{"id":3065,"date":"2019-08-31T11:41:48","date_gmt":"2019-08-31T11:41:48","guid":{"rendered":"https:\/\/www.testpreptraining.com\/tutorial\/?page_id=3065"},"modified":"2022-03-03T10:15:18","modified_gmt":"2022-03-03T10:15:18","slug":"aws-hypervisor-security","status":"publish","type":"page","link":"https:\/\/www.testpreptraining.ai\/tutorial\/aws-certified-security-specialty\/aws-hypervisor-security\/","title":{"rendered":"AWS Hypervisor Security"},"content":{"rendered":"\n<p>Here, we will learn about AWS Hypervisor Security.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Virtual machines or guests run on top of\nhypervisor. <\/li><li>Hypervisor or virtual machine monitor, <ul><li>is\na shrunk down operating system<\/li><\/ul><ul><li>layer\nbetween physical system resources and virtual machines <\/li><\/ul><ul><li>manages\nand allocates system resources like CPU, memory<\/li><\/ul><ul><li>2\ntypes<ul><li>type\n1 &#8211; runs directly on physical hardware or is bare metal hypervisor<\/li><\/ul><ul><li>type\n2 &#8211; runs on top of an existing operating system<\/li><\/ul><\/li><\/ul><\/li><li>Amazon uses custom version of hypervisor<\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>CPU privilege modes<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li>CPU provides 3 privilege modes <\/li><li>Modes are numbered as 0-3<\/li><li>Also called as rings<\/li><li>Ring 0 is most privileged <\/li><li>Ring 3 is least privileged<\/li><li>&nbsp;The host\nOS executes in Ring 0. <\/li><li>The guest Operating system is present lesser-privileged\nRing 1 <\/li><li>applications in the least privileged Ring 3<\/li><li>It is a clear separation between guest and\nhypervisor<\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Instance Isolation<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li>Instances running on same machine can isolate from each other <\/li><li>The Xen hypervisor used by Amazon, implements this feature <\/li><li>Also, AWS firewall is present in hypervisor layer<ul><li>between physical network interface and instance&#8217;s virtual interface<\/li><\/ul><\/li><li>All packets pass through this layer<\/li><li>An instance\u2019s neighbors has no access to neighboring running instance <\/li><li>Physical RAM is also separated amongst instances<\/li><li>Instances have access to virtualized disks only and not raw disk<\/li><li>AWS automatically resets every block of storage used by instance <\/li><li>Memory allocated to guests is scrubbed (set to zero) before reusing it.  <\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"528\" height=\"332\" src=\"https:\/\/www.testpreptraining.ai\/tutorial\/wp-content\/uploads\/2019\/09\/image-155.png\" alt=\"AWS Hypervisor Security\" class=\"wp-image-3751\"\/><\/figure>\n\n\n\n<p>Host Operating System<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Users can use multi- factor authentication to restrict\naccess to administration hosts<\/li><li>Access is also logged and audited<\/li><li>file system on top of the virtualized disk\ndevice, can be encrypted <\/li><\/ul>\n\n\n\n<p>Guest Operating System<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Virtual instances are controlled by users <\/li><li>AWS does not have any access rights to instances or the guest OS. <\/li><li>Various security practices are recommended as<ul><li>Disabling password-only access to guests<\/li><\/ul><ul><li>Using multi-factor authentication <\/li><\/ul><ul><li>Using SSH <\/li><\/ul><ul><li>Implementing privilege escalation mechanism<\/li><\/ul><ul><li>Enabling logging on a per-user basis<\/li><\/ul><\/li><li>Amazon-provided AMIs regularly update with the latest patches.<\/li><\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Here, we will learn about AWS Hypervisor Security. Virtual machines or guests run on top of hypervisor. Hypervisor or virtual machine monitor, is a shrunk down operating system layer between physical system resources and virtual machines manages and allocates system resources like CPU, memory 2 types type 1 &#8211; runs directly on physical hardware or&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2474,"menu_order":31,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"categories":[2],"tags":[7,531],"class_list":["post-3065","page","type-page","status-publish","hentry","category-amazon-aws","tag-aws","tag-aws-hypervisor-security"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>AWS Hypervisor Security - Testprep Training Tutorials<\/title>\n<meta name=\"description\" content=\"Enhance your knowledge level by learning the concepts of AWS Hypervisor Security for AWS Certification Exam Preparation Now!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.testpreptraining.ai\/tutorial\/aws-certified-security-specialty\/aws-hypervisor-security\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"AWS Hypervisor Security - Testprep Training Tutorials\" \/>\n<meta property=\"og:description\" content=\"Enhance your knowledge level by learning the concepts of AWS Hypervisor Security for AWS Certification Exam Preparation Now!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.testpreptraining.ai\/tutorial\/aws-certified-security-specialty\/aws-hypervisor-security\/\" \/>\n<meta property=\"og:site_name\" content=\"Testprep Training Tutorials\" \/>\n<meta property=\"article:modified_time\" content=\"2022-03-03T10:15:18+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.testpreptraining.ai\/tutorial\/wp-content\/uploads\/2019\/09\/image-155.png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.testpreptraining.ai\/tutorial\/aws-certified-security-specialty\/aws-hypervisor-security\/\",\"url\":\"https:\/\/www.testpreptraining.ai\/tutorial\/aws-certified-security-specialty\/aws-hypervisor-security\/\",\"name\":\"AWS Hypervisor Security - Testprep Training Tutorials\",\"isPartOf\":{\"@id\":\"https:\/\/www.testpreptraining.ai\/tutorial\/#website\"},\"datePublished\":\"2019-08-31T11:41:48+00:00\",\"dateModified\":\"2022-03-03T10:15:18+00:00\",\"description\":\"Enhance your knowledge level by learning the concepts of AWS Hypervisor Security for AWS Certification Exam Preparation Now!\",\"breadcrumb\":{\"@id\":\"https:\/\/www.testpreptraining.ai\/tutorial\/aws-certified-security-specialty\/aws-hypervisor-security\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.testpreptraining.ai\/tutorial\/aws-certified-security-specialty\/aws-hypervisor-security\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.testpreptraining.ai\/tutorial\/aws-certified-security-specialty\/aws-hypervisor-security\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.testpreptraining.ai\/tutorial\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"AWS Certified Security Specialty\",\"item\":\"https:\/\/www.testpreptraining.ai\/tutorial\/aws-certified-security-specialty\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"AWS Hypervisor Security\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.testpreptraining.ai\/tutorial\/#website\",\"url\":\"https:\/\/www.testpreptraining.ai\/tutorial\/\",\"name\":\"Testprep Training Tutorials\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.testpreptraining.ai\/tutorial\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.testpreptraining.ai\/tutorial\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.testpreptraining.ai\/tutorial\/#organization\",\"name\":\"Testprep Training\",\"url\":\"https:\/\/www.testpreptraining.ai\/tutorial\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.testpreptraining.ai\/tutorial\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.testpreptraining.com\/tutorial\/wp-content\/uploads\/2020\/07\/tpt-logo-6.png\",\"contentUrl\":\"https:\/\/www.testpreptraining.com\/tutorial\/wp-content\/uploads\/2020\/07\/tpt-logo-6.png\",\"width\":583,\"height\":153,\"caption\":\"Testprep Training\"},\"image\":{\"@id\":\"https:\/\/www.testpreptraining.ai\/tutorial\/#\/schema\/logo\/image\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"AWS Hypervisor Security - Testprep Training Tutorials","description":"Enhance your knowledge level by learning the concepts of AWS Hypervisor Security for AWS Certification Exam Preparation Now!","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:\/\/www.testpreptraining.ai\/tutorial\/aws-certified-security-specialty\/aws-hypervisor-security\/","og_locale":"en_US","og_type":"article","og_title":"AWS Hypervisor Security - Testprep Training Tutorials","og_description":"Enhance your knowledge level by learning the concepts of AWS Hypervisor Security for AWS Certification Exam Preparation Now!","og_url":"https:\/\/www.testpreptraining.ai\/tutorial\/aws-certified-security-specialty\/aws-hypervisor-security\/","og_site_name":"Testprep Training Tutorials","article_modified_time":"2022-03-03T10:15:18+00:00","og_image":[{"url":"https:\/\/www.testpreptraining.ai\/tutorial\/wp-content\/uploads\/2019\/09\/image-155.png"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.testpreptraining.ai\/tutorial\/aws-certified-security-specialty\/aws-hypervisor-security\/","url":"https:\/\/www.testpreptraining.ai\/tutorial\/aws-certified-security-specialty\/aws-hypervisor-security\/","name":"AWS Hypervisor Security - Testprep Training Tutorials","isPartOf":{"@id":"https:\/\/www.testpreptraining.ai\/tutorial\/#website"},"datePublished":"2019-08-31T11:41:48+00:00","dateModified":"2022-03-03T10:15:18+00:00","description":"Enhance your knowledge level by learning the concepts of AWS Hypervisor Security for AWS Certification Exam Preparation Now!","breadcrumb":{"@id":"https:\/\/www.testpreptraining.ai\/tutorial\/aws-certified-security-specialty\/aws-hypervisor-security\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.testpreptraining.ai\/tutorial\/aws-certified-security-specialty\/aws-hypervisor-security\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.testpreptraining.ai\/tutorial\/aws-certified-security-specialty\/aws-hypervisor-security\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.testpreptraining.ai\/tutorial\/"},{"@type":"ListItem","position":2,"name":"AWS Certified Security Specialty","item":"https:\/\/www.testpreptraining.ai\/tutorial\/aws-certified-security-specialty\/"},{"@type":"ListItem","position":3,"name":"AWS Hypervisor Security"}]},{"@type":"WebSite","@id":"https:\/\/www.testpreptraining.ai\/tutorial\/#website","url":"https:\/\/www.testpreptraining.ai\/tutorial\/","name":"Testprep Training Tutorials","description":"","publisher":{"@id":"https:\/\/www.testpreptraining.ai\/tutorial\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.testpreptraining.ai\/tutorial\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.testpreptraining.ai\/tutorial\/#organization","name":"Testprep Training","url":"https:\/\/www.testpreptraining.ai\/tutorial\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.testpreptraining.ai\/tutorial\/#\/schema\/logo\/image\/","url":"https:\/\/www.testpreptraining.com\/tutorial\/wp-content\/uploads\/2020\/07\/tpt-logo-6.png","contentUrl":"https:\/\/www.testpreptraining.com\/tutorial\/wp-content\/uploads\/2020\/07\/tpt-logo-6.png","width":583,"height":153,"caption":"Testprep Training"},"image":{"@id":"https:\/\/www.testpreptraining.ai\/tutorial\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/www.testpreptraining.ai\/tutorial\/wp-json\/wp\/v2\/pages\/3065","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.testpreptraining.ai\/tutorial\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.testpreptraining.ai\/tutorial\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.testpreptraining.ai\/tutorial\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.testpreptraining.ai\/tutorial\/wp-json\/wp\/v2\/comments?post=3065"}],"version-history":[{"count":6,"href":"https:\/\/www.testpreptraining.ai\/tutorial\/wp-json\/wp\/v2\/pages\/3065\/revisions"}],"predecessor-version":[{"id":51852,"href":"https:\/\/www.testpreptraining.ai\/tutorial\/wp-json\/wp\/v2\/pages\/3065\/revisions\/51852"}],"up":[{"embeddable":true,"href":"https:\/\/www.testpreptraining.ai\/tutorial\/wp-json\/wp\/v2\/pages\/2474"}],"wp:attachment":[{"href":"https:\/\/www.testpreptraining.ai\/tutorial\/wp-json\/wp\/v2\/media?parent=3065"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.testpreptraining.ai\/tutorial\/wp-json\/wp\/v2\/categories?post=3065"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.testpreptraining.ai\/tutorial\/wp-json\/wp\/v2\/tags?post=3065"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}