|
When I tell a socket to "listen," what IP Address should I tell it to use?
When I use "netstat /a", it shows me the following possible local IP Addresses:
0.0.0.0
127.0.0.1
192.168.0.2 // This is the machine's address on my LAN
Which one should I use in the call to Bind? (It accepts all of them)
The difficult we do right away...
...the impossible takes slightly longer.
|
|
|
|
|
I think I figured it out. I should use IPAddress.Any.
The difficult we do right away...
...the impossible takes slightly longer.
|
|
|
|
|
Always the best choice, unless you have multiple interfaces and you need to bind to an interface that has access to a particular network segment.
|
|
|
|
|
Richard Andrew x64 wrote: 127.0.0.1
I always thought that 127.0.0.1 would be localhost.
|
|
|
|
|
It is.
There's nothing preventing you from running the client and server on the same machine.
If the machine isn't connected to a network, the app still works.
|
|
|
|
|
Any address of the form 127.*.*.* is a loop back address.
|
|
|
|
|
This is the address I would use in your binding instance.
|
|
|
|
|
Richard Andrew x64 wrote: 0.0.0.0
That should basically say - use all network IPs to bind to. Which is only relevant if your computer has two network addresses. Which is more common if you have two network cards but might also be possible in other situations.
Richard Andrew x64 wrote: 127.0.0.1
Any address of the form 127.*.*.* is a loopback address. It will not exit the local machine.
Richard Andrew x64 wrote: 192.168.0.2
This is the address that that allows your computer to be addressed on a network. This is comparable to 0.0.0.0 except that it is specific to one network segment (only relevant if you have more than one.)
It is also a private network address. That in combination with firewalls/routers might or might not mean that using that address (or 0.0.0.0) would mean that your server is available from other locations on the private network. That address would never be visible outside (like the internet) the private network.
Typically for network exposure one should probably use a specific address and not use 0.0.0.0 because if there is more than one network segment then it is unlikely that exposing the server on both is the intent of the additional segments.
Allowing it the network address to be explicitly specified, via a configuration value, is probably a good idea.
|
|
|
|
|
Thanks for this informative post. 
The difficult we do right away...
...the impossible takes slightly longer.
|
|
|
|
|
127.0.0.1 ,this may be true,you can try
|
|
|
|
|
I am new in WCF, I created DataContract, defined Datamembers and using DataContractSerializer for serialization . but getting error
'EndElement' 'ReadRequest' from namespace "is not expected. Expecting element 'Header'.
Please help me to identify the issue.
Thanks in advance !!!
|
|
|
|
|
Sachin Sangal wrote: I am new in WCF
Then I suggest you move your question to the WCF forum.
|
|
|
|
|
Thanks Richard...
I have posted on WCF forum as well...
|
|
|
|
|
Which is called cross posting and is frowned upon!
Never underestimate the power of human stupidity
RAH
|
|
|
|
|
I always make mistakes in making our company's code project .who can help me ?
Zincsulfates[] from Rech Chemmical
|
|
|
|
|
Why are you trying to hyjack someone elses thread??
Post this as a new thread and rewrite the "question" you asked. I say that because you didn't ask a question at all nor did you detail what kind of problem you're having, other than you always screw up code.
|
|
|
|
|
Hi guys, I've just encountered a strange bug (I think?) in ArrayList.Clone()
Here's my code :
public ShipChromosome(ArrayList deckLength, ArrayList shipList, ArrayList allShipList)
{
deckList = deckLength;
shipsInDeck = (ArrayList)shipList.Clone();
allShips = (ArrayList)allShipList.Clone();
}
#region IChromosome Members
public IChromosome Clone()
{
return new ShipChromosome(deckList, shipsInDeck, allShips);
}
Okay, Here's the exception :
System.ArgumentException was unhandled - Destination array was not long enough. Check destIndex and length, and the array's lower bounds.
Some detail about parameters:
deckList = ArrayList containing many int(s)
shipsInDeck = ArrayList containing (deckList.Count) ArrayList(s) which hold many ShipObject
allShips = ArrayList containing all ShipObject(s) in ShipsInDeck (Hey, I'm lazy!!  )
Any idea guys?
Oxfords English < Official CCC Players Dictionary
Excuse me for my improper grammar and typos.
It's because English is my primary language, not my first language.
My first languages are C# and Java.
VB, ASP, JS, PHP and SQL are my second language.
Indonesian came as my third language.
My fourth language? I'm still creating it, I'll let you know when it's done! 
|
|
|
|
|
We need more information and context.
What are the counts/lengths of those collections?
Does it go wrong the very first time, or just after a lot of similar operations?
Are some of those collections growing all the time?
What is this app about?
|
|
|
|
|
Luc Pattyn wrote: What are the counts/lengths of those collections?
The first and second ArrayList always have 4 Items (setting)
The third is changing every time.
Luc Pattyn wrote: Does it go wrong the very first time, or just after a lot of similar operations?
After a lot of similar operations.
Luc Pattyn wrote: Are some of those collections growing all the time?
Answered.
Luc Pattyn wrote: What is this app about?
Ship park scheduling(?), There's many decks(4) and many ships (hundred) and it must select the best combination for the ship (Every ship has different length and park cost)
Oxfords English < Official CCC Players Dictionary
Excuse me for my improper grammar and typos.
It's because English is my primary language, not my first language.
My first languages are C# and Java.
VB, ASP, JS, PHP and SQL are my second language.
Indonesian came as my third language.
My fourth language? I'm still creating it, I'll let you know when it's done!
|
|
|
|
|
Firo Atrum Ventus wrote: Ship park scheduling
Amazing, I looked at something like this in the 90s, it required mapping the docks and defining segments, each ship would take up #n segments based on length, each 3rd (or random) segment had a services outlet and we had to get as many service outlets in use as possible.
I'm astonished this has not already been done we could not get funding for the project at the time.
Never underestimate the power of human stupidity
RAH
|
|
|
|
|
Half answered. How many elements are in the third collection, the one that grows; initially, halfway, and when it fails?
and how often are you doing all this cloning? and what happens to all those clones, are you storing them in yet another collection?
insufficient information, best guess: LOH fragmentation. Never seen that exact error message though.
|
|
|
|
|
Luc Pattyn wrote: How many elements are in the third collection, the one that grows; initially, halfway, and when it fails?
Let me rephrase my previous remark, The length is not growing, it depends on the value of ShipInDecks (I use this ArrayList just to make sure the new ship hasn't been added into ShipInDeck).
Luc Pattyn wrote: and how often are you doing all this cloning?
Cloning happens in crossover process (yes, this is Genetic Algorithm):
1. Clone 2 ShipChromosome (the class with mentioned code). //Where the error occured.
2. Do crossover from clones result.
Luc Pattyn wrote: what happens to all those clones, are you storing them in yet another collection?
Which clones?
The class? public IChromosome Clone() create new object of ShipChromosome which should have the same value, hence the use of clone in the constructor.
The array? I just cloned them from another instance of the class so that I can manage it freely.
Luc Pattyn wrote: LOH fragmentation
Looking into it.
This error doesn't show up much (okay, only once), so I'm just doing this because I'm curious(ie. too many free time).
Oxfords English < Official CCC Players Dictionary
Excuse me for my improper grammar and typos.
It's because English is my primary language, not my first language.
My first languages are C# and Java.
VB, ASP, JS, PHP and SQL are my second language.
Indonesian came as my third language.
My fourth language? I'm still creating it, I'll let you know when it's done!
|
|
|
|
|
As an aside, you should be using List<int>, List<List<ShipObject>> and List<ShipObject> here. Generics are good and make your life better. Though I wouldn't be sure that would solve this issue.
Are you updating that collection from another thread? If the size is different when it allocates the clone to when it actually does the copy, something like that might happen. I'm not sure Clone is a thread safe operation.
|
|
|
|
|
BobJanova wrote: As an aside, you should be using List<int>, List<List<ShipObject>> and List<ShipObject> here. <layer>Generics are good and make your life better.
Sure, but I'm currently in lazy mode now. I don't want to write all that comment for those new developers.
BobJanova wrote: Are you updating that collection from another thread? If the size is different when it allocates the clone to when it actually does the copy, something like that might happen.
Nope, this application is a prototype, everything runs in the main thread.
Oxfords English < Official CCC Players Dictionary
Excuse me for my improper grammar and typos.
It's because English is my primary language, not my first language.
My first languages are C# and Java.
VB, ASP, JS, PHP and SQL are my second language.
Indonesian came as my third language.
My fourth language? I'm still creating it, I'll let you know when it's done!
|
|
|
|
|
The generic type declaration is the comment, it is much clearer that you must put ints in there than if it's declared ArrayList and you can put anything in, but something will crash if you put the wrong type in. Honestly, in .Net 2 and up, you should only use the non-generic collections if you actually don't know what type you want to put in there.
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
