{"id":3637,"date":"2023-11-28T14:49:51","date_gmt":"2023-11-28T07:49:51","guid":{"rendered":"https:\/\/longvan.net\/cong-dong\/?p=3637"},"modified":"2023-11-28T14:49:51","modified_gmt":"2023-11-28T07:49:51","slug":"su-dung-csf-de-loc-ip-quoc-te-csf-allow-deny-theo-country","status":"publish","type":"post","link":"https:\/\/longvan.net\/cong-dong\/su-dung-csf-de-loc-ip-quoc-te-csf-allow-deny-theo-country\/","title":{"rendered":"S\u1eed d\u1ee5ng CSF \u0111\u1ec3 l\u1ecdc IP qu\u1ed1c t\u1ebf (CSF Allow\/Deny theo Country)"},"content":{"rendered":"<ol>\n<li><strong>B\u01b0\u1edbc 1<\/strong>: C\u00e0i \u0111\u1eb7t t\u01b0\u1eddng l\u1eeda v\u00e0 ki\u1ec3m tra ho\u1ea1t \u0111\u1ed9ng\n<ul>\n<li>Vi\u1ec7c \u0111\u1ea7u ti\u00ean, b\u1ea1n c\u1ea7n c\u00e0i \u0111\u1eb7t CSF v\u00e0o server (b\u1ea1n c\u00f3 th\u1ec3 l\u00e0m theo h\u01b0\u1edbng d\u1eabn <a href=\"https:\/\/longvan.net\/cong-dong\/huong-dan-cai-dat-cau-hinh-csf\/\">H\u01b0\u1edbng c\u00e0i \u0111\u1eb7t v\u00e0 c\u1ea5u h\u00ecnh CSF \u2013 Long V\u00e2n (longvan.net))<\/a><\/li>\n<li>Sau khi c\u00e0i \u0111\u1eb7t xong CSF b\u1ea1n <strong>stop v\u00e0 disable firewalld<\/strong> \u0111\u1ec3 tr\u00e1nh xung \u0111\u1ed9t v\u1edbi CSF, sau \u0111\u00f3 b\u1ea1n ki\u1ec3m tra status CSF \u0111\u00e3 active ch\u01b0a:<br \/><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3518 aligncenter\" src=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2023\/11\/z4860057205443_a554f240288e12e1bca610479501c519-e1700627791146.png\" alt=\"\" width=\"700\" height=\"145\" srcset=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2023\/11\/z4860057205443_a554f240288e12e1bca610479501c519-e1700627791146.png 733w, https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2023\/11\/z4860057205443_a554f240288e12e1bca610479501c519-e1700627791146-300x62.png 300w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><br \/><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3519 aligncenter\" src=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2023\/11\/z4860058591135_842c6bae8705325a873bae445ce582a3-e1700627847230.png\" alt=\"\" width=\"700\" height=\"147\" srcset=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2023\/11\/z4860058591135_842c6bae8705325a873bae445ce582a3-e1700627847230.png 979w, https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2023\/11\/z4860058591135_842c6bae8705325a873bae445ce582a3-e1700627847230-300x63.png 300w, https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2023\/11\/z4860058591135_842c6bae8705325a873bae445ce582a3-e1700627847230-768x161.png 768w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/li>\n<\/ul>\n<\/li>\n<li><strong>B\u01b0\u1edbc 2<\/strong>: Ki\u1ec3m tra k\u1ebft n\u1ed1i t\u1eeb qu\u1ed1c t\u1ebf. <br \/>Trong b\u00e0i h\u01b0\u1edbng d\u1eabn n\u00e0y, Long v\u00e2n s\u1ebd s\u1eed d\u1ee5ng s\u1eed d\u1ee5ng \u1ee9ng d\u1ee5ng <a href=\"https:\/\/check-host.net\/\">https:\/\/check-host.net\/<\/a>\u00a0 \u0111\u1ec3 ki\u1ec3m tra ping t\u1eeb nhi\u1ec1u ngu\u1ed3n.<br \/><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-3777 aligncenter\" src=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2023\/11\/Screenshot_1.png\" alt=\"\" width=\"733\" height=\"546\" srcset=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2023\/11\/Screenshot_1.png 733w, https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2023\/11\/Screenshot_1-300x223.png 300w\" sizes=\"auto, (max-width: 733px) 100vw, 733px\" \/><\/li>\n<li><strong>B\u01b0\u1edbc 3<\/strong>: C\u1ea5u h\u00ecnh CSF \u0111\u1ec3 ch\u1eb7n k\u1ebft n\u1ed1i qu\u1ed1c t\u1ebf:\n<ul>\n<li>M\u1edf file c\u1ea5u h\u00ecnh CSF v\u1edbi l\u1ec7nh\n<pre>vi \/etc\/csf\/csf.conf<\/pre>\n<\/li>\n<li>S\u1eed d\u1ee5ng l\u1ec7nh<strong> :set nu<\/strong> \u0111\u1ec3 hi\u1ec3n th\u1ecb th\u1ee9 t\u1ef1 d\u00f2ng.<\/li>\n<li>\u1ede d\u00f2ng 993 CC_DENY, b\u1ea1n c\u1ea5u h\u00ecnh ch\u1eb7n theo m\u00e3 qu\u1ed1c gia (b\u1ea1n tham kh\u1ea3o <a href=\"https:\/\/countrycode.org\/\">https:\/\/countrycode.org\/<\/a> l\u1ea5y m\u00e3 code 2 ch\u1eef s\u1ed1 nh\u00e9). \u0110\u1ec3 l\u00e0m nh\u01b0 v\u1eady nh\u1eadp country code v\u00e0o danh s\u00e1ch \u0111\u01b0\u1ee3c ph\u00e2n t\u00e1ch b\u1edfi d\u1ea5u ph\u1ea9y. \u1ede \u0111\u00e2y m\u00ecnh DENY c\u00e1c khu v\u1ef1c China, Australia, Jappan, Ukraine,\u00a0<span class=\"popover_action cursor-pointer border-dashed border-b border-gray-600\">Russia.<\/span><br \/><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3778 aligncenter\" src=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2023\/11\/z4920072243938_3e94590b02bfd6dfea6fbfed4d92f1ec-e1701157669707.png\" alt=\"\" width=\"670\" height=\"150\" srcset=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2023\/11\/z4920072243938_3e94590b02bfd6dfea6fbfed4d92f1ec-e1701157669707.png 683w, https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2023\/11\/z4920072243938_3e94590b02bfd6dfea6fbfed4d92f1ec-e1701157669707-300x67.png 300w\" sizes=\"auto, (max-width: 670px) 100vw, 670px\" \/><\/li>\n<li>T\u00ecm d\u00f2ng 1149 LF_SELECT = &#8220;0&#8221; \u0111\u1eb7t gi\u00e1 tr\u1ecb th\u00e0nh &#8220;1&#8221; \u0111\u1ec3 b\u1eadt ch\u1ee9c n\u0103ng l\u1ecdc \u0111\u1ecba ch\u1ec9 IP<br \/><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3779 aligncenter\" src=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2023\/11\/Screenshot_2.png\" alt=\"\" width=\"670\" height=\"176\" srcset=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2023\/11\/Screenshot_2.png 717w, https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2023\/11\/Screenshot_2-300x79.png 300w\" sizes=\"auto, (max-width: 670px) 100vw, 670px\" \/><\/li>\n<li>D\u00f2ng 830 LF_GLOBAL = &#8220;0&#8221; \u0111\u1eb7t gi\u00e1 tr\u1ecb th\u00e0nh &#8220;1&#8221; \u0111\u1ec3 \u00e1p d\u1ee5ng c\u00e1c quy t\u1eafc l\u1ecdc \u0111\u1ecba ch\u1ec9 IP cho t\u1ea5t c\u1ea3 \u0111\u1ecba ch\u1ec9 IP<br \/><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3781 aligncenter\" src=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2023\/11\/Screenshot_3.png\" alt=\"\" width=\"670\" height=\"130\" srcset=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2023\/11\/Screenshot_3.png 670w, https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2023\/11\/Screenshot_3-300x58.png 300w\" sizes=\"auto, (max-width: 670px) 100vw, 670px\" \/><\/li>\n<li>Ngo\u00e0i ra, b\u1ea1n ch\u1ec9nh gi\u00e1 tr\u1ecb \u1edf d\u00f2ng LF_IPSET \u0111\u1ec3 s\u1eed d\u1ee5ng ipsec n\u1ebfu c\u00f3 h\u1ed7 tr\u1ee3.<\/li>\n<li>\u00a0\u1ede d\u00f2ng 11 b\u1ea1n ch\u1ec9nh <strong>TESTING = \u201c0\u201d,<\/strong> save v\u00e0 kh\u1edfi \u0111\u1ed9ng l\u1ea1i CSF b\u1eb1ng 2 command sau\n<pre>chkconfig --level 235 csf on\n<\/pre>\n<pre>service csf restart<\/pre>\n<\/li>\n<\/ul>\n<\/li>\n<li><strong>B\u01b0\u1edbc 4<\/strong>: Ki\u1ec3m tra l\u1ea1i k\u1ebft n\u1ed1i\n<ul>\n<li>Nh\u01b0 \u1edf b\u01b0\u1edbc 1, b\u1ea1n ki\u1ec3m tra ping c\u00e1c khu v\u1ef1c b\u1ea1n \u0111\u00e3 conf tr\u01b0\u1edbc \u0111\u00f3<\/li>\n<li>\u0110\u00e2y l\u00e0 k\u1ebft qu\u1ea3 sau khi DENY c\u1ee7a m\u00ecnh<br \/><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-3791 aligncenter\" src=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2023\/11\/z4920069870198_a72ff5a1340722e6d4844bb786098696.jpg\" alt=\"\" width=\"762\" height=\"606\" srcset=\"https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2023\/11\/z4920069870198_a72ff5a1340722e6d4844bb786098696.jpg 762w, https:\/\/longvan.net\/cong-dong\/wp-content\/uploads\/2023\/11\/z4920069870198_a72ff5a1340722e6d4844bb786098696-300x239.jpg 300w\" sizes=\"auto, (max-width: 762px) 100vw, 762px\" \/><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>Nh\u01b0 v\u1eady, Long V\u00e2n \u0111\u00e3 ho\u00e0n th\u00e0nh h\u01b0\u1edbng d\u1eabn Qu\u00fd kh\u00e1ch c\u00e1ch c\u00e0i \u0111\u1eb7t v\u00e0 c\u1ea5u h\u00ecnh firewall CSF, ch\u00fac Qu\u00fd kh\u00e1ch th\u00e0nh c\u00f4ng !<\/p>\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>B\u01b0\u1edbc 1: C\u00e0i \u0111\u1eb7t t\u01b0\u1eddng l\u1eeda v\u00e0 ki\u1ec3m tra ho\u1ea1t \u0111\u1ed9ng Vi\u1ec7c \u0111\u1ea7u ti\u00ean, b\u1ea1n c\u1ea7n c\u00e0i \u0111\u1eb7t CSF v\u00e0o server (b\u1ea1n c\u00f3 th\u1ec3 l\u00e0m theo h\u01b0\u1edbng d\u1eabn H\u01b0\u1edbng c\u00e0i \u0111\u1eb7t v\u00e0 c\u1ea5u h\u00ecnh CSF \u2013 Long V\u00e2n (longvan.net)) Sau khi c\u00e0i \u0111\u1eb7t xong CSF b\u1ea1n stop v\u00e0 disable firewalld \u0111\u1ec3 tr\u00e1nh xung \u0111\u1ed9t v\u1edbi [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_oasis_is_in_workflow":0,"_oasis_original":0,"footnotes":""},"categories":[4],"tags":[228,259,38,5,260,261],"class_list":["post-3637","post","type-post","status-publish","format-standard","hentry","category-linux","tag-ddos","tag-filter-ip","tag-firewall","tag-linux","tag-loc-ip","tag-loc-ip-quoc-gia"],"_links":{"self":[{"href":"https:\/\/longvan.net\/cong-dong\/wp-json\/wp\/v2\/posts\/3637","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/longvan.net\/cong-dong\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/longvan.net\/cong-dong\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/longvan.net\/cong-dong\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/longvan.net\/cong-dong\/wp-json\/wp\/v2\/comments?post=3637"}],"version-history":[{"count":7,"href":"https:\/\/longvan.net\/cong-dong\/wp-json\/wp\/v2\/posts\/3637\/revisions"}],"predecessor-version":[{"id":3829,"href":"https:\/\/longvan.net\/cong-dong\/wp-json\/wp\/v2\/posts\/3637\/revisions\/3829"}],"wp:attachment":[{"href":"https:\/\/longvan.net\/cong-dong\/wp-json\/wp\/v2\/media?parent=3637"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/longvan.net\/cong-dong\/wp-json\/wp\/v2\/categories?post=3637"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/longvan.net\/cong-dong\/wp-json\/wp\/v2\/tags?post=3637"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}