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    Part 1 : ·ÄÉ®ÕáÅÐá¹Ç»¯ÔºÑµÔ·Õèà¡ÕèÂÇ¢éͧ¡ÑºàÁÅìà«ÔÃì¿àÇÍÃì
  • ÈÖ¡ÉÒ·ÄɯÕáÅÐËÅÑ¡¡Ò÷ӧҹ¢Í§àÁÅìà«ÔÃì¿àÇÍÃì ËÅÑ¡¡ÒÃÍ͡Ẻâ¤Ã§ÊÃéÒ§¢Í§ÃкºãËéàËÁÒÐÊÁ¡ÑºÊÀÒ¾áÇ´ÅéÍÁ¡ÒÃãªé§Ò¹ ¤Ø³ÊÁºÑµÔáÅФÇÒÁµéͧ¡Ò÷Õè¨Óà»ç¹à¡ÕèÂǡѺÃкºÍÕàÁÅì
  • ¡ÒÃÍ͡ẺáÅШѴÇÒ§â¤Ã§ÊÃéÒ§¢Í§Ãкº»¯ÔºÑµÔ¡ÒÃÅչء«ìà¾×èÍÃͧÃѺ¡Ò÷ӧҹ㹰ҹÐàÁÅìà«ÔÃì¿àÇÍÃì ¡ÒõԴµÑé§á¾¤à¡¨·Õèà¡ÕèÂÇ¢éͧâ´ÂÂÖ´ËÅÑ¡»ÃÐÊÔ·¸ÔÀÒ¾ áÅФÇÒÁ»ÅÍ´ÀÑÂà»ç¹ÊӤѭ
  • ÈÖ¡ÉÒâ¤Ã§ÊÃéÒ§ Êèǹ»ÃСͺ áÅСÒ÷ӧҹ¢Í§ Postfix Mail Server â´ÂÅÐàÍÕ´ à¾×è͹ӤÇÒÁÃÙé¤ÇÒÁà¢éÒã¨ä»ãªé㹡Òä͹¿Ô¡â»Ãá¡ÃÁ ÊÒÁÒöµÃǨÊͺá¡é䢻ѭËÒä´éÍÂèÒ§¶Ù¡µéͧ áÅÐÊÒÁÒö»ÃѺ»Ãا´Ñ´á»Å§Ãкºä´éµÒÁµéͧ¡ÒÃ
  • ŧÁ×ͤ͹¿Ô¡Ãкº¢Ñé¹¾×é¹°Ò¹ÍÂèÒ§ÃÇ´àÃçÇ ½Ö¡·Ñ¡ÉСÒõÃǨÊͺ¤ÇÒÁ¶Ù¡µéͧ¢Í§Ãкº áÅСÒÃá¡é䢻ѭËÒ
  • ÈÖ¡ÉÒáÅШѴµÑé§Ãкº Domain Name Service ( DNS ) à¾×èÍʹѺʹع¡Ò÷ӧҹ¢Í§ÃкºÍÕàÁÅì µÑé§áµèÊÀÒ¾áÇ´ÅéÍÁẺ Intranet , Internet áÅÐà¾×èͨش»ÃÐʧ¤ì´éÒ¹¡ÒáÓ˹´àÊé¹·Ò§à´Ô¹¢Í§ÍÕàÁÅìµÒÁµéͧ¡ÒÃ
  • ÈÖ¡ÉÒ¤ÇÒÁᵡµèÒ§ÃÐËÇèÒ§Ãкº¨Ñ´à¡çºÍÕàÁÅì ( Message Store ) áµèÅлÃÐàÀ·à»ÃÕºà·Õº¢éÍ´Õ ¢éÍàÊÕ ·Ñé§ã¹´éÒ¹»ÃÐÊÔ·¸ÔÀÒ¾ ¤ÇÒÁÊдǡ㹡ÒúÃÔËÒèѴ¡ÒÃáÅФÇÒÁÊÒÁÒö㹡ÒâÂÒÂÃкºã¹Í¹Ò¤µà¾×èÍàÅ×Í¡ãªéãËéàËÁÒÐÊÁ¡Ñº¤ÇÒÁµéͧ¡Òâͧͧ¤ì¡Ã
  • ½Ö¡»¯ÔºÑµÔ¡Òä͹¿Ô¡ Message Store ·ÕèÁդسÊÁºÑµÔÂ×´ËÂØè¹ÃͧÃѺ¡Ò÷ӧҹ·Õèà»ç¹Ãкºà»Ô´ ÊÒÁÒö¢ÂÒÂà¹×éÍ·Õè¨Ñ´à¡çºÍÕàÁÅì ( Mail box ) ä´éÍÂèÒ§äÁè¨Ó¡Ñ´ ÃͧÃѺÃкºâ¤ÇµéÒ ÃкºÂÙÊà«ÍÃìàÊÁ×͹·ÕèäÁè¢Öé¹ÍÂÙè¡ÑºÃÒª×èÍÂÙÊà«ÍÃìã¹Åչء«ì
  • ¤Í¹¿Ô¡ÃкºàÁÅìºê͡ẺÍѵâ¹ÁѵԷÕèÊÃéÒ§â¿Åà´ÍÃì¢Öé¹àͧä´é·Ñ¹·Õ ·ÕèÂÙÊà«ÍÃìàÃÔèÁãªé§Ò¹¤ÃÑé§ááËÃ×ÍàÁ×èÍÁÕÍÕàÁÅÅìàÃÔèÁÊè§à¢éÒÁÒËÒà»ç¹¤ÃÑé§áá
  • ¤Í¹¿Ô¡ÃкºàÁÅìºêÍ¡·ÕèÁÕ¡ÒèӡѴâ¤ÇµéÒ ¡ÒáÓ˹´¢¹Ò´¢Í§àÁÅìºêÍ¡·Õèà»ç¹´Õ¿Íŵì ÇÔ¸Õ¡ÒûÃѺ¤èÒâ¤ÇµéÒ ¡ÒÃãªéâ»Ãá¡ÃÁ»ÅÑê¡ÍÔ¹à¾×èÍáÊ´§»ÃÔÁÒ³¡ÒÃãªéà¹×éÍ·ÕèãËéÂÙÊà«ÍÃìä´é·ÃÒºã¹â»á¡ÃÁàÇçºàÁÅì
  • ¡Òõ͹¿Ô¡â»Ãá¡ÃÁ Apache áÅÐ â»Ãá¡ÃÁ Squirrel Mail à¾×èÍãªé§Ò¹à»ç¹àÇçºàÁÅì ¡ÒõԴµÑé§»ÅÑê¡ÍÔ¹à¾×èÍàÊÃÔÁ¡Ò÷ӧҹ´éÒ¹µèÒ§æ
  • ·´ÅͧÃѺÊè§ÍÕàÁÅìã¹ÅѡɳзÔÈ·Ò§µèÒ§æ ·Ñé§ÀÒÂã¹Í§¤ì¡ÃáÅÐÀÒ¹͡¼èÒ¹à¤Ã×Í¢èÒÂÍÔ¹àµÍÃìà¹çµ
  • Part 2 : Virtual Domain/Hosting
  • ÈÖ¡ÉÒ¡Åä¡¡ÒèѴà¡çºÃÒª×èÍÂÙÊà«ÍÃì ã¹áËÅè§à¡çº¢éÍÁÙÅ»ÃÐàÀ·µèÒ§æ ä´éá¡è PAM, Shadow, SASL, LDAP, MySQL à»ÃÕºà·Õº¢éÍ´Õ ¢éÍàÊÕ¢ͧáµèÅÐÇÔ¸Õ¡ÒèѴà¡çº ·Ñé§ã¹á§è»ÃÐÊÔ·¸ÔÀÒ¾ ¡ÒúÃÔËÒèѴ¡ÒÃáÅФÇÒÁ»ÅÍ´ÀÑÂ


  • ½Ö¡»¯ÔºÑµÔ¡ÒèѴà¡çº¢éÍÁÙÅ´éÇ saslauthd à¾×èÍÃͧÃѺÃÒª×èÍÂÙÊà«ÍÃìẺ Virtual User Account áÅÐÃͧÃѺÃкº¡Ò÷ӧҹẺËÅÒÂâ´àÁ¹ã¹âÎʵìà´ÕÂǡѹ ( Virtual Domain ) «Öè§à»ç¹·Õè¹ÔÂÁ·ÑèÇä»ã¹¡ÒÃÊÃéÒ§ÃкºàÁÅìà«ÔÃì¿àÇÍÃìà¾×èͺÃÔ¡ÒÃâÎʵÔé§
  • ¡Òä͹¿Ô¡ Postfix à¾×èÍÃͧÃѺ¡ÒÃÃѺÊè§àÁÅìẺËÅÒÂâ´àÁ¹ ÈÖ¡ÉÒÃٻẺ¡ÒèѴà¡çºàÁÅìºêÍ¡¢Í§ÂÙÊà«ÍÃì·ÕèÃͧÃѺËÅÒÂâ´àÁ¹ã¹ÅѡɳСÒèѴà¡çºáºº MailDir
  • ½Ö¡»¯ÔºÑµÔ¡ÒôѴá»Å§â»Ãá¡ÃÁàÇçºàÁÅì ( Squirrel Mail ) à¾×èÍÃͧÃѺ¡ÒÃãªé§Ò¹áººËÅÒÂâ´àÁ¹ ( ¼ÙéàÃÕ¹¨Ðµéͧ·´ÅͧÊÃéÒ§â´àÁ¹äÁè¹éÍ¡ÇèÒ 3 â´àÁ¹ )
  • ÈÖ¡ÉÒËÅÑ¡¡Ò÷ӧҹ¢Í§ LDAP à¾×è͹ÓÁÒãªé㹡ÒèѴà¡çººÑ­ªÕÃÒª×èͼÙéãªéÃкºÍÕàÁÅì ÃÇÁ·Ñé§ÃËÑʼèÒ¹áÅТéÍÁÙÅ»ÃШӵÑÇÍ×è¹æ à¾×è͹ÓÁÒ»ÃÐÂØ¡µìãªé¡ÑºàÁÅìà«ÔÃì¿àÇÍÃìÃÇÁä»¶Ö§à»ç¹áËÅ觺ÃÔ¡ÒâéÍÁÙÅ·ÑèÇ·Ñé§Í§¤ì¡Ã ( Global Address Book )
  • ½Ö¡»¯ÔºÑµÔ¡Òä͹¿Ô¡ LDAP Server ¡ÒúÃÔËÒèѴ¡ÒâéÍÁÙÅ·Ñé§áººãªéªØ´¤ÓÊÑè§Ê¤ÃÔ»µì áÅÐâ»Ãá¡ÃÁºÃÔËÒÃẺ¡ÃÒ¿¿Ô¤
  • ·Ó¡Òä͹¿Ô¡àª×èÍÁâ§ÃÐËÇèÒ§°Ò¹¢éÍÁÙÅẺ SASL ¡Ñº LDAP Server
  • ÈÖ¡ÉÒÅӴѺ¡ÒÃãªéÃÒª×èÍÂÙÊà«ÍÃìàÁ×èÍÃкºÁÕáËÅè§ÃÒª×èÍÂÙÊà«ÍÃìËÅÒÂáËÅè§¾ÃéÍÁæ ¡Ñ¹ ä´éá¡è shadow password, SASL áÅÐ LDAP
  • ·´Åͧ¹Ó¢éÍÁÙÅã¹ LDAP Server ÁÒãªéÃèÇÁ¡ÑºàÇçºàÁÅìã¹´éÒ¹ Global Address Book


  • Part 3 : ¡Òûéͧ¡Ñ¹Êá»ÁáÅÐäÇÃÑÊã¹ÃкºàÁÅì
  • ÈÖ¡ÉÒâ¤Ã§ÊÃéÒ§ÃٻẺ¢Í§ message µÒÁÁҵðҹ RFC822 áÅÐÊèǹ¢ÂÒ·Õèà»ç¹Êèǹ attachment ¡Ò÷ӧҹ¢Í§ MIME Type ¢Í§â»Ãá¡ÃÁàÁÅìã¹ÃдѺ OSI Layer 6 à¾×èͤÇÒÁÃÙé ¤ÇÒÁà¢éÒ㨾×é¹°Ò¹·ÕèÊӤѭ㹡ÒáÃͧÍÕàÁÅì ( Message Filtering )
  • ÈÖ¡ÉÒáÅз´Åͧ»¯ÔºÑµÔ¤Ø³ÊÁºÑµÔ·Õèà¡ÕèÂÇ¢éͧ¡Ñº¡ÒáÃͧÍÕàÁÅì·ÕèÁÕÍÂÙèã¹â»Ãá¡ÃÁ Postfix ä´éá¡è Header/body filter, Regular Expression lookup table à¾×èÍãªé㹡ÒáÃͧÍÕàÁÅìã¹ÃдѺàº×éͧµé¹
  • ÈÖ¡ÉÒ¡Ò÷ӧҹ¢Í§âÁ´ÙÅ Transport áÅÐâ¤Ã§ÊÃéÒ§¢Í§ä¿Åì¤Í¹¿Ô¡ master.cf ¢Í§ Postfix à¾×è͹ÓÁÒãªé㹡ÒÃÃѺÊè§¢éÍÁÙšѺâ»Ãá¡ÃÁÀÒ¹͡·Ñé§·ÕèÍÂÙèã¹âÎʵìà´ÕÂǡѹáÅеԴµÑé§äÇéµèÒ§âÎÊµì «Öè§»ÃÐÂØ¡µìãªé¡Ñº¡ÒáÃͧÊá»ÁáÅÐäÇÃÑÊà»ç¹ÊèǹãË­è
  • ½Ö¡»¯ÔºÑµÔ¡Òä͹¿Ô¡â»Ãá¡ÃÁµÍºÍÕàÁÅì¡ÅѺÍѵâ¹ÁÑµÔ ( Auto Responder ) à¾×èÍÈÖ¡ÉÒ¡Ò÷ӧҹ¢Í§ Transport Map áÅÐ master.cf
  • ½Ö¡»¯ÔºÑµÔ¡Òä͹¿Ô¡â»Ãá¡ÃÁ SpamAssassin ãËé·Ó§Ò¹ÃèÇÁ¡Ñº Postfix ¼èÒ¹¡ÒÃÊ×èÍÊÒÃẺ unix domain socket áÅÐÈÖ¡ÉÒ¡Òä͹¿Ô¡à¾×èÍ¡ÒáÓ˹´à§×è͹ä¢ã¹¡ÒÃÇÔà¤ÃÒÐËìÊá»Á ¡Òý֡ãËéÃÙé¨Ñ¡ÍÕàÁÅì·Õèà»ç¹Êá»ÁáÅСÒÃÊÃéÒ§ rule ¢Öé¹ãËÁè´éǵ¹àͧ
  • à·¤¹Ô¤¡ÒÃãªé§Ò¹áÅТÂÒ¢մ¤ÇÒÁÊÒÁÒö¢Í§ SpamAssassin ä´éá¡è ¡ÒÃÍѾഷ rule ¨Ò¡ÈÙ¹Âì¡ÅÒ§ ¡ÒáÃͧÊá»ÁẺ Distributed
  • ÈÖ¡ÉÒ¡ÒõԴµÑé§áÅÐãªé§Ò¹â»Ãá¡ÃÁ CliamAV ÃèÇÁ¡Ñº Postfix à¾×èÍ¡ÒáÃͧäÇÃÑÊ·ÕèṺÁҡѺÍÕàÁÅì
  • ½Ö¡»¯ÔºÑµÔ¡ÒõԴµÑé§áÅÐãªé§Ò¹â»á¡ÃÁÇÔà¤ÃÒÐËìáÅÐÃÒ§ҹ¡Ò÷ӧҹ¢Í§àÁÅìà«ÔÃì¿àÇÍÃì ¡ÒÃÇÔà¤ÃÒÐËì Log file ¡ÒÃÃÒ§ҹã¹ÃٻẺ¢Í§¡ÃÒ¿ ¡ÒèѴà¡çº¢éÍÁÙÅÂé͹ËÅѧ´éÇ RRDTool áÅСÒúÃÔËÒèѴ¡Òþ×é¹·Õè¨Ñ´à¡çº Log file ·ÕèÁÕ¤ÇÒÁàÃçÇÊÙ§áÅлéͧ¡Ñ¹»Ñ­ËÒ´ÔÊ¡ìàµçÁ


  • Part 4 : ¡ÒèѴÃкº·ÕèÃͧÃѺ»ÃÔÁÒ³§Ò¹ã¹Í§¤ì¡Ã¢¹Ò´ãË­è



  • á¹Ç¤Ô´ã¹¡ÒúÃÔËÒÃà¹×éÍ·Õè¨Ñ´à¡çº¢éÍÁÙÅ·ÕèÁÕ¡ÒèѴÊÃÃà»ç¹ÊÑ´Êèǹ ( Partitioning ) áÅÐ ¡ÒâÂÒÂÃкºà¾×èÍÃͧÃѺ¡ÒÃàµÔºâµã¹Í¹Ò¤µ
  • ½Ö¡»¯ÔºÑµÔ¡ÒèѴ¡ÒþÒÃì·ÔªÑè¹ãËéá¡è message store ä´éá¡è ¡ÒÃà¾ÔèÁ¾ÒÃì·ÔªÑè¹ ¡ÒÃÂéÒ¾ÒÃì·ÔªÑè¹ ¡ÒÃÂéÒÂàÁÅìºêÍ¡
  • ÈÖ¡ÉÒ¡ÒèѴÇÒ§ÃкºÊÓÃͧ¢Í§àÁÅìà«ÔÃì¿àÇÍÃì Backup MX ¤ÇÒÁà¡ÕèÂÇ¢éͧ¡ÑºÃкº DNS ÈÖ¡ÉÒ¤ÇÒÁᵡµèÒ§¢Í§¡Òà Relay Mail ã¹ÅѡɳеèÒ§æ
  • ½Ö¡»¯ÔºÑµÔ¡Òä͹¿Ô¡áÅкÃÔËÒèѴ¡ÒÃÃкºàÁÅìà«ÔÃì¿àÇÍÃì·Õèà»ç¹ Backup MX áÅÐ Relay Host
  • ½Ö¡»¯ÔºÑµÔ¡Òä͹¿Ô¡àÁÅìà«ÔÃì¿àÇÍÃì·ÕèµÔ´µÑé§ÍÂÙèÀÒÂãµéà¤Ã×Í¢èÒÂẺ DMZ
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