programming the network with perl - wiley 2002

... combination of the letters A-Z, a-z, the digits 0-9 and the underscore charac- ter), then precede the name with one of Perl s special variable naming characters, depending on what the variable ... arrays, for that matter) are very useful ‘right out-of -the- box’. For the vast majority of the programs in Programming the Network with Perl, these inbuilt variable cont...

Ngày tải lên: 25/03/2014, 10:29

... and Lianna Wlasiuk. Graphics Programming with Perl xxi about the cover illustration The figure on the cover of Graphics Programming with Perl is from a Spanish com- pendium of regional dress ... to one or the other. We at Manning celebrate the inventiveness, the initiative and the fun of the com- puter business with book covers based on the rich diversity of...

Ngày tải lên: 25/03/2014, 10:25

... local-ip global-ip • Clears an extended dynamic translation entry Router#clear ip nat translation protocol inside global-ip global-port local-ip local-port [outside local-ip local-port global-ip ... local-ip global-ip • Marks the interface as connected to the inside Router(config-if)#ip nat inside • Marks the interface as connected to the outside Router(config-if)#ip nat outsi...

Ngày tải lên: 06/03/2014, 15:20

... that the server sits and waits for connections over the network to the port in question. When a client connects to that port, the server accepts the connection and then converses with the client ... full response for the given URL, including the response code, headers, and entity-body. If the user only wants the response code, he can use the -r option. Similarly,...

Ngày tải lên: 20/10/2013, 10:15

... anymore in the context of this program. Also, instead of parsing the -r, -H, and -d command-line arguments, we look for -i for displaying image links only, and -l for displaying only hyperlinks. ... open_TCP('F', $the_ url[1], $the_ url[2])) { print "Error connecting to web server: $the_ url[1]\n"; exit (-1 ); } # request the path of the document...

Ngày tải lên: 20/10/2013, 10:15

... get the entity-body of the request, call the content( ) method without any parameters, and it will return the object's current entity- body. To define the entity-body, invoke content( ) with ... directly reflect the actions of the user. For example, in a user agent application, when a user clicks on a hyperlink, he expects to see the data associated with the hype...

Ngày tải lên: 24/10/2013, 08:15

... object. The default port is based on the scheme used. Even if the port for the URL is explicitly changed by the user with the port( ) method, the default port is always the same. $url->epath( ... explanation of the error. $r->message([$message]) Not to be confused with the entity-body of the response. This is the human-readable text that a user would usu...

Ngày tải lên: 24/10/2013, 08:15

... ;-_ =_Scrolldown to the Underground_= _-; Network Programming http://kickme.to/tiger/ Slide 9 The socket model (cont.) The client Creates generic socket with socket Binds to an address with ... will read the next datagram. If the length of the datagram is longer than $length, then the rest of the datagram will be discarded. The return value from recv is the pac...

Ngày tải lên: 21/12/2013, 04:19

... example, the browser is given the following URL: http://hypothetical.ora.com/ The browser interprets the URL as follows: http:// In the first part of the URL, you told the browser to use HTTP, the ... Transfer Protocol. hypothetical.ora.com In the next part, you told the browser to contact a computer over the network with the hostname of hypothetical.ora.com....

Ngày tải lên: 26/01/2014, 07:20

... is using. The status code indicates the result of the request, and the reason phrase is a human-readable description of the status-code. The response header tells the client about the configuration ... server response In the server response, the general header and entity headers are the same as those used in the client request. The entity-body is like the o...

Ngày tải lên: 26/01/2014, 07:20