{"id":484,"date":"2005-07-26T10:15:00","date_gmt":"2005-07-26T10:15:00","guid":{"rendered":"http:\/\/markwilson.me.uk\/blog\/2005\/07\/configuring-web-proxy-auto-discovery.htm"},"modified":"2007-07-16T23:29:22","modified_gmt":"2007-07-16T22:29:22","slug":"configuring-web-proxy-auto-discovery","status":"publish","type":"post","link":"https:\/\/www.markwilson.co.uk\/blog\/2005\/07\/configuring-web-proxy-auto-discovery.htm","title":{"rendered":"Configuring web proxy auto discovery for Internet Explorer clients"},"content":{"rendered":"<p><!--112237394794136631-->Over the last few weeks, I&#8217;ve been looking at using web proxy auto discovery (WPAD) to let a client&#8217;s PCs automatically discover the location of their Microsoft ISA Server 2000 web proxy servers through the Internet Explorer client. Note that WPAD is used by web proxy clients and firewall clients use winsock proxy auto detection (WSPAD).<\/p>\n<p><a href=\"http:\/\/support.microsoft.com\/?kbid=296591\">Microsoft knowledge base article 296591<\/a> gives background information on WPAD (for WSPAD see <a href=\"http:\/\/support.microsoft.com\/?kbid=260210\">Microsoft knowledge base article 260210<\/a>) but basically, what is involved is:<\/p>\n<ul>\n<li>A properly configured web proxy client (i.e one which has automatically detect settings checked in the Internet Explorer LAN connection settings) queries the DHCP server for option 252, which identifies an HTTP address for a file called wpad.dat which is ISA Server&#8217;s dynamically generated proxy auto configuration (PAC) file.<\/li>\n<li>If a DHCP server does not respond with option 252, the web proxy client attempts to access http:\/\/wpad.<em>domainsuffix<\/em>:80\/wpad.dat (or http:\/\/wpad.<em>domainsuffix<\/em>:80\/wspad.dat for the firewall client). To locate this URL, the remote client queries its configured DNS servers for wpad.<em>domainsuffix<\/em> &#8211; obviously issues with incorrectly configured domain suffixes will prevent automatic discovery from working. <a href=\"http:\/\/support.microsoft.com\/?kbid=307502\">Microsoft knowledge base article 307502<\/a> also indicates that the WPAD address is case sensitive.<\/li>\n<\/ul>\n<p>It should be noted that WPAD is not supported for clients that connect to the LAN with any type of dial-up connection.<\/p>\n<p>To set up WPAD, three steps are involved, as detailed in <a href=\"http:\/\/support.microsoft.com\/?kbid=309814\">Microsoft knowledge base article 309814<\/a> (Windows 2000) and <a href=\"http:\/\/support.microsoft.com\/?kbid=816320\">Microsoft knowledge base article 816320<\/a> (Windows Server 2003):<\/p>\n<blockquote>\n<li>The web proxy servers must publish automatic discovery information (which might require the web proxy service to be restarted).<\/li>\n<li>DHCP (and optionally, DNS) needs to be configured to send the WPAD URL to the web proxy client (as detailed in <a href=\"http:\/\/support.microsoft.com\/?kbid=252898\">Microsoft knowledge base article 252898<\/a>).<\/li>\n<li>Finally, the clients need to be set to automatically detect settings.<\/li>\n<\/blockquote>\n<p>We planned to roll out WPAD on a site-by-site basis, using DHCP (adding a DNS entry would affect all clients) and everything looked good using DHCP alone (no DNS installed) in my test environment; however the existing route used for production clients to access the Internet is direct via the firewall, and so the clients failed to use the DHCP-assigned WPAD information as the direct path was working (that&#8217;s the theory &#8211; it is difficult to diagnose the DHCP traffic to that level of certainty, other than using a network monitor and examining packets). <\/p>\n<p>One possibility for the failure is described in <a href=\"http:\/\/support.microsoft.com\/?kbid=312864\">Microsoft knowledge base article 312864<\/a> but I could not replicate this behaviour in testing and as it is only linked from the Windows Server 2003 version of the knowledge base article describing configuration of firewall and web proxy client auto discovery, I am not convinced that the article applies to clients using Windows 2000 DHCP servers.<\/p>\n<p>The current plan is to use a group policy object, filtered by group membership, to manipulate client proxy settings and use http:\/\/<em>proxyarray<\/em>.<em>domainname<\/em>.<em>suffix<\/em>\/wpad.dat as an automatic configuration script. This has the advantage that we can control who can access the Internet (take a user out of the group to remove their proxy access &#8211; once the direct path has been removed), but does not use WPAD at all.<\/p>\n<p>One comment which my client made was that the wpad.dat file which ISA Server uses looks complex compared to the .PAC files used by the parent company&#8217;s web proxy servers. We could have used a simple .PAC file, but the major advantage of wpad.dat is that it is updated dynamically to reflect changes in the proxy server configuration.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Over the last few weeks, I&#8217;ve been looking at using web proxy auto discovery (WPAD) to let a client&#8217;s PCs automatically discover the location of their Microsoft ISA Server 2000 web proxy servers through the Internet Explorer client. Note that WPAD is used by web proxy clients and firewall clients use winsock proxy auto detection &hellip; <a href=\"https:\/\/www.markwilson.co.uk\/blog\/2005\/07\/configuring-web-proxy-auto-discovery.htm\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Configuring web proxy auto discovery for Internet Explorer clients<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[],"tags":[71,70],"class_list":["post-484","post","type-post","status-publish","format-standard","hentry","tag-isa","tag-web-browsers"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Configuring web proxy auto discovery for Internet Explorer clients - markwilson.it<\/title>\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.markwilson.co.uk\/blog\/2005\/07\/configuring-web-proxy-auto-discovery.htm\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Configuring web proxy auto discovery for Internet Explorer clients - markwilson.it\" \/>\n<meta property=\"og:description\" content=\"Over the last few weeks, I&#8217;ve been looking at using web proxy auto discovery (WPAD) to let a client&#8217;s PCs automatically discover the location of their Microsoft ISA Server 2000 web proxy servers through the Internet Explorer client. Note that WPAD is used by web proxy clients and firewall clients use winsock proxy auto detection &hellip; Continue reading Configuring web proxy auto discovery for Internet Explorer clients\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.markwilson.co.uk\/blog\/2005\/07\/configuring-web-proxy-auto-discovery.htm\" \/>\n<meta property=\"og:site_name\" content=\"markwilson.it\" \/>\n<meta property=\"article:published_time\" content=\"2005-07-26T10:15:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2007-07-16T22:29:22+00:00\" \/>\n<meta name=\"author\" content=\"Mark Wilson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@markwilsonit\" \/>\n<meta name=\"twitter:site\" content=\"@markwilsonit\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Mark Wilson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2005\\\/07\\\/configuring-web-proxy-auto-discovery.htm#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2005\\\/07\\\/configuring-web-proxy-auto-discovery.htm\"},\"author\":{\"name\":\"Mark Wilson\",\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/#\\\/schema\\\/person\\\/98f61365e7c39d6be942174b8c4de468\"},\"headline\":\"Configuring web proxy auto discovery for Internet Explorer clients\",\"datePublished\":\"2005-07-26T10:15:00+00:00\",\"dateModified\":\"2007-07-16T22:29:22+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2005\\\/07\\\/configuring-web-proxy-auto-discovery.htm\"},\"wordCount\":601,\"commentCount\":3,\"publisher\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/#\\\/schema\\\/person\\\/98f61365e7c39d6be942174b8c4de468\"},\"keywords\":[\"Microsoft ISA Server\",\"Web Browsers\"],\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2005\\\/07\\\/configuring-web-proxy-auto-discovery.htm#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2005\\\/07\\\/configuring-web-proxy-auto-discovery.htm\",\"url\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2005\\\/07\\\/configuring-web-proxy-auto-discovery.htm\",\"name\":\"Configuring web proxy auto discovery for Internet Explorer clients - markwilson.it\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/#website\"},\"datePublished\":\"2005-07-26T10:15:00+00:00\",\"dateModified\":\"2007-07-16T22:29:22+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2005\\\/07\\\/configuring-web-proxy-auto-discovery.htm#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2005\\\/07\\\/configuring-web-proxy-auto-discovery.htm\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/2005\\\/07\\\/configuring-web-proxy-auto-discovery.htm#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Configuring web proxy auto discovery for Internet Explorer clients\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/\",\"name\":\"markwilson.it\",\"description\":\"get-info -class technology | write-output &gt; \\\/dev\\\/web\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/#\\\/schema\\\/person\\\/98f61365e7c39d6be942174b8c4de468\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-GB\"},{\"@type\":[\"Person\",\"Organization\"],\"@id\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/#\\\/schema\\\/person\\\/98f61365e7c39d6be942174b8c4de468\",\"name\":\"Mark Wilson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\\\/\\\/i0.wp.com\\\/www.markwilson.co.uk\\\/blog\\\/uploads\\\/image-4.png?fit=800%2C800&ssl=1\",\"url\":\"https:\\\/\\\/i0.wp.com\\\/www.markwilson.co.uk\\\/blog\\\/uploads\\\/image-4.png?fit=800%2C800&ssl=1\",\"contentUrl\":\"https:\\\/\\\/i0.wp.com\\\/www.markwilson.co.uk\\\/blog\\\/uploads\\\/image-4.png?fit=800%2C800&ssl=1\",\"width\":800,\"height\":800,\"caption\":\"Mark Wilson\"},\"logo\":{\"@id\":\"https:\\\/\\\/i0.wp.com\\\/www.markwilson.co.uk\\\/blog\\\/uploads\\\/image-4.png?fit=800%2C800&ssl=1\"},\"description\":\"A Chartered IT Professional, with recent experience in technology leadership, IT strategy and practice management roles, Mark Wilson is an Enterprise Architect in the Advisory and Management Group at risual. During a career spanning more than two decades, Mark has gained widespread recognition as an expert in his field including both industry and national press exposure. In addition to certifications from Microsoft, VMware, Red Hat, The Open Group and Axelos, Mark held a Microsoft Most Valuable Professional (MVP) award for three years and is now part of the MVP Reconnect programme. Mark is also well-known on social media and maintains an award-winning blog.\",\"sameAs\":[\"http:\\\/\\\/www.markwilson.co.uk\\\/\",\"https:\\\/\\\/www.instagram.com\\\/markwilsonuk\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/in\\\/markawilson\\\/\",\"https:\\\/\\\/x.com\\\/markwilsonit\",\"https:\\\/\\\/www.youtube.com\\\/channel\\\/UCWHlZCoHRTocdvtrOJ2IL4A\"],\"url\":\"https:\\\/\\\/www.markwilson.co.uk\\\/blog\\\/author\\\/mark-wilson\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Configuring web proxy auto discovery for Internet Explorer clients - markwilson.it","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.markwilson.co.uk\/blog\/2005\/07\/configuring-web-proxy-auto-discovery.htm","og_locale":"en_GB","og_type":"article","og_title":"Configuring web proxy auto discovery for Internet Explorer clients - markwilson.it","og_description":"Over the last few weeks, I&#8217;ve been looking at using web proxy auto discovery (WPAD) to let a client&#8217;s PCs automatically discover the location of their Microsoft ISA Server 2000 web proxy servers through the Internet Explorer client. Note that WPAD is used by web proxy clients and firewall clients use winsock proxy auto detection &hellip; Continue reading Configuring web proxy auto discovery for Internet Explorer clients","og_url":"https:\/\/www.markwilson.co.uk\/blog\/2005\/07\/configuring-web-proxy-auto-discovery.htm","og_site_name":"markwilson.it","article_published_time":"2005-07-26T10:15:00+00:00","article_modified_time":"2007-07-16T22:29:22+00:00","author":"Mark Wilson","twitter_card":"summary_large_image","twitter_creator":"@markwilsonit","twitter_site":"@markwilsonit","twitter_misc":{"Written by":"Mark Wilson","Estimated reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.markwilson.co.uk\/blog\/2005\/07\/configuring-web-proxy-auto-discovery.htm#article","isPartOf":{"@id":"https:\/\/www.markwilson.co.uk\/blog\/2005\/07\/configuring-web-proxy-auto-discovery.htm"},"author":{"name":"Mark Wilson","@id":"https:\/\/www.markwilson.co.uk\/blog\/#\/schema\/person\/98f61365e7c39d6be942174b8c4de468"},"headline":"Configuring web proxy auto discovery for Internet Explorer clients","datePublished":"2005-07-26T10:15:00+00:00","dateModified":"2007-07-16T22:29:22+00:00","mainEntityOfPage":{"@id":"https:\/\/www.markwilson.co.uk\/blog\/2005\/07\/configuring-web-proxy-auto-discovery.htm"},"wordCount":601,"commentCount":3,"publisher":{"@id":"https:\/\/www.markwilson.co.uk\/blog\/#\/schema\/person\/98f61365e7c39d6be942174b8c4de468"},"keywords":["Microsoft ISA Server","Web Browsers"],"inLanguage":"en-GB","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.markwilson.co.uk\/blog\/2005\/07\/configuring-web-proxy-auto-discovery.htm#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.markwilson.co.uk\/blog\/2005\/07\/configuring-web-proxy-auto-discovery.htm","url":"https:\/\/www.markwilson.co.uk\/blog\/2005\/07\/configuring-web-proxy-auto-discovery.htm","name":"Configuring web proxy auto discovery for Internet Explorer clients - markwilson.it","isPartOf":{"@id":"https:\/\/www.markwilson.co.uk\/blog\/#website"},"datePublished":"2005-07-26T10:15:00+00:00","dateModified":"2007-07-16T22:29:22+00:00","breadcrumb":{"@id":"https:\/\/www.markwilson.co.uk\/blog\/2005\/07\/configuring-web-proxy-auto-discovery.htm#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.markwilson.co.uk\/blog\/2005\/07\/configuring-web-proxy-auto-discovery.htm"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.markwilson.co.uk\/blog\/2005\/07\/configuring-web-proxy-auto-discovery.htm#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.markwilson.co.uk\/blog"},{"@type":"ListItem","position":2,"name":"Configuring web proxy auto discovery for Internet Explorer clients"}]},{"@type":"WebSite","@id":"https:\/\/www.markwilson.co.uk\/blog\/#website","url":"https:\/\/www.markwilson.co.uk\/blog\/","name":"markwilson.it","description":"get-info -class technology | write-output &gt; \/dev\/web","publisher":{"@id":"https:\/\/www.markwilson.co.uk\/blog\/#\/schema\/person\/98f61365e7c39d6be942174b8c4de468"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.markwilson.co.uk\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-GB"},{"@type":["Person","Organization"],"@id":"https:\/\/www.markwilson.co.uk\/blog\/#\/schema\/person\/98f61365e7c39d6be942174b8c4de468","name":"Mark Wilson","image":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/i0.wp.com\/www.markwilson.co.uk\/blog\/uploads\/image-4.png?fit=800%2C800&ssl=1","url":"https:\/\/i0.wp.com\/www.markwilson.co.uk\/blog\/uploads\/image-4.png?fit=800%2C800&ssl=1","contentUrl":"https:\/\/i0.wp.com\/www.markwilson.co.uk\/blog\/uploads\/image-4.png?fit=800%2C800&ssl=1","width":800,"height":800,"caption":"Mark Wilson"},"logo":{"@id":"https:\/\/i0.wp.com\/www.markwilson.co.uk\/blog\/uploads\/image-4.png?fit=800%2C800&ssl=1"},"description":"A Chartered IT Professional, with recent experience in technology leadership, IT strategy and practice management roles, Mark Wilson is an Enterprise Architect in the Advisory and Management Group at risual. During a career spanning more than two decades, Mark has gained widespread recognition as an expert in his field including both industry and national press exposure. In addition to certifications from Microsoft, VMware, Red Hat, The Open Group and Axelos, Mark held a Microsoft Most Valuable Professional (MVP) award for three years and is now part of the MVP Reconnect programme. Mark is also well-known on social media and maintains an award-winning blog.","sameAs":["http:\/\/www.markwilson.co.uk\/","https:\/\/www.instagram.com\/markwilsonuk\/","https:\/\/www.linkedin.com\/in\/markawilson\/","https:\/\/x.com\/markwilsonit","https:\/\/www.youtube.com\/channel\/UCWHlZCoHRTocdvtrOJ2IL4A"],"url":"https:\/\/www.markwilson.co.uk\/blog\/author\/mark-wilson"}]}},"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":234,"url":"https:\/\/www.markwilson.co.uk\/blog\/2005\/08\/more-on-wpad.htm","url_meta":{"origin":484,"position":0},"title":"More on WPAD","author":"Mark Wilson","date":"Tuesday 2 August 2005","format":false,"excerpt":"Last week I blogged about configuring WPAD for Internet Explorer clients. Since then I've come across some more information that might be useful: For those writing proxy autoconfiguration (.PAC) files, Chapter 26 of the Internet Explorer Resource Kit details the various JavaScript functions that are available for use.There's a who\u2026","rel":"","context":"In \"Microsoft ISA Server\"","block_context":{"text":"Microsoft ISA Server","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/isa"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1016,"url":"https:\/\/www.markwilson.co.uk\/blog\/2008\/03\/isa-server-client-software.htm","url_meta":{"origin":484,"position":1},"title":"ISA Server client software","author":"Mark Wilson","date":"Thursday 13 March 2008","format":false,"excerpt":"Fighting with ISA Server 2006, as I have been for the last few days, has given me an opportunity to refresh my knowledge of the various ISA Server clients. Actually, calling them clients is far more grandiose than is strictly necessary (only one of them involves the installation of client\u2026","rel":"","context":"In \"Microsoft ISA Server\"","block_context":{"text":"Microsoft ISA Server","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/isa"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":196,"url":"https:\/\/www.markwilson.co.uk\/blog\/2005\/07\/allowing-isa-server-2000-web-proxy.htm","url_meta":{"origin":484,"position":2},"title":"Allowing ISA Server 2000 web proxy clients to use non-standard ports for HTTPS","author":"Mark Wilson","date":"Friday 15 July 2005","format":false,"excerpt":"I spent most of today trying to get some ISA Server 2000 web proxy clients to access a web application using HTTPS on a non-standard port (4443). The issue was further complicated by the fact that the application server needed to be accessed using an upstream proxy server. Once the\u2026","rel":"","context":"In \"Microsoft ISA Server\"","block_context":{"text":"Microsoft ISA Server","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/isa"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":317,"url":"https:\/\/www.markwilson.co.uk\/blog\/2005\/06\/chaining-proxy-servers.htm","url_meta":{"origin":484,"position":3},"title":"Chaining proxy servers","author":"Mark Wilson","date":"Thursday 30 June 2005","format":false,"excerpt":"I spent some time yesterday chaining two ISA Server 2000 proxy arrays. As there doesn't seem to be a lot of information about on the subject, I thought I'd provide some here (most of what can be found easily is about using proxy chaining for anonymity, and mostly reads as\u2026","rel":"","context":"In \"Microsoft ISA Server\"","block_context":{"text":"Microsoft ISA Server","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/isa"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":507,"url":"https:\/\/www.markwilson.co.uk\/blog\/2005\/05\/installing-and-verifying-configuration.htm","url_meta":{"origin":484,"position":4},"title":"Installing and verifying the configuration of an ISA Server 2000 array","author":"Mark Wilson","date":"Friday 6 May 2005","format":false,"excerpt":"Just over a year ago, I posted a blog entry which gives a 10,000 feet view of Microsoft ISA Server 2000. I haven't done anything with ISA Server since then but over the last few days, I've been installing an new ISA Server 2000 array into an existing enterprise for\u2026","rel":"","context":"In \"Microsoft ISA Server\"","block_context":{"text":"Microsoft ISA Server","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/isa"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":236,"url":"https:\/\/www.markwilson.co.uk\/blog\/2004\/04\/10000-feet-view-of-microsoft-isa.htm","url_meta":{"origin":484,"position":5},"title":"10,000 feet view of Microsoft ISA Server 2000","author":"Mark Wilson","date":"Thursday 8 April 2004","format":false,"excerpt":"Microsoft Internet Security and Acceleration (ISA) Server 2000 is Microsoft's firewall and proxy server product, replacing Microsoft Proxy Server. ISA Server 2000 operates in one of three modes: Firewall - security server. Caching (i.e. proxy) - acceleration server. Integrated - firewall and caching. As a firewall, ISA Server's filtering capabilities\u2026","rel":"","context":"In \"Microsoft ISA Server\"","block_context":{"text":"Microsoft ISA Server","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/isa"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/posts\/484","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/comments?post=484"}],"version-history":[{"count":0,"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/posts\/484\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/media?parent=484"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/categories?post=484"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/tags?post=484"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}