{"id":274,"date":"2009-07-30T16:52:19","date_gmt":"2009-07-30T16:52:19","guid":{"rendered":"https:\/\/fir3netwp.gmsrrpobkbd.com\/2009\/07\/30\/instant-messaging\/"},"modified":"2021-07-27T15:49:31","modified_gmt":"2021-07-27T15:49:31","slug":"instant-messaging","status":"publish","type":"post","link":"https:\/\/www.fir3net.com\/Networking\/Protocols\/instant-messaging.html","title":{"rendered":"Instant Messaging"},"content":{"rendered":"<p>Instant Messaging is a Global Communications Medium for Business and Consumers. 85% of organizations report that they use IM for business usage and there are a reported 400 million global IM users.<br \/>IM though does present a number of security issues. Unprotected IM is vulnerable to viruses and spam. In addition to this its ability to dynamically connect out over numerous ports (tcp 80\/443 etc) to a number of various IM servers can make the process of blocking IM fairly difficult.<br \/>Within the IM landscape we group them within 3 groups:<\/p>\n<ul>\n<li>Consumer IM Services &#8211; MSN, Yahoo etc<\/li>\n<li>Enterprise IM Servers &#8211; Microsoft Communicator etc<\/li>\n<li>Hosted IM Providers &#8211; Communicator inc, Parlano ( mainly used in financial companies. Allows for organization to organization rather then person to person based IM)<\/li>\n<\/ul>\n<p><strong>How IM works<\/strong><br \/>Normal IM typically routes through a \u201cCloud Server\u201d which is hosted by the IM Provider (such as Yahoo, MSN). Messages are routed through the cloud and then relayed out to the receiving user.<\/p>\n<p><strong>Establishment<\/strong><\/p>\n<ol>\n<li>User A will initiate the sign in process and establishment with the Cloud Server.<\/li>\n<li>After the connection has been established with the IM server user A logs in with their screename and password.<\/li>\n<li>User A connection information is also sent across such as (IP, port and status). <\/li>\n<li>Once received by the Cloud Server the Presence Phase will be initiated. <\/li>\n<li>User A submits a status request of the contacts within their buddy list.<\/li>\n<li>The Cloud Server will then query and update the Presence information.<\/li>\n<\/ol>\n<p><strong>Termination<\/strong><\/p>\n<ol>\n<li>When user A goes offline or exits it will up send a message to the Cloud server indicating that they have terminated the session. <\/li>\n<li>The Cloud Server will update user A`s status to each person within user A`s contact list.<\/li>\n<li>After a period of time the server will delete the file containing user A`s session information.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Instant Messaging is a Global Communications Medium for Business and Consumers. 85% of organizations report that they use IM for business usage and there are a reported 400 million global IM users.IM though does present a number of security issues. Unprotected IM is vulnerable to viruses and spam. In addition to this its ability to &#8230; <a title=\"Instant Messaging\" class=\"read-more\" href=\"https:\/\/www.fir3net.com\/Networking\/Protocols\/instant-messaging.html\" aria-label=\"Read more about Instant Messaging\">Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Instant Messaging - Fir3net<\/title>\n<meta name=\"description\" content=\"Instant Messaging is a Global Communications Medium for Business and Consumers. 85% of organizations report that they use IM for business usage and there\" \/>\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.fir3net.com\/Networking\/Protocols\/instant-messaging.html\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Instant Messaging - 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