{"id":488,"date":"2006-05-18T06:54:00","date_gmt":"2006-05-18T06:54:00","guid":{"rendered":"http:\/\/markwilson.me.uk\/blog\/2006\/05\/redirecting-web-proxy-access-when-the.htm"},"modified":"2007-03-09T13:58:48","modified_gmt":"2007-03-09T13:58:48","slug":"redirecting-web-proxy-access-when-the","status":"publish","type":"post","link":"https:\/\/www.markwilson.co.uk\/blog\/2006\/05\/redirecting-web-proxy-access-when-the.htm","title":{"rendered":"Redirecting web proxy access when the server name changes"},"content":{"rendered":"

Despite the problems I experienced migrating from Proxy Server 2.0 to ISA Server 2004<\/a> last night, I did have some success using a little DNS trickery to avoid changing the proxy settings on all clients (the new web proxy server has a different name to the old one). Here’s how it works:<\/p>\n

    \n
  1. In DNS, delete the original host address (A) record for the old server.<\/li>\n
  2. Next, create a host address record for the new server and an alias (CNAME) record with the name of the old server, pointing to the fully qualified domain name of the new server.<\/li>\n<\/ol>\n

    All DNS lookups for the old server should be redirected to the new server (via the DNS alias), allowing the proxy settings in the web browser to be updated at leisure (of course, in an Active Directory environment, they could also be updated via group policy).<\/p>\n","protected":false},"excerpt":{"rendered":"

    Despite the problems I experienced migrating from Proxy Server 2.0 to ISA Server 2004 last night, I did have some success using a little DNS trickery to avoid changing the proxy settings on all clients (the new web proxy server has a different name to the old one). Here’s how it works: In DNS, delete … Continue reading Redirecting web proxy access when the server name changes<\/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":[7],"class_list":["post-488","post","type-post","status-publish","format-standard","hentry","tag-dns"],"yoast_head":"\nRedirecting web proxy access when the server name changes - 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\/2006\/05\/redirecting-web-proxy-access-when-the.htm\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Redirecting web proxy access when the server name changes - markwilson.it\" \/>\n<meta property=\"og:description\" content=\"Despite the problems I experienced migrating from Proxy Server 2.0 to ISA Server 2004 last night, I did have some success using a little DNS trickery to avoid changing the proxy settings on all clients (the new web proxy server has a different name to the old one). 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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":288,"url":"https:\/\/www.markwilson.co.uk\/blog\/2006\/05\/isa-server-2004-gotchas.htm","url_meta":{"origin":488,"position":3},"title":"ISA Server 2004 “gotchas”","author":"Mark Wilson","date":"Thursday 25 May 2006","format":false,"excerpt":"After having to abort last week's attempt to replace an aging Microsoft Proxy Server 2.0 installation with Microsoft Internet Security and Acceleration (ISA) Server 2004, last night I had another go and I'm pleased to say that the ISA Server is now up and running. 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I was pretty sure that I had my networking sorted, following Jim Harrison's article on configuring ISA Server interface settings (although a colleague did need to point out\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":312,"url":"https:\/\/www.markwilson.co.uk\/blog\/2005\/07\/best-practices-for-managing-automatic.htm","url_meta":{"origin":488,"position":5},"title":"Best practices for managing automatic IP addressing with DHCP","author":"Mark Wilson","date":"Thursday 21 July 2005","format":false,"excerpt":"Dynamic host configuration protocol (DHCP) is often taken for granted - we expect it to work; however there are a few items which need to be considered and this post is intended as a general discussion of DHCP best practice. Most administrators will be familiar with the overall DHCP concept\u2026","rel":"","context":"In \"Microsoft Windows 2000\"","block_context":{"text":"Microsoft Windows 2000","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/windows-2000"},"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\/488","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=488"}],"version-history":[{"count":0,"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/posts\/488\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/media?parent=488"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/categories?post=488"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.markwilson.co.uk\/blog\/wp-json\/wp\/v2\/tags?post=488"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}