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 General :: Programming
This category is about general programming issues. Documents dealing with issues specific to a certain programming language or development environment are in the categories below.

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Client / Server programming - generic steps to start a server or a client

Client/server network programming requires a server running on one machine to listen and answer requests and one or more clients running either on the same machine or different machines connected to the server through a network.

Independent from your operating system and programming language, you'll have to follow the following basic steps to create and run a server (the function refers to the unix naming convention; almost all languages have interfaces to them):

  1. Create a socket with socket
  2. Bind the socket to a port address with bind
  3. Listen to the socket at the port address with listen
  4. Accept client connections with accept

Creating a client involves less steps:
  1. Create a socket with socket
  2. Connect the socket to the remote machine with connect


Most modern environments offer classes, components, beans, Active-X controls.. libraries.. to abstract this process but it's good to know the basic steps that happen behind the scenes in case you get an error message 'Cannot bind socket'.. 'port already in use'.


Most recent comments
2010-03-20 11:01:19:
by [hidden]
in Dating Scams
on Dating scammer Kim/ Brittany from Lagos, Nigeria:
I received the email about Jessica Awa, and I replied to her and she said something about the money that she wanted me to help her transfer so she can come to my country to study.
I dunno who she ... read more
2010-03-20 10:32:30:
by anonymous
in Dating Scams
on Is this Russian girl scamming me? How to recognize scammers:
One last photo of Olga Malinkina of Cheboksary. This one is different from the others so now she has 3 different looks. Please advise if you knoiw this girl. She has sent me a letter asking for mone ... read more
2010-03-20 10:22:23:
by anonymous
in Dating Scams
on Dating scammer Ekaterina:
I got these same messages!!! I actually can't believe it. I wonder how many more people have been sent the same thing? I traced the ip address and apparently the person resides somewhere in the US.
2010-03-20 09:48:48:
by ww
in Dating Scams
on Dating scammer Sarah Sarpong:
@Todd aka WTF
2010-03-20 08:53:09:
by mcmillen45
in Dating Scams
on Dating scammer Osai Williams from Ghana:
Here is a new one from this scammer claiming to be Bojisah Hamis Taufic. It is a passport with Dawson Millers face overtop someone elses picture. Very easy to see the addition
2010-03-20 08:46:36:
by [hidden]
in Dating Scams
on Dating scammer Tatyana Zaiceva:
Waarschijnlijk een mooie afsluiter ... read more
2010-03-20 07:55:55:
by anonymous
in Dating Scams
on Dating scammer Sandra Da_Rocha from Accra/Ghana:
tenderhearted500@yahoo.com she go now with this name boys watch out boyes she isd in nigeria she say for here sick mother boyhahahahahaha haahahhahahahhahahahahah she do this foto shoot in nigera she ... read more
2010-03-20 06:58:18:
by auschook
in Male Dating Scammers
on Dating scammer Michael brown :
ALL THESE SCAMMERS HAVE ONE THING IN COMMON .....THEY HAVE BLOODY TERRIBLE GRAMMAR
2010-03-20 06:12:29:
by anonymous
in Male Dating Scammers
on Dating scammer Brian Cole:
Courtney Roy from 65 Byslips Road South Bedforshire or Bedfordshire Dunstable UK from sight MATE1

Be aware she is a scammer and uses Brian Jones as the Customs agent to call and demand the su ... read more
2010-03-20 04:57:45:
by auschook
in Male Dating Scammers
on Dating scammer Kenny Williams:
This is a pic he uses of his 13 year old son Derrick