{"id":67,"date":"2015-05-26T23:49:07","date_gmt":"2015-05-26T23:49:07","guid":{"rendered":"http:\/\/www.smtp-server.net\/?p=67"},"modified":"2015-05-04T19:57:28","modified_gmt":"2015-05-04T19:57:28","slug":"anonymni-server-smtp-pro-zabezpeceni-serveru-windows-exchange","status":"publish","type":"post","link":"https:\/\/www.smtp-server.net\/cs\/anonymni-server-smtp-pro-zabezpeceni-serveru-windows-exchange\/","title":{"rendered":"Anonymn\u00ed server SMTP - Zabezpe\u010den\u00ed serveru Windows Exchange"},"content":{"rendered":"<div style=\"float:left\">https:\/\/youtube.com\/watch?v=Iv53xjMvEY4<\/div>\n<p>A\u010dkoli \u00fapln\u00e9 zabezpe\u010den\u00ed v dne\u0161n\u00ed dob\u011b neexistuje kv\u016fli neust\u00e1l\u00fdm hrozb\u00e1m, kter\u00e9 se denn\u011b objevuj\u00ed v podob\u011b \u0161kodliv\u00fdch program\u00e1tor\u016f a hacker\u016f, lze vytvo\u0159it bezpe\u010dnostn\u00ed protokoly, kter\u00e9 udr\u017e\u00ed vysokou \u00farove\u0148 zabezpe\u010den\u00ed v\u00fdm\u011bny.<\/p>\n<p><!--more--><\/p>\n<p>Existuje n\u011bkolik zp\u016fsob\u016f, jak zabezpe\u010dit syst\u00e9m Windows Exchange. Virtu\u00e1ln\u00ed servery SMTP jsou obvykle neviditeln\u00e9 a nep\u0159\u00edstupn\u00e9 \u0161irok\u00e9 ve\u0159ejnosti, jinak ozna\u010dovan\u00e9 jako neautorizovan\u00ed u\u017eivatel\u00e9. V\u00fdchoz\u00ed omezen\u00ed relay neumo\u017e\u0148uj\u00ed u\u017eivatel\u016fm odes\u00edlat po\u0161tu do extern\u00edch m\u00edst pomoc\u00ed serveru Exchange.<\/p>\n<p>N\u011bkdy m\u00e1 u\u017eivatel tendenci m\u011bnit omezen\u00ed, kter\u00e1 umo\u017e\u0148uj\u00ed pou\u017eit\u00ed serveru Exchange k rozes\u00edl\u00e1n\u00ed spamu. Jin\u00fdmi slovy, pokud je server otev\u0159en\u00fd pro relay, mohou neopr\u00e1vn\u011bn\u00ed u\u017eivatel\u00e9 pou\u017e\u00edvat v\u00e1\u0161 server k odes\u00edl\u00e1n\u00ed e-mail\u016f ostatn\u00edm, co\u017e zvy\u0161uje viditelnost a ozna\u010den\u00ed serveru jako otev\u0159en\u00e9ho relay. N\u011bkdy se kontrola relay a relaying zam\u011b\u0148uje se spamem; spr\u00e1vce mus\u00ed pochopit, \u017ee relay neblokuje spam.<\/p>\n<p>Anonymn\u00ed p\u0159\u00edstup k intern\u00edmu serveru SMTP a vyhrazen\u00fdm server\u016fm SMTP mus\u00ed b\u00fdt pro klienty IMAP a POP zak\u00e1z\u00e1n. U obecn\u00fdch server\u016f Simple Mail Transfer Protocol nen\u00ed t\u0159eba anonymn\u00edmu p\u0159\u00edstupu br\u00e1nit, proto\u017ee autoriza\u010dn\u00ed protokoly existuj\u00ed ve v\u00fdchoz\u00edm nastaven\u00ed.<\/p>\n<p>Servery Exchange jsou navr\u017eeny tak, aby automaticky ov\u011b\u0159ovaly a poskytovaly p\u0159\u00edstup k e-mail\u016fm a intern\u00ed komunikaci. Zabra\u0148uj\u00ed neopr\u00e1vn\u011bn\u00e9mu p\u0159\u00edstupu a zaji\u0161\u0165uj\u00ed, aby nebyl naru\u0161en tok po\u0161ty. To poskytuje virtu\u00e1ln\u00edmu serveru SMTP dodate\u010dnou s\u00edlu nebo zabezpe\u010den\u00ed.<\/p>\n<p>Omezen\u00ed odes\u00edl\u00e1n\u00ed po\u0161ty, zpr\u00e1v a soubor\u016f a p\u0159ed\u00e1v\u00e1n\u00ed p\u0159\u00edstupu na intern\u00ed servery SMTP by tak\u00e9 mohlo pomoci zv\u00fd\u0161it \u00farove\u0148 zabezpe\u010den\u00ed. Standardn\u00ed server Windows 2000 nebo Windows 2003 Discretionary Access Control List v\u00e1m pom\u016f\u017ee poskytnout explicitn\u00ed opr\u00e1vn\u011bn\u00ed u\u017eivatel\u016fm a skupin\u00e1m pro p\u0159\u00edstup k server\u016fm.<\/p>\n<p>U server\u016f, kter\u00e9 maj\u00ed p\u0159ij\u00edmat po\u0161tu z internetu, je nutn\u00e9 ponechat anonymn\u00ed p\u0159\u00edjem po\u0161ty, ale s dodate\u010dn\u00fdm zabezpe\u010den\u00edm. T\u00edm je zaji\u0161t\u011bno, \u017ee po\u0161ta z r\u016fzn\u00fdch server\u016f a od r\u016fzn\u00fdch poskytovatel\u016f po\u0161tovn\u00edch slu\u017eeb m\u016f\u017ee b\u00fdt st\u00e1le p\u0159ij\u00edm\u00e1na p\u0159i zachov\u00e1n\u00ed dobr\u00e9 \u00farovn\u011b zabezpe\u010den\u00ed v syst\u00e9mu Exchange.<\/p>","protected":false},"excerpt":{"rendered":"<p>A\u010dkoli \u00fapln\u00e9 zabezpe\u010den\u00ed v dne\u0161n\u00ed dob\u011b neexistuje kv\u016fli neust\u00e1l\u00fdm hrozb\u00e1m, kter\u00e9 se denn\u011b objevuj\u00ed v podob\u011b \u0161kodliv\u00fdch program\u00e1tor\u016f a hacker\u016f, lze vytvo\u0159it bezpe\u010dnostn\u00ed protokoly, kter\u00e9 udr\u017e\u00ed vysokou \u00farove\u0148 zabezpe\u010den\u00ed v\u00fdm\u011bny.<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-67","post","type-post","status-publish","format-standard","hentry","category-smtp-servers"],"_links":{"self":[{"href":"https:\/\/www.smtp-server.net\/cs\/wp-json\/wp\/v2\/posts\/67","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.smtp-server.net\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.smtp-server.net\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.smtp-server.net\/cs\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.smtp-server.net\/cs\/wp-json\/wp\/v2\/comments?post=67"}],"version-history":[{"count":1,"href":"https:\/\/www.smtp-server.net\/cs\/wp-json\/wp\/v2\/posts\/67\/revisions"}],"predecessor-version":[{"id":68,"href":"https:\/\/www.smtp-server.net\/cs\/wp-json\/wp\/v2\/posts\/67\/revisions\/68"}],"wp:attachment":[{"href":"https:\/\/www.smtp-server.net\/cs\/wp-json\/wp\/v2\/media?parent=67"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.smtp-server.net\/cs\/wp-json\/wp\/v2\/categories?post=67"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.smtp-server.net\/cs\/wp-json\/wp\/v2\/tags?post=67"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}