data in my first list but now i want to reverse my list in the second. In the first list i have a Client wiht x NumberPhone now i want to have NumberPhone for x Client

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  • List<T> add method in C#

    - by Nano HE
    Hello. As I know. List Add method works as below. List<string> cities = new List<string>(); cities.Add("New York"); cities.Add("Mumbai"); cities.Add("Berlin"); cities.Add("Istanbul"); If I designed the data structure as this List<object> lstObj = new List<object>(); if (true) // string members { cities.Add("New York"); cities.Add("Istanbul"); } else // List obj members here { List<object> AListObject= new List<object>(); cities.Add(AListObject); // how to handle this? } Does the List Add method works or not if I add different types members in the same function.

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  • List with items returns empty

    - by Power-Mosfet
    I have created a simple List function but if I Loop through the List it's empty. It should not be! All, thank you for the input. problem solved // List function public class process_hook { public static List<string> pro_hook = list_all_processes(); protected static List<string> list_all_processes() { var list = new List<string>(); foreach (Process i in Process.GetProcesses(".")) { try { foreach (ProcessModule pm in i.Modules) { list.Add(pm.FileName); } } catch { } } return list; } } // call private void button1_Click(object sender, EventArgs e) { foreach (String _list in process_hook.pro_hook) { Console.WriteLine(_list); } }

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