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8 - CGI(Common Gateway Interface CGI n ne olduunu anlatmaya...

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CGI (Common Gateway Interface) CGI n ne oldu unu anlatmaya ge meden nce baz kavramlar n a klanmas gerekmektedir. Buna � � �� Web Server ve Client ile ba lamak yerinde olur. Web Server lar (HTTPd Server), Web sayfalar n zerinde � � � bulunduran makinalard r. Bu makinalar genelde kendi zerlerinde bulunan Web sayfalar na eri mek i in 80 numaral portu kullan rlar. Client ise, Web Server lar zerindeki Web sayfalar na eri mek isteyen makinalard r. Client herhangi bir porttan Web Server ile ileti im kurabilir. Stdin standard input un k salt lm d r ve server a s ndan client n server a g nderdi i veriler anlam na gelir. Stdout �� � �� � � � standard output un k salt lm d r ve server n client n g nderdi i verileri i lemesi sonucunda �� � � � � � client a g nderdi i sonu bilgisi anlam na gelir. Yukar daki a klamalardan da anla ld gibi, HTTP protokol , server dan client a ve client tan �� �� ��� server a veri aktar m n destekler. Client n server a veri g nderebilmesi, formlar arac l yla � � � � � ��� olur. Form, client n server a veri ula t rmas n sa lamak amac yla HTML dili kullanarak yaz lm � � � � � � Web sayfalar d r. Kullan c n n (client) form arac l yla server a g nderdi i bilgiyi i leyecek � � � � � � ��� server taraf nda al an bir programa ihtiya vard r. Bu programa gateway program denir. CGI (Common
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