{"id":4309,"date":"2020-10-30T21:40:07","date_gmt":"2020-10-30T20:40:07","guid":{"rendered":"https:\/\/webhosting.de\/?p=4309"},"modified":"2020-10-30T21:40:07","modified_gmt":"2020-10-30T20:40:07","slug":"adresse-ip","status":"publish","type":"post","link":"https:\/\/webhosting.de\/fr\/ip-adresse\/","title":{"rendered":"Adresse IP"},"content":{"rendered":"<p>Nous clarifions ici les questions les plus fr\u00e9quentes concernant les adresses IP et montrons comment trouver votre propre adresse IP.<\/p>\n<h2>Qu'est-ce qu'une adresse IP et quel est son but ?<\/h2>\n<p>Une adresse IP est une combinaison individuelle de chiffres. Tout comme chaque t\u00e9l\u00e9phone a besoin d'un num\u00e9ro de t\u00e9l\u00e9phone et chaque maison d'une adresse, chaque ordinateur a \u00e9galement besoin d'un num\u00e9ro d'identification unique. D\u00e8s qu'une connexion \u00e0 la <a href=\"https:\/\/webhosting.de\/fr\/flexoptix-universal-transceiver\/\">Internet<\/a> existe, une adresse IP est attribu\u00e9e. L'adresse IP permet d'identifier et de contacter chaque appareil. Les smartphones, tablettes et autres appareils qui se connectent \u00e0 l'internet re\u00e7oivent \u00e9galement une adresse IP. L'abr\u00e9viation IP signifie \"Internet Protocol\", cette norme de r\u00e9seau est quelque chose comme le langage de trafic international pour les ordinateurs.<\/p>\n<h3>Comment une adresse IP est-elle structur\u00e9e ?<\/h3>\n<p>Tous <a href=\"https:\/\/webhosting.de\/fr\/muessen-webhoster-die-ip-adressen-ihrer-kunden-herausgeben\/\">Adresses IP<\/a> suivre un mod\u00e8le uniforme. Il existe actuellement deux normes, IPv4 et IPv6. Les adresses conformes \u00e0 la norme IPv4 sont compos\u00e9es de quatre chiffres compris entre 0 et 255 et comportent un maximum de 12 chiffres. Exemple : \"81.9.255.72\". Les chiffres sont s\u00e9par\u00e9s par un point. Toutefois, comme seul un nombre limit\u00e9 de combinaisons peut \u00eatre form\u00e9 avec le syst\u00e8me IPv4, les adresses IP sont de plus en plus souvent form\u00e9es selon la nouvelle norme IPv6. Les adresses dans le nouveau format sont compos\u00e9es de huit blocs de caract\u00e8res s\u00e9par\u00e9s par des deux points et contenant des lettres ainsi que des chiffres. Beispiel: \u201e2001:0db3:85a8:0000:0000:8a2e:0370:7334\u201c. Si l'adresse IP dans la norme IPv6 comporte de nombreux z\u00e9ros, ceux-ci peuvent \u00eatre remplac\u00e9s par deux points suppl\u00e9mentaires.<\/p>\n<h3>Comment puis-je trouver ma propre adresse IP ?<\/h3>\n<p>Sur l'internet, vous pouvez rapidement trouver votre propre adresse IP. Des sites web tels que \"http:\/\/fssecure.t-online.de\/service\/ip\/\" ou \"eigene-IP.de\" l'affichent en quelques secondes. Dans la plupart des cas, un appareil poss\u00e8de une deuxi\u00e8me adresse IP, celle de votre propre r\u00e9seau \u00e0 la maison. Ces adresses internes commencent g\u00e9n\u00e9ralement par \"192\" et peuvent \u00eatre lues directement sur l'ordinateur \u00e0 l'aide de l'invite de commande \"ipconfig\" (Windows 7 et 10).<\/p>\n<h3>Que r\u00e9v\u00e8le l'adresse IP sur l'utilisateur ?<\/h3>\n<p>Une adresse IP r\u00e9v\u00e8le o\u00f9 se trouve un utilisateur et quel est le fournisseur d'acc\u00e8s Internet utilis\u00e9. Ainsi, on peut supposer qu'un client de la <a href=\"https:\/\/webhosting.de\/fr\/telekom-sperrt-emailversand-von-den-meisten-webhostern\/\">Telekom<\/a> a une adresse IP qui commence par 212, 81 ou 91 L'emplacement est d\u00e9termin\u00e9 par l'interm\u00e9diaire du \"dial-in node\". En g\u00e9n\u00e9ral, elle se trouve \u00e0 quelques kilom\u00e8tres au maximum, dans les zones urbaines, elle est plus proche. Ainsi, la d\u00e9termination de la localisation (g\u00e9olocalisation) est relativement pr\u00e9cise.<\/p>\n<p>En outre, les fournisseurs d'acc\u00e8s \u00e0 Internet peuvent suivre le flux de donn\u00e9es de chaque client et voir ce qui est recherch\u00e9 sur le net, quels sites Web sont visit\u00e9s ou quels fichiers sont t\u00e9l\u00e9charg\u00e9s. Cependant, selon la l\u00e9gislation actuelle, les fournisseurs d'acc\u00e8s \u00e0 Internet sont oblig\u00e9s de supprimer toutes les donn\u00e9es historiques \u00e0 la fin d'une session Internet. Les informations concernant l'adresse IP \u00e0 laquelle appartient le client peuvent \u00e9galement \u00eatre stock\u00e9es pendant sept jours au maximum. Pendant cette p\u00e9riode, une ordonnance du tribunal peut \u00eatre obtenue pour conna\u00eetre l'adresse et les coordonn\u00e9es de l'utilisateur concern\u00e9. Toutefois, uniquement en cas de soup\u00e7on justifi\u00e9, par exemple si du mat\u00e9riel prot\u00e9g\u00e9 par le droit d'auteur est partag\u00e9 via une plateforme de partage de fichiers ou si de la pornographie enfantine est t\u00e9l\u00e9charg\u00e9e. En g\u00e9n\u00e9ral, un client ne conserve son adresse IP que pendant la dur\u00e9e d'une session Internet ; la prochaine fois qu'il compose un num\u00e9ro, il y a une nouvelle adresse IP. Ainsi, l'adresse IP change constamment, elle est attribu\u00e9e dynamiquement par le fournisseur d'acc\u00e8s \u00e0 Internet.<\/p>\n<h3>Est-il possible de cacher sa propre adresse IP ?<\/h3>\n<p>Il n'est pas possible de cacher compl\u00e8tement sa propre adresse IP. Cependant, il existe des programmes comme JAP ou Tor qui peuvent \u00eatre utilis\u00e9s pour cacher vos propres activit\u00e9s sur Internet. Toutefois, l'utilisation de ces services peut ralentir la vitesse de l'internet.<\/p>","protected":false},"excerpt":{"rendered":"<p>Hier kl\u00e4ren wir die h\u00e4ufigsten Fragen zum Thema IP-Adresse und zeigen, wie sich die eigene IP-Adresse herausfinden l\u00e4sst. Was ist eine IP-Adresse und wozu dient sie? Eine IP-Adresse ist eine individuelle Zahlenkombination. \u00c4hnlich wie jedes Telefon eine Telefonnummer und jedes Haus eine Stra\u00dfenanschrift braucht, ben\u00f6tigt auch jeder Computer eine einzigartige Identifikationsnummer. Sobald eine Verbindung zum 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