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IP�� ȣ��Ʈ�� IP �ּҸ� �� ȣ��Ʈ�� Ѵ�. �׷�� ȣ��Ʈ�� ٸ� IP �ּҸ� �� Ѵ�. �̸�� ȣ��Ʈ�� Ŭ��̾�Ʈ�� HTTP �� ȣ��Ʈ�� ˷��ֱ� �ٶ��. �̷� �� IP �ּҷ� �� ٸ� ȣ��Ʈ�� ִ�.

�̸�� ȣ��Ʈ�� DNS �� ȣ��Ʈ�� ùٸ� IP �ּҷ� ��ϵ�� ȣ��Ʈ�� ϰ�, �ٸ� ȣ��Ʈ�� ֵ�� ġ �� ϱ⸸ �ϸ�ǹǷ� �� ϴ�. �̸�� ȣ��Ʈ�� IP �ּҰ� �ʿ��. �׷��Ƿ� Ư�� IP�� ȣ��Ʈ�� ٸ� �̸�� ȣ��Ʈ�� ؾ� �Ѵ�. IP�� ȣ��Ʈ�� ؾ�� δ�:

�̸�� ȣ��Ʈ�� ʴ� �� Ŭ��̾�Ʈ�� ִ�. �̸�� ȣ��Ʈ�� Ϸ�� Ŭ��̾�Ʈ�� HTTP Host �� Ѵ�. �̴� HTTP/1.1�� ʼ��̰�, �ֱ� �� HTTP/1.0 ��鵵 Ȯ�� Ѵ�. �� ̸�� ȣ��Ʈ�� ϸ鼭 �� Ŭ��̾�Ʈ�� ؾ� �Ѵٸ� �� ִ� �� .
SSL �� ݻ� SSL ��ȼ�� ̸�� ȣ��Ʈ�� .
� �ü�� Ʈ�� ġ�� ٸ� IP �ּҸ� �� ȣ��Ʈ�� ϴ� ��Ʈ�� 뷮(bandwidth) �� Ѵ�.

��õ� ��	��õ� ��þ�
`core`	`DocumentRoot` `NameVirtualHost` `ServerAlias` `ServerName` `ServerPath` `<VirtualHost>`

�̸�� ȣ��Ʈ�� Ϸ�� IP �ּҸ� (�Ƹ� ��Ʈ��) ��ؾ� �Ѵ�. �̴� NameVirtualHost ��þ�� ϴ�. �Ϲ�� IP �ּҸ� ��Ѵٸ� NameVirtualHost�� ƱԸ�Ʈ�� *�� Ѵ�. �� Ʈ�� (�� , SSL�� ) ��ȹ�̶�� *:80�� ƱԸ�Ʈ�� Ʈ�� ߰��ؾ� �Ѵ�. NameVirtualHost ��þ IP �ּҸ� ��־��ٰ� �� ڵ�� IP �ּҸ� ��ٸ�� ϶�. �ڼ�� ġ�� ּҿ� ��Ʈ ��ϱ�� ϶�. ��, ��⼭ �� IP �ּҴ� �� Ʈ�� ̽��̾�� Ѵ�.

�� ܰ�� Ϸ�� ȣ��Ʈ�� <VirtualHost> �� ̴�. <VirtualHost>> ��þ�� ƱԸ�Ʈ�� NameVirtualHost ��þ�� ƱԸ�Ʈ(�� , IP �ּҳ� �� ּҸ� ��ϴ� *)�� ƾ� �Ѵ�. <VirtualHost>> �� ȿ�� ּ�� ȣ��Ʈ�� ϴ� ServerName ��þ�� ȣ��Ʈ�� Ͻý�� ִ�� ϴ� DocumentRoot ��þ �ʿ��ϴ�.

�� ȣ��Ʈ��

�� ϴ� �� ȣ��Ʈ�� ߰��Ѵٸ� �� ϴ� ȣ��Ʈ�� <VirtualHost> ��ϵ� �߰��ؾ� �Ѵ�. �� Ͽ� ��ϴ� ServerName�� DocumentRoot�� ü ServerName�� DocumentRoot�� ƾ� �Ѵ�. ��Ͽ�� ȣ��Ʈ�� ⺻ ȣ��Ʈ�� ȴ�.

�� www.domain.tld �� ϰ� �־��µ� �� IP �ּҿ� www.otherdomain.tld�� ȣ��Ʈ�� ߰��ϰ� �ʹٰ� ��. apache2.conf�� ߰��ϸ� �ȴ�:

NameVirtualHost *:80 <VirtualHost *:80> ServerName www.domain.tld ServerAlias domain.tld *.domain.tld DocumentRoot /www/domain </VirtualHost> <VirtualHost *:80> ServerName www.otherdomain.tld DocumentRoot /www/otherdomain </VirtualHost>

NameVirtualHost�� <VirtualHost> ��þ� �� * �� IP �ּҸ� �� ִ�. �� , �̷�� IP �ּҿ� �� ̸�� ȣ��Ʈ�� , �ٸ� �ּҿ� IP�� Ȥ�� ̸�� ȣ��Ʈ�� ִ�.

� �� ̸�� ֱ� �ٶ��. �̴� <VirtualHost> �� ȿ� ServerAlias ��þ ��Ͽ� ��ϴ�. �� ù��° <VirtualHost> ��Ͽ�� ServerAlias ��þ ��ϸ� �� ̸�� Ʈ�� ִ�:

ServerAlias domain.tld *.domain.tld

domain.tld ��ο� �ִ� �� ȣ��Ʈ�� û�� www.domain.tld ��ȣ��Ʈ�� Ѵ�. �̸�� ٶ� ��ϵ�ī�� *�� ?�� ִ�. �� ServerName�̳� ServerAlias�� ̸�� ־��ٰ� �� ƴϴ�. �� ̸�� IP �ּҷ� ��ϵ�� DNS �� ˸°� ��ؾ� �Ѵ�.

�� <<VirtualHost>> �ȿ� �ٸ� ��þ�� Ͽ� ��ȣ��Ʈ�� ڼ�� ִ�. ��κ�� þ �� , ��õ� ��ȣ��Ʈ�� Ѵ�. � ��þ ��밡�� ˷�� þ�� Ȯ��϶�. (<<VirtualHost>> �� ƴ�) �ּ���� þ�� ȣ��Ʈ�� þ �� 쿡�� ȴ�.

��û�� NameVirtualHost�� IP �ּ�� ˻��Ѵ�. �׷��ٸ� �� IP �ּҸ� �� <VirtualHost> ��ǵ鿡�� û�� ȣ��Ʈ�� ġ�ϴ� ServerName�̳� ServerAlias�� ã�´�. ã�� Ѵ�. �� ȣ��Ʈ�� ã��ϸ�, IP �ּҿ� �ش��ϴ� ��ȣ��Ʈ�� ù��° ���� Ѵ�.

�� ó�� ȣ��Ʈ�� ⺻ ��ȣ��Ʈ�� ȴ�. IP �ּҰ� NameVirtualHost ��þ �ش��ϸ�, �ּ���� DocumentRoot�� �� �� ʴ´�. Ư�� ȣ��Ʈ�� ش��ʴ� ��û�� Ϸ�� <VirtualHost>�� Ͽ�� ϸ� �ȴ�.

�� ȣȯ

�̹� �� ̸�� ȣ��Ʈ�� ùٷ� ��ϱ�� ʿ�� ʴ� Ŭ��̾�Ʈ�� ִ�. �̷� Ŭ��̾�Ʈ�� ׻� ��û�� IP �ּҿ� �� ù��°�� ȣ��Ʈ (�� ̸�� ȣ��Ʈ)�� Ѵ�.

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��⼭ ��Ǿ�� Ѵ�. ��ó� �̷� �� Ǿ��. �� ̸�� ȣ��Ʈ�� ʿ�� Host �� .

�� ణ ��彺�� ServerPath ��þ�� ذ�� ִ�:

�� :

NameVirtualHost 111.22.33.44 <VirtualHost 111.22.33.44> ServerName www.domain.tld ServerPath /domain DocumentRoot /web/domain </VirtualHost>

�̰� �� ΰ�? "/domain"�� ϴ� URI�� û�� ȣ��Ʈ www.domain.tld�� Ѵ�. ��, Host: �� Ŭ��̾�Ʈ�� http://www.domain.tld/��ε� �� , http://www.domain.tld/domain/��δ� �� Ŭ��̾�Ʈ�� ִ�.

�̸� �� ȣ��Ʈ�� ִ� �� http://www.domain.tld/domain/�� ũ�� ִ´�. �׸�� ȣ��Ʈ �� 븵ũ (�� , "file.html" �̳� "../icons/image.gif") Ȥ�� ("http://www.domain.tld/domain/misc/file.html"�̳� "/domain/misc/file.html"�� ) �տ� /domain/�� ũ�� Ѵ�.

�� Ģ�� ʿ�� Ģ�� κ�� ̳� �� ̳� �� ִ�.

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