{"id":33420,"date":"2019-11-11T09:25:26","date_gmt":"2019-11-11T05:55:26","guid":{"rendered":"https:\/\/airoserver.com\/?p=1793"},"modified":"2022-04-03T16:52:33","modified_gmt":"2022-04-03T12:22:33","slug":"everything-about-firewall","status":"publish","type":"post","link":"https:\/\/airoserver.com\/de\/engagiert\/alles-uber-die-firewall\/","title":{"rendered":"Alles \u00fcber Firewalls"},"content":{"rendered":"<p>Vielleicht haben Sie schon einmal von einer Firewall geh\u00f6rt, aber wissen Sie auch, was das ist? In diesem Beitrag werden wir alles \u00fcber die Firewall erkl\u00e4ren.<\/p>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\"><strong>Was ist eine Firewall?<\/strong><\/h4>\r\n\r\n\r\n\r\n<p>Es gibt verschiedene M\u00f6glichkeiten, Ihre Rechner zu sichern (PC oder <a href=\"https:\/\/airoserver.com\/de\/engagiert\/was-ist-ein-server\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Server (\u00f6ffnet in einer neuen Registerkarte)\">Server<\/a>) und eine Firewall ist auf jeden Fall ein wichtiges Element. Eine Firewall funktioniert einfach wie ein Grenzschutz, sie kontrolliert alle ausgehenden und eingehenden Daten eines Systems oder eines Netzwerks. Sie errichtet also eine Barriere zwischen zwei Netzwerken (netzwerkbasiert) oder zwischen dem Netzwerk und Ihrem Rechner (hostbasiert).<\/p>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\"><strong>Hostbasierte und netzwerkbasierte Firewalls<\/strong><\/h4>\r\n\r\n\r\n\r\n<p>Wir k\u00f6nnen Firewalls in hostbasierte und netzwerkbasierte Firewalls unterteilen.<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li><strong>Host-basiert:<\/strong> Es handelt sich um eine Software, die auf jedem Rechner installiert wird und den ein- und ausgehenden Datenverkehr sch\u00fctzt. Damit k\u00f6nnen Sie festlegen, was durch Ihre Ports gehen darf und was nicht. Sie k\u00f6nnen z. B. ein Programm daran hindern, von Ihrem Rechner aus zu senden, den Zugang zu Ihrem Rechner f\u00fcr bestimmte IP-Adressen beschr\u00e4nken, den Zugang zu verd\u00e4chtigen Daten blockieren, usw.<\/li>\r\n<li><strong>Netzwerkbasiert:<\/strong> Es kontrolliert den Verkehr, der zwischen einem gesicherten <a href=\"https:\/\/en.wikipedia.org\/wiki\/Local_area_network\" target=\"_blank\" rel=\"noreferrer noopener\">LAN<\/a> (Local Area Network) und das Internet. Das bedeutet, dass es den Datenverkehr filtern und das LAN vor Angriffen oder sch\u00e4dlichen Daten sch\u00fctzen kann. Es versteht nichts \u00fcber das Innere der Maschinen und sch\u00fctzt nur ein Netzwerk.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<p>Es ist nun offensichtlich, dass beides mehr Sicherheit bedeutet. Wenn sich zum Beispiel alle Ihre Rechner in einem Netzwerk befinden, m\u00f6chten Sie, dass dieses Netzwerk gesichert ist und dass jeder einzelne Rechner gesichert ist.<\/p>\r\n\r\n\r\n\r\n<div class=\"wp-block-image\">\r\n<figure class=\"aligncenter\"><img decoding=\"async\" class=\"wp-image-1808\" src=\"https:\/\/airoserver.com\/wp-content\/uploads\/2019\/11\/images_text_firewallsett.jpg\" alt=\"Hardware- und Software-Firewall\" \/><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\"><strong>Hardware- oder Software-Firewalls<\/strong><\/h4>\r\n\r\n\r\n\r\n<p>Es gibt noch eine weitere M\u00f6glichkeit, Firewalls zu kategorisieren. Eine Firewall kann aus Hardware oder Software bestehen.<\/p>\r\n\r\n\r\n\r\n<ul class=\"wp-block-list\">\r\n<li><strong>Hardware:<\/strong> Es handelt sich um ein physisches Ger\u00e4t, das den ein- und ausgehenden Datenverkehr eines Netzes kontrolliert.<\/li>\r\n<li><strong>Software: <\/strong>Nat\u00fcrlich handelt es sich um eine Software, die Sie auf einem Betriebssystem installieren sollten. Wie bereits erw\u00e4hnt, handelt es sich bei einer hostbasierten Firewall also um eine Software.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n<p>Wir sollten auch erw\u00e4hnen, dass netzwerkbasierte Firewalls sowohl aus Hardware als auch aus Software bestehen k\u00f6nnen. Sie k\u00f6nnen eine Hardware haben, die speziell als Firewall gebaut wurde, oder Sie k\u00f6nnen ein Ger\u00e4t haben und darauf eine Firewall-Software installieren. Die Entscheidung f\u00fcr eine der beiden Varianten h\u00e4ngt ganz von Ihren Vorlieben und Ihrer Nutzung ab. Die Hardware k\u00f6nnte besser funktionieren als einfache Ger\u00e4te mit installierter Software, oder Sie k\u00f6nnen auch ein starkes Ger\u00e4t (mit mehreren Netzwerkkarten) mit der Software haben, das noch besser funktioniert als die Hardware, aber Sie sollten bedenken, dass die zweite Option m\u00f6glicherweise nicht wirtschaftlich ist.<\/p>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\"><strong>Software-Firewall vs. Anti-Virus<\/strong><\/h4>\r\n\r\n\r\n\r\n<p>Wir sollten auch kurz erw\u00e4hnen, dass Firewalls und Antivirenprogramme zwei v\u00f6llig verschiedene Dinge sind. Eine Firewall ist nur daf\u00fcr zust\u00e4ndig, alles zu sichern, was in einen Computer hinein- oder herauskommt, und \u00fcberpr\u00fcft nicht die Dateien oder alles, was sich im Inneren des Computers befindet. Wenn also eine sch\u00e4dliche Datei in einen Computer gelangt, ist es Aufgabe des Antivirenprogramms, diese zu erkennen und zu beseitigen.<\/p>\r\n\r\n\r\n\r\n<p>Ich hoffe, dieser Beitrag hat Ihnen gefallen, wenn Sie unsere <a href=\"https:\/\/airoserver.com\/de\/blog\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Blog (\u00f6ffnet in einer neuen Registerkarte)\">Blog<\/a> f\u00fcr mehr!<\/p>","protected":false},"excerpt":{"rendered":"<p>You might have heard about a firewall before but do you know what is it? in this post, we are going to explain everything about the firewall. What is a firewall? There are different ways of securing your machines (PC or server) and having a firewall is definitely an important one. A firewall simply works [&hellip;]<\/p>","protected":false},"author":5,"featured_media":33934,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[179,176,182,178],"tags":[85,142,184,131],"class_list":["post-33420","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-airoserver","category-dedicated","category-shared-hosting","category-airo-vps","tag-airoserver","tag-linux","tag-network","tag-windows"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Everything about firewall<\/title>\n<meta name=\"description\" content=\"A firewall simply works as a border guard, it controls all of the outgoing and incoming data of a system or a network. They can be software or hardware.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/airoserver.com\/de\/engagiert\/alles-uber-die-firewall\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Everything about firewall\" \/>\n<meta property=\"og:description\" content=\"A firewall simply works as a border guard, it controls all of the outgoing and incoming data of a system or a network. They can be software or hardware.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/airoserver.com\/de\/engagiert\/alles-uber-die-firewall\/\" \/>\n<meta property=\"og:site_name\" content=\"Airoserver | Cloud Hosting Solutions\" \/>\n<meta property=\"article:published_time\" content=\"2019-11-11T05:55:26+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-04-03T12:22:33+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/airoserver.com\/wp-content\/uploads\/2019\/11\/ext.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"750\" \/>\n\t<meta property=\"og:image:height\" content=\"422\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"SEO Team\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Verfasst von\" \/>\n\t<meta name=\"twitter:data1\" content=\"SEO Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Gesch\u00e4tzte Lesezeit\" \/>\n\t<meta name=\"twitter:data2\" content=\"3\u00a0Minuten\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/airoserver.com\/dedicated\/everything-about-firewall\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/airoserver.com\/dedicated\/everything-about-firewall\/\"},\"author\":{\"name\":\"SEO Team\",\"@id\":\"https:\/\/airoserver.com\/#\/schema\/person\/62f9488eeb65ea1e571178292d4bb897\"},\"headline\":\"Everything about firewall\",\"datePublished\":\"2019-11-11T05:55:26+00:00\",\"dateModified\":\"2022-04-03T12:22:33+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/airoserver.com\/dedicated\/everything-about-firewall\/\"},\"wordCount\":534,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/airoserver.com\/#organization\"},\"keywords\":[\"airoserver\",\"Linux\",\"Network\",\"windows\"],\"articleSection\":[\"AiroServer\",\"Dedicated\",\"Shared Hosting\",\"VPS\"],\"inLanguage\":\"de\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/airoserver.com\/dedicated\/everything-about-firewall\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/airoserver.com\/dedicated\/everything-about-firewall\/\",\"url\":\"https:\/\/airoserver.com\/dedicated\/everything-about-firewall\/\",\"name\":\"Everything about firewall\",\"isPartOf\":{\"@id\":\"https:\/\/airoserver.com\/#website\"},\"datePublished\":\"2019-11-11T05:55:26+00:00\",\"dateModified\":\"2022-04-03T12:22:33+00:00\",\"description\":\"A firewall simply works as a border guard, it controls all of the outgoing and incoming data of a system or a network. They can be software or hardware.\",\"breadcrumb\":{\"@id\":\"https:\/\/airoserver.com\/dedicated\/everything-about-firewall\/#breadcrumb\"},\"inLanguage\":\"de\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/airoserver.com\/dedicated\/everything-about-firewall\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/airoserver.com\/dedicated\/everything-about-firewall\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/airoserver.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Everything about firewall\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/airoserver.com\/#website\",\"url\":\"https:\/\/airoserver.com\/\",\"name\":\"Airoserver | Cloud Hosting Solutions\",\"description\":\"Cloud server | Dedicated server | Domain | Hosting| SSL | Virtual server | Airoserver\",\"publisher\":{\"@id\":\"https:\/\/airoserver.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/airoserver.com\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"de\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/airoserver.com\/#organization\",\"name\":\"Airoserver | Cloud Hosting Solutions\",\"url\":\"https:\/\/airoserver.com\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"de\",\"@id\":\"https:\/\/airoserver.com\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/airoserver.com\/wp-content\/uploads\/2023\/09\/logo_airoserver.png\",\"contentUrl\":\"https:\/\/airoserver.com\/wp-content\/uploads\/2023\/09\/logo_airoserver.png\",\"width\":925,\"height\":880,\"caption\":\"Airoserver | Cloud Hosting Solutions\"},\"image\":{\"@id\":\"https:\/\/airoserver.com\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/airoserver.com\/#\/schema\/person\/62f9488eeb65ea1e571178292d4bb897\",\"name\":\"SEO Team\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"de\",\"@id\":\"https:\/\/airoserver.com\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/0cc6a1209a0e36c0bf4f0fcdcd743946df92fde7ba86163b0724f194a722a861?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/0cc6a1209a0e36c0bf4f0fcdcd743946df92fde7ba86163b0724f194a722a861?s=96&d=mm&r=g\",\"caption\":\"SEO Team\"},\"url\":\"https:\/\/airoserver.com\/de\/author\/seoteam\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Everything about firewall","description":"A firewall simply works as a border guard, it controls all of the outgoing and incoming data of a system or a network. They can be software or hardware.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/airoserver.com\/de\/engagiert\/alles-uber-die-firewall\/","og_locale":"de_DE","og_type":"article","og_title":"Everything about firewall","og_description":"A firewall simply works as a border guard, it controls all of the outgoing and incoming data of a system or a network. They can be software or hardware.","og_url":"https:\/\/airoserver.com\/de\/engagiert\/alles-uber-die-firewall\/","og_site_name":"Airoserver | Cloud Hosting Solutions","article_published_time":"2019-11-11T05:55:26+00:00","article_modified_time":"2022-04-03T12:22:33+00:00","og_image":[{"width":750,"height":422,"url":"https:\/\/airoserver.com\/wp-content\/uploads\/2019\/11\/ext.jpg","type":"image\/jpeg"}],"author":"SEO Team","twitter_card":"summary_large_image","twitter_misc":{"Verfasst von":"SEO Team","Gesch\u00e4tzte Lesezeit":"3\u00a0Minuten"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/airoserver.com\/dedicated\/everything-about-firewall\/#article","isPartOf":{"@id":"https:\/\/airoserver.com\/dedicated\/everything-about-firewall\/"},"author":{"name":"SEO Team","@id":"https:\/\/airoserver.com\/#\/schema\/person\/62f9488eeb65ea1e571178292d4bb897"},"headline":"Everything about firewall","datePublished":"2019-11-11T05:55:26+00:00","dateModified":"2022-04-03T12:22:33+00:00","mainEntityOfPage":{"@id":"https:\/\/airoserver.com\/dedicated\/everything-about-firewall\/"},"wordCount":534,"commentCount":0,"publisher":{"@id":"https:\/\/airoserver.com\/#organization"},"keywords":["airoserver","Linux","Network","windows"],"articleSection":["AiroServer","Dedicated","Shared Hosting","VPS"],"inLanguage":"de","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/airoserver.com\/dedicated\/everything-about-firewall\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/airoserver.com\/dedicated\/everything-about-firewall\/","url":"https:\/\/airoserver.com\/dedicated\/everything-about-firewall\/","name":"Everything about firewall","isPartOf":{"@id":"https:\/\/airoserver.com\/#website"},"datePublished":"2019-11-11T05:55:26+00:00","dateModified":"2022-04-03T12:22:33+00:00","description":"A firewall simply works as a border guard, it controls all of the outgoing and incoming data of a system or a network. They can be software or hardware.","breadcrumb":{"@id":"https:\/\/airoserver.com\/dedicated\/everything-about-firewall\/#breadcrumb"},"inLanguage":"de","potentialAction":[{"@type":"ReadAction","target":["https:\/\/airoserver.com\/dedicated\/everything-about-firewall\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/airoserver.com\/dedicated\/everything-about-firewall\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/airoserver.com\/"},{"@type":"ListItem","position":2,"name":"Everything about firewall"}]},{"@type":"WebSite","@id":"https:\/\/airoserver.com\/#website","url":"https:\/\/airoserver.com\/","name":"Airoserver | Cloud Hosting Solutions","description":"Cloud server | Dedicated server | Domain | Hosting| SSL | Virtual server | Airoserver","publisher":{"@id":"https:\/\/airoserver.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/airoserver.com\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"de"},{"@type":"Organization","@id":"https:\/\/airoserver.com\/#organization","name":"Airoserver | Cloud Hosting Solutions","url":"https:\/\/airoserver.com\/","logo":{"@type":"ImageObject","inLanguage":"de","@id":"https:\/\/airoserver.com\/#\/schema\/logo\/image\/","url":"https:\/\/airoserver.com\/wp-content\/uploads\/2023\/09\/logo_airoserver.png","contentUrl":"https:\/\/airoserver.com\/wp-content\/uploads\/2023\/09\/logo_airoserver.png","width":925,"height":880,"caption":"Airoserver | Cloud Hosting Solutions"},"image":{"@id":"https:\/\/airoserver.com\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/airoserver.com\/#\/schema\/person\/62f9488eeb65ea1e571178292d4bb897","name":"SEO Team","image":{"@type":"ImageObject","inLanguage":"de","@id":"https:\/\/airoserver.com\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/0cc6a1209a0e36c0bf4f0fcdcd743946df92fde7ba86163b0724f194a722a861?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/0cc6a1209a0e36c0bf4f0fcdcd743946df92fde7ba86163b0724f194a722a861?s=96&d=mm&r=g","caption":"SEO Team"},"url":"https:\/\/airoserver.com\/de\/author\/seoteam\/"}]}},"_links":{"self":[{"href":"https:\/\/airoserver.com\/de\/wp-json\/wp\/v2\/posts\/33420","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/airoserver.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/airoserver.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/airoserver.com\/de\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/airoserver.com\/de\/wp-json\/wp\/v2\/comments?post=33420"}],"version-history":[{"count":0,"href":"https:\/\/airoserver.com\/de\/wp-json\/wp\/v2\/posts\/33420\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/airoserver.com\/de\/wp-json\/wp\/v2\/media\/33934"}],"wp:attachment":[{"href":"https:\/\/airoserver.com\/de\/wp-json\/wp\/v2\/media?parent=33420"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/airoserver.com\/de\/wp-json\/wp\/v2\/categories?post=33420"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/airoserver.com\/de\/wp-json\/wp\/v2\/tags?post=33420"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}