{"id":19493,"date":"2017-04-06T06:10:40","date_gmt":"2017-04-05T22:10:40","guid":{"rendered":"https:\/\/2blog.ilc.edu.tw\/25793\/2017\/04\/06\/%e8%a7%a3%e6%b1%ba-openvas-%e6%8e%83%e6%8f%8f-linux-%e4%b8%bb%e6%a9%9f%e5%87%ba%e7%8f%be%e7%9a%84%e3%80%8ccheck-if-mailserver-answer-to-vrfy-and-expn-requestsd%e3%80%8d%e8%a8%8a%e6%81%af\/"},"modified":"2021-03-18T17:24:58","modified_gmt":"2021-03-18T09:24:58","slug":"%e8%a7%a3%e6%b1%ba-openvas-%e6%8e%83%e6%8f%8f-linux-%e4%b8%bb%e6%a9%9f%e5%87%ba%e7%8f%be%e7%9a%84%e3%80%8ccheck-if-mailserver-answer-to-vrfy-and-expn-requestsd%e3%80%8d%e8%a8%8a%e6%81%af","status":"publish","type":"post","link":"https:\/\/2blog.ilc.edu.tw\/25793\/2017\/04\/06\/%e8%a7%a3%e6%b1%ba-openvas-%e6%8e%83%e6%8f%8f-linux-%e4%b8%bb%e6%a9%9f%e5%87%ba%e7%8f%be%e7%9a%84%e3%80%8ccheck-if-mailserver-answer-to-vrfy-and-expn-requestsd%e3%80%8d%e8%a8%8a%e6%81%af\/","title":{"rendered":"\u89e3\u6c7a OpenVAS \u6383\u63cf Linux \u4e3b\u6a5f\u51fa\u73fe\u7684\u300cCheck if Mailserver answer to VRFY and EXPN requestsd\u300d\u8a0a\u606f"},"content":{"rendered":"<p>\u4f7f\u7528 OpenVAS \u6383\u63cf CentOS 7.x Linux \u4e3b\u6a5f\u6642\uff0c\u51fa\u73fe\u300c<span style=\"color: #0000ff\">Check if Mailserver answer to VRFY and EXPN requestsd<\/span>\u300d\u8a0a\u606f <br \/> <a id=\"res_3774907\" href=\"https:\/\/2blog.ilc.edu.tw\/wp-content\/uploads\/sites\/985\/25793\/25793-3774907.png\"> <img decoding=\"async\" src=\"https:\/\/2blog.ilc.edu.tw\/wp-content\/uploads\/sites\/985\/25793\/previews-med\/25793-3774907.png\" border=\"0\" alt=\"\" \/> <\/a> <\/p>\n<p># <span style=\"color: #ff0000\">telnet 127.0.0.1 25<\/span><br \/><span style=\"color: #0000ff\">Trying 127.0.0.1&#8230;<\/span><br \/><span style=\"color: #0000ff\">Connected to 127.0.0.1.<\/span><br \/><span style=\"color: #0000ff\">Escape character is &#8216;^]&#8217;.<\/span><br \/><span style=\"color: #0000ff\">220 localhost.localdomain ESMTP Postfix<\/span><br \/><span style=\"color: #ff0000\">VRFY<\/span><br \/><span style=\"color: #0000ff\">501 5.5.4 Syntax: VRFY address<\/span>[@more@]\u89e3\u6c7a\u65b9\u5f0f\uff1a<br \/>\u53c3\u8003\u7db2\u7ad9\uff1a<br \/><a href=\"https:\/\/groups.google.com\/forum\/#!topic\/macenterprise\/H096LLWBY0M\" target=\"_blank\" rel=\"noopener noreferrer\">Mail Server Security question &#8211; Google \u7db2\u4e0a\u8ad6\u58c7<\/a><\/p>\n<p>\u4fee\u6539<span style=\"color: #0000ff\"> \/etc\/postfix\/main.cf<\/span><br \/># <span style=\"color: #ff0000\">cp \/etc\/postfix\/main.cf \/etc\/postfix\/main.cf.$(date +%F)<\/span><br \/># <span style=\"color: #ff0000\">vim \/etc\/postfix\/main.cf<\/span><br \/>\u52a0\u5165\u4e0b\u9762\u4e00\u884c<br \/><span style=\"color: #0000ff\">disable_vrfy_command=yes<\/span><\/p>\n<p>\u6e2c\u8a66\u4e00\u4e0b<br \/># <span style=\"color: #ff0000\">telnet 127.0.0.1 25<\/span><br \/><span style=\"color: #0000ff\">Trying 127.0.0.1&#8230;<\/span><br \/><span style=\"color: #0000ff\">Connected to 127.0.0.1.<\/span><br \/><span style=\"color: #0000ff\">Escape character is &#8216;^]&#8217;.<\/span><br \/><span style=\"color: #0000ff\">220 localhost.localdomain ESMTP Postfix<\/span><br \/><span style=\"color: #ff0000\">VRFY<\/span><br \/><span style=\"color: #0000ff\">502 5.5.1 VRFY command is disabled<\/span><\/p>\n<p>\u91cd\u65b0\u555f\u52d5 Postfix <br \/># <span style=\"color: #ff0000\">systemctl restart postfix.service;systemctl status postfix.service<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528 OpenVAS \u6383\u63cf CentOS 7.x Linux \u4e3b\u6a5f\u6642\uff0c\u51fa\u73fe\u300cCheck if Mailserv &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/2blog.ilc.edu.tw\/25793\/2017\/04\/06\/%e8%a7%a3%e6%b1%ba-openvas-%e6%8e%83%e6%8f%8f-linux-%e4%b8%bb%e6%a9%9f%e5%87%ba%e7%8f%be%e7%9a%84%e3%80%8ccheck-if-mailserver-answer-to-vrfy-and-expn-requestsd%e3%80%8d%e8%a8%8a%e6%81%af\/\" class=\"more-link\">\u95b1\u8b80\u5168\u6587<span class=\"screen-reader-text\">\u3008\u89e3\u6c7a OpenVAS \u6383\u63cf Linux \u4e3b\u6a5f\u51fa\u73fe\u7684\u300cCheck if Mailserver answer to VRFY and EXPN requestsd\u300d\u8a0a\u606f\u3009<\/span><\/a><\/p>\n","protected":false},"author":55,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[193],"tags":[],"class_list":["post-19493","post","type-post","status-publish","format-standard","hentry","category-c-105012"],"meta_key":{"_pingme":["1"],"_encloseme":["1"],"lt_post_id":["685683"]},"_links":{"self":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/posts\/19493"}],"collection":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/users\/55"}],"replies":[{"embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/comments?post=19493"}],"version-history":[{"count":1,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/posts\/19493\/revisions"}],"predecessor-version":[{"id":21010,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/posts\/19493\/revisions\/21010"}],"wp:attachment":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/media?parent=19493"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/categories?post=19493"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/tags?post=19493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}