{"id":3781,"date":"2018-08-21T23:38:39","date_gmt":"2018-08-21T16:38:39","guid":{"rendered":"https:\/\/www.engisv.info\/?p=3781"},"modified":"2018-08-23T14:01:29","modified_gmt":"2018-08-23T07:01:29","slug":"trien-khai-dich-vu-dhcp-tren-centos-7","status":"publish","type":"post","link":"https:\/\/www.engisv.info\/?p=3781","title":{"rendered":"Tri\u1ec3n khai d\u1ecbch v\u1ee5 DHCP tr\u00ean CentOS 7"},"content":{"rendered":"<p>D\u1ecbch v\u1ee5 DHCP l\u00e0 m\u1ed9t trong nh\u1eefng dich v\u1ee5 quan tr\u1ecdng c\u1ee7a h\u1ec7 th\u1ed1ng m\u1ea1ng. D\u1ecbch v\u1ee5 n\u00e0y c\u00f3 th\u1ec3 <a href=\"https:\/\/www.engisv.info\/?p=3262\" target=\"_blank\" rel=\"noopener\">tri\u1ec3n khai tr\u00ean Windows<\/a>, Firewall ho\u1eb7c l\u00e0 c\u00e1c thi\u1ebft b\u1ecb c\u00f3 h\u1ed7 tr\u1ee3 d\u1ecbch v\u1ee5. Trong b\u00e0i n\u00e0y ch\u00fang ta s\u1ebd ti\u1ebfn h\u00e0nh tri\u1ec3n khai d\u1ecbch v\u1ee5 DHCP tr\u00ean CentOS 7.<\/p>\n<p>M\u00f4 h\u00ecnh tri\u1ec3n khai d\u1ecbch v\u1ee5 nh\u01b0 sau:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-3784 \" src=\"https:\/\/www.engisv.info\/wp-content\/uploads\/2018\/08\/Mo-hinh-dhcp-centos.png\" alt=\"\" width=\"411\" height=\"312\" srcset=\"https:\/\/www.engisv.info\/wp-content\/uploads\/2018\/08\/Mo-hinh-dhcp-centos.png 638w, https:\/\/www.engisv.info\/wp-content\/uploads\/2018\/08\/Mo-hinh-dhcp-centos-300x228.png 300w\" sizes=\"auto, (max-width: 411px) 100vw, 411px\" \/><\/p>\n<p>DNS server, b\u1ea1n c\u00f3 th\u1ec3 tri\u1ec3n khai v\u1edbi tr\u00ean <a href=\"https:\/\/www.engisv.info\/?p=250\" target=\"_blank\" rel=\"noopener\">CentOS<\/a> ho\u1eb7c tr\u00ean <a href=\"https:\/\/www.engisv.info\/?p=294\" target=\"_blank\" rel=\"noopener\">Windows<\/a>. N\u1ebfu c\u1ea7n thi\u1ebft b\u1ea1n c\u00f3 th\u1ec3 tri\u1ec3n khai m\u1ed9t <a href=\"https:\/\/www.engisv.info\/?p=88\" target=\"_blank\" rel=\"noopener\">Domain Controller tr\u00ean Windows<\/a>. Vi\u1ec7c tri\u1ec3n khai DHCP tr\u00ean CentOS 7 kh\u00e1 \u0111\u01a1n gi\u1ea3n.<\/p>\n<p>M\u00e1y DHCP Server ch\u1ea1y CentOS v\u00e0 <a href=\"https:\/\/www.engisv.info\/?p=217\" target=\"_blank\" rel=\"noopener\">\u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp IP<\/a> nh\u01b0 m\u00f4 h\u00ecnh, \u0111\u1ea3m b\u1ea3o truy c\u1eadp \u0111\u01b0\u1ee3c internet.<\/p>\n<p>C\u00e0i \u0111\u1eb7t g\u00f3i d\u1ecbch v\u1ee5 b\u1eb1ng l\u1ec7nh:<\/p>\n<ul>\n<li><em><strong>yum -y install dhcp<\/strong><\/em><\/li>\n<\/ul>\n<p>C\u1ea5u h\u00ecnh d\u1ecbch v\u1ee5 b\u1eb1ng l\u1ec7nh:<\/p>\n<ul>\n<li><em><strong>vim \/etc\/dhcp\/dhcpd.conf<\/strong><\/em><\/li>\n<\/ul>\n<p>Ti\u00eap theo t\u1ea1o n\u1ed9i dung nh\u01b0 sau:<\/p>\n<p style=\"padding-left: 30px;\"><em>option domain-name &#8220;[T\u00ean Domain]&#8221;;<\/em><\/p>\n<p style=\"padding-left: 30px;\"><em>option domain-name-servers [T\u00ean \u0111\u1ea7y \u0111\u1ee7 c\u1ee7a DNS server];<\/em><\/p>\n<p style=\"padding-left: 30px;\"><em>default-lease-time [Th\u1eddi gian t\u1ed3n t\u1ea1i c\u1ee7a m\u1ed9t IP \u0111\u01b0\u1ee3c c\u1ea5p ph\u00e1t, t\u00ednh b\u1eb1ng gi\u00e2y];<\/em><\/p>\n<p style=\"padding-left: 30px;\"><em>max-lease-time [Th\u1eddi gian t\u1ed3n t\u1ea1i t\u1ed1i \u0111a c\u1ee7a m\u1ed9t IP \u0111\u01b0\u1ee3c c\u1ea5p ph\u00e1t, t\u00ednh b\u1eb1ng gi\u00e2y];<\/em><\/p>\n<p style=\"padding-left: 30px;\"><em>authoritative;<\/em><\/p>\n<p style=\"padding-left: 30px;\"><em>subnet [\u0110\u1ecba ch\u1ec9 l\u1edbp m\u1ea1ng c\u1ee7a d\u00e3y IP c\u1ea5p ph\u00e1t] netmask [subnet mark d\u00e3y IP c\u1ea5p ph\u00e1t]<\/em><\/p>\n<p style=\"padding-left: 60px;\"><em> {<\/em><\/p>\n<p style=\"padding-left: 60px;\"><em>range dynamic-bootp [ IP b\u1eaft \u0111\u1ea7u] [IP k\u1ebft th\u00fac];<\/em><\/p>\n<p style=\"padding-left: 60px;\"><em>option broadcast-address [\u0110\u1ecba ch\u1ec9 broadcast c\u1ee7a l\u1edbp IP];<\/em><\/p>\n<p style=\"padding-left: 60px;\"><em>option routers [\u0111\u1ecba ch\u1ec9 Default gateway];<\/em><\/p>\n<p style=\"padding-left: 60px;\"><em>}<\/em><\/p>\n<p>Sau khi c\u1ea5u h\u00ecnh xong cho d\u1ecbch v\u1ee5, b\u1ea1n ti\u1ebfn h\u00e0nh kh\u1edfi \u0111\u1ed9ng d\u1ecbch v\u1ee5 v\u00e0 cho ph\u00e9p d\u1ecbch v\u1ee5 kh\u1edfi \u0111\u1ed9ng c\u00f9ng h\u1ec7 th\u1ed1ng:<\/p>\n<ul>\n<li><em><strong>systemctl start dhcpd<\/strong><\/em><\/li>\n<li><em><strong>systemctl enable dhcpd<\/strong><\/em><\/li>\n<\/ul>\n<p>\u0110\u1ec3 Client c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng d\u1ecbch v\u1ee5, b\u1ea1n c\u1ea7n m\u1edf t\u01b0\u1eddng l\u1eeda tr\u00ean CentOS:<\/p>\n<ul>\n<li><em><strong>firewall-cmd &#8211;add-service=dhcp &#8211;permanent<\/strong><\/em><\/li>\n<li><em><strong>firewall-cmd &#8211;reload<\/strong><\/em><\/li>\n<\/ul>\n<p>B\u1ea1n c\u00f3 th\u1ec3 xem c\u1ea5u h\u00ecnh m\u1eabu b\u00ean d\u01b0\u1edbi, trong h\u1ec7 th\u1ed1ng m\u1ea1ng c\u00f3 tri\u1ec3n khai DNS server, n\u00ean \u1edf \u0111\u00e2y\u00a0<em><strong>option domain-name<\/strong>\u00a0<\/em>v\u00e0\u00a0<strong><em>option domain-name-servers<\/em><\/strong>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3785 aligncenter\" src=\"https:\/\/www.engisv.info\/wp-content\/uploads\/2018\/08\/dhcp-centos-01.png\" alt=\"\" width=\"394\" height=\"186\" srcset=\"https:\/\/www.engisv.info\/wp-content\/uploads\/2018\/08\/dhcp-centos-01.png 506w, https:\/\/www.engisv.info\/wp-content\/uploads\/2018\/08\/dhcp-centos-01-300x142.png 300w\" sizes=\"auto, (max-width: 394px) 100vw, 394px\" \/><\/p>\n<p>Th\u00f4ng tin IP \u1edf client s\u1ebd \u0111\u01b0\u1ee3c c\u1ea5p nh\u01b0 sau:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3786 aligncenter\" src=\"https:\/\/www.engisv.info\/wp-content\/uploads\/2018\/08\/dhcp-centos-03.png\" alt=\"\" width=\"479\" height=\"143\" srcset=\"https:\/\/www.engisv.info\/wp-content\/uploads\/2018\/08\/dhcp-centos-03.png 629w, https:\/\/www.engisv.info\/wp-content\/uploads\/2018\/08\/dhcp-centos-03-300x90.png 300w\" sizes=\"auto, (max-width: 479px) 100vw, 479px\" \/><\/p>\n<p>Trong tr\u01b0\u1eddng h\u1ee3p b\u1ea1n kh\u00f4ng c\u00f3 DNS server trong h\u1ec7 th\u1ed1ng m\u1ea1ng, b\u1ea1n c\u00f3 th\u1ec3 \u0111i\u1ec1n th\u00f4ng tin v\u00e0o\u00a0<strong><em>option domain-name-servers<\/em><\/strong><em>\u00a0<\/em>v\u1edbi \u0111\u1ecba ch\u1ec9 DNS server ngo\u00e0i internet, \u1edf \u0111\u00e2y l\u00e0 8.8.8.8.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3788 aligncenter\" src=\"https:\/\/www.engisv.info\/wp-content\/uploads\/2018\/08\/dhcp-centos-02.png\" alt=\"\" width=\"394\" height=\"184\" srcset=\"https:\/\/www.engisv.info\/wp-content\/uploads\/2018\/08\/dhcp-centos-02.png 497w, https:\/\/www.engisv.info\/wp-content\/uploads\/2018\/08\/dhcp-centos-02-300x140.png 300w\" sizes=\"auto, (max-width: 394px) 100vw, 394px\" \/><\/p>\n<p>Th\u00f4ng tin IP \u1edf client s\u1ebd hi\u1ec3n th\u1ecb nh\u01b0 sau:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3789 aligncenter\" src=\"https:\/\/www.engisv.info\/wp-content\/uploads\/2018\/08\/dhcp-centos-04.png\" alt=\"\" width=\"519\" height=\"158\" srcset=\"https:\/\/www.engisv.info\/wp-content\/uploads\/2018\/08\/dhcp-centos-04.png 637w, https:\/\/www.engisv.info\/wp-content\/uploads\/2018\/08\/dhcp-centos-04-300x91.png 300w\" sizes=\"auto, (max-width: 519px) 100vw, 519px\" \/><\/p>\n<p>\u1ede trong file c\u1ea5u h\u00ecnh b\u1ea1n s\u1ebd th\u1ea5y d\u00f2ng\u00a0<strong><em>range dynamic-bootp<\/em><\/strong>, \u1edf d\u00f2ng n\u00e0y b\u1ea1n kh\u00f4ng c\u1ea7n\u00a0<strong><em>dynamic-bootp<\/em><\/strong> trong tr\u01b0\u1eddng h\u1ed9p trong h\u1ec7 th\u1ed1ng m\u1ea1ng kh\u00f4ng c\u00f3 thi\u1ebft b\u1ecb n\u00e0o c\u1ea7n s\u1eed d\u1ee5ng \u0111\u1ebfn BOOTP.<\/p>\n<p>B\u1ea1n c\u00f3 th\u1ec3 xem file c\u1ea5u h\u00ecnh m\u1eabu b\u1eb1ng l\u1ec7nh:<\/p>\n<ul>\n<li><em><strong>vim \/usr\/share\/doc\/dhcp*\/dhcpd.conf.example<\/strong><\/em><\/li>\n<\/ul>\n<p>Trong \u0111\u00f3 * ch\u00ednh l\u00e0 phi\u00ean b\u1ea3n c\u1ee7a d\u1ecbch v\u1ee5 DHCP.<\/p>\n<p>Ngo\u00e0i ra, \u0111\u1ec3 \u0111\u01a1n gi\u1ea3n trong vi\u1ec7c s\u1eeda file c\u1ea5u h\u00ecnh, b\u1ea1n c\u00f3 th\u1ec3 copy file n\u00e0y ghi \u0111\u00e8 l\u00ean file \/etc\/dhcp\/dhcpd.conf:<\/p>\n<ul>\n<li><em><strong>cp \/usr\/share\/doc\/dhcp*\/dhcpd.conf.example\u00a0\/etc\/dhcp\/dhcpd.conf<\/strong><\/em><\/li>\n<\/ul>\n<p>Khi copy, CentOS s\u1ebd h\u1ecfi b\u1ea1n c\u00f3 mu\u1ed1n ghi \u0111\u00e8 file kh\u00f4ng, b\u1ea1n nh\u1ea5n <strong>Y<\/strong> v\u00e0 <strong>Enter<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>D\u1ecbch v\u1ee5 DHCP l\u00e0 m\u1ed9t trong nh\u1eefng dich v\u1ee5 quan tr\u1ecdng c\u1ee7a h\u1ec7 th\u1ed1ng m\u1ea1ng. D\u1ecbch v\u1ee5 n\u00e0y c\u00f3 th\u1ec3 tri\u1ec3n khai tr\u00ean Windows, Firewall ho\u1eb7c l\u00e0 c\u00e1c thi\u1ebft b\u1ecb c\u00f3 h\u1ed7 tr\u1ee3 d\u1ecbch v\u1ee5. Trong b\u00e0i n\u00e0y ch\u00fang ta s\u1ebd ti\u1ebfn h\u00e0nh tri\u1ec3n khai d\u1ecbch v\u1ee5 DHCP tr\u00ean CentOS 7. M\u00f4 h\u00ecnh tri\u1ec3n khai d\u1ecbch v\u1ee5 nh\u01b0 sau: DNS server, b\u1ea1n c\u00f3 th\u1ec3 tri\u1ec3n khai v\u1edbi tr\u00ean CentOS ho\u1eb7c tr\u00ean Windows. N\u1ebfu c\u1ea7n thi\u1ebft b\u1ea1n c\u00f3 th\u1ec3 tri\u1ec3n khai m\u1ed9t Domain Controller tr\u00ean Windows. Vi\u1ec7c tri\u1ec3n khai DHCP tr\u00ean&hellip;<\/p>\n","protected":false},"author":2,"featured_media":3263,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"footnotes":""},"categories":[4,8],"tags":[31,33],"class_list":["post-3781","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mang","category-ma-nguon-mo-mang","tag-centos","tag-dhcp"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Tri\u1ec3n khai d\u1ecbch v\u1ee5 DHCP tr\u00ean CentOS 7 - EngISV<\/title>\n<meta name=\"description\" content=\"D\u1ecbch v\u1ee5 DHCP l\u00e0 m\u1ed9t trong nh\u1eefng dich v\u1ee5 quan tr\u1ecdng c\u1ee7a h\u1ec7 th\u1ed1ng m\u1ea1ng. D\u1ecbch v\u1ee5 n\u00e0y c\u00f3 th\u1ec3 tri\u1ec3n khai tr\u00ean Windows, Firewall ho\u1eb7c l\u00e0 c\u00e1c thi\u1ebft b\u1ecb c\u00f3 h\u1ed7 tr\u1ee3 d\u1ecbch v\u1ee5. Trong b\u00e0i n\u00e0y ch\u00fang ta s\u1ebd ti\u1ebfn h\u00e0nh tri\u1ec3n khai d\u1ecbch v\u1ee5 DHCP tr\u00ean CentOS 7.\" \/>\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.engisv.info\/?p=3781\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tri\u1ec3n khai d\u1ecbch v\u1ee5 DHCP tr\u00ean CentOS 7 - EngISV\" \/>\n<meta property=\"og:description\" content=\"D\u1ecbch v\u1ee5 DHCP l\u00e0 m\u1ed9t trong nh\u1eefng dich v\u1ee5 quan tr\u1ecdng c\u1ee7a h\u1ec7 th\u1ed1ng m\u1ea1ng. D\u1ecbch v\u1ee5 n\u00e0y c\u00f3 th\u1ec3 tri\u1ec3n khai tr\u00ean Windows, Firewall ho\u1eb7c l\u00e0 c\u00e1c thi\u1ebft b\u1ecb c\u00f3 h\u1ed7 tr\u1ee3 d\u1ecbch v\u1ee5. 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