{"id":944,"date":"2022-09-09T17:00:45","date_gmt":"2022-09-09T17:00:45","guid":{"rendered":"https:\/\/sunucucozumleri.com\/?p=944"},"modified":"2024-02-10T01:33:17","modified_gmt":"2024-02-09T22:33:17","slug":"linux-centos-ntp-server-kurulum-ve-ayarlari","status":"publish","type":"post","link":"https:\/\/sunucucozumleri.com\/blog\/linux-centos-ntp-server-kurulum-ve-ayarlari\/","title":{"rendered":"Linux CentOS NTP Server Kurulum ve Ayarlar\u0131"},"content":{"rendered":"<p>A\u011f Zaman Protokol\u00fc &#8211; NTP &#8211; Aktar\u0131m Katman\u0131&#8217;nda 123 UDP ba\u011flant\u0131 noktas\u0131 \u00fczerinden \u00e7al\u0131\u015fan ve bilgisayarlar\u0131n a\u011flar \u00fczerinden zaman\u0131 do\u011fru bir \u015fekilde senkronize etmesine izin veren bir protokold\u00fcr. Zaman ge\u00e7tik\u00e7e, bilgisayarlar\u0131n i\u00e7 saatleri kayma e\u011filimi g\u00f6sterir, bu da \u00f6zellikle sunucular ve istemciler g\u00fcnl\u00fck dosyalar\u0131nda veya <a href=\"https:\/\/sunucucozumleri.com\/blog\/frontpage\/\">sunucu<\/a> kaynaklar\u0131n\u0131 veya veritabanlar\u0131n\u0131 \u00e7o\u011faltmak istiyorsan\u0131z tutars\u0131z zaman sorunlar\u0131na yol a\u00e7abilir.<\/p>\n<p>Bu Makalemizde, NTP sunucusunu CentOS \/ RHEL 7&#8217;ye nas\u0131l kurabilece\u011finizi ve yap\u0131land\u0131rabilece\u011finizi ve zaman\u0131 NTP Ortak Havuz Zaman Sunucular\u0131 listesini kullanarak sunucu konumunuz i\u00e7in mevcut olan en yak\u0131n co\u011frafi e\u015flerle otomatik olarak senkronize edebilece\u011finizi anlataca\u011f\u0131z.<\/p>\n<p>1.\u00a0NTP sunucu paketi varsay\u0131lan olarak resmi\u00a0CentOS\u00a0\/\u00a0RHEL 7\u00a0depolar\u0131ndan sa\u011flan\u0131r ve a\u015fa\u011f\u0131daki komut verilerek kurulabilir.<\/p>\n<pre class=\"language-markup\"><code>yum -y install ntp<\/code><\/pre>\n<p>&nbsp;<\/p>\n<p>2.\u00a0\u0130lgili paket kurulduktan sonra, resmi\u00a0<a href=\"https:\/\/www.ntppool.org\/tr\/zone\/tr\" target=\"_blank\" rel=\"nofollow noopener\">NTP Ortak Havuz Zaman Sunucular\u0131&#8217;na gidin<\/a>\u00a0,\u00a0sunucunuzun fiziksel olarak bulundu\u011fu\u00a0K\u0131ta\u00a0b\u00f6lgenizi\u00a0se\u00e7in\u00a0, ard\u0131ndan\u00a0\u00dclke\u00a0konumunuzu\u00a0aray\u0131n\u00a0ve bir NTP sunucular\u0131 listesini kopyalamal\u0131s\u0131n\u0131z.<\/p>\n<p>&nbsp;<\/p>\n<p>3.\u00a0Ayr\u0131ca, a\u011flar\u0131n\u0131zdaki istemcilerin bu sunucu ile zaman\u0131 senkronize etmelerine izin vermeniz gerekir.\u00a0Bunu yapmak i\u00e7in, NTP yap\u0131land\u0131rma dosyas\u0131na a\u015fa\u011f\u0131daki sat\u0131r\u0131 ekleyin; burada\u00a0limit\u00a0ifadesi denetimleri, hangi a\u011f\u0131n zaman sorgulamas\u0131na ve senkronize edilmesine izin verilir &#8211; a\u011f IP&#8217;lerini uygun \u015fekilde de\u011fi\u015ftirin.<\/p>\n<pre class=\"language-markup\"><code>restrict 192.168.1.0 netmask 255.255.255.0 nomodify notrap\r\n<\/code><\/pre>\n<p>&nbsp;<\/p>\n<p>4.\u00a0NTP servisinde sorun olmas\u0131 durumunda sorun giderme i\u00e7in ek bilgiye ihtiyac\u0131n\u0131z varsa, t\u00fcm NTP sunucusu sorunlar\u0131n\u0131 tek bir \u00f6zel g\u00fcnl\u00fck dosyas\u0131na kaydedecek bir g\u00fcnl\u00fck dosyas\u0131 (\/etc\/ntp.conf) ekleyin.<\/p>\n<pre class=\"language-markup\"><code>logfile \/var\/log\/ntp.log<\/code><\/pre>\n<p>&nbsp;<\/p>\n<p>5.\u00a0Dosyay\u0131 d\u00fczenledikten sonra yukar\u0131da a\u00e7\u0131klanan t\u00fcm yap\u0131land\u0131rmayla\u00a0ntp.conf\u00a0dosyas\u0131n\u0131\u00a0kaydedin ve kapat\u0131n\u00a0.\u00a0Son yap\u0131land\u0131rman\u0131z a\u015fa\u011f\u0131daki ekran g\u00f6r\u00fcnt\u00fcs\u00fcnde g\u00f6r\u00fcnmelidir.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Makale \u0130\u00e7eri\u011fi<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"\u0130\u00e7indekiler Tablosunu A\u00e7\/Kapat\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/sunucucozumleri.com\/blog\/linux-centos-ntp-server-kurulum-ve-ayarlari\/#Adim_2_Guvenlik_Duvari_Kurallari_Ekleme_ve_NTP_Servisini_Baslatma\" >Ad\u0131m 2: G\u00fcvenlik Duvar\u0131 Kurallar\u0131 Ekleme ve NTP Servisini Ba\u015flatma<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/sunucucozumleri.com\/blog\/linux-centos-ntp-server-kurulum-ve-ayarlari\/#3_Adim_Sunucu_Zaman_Senkronizasyonunu_Dogrulayin\" >3. Ad\u0131m: Sunucu Zaman Senkronizasyonunu Do\u011frulay\u0131n<\/a><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"Adim_2_Guvenlik_Duvari_Kurallari_Ekleme_ve_NTP_Servisini_Baslatma\"><\/span>Ad\u0131m 2: G\u00fcvenlik Duvar\u0131 Kurallar\u0131 Ekleme ve NTP Servisini Ba\u015flatma<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&nbsp;<\/p>\n<p>6.\u00a0NTP hizmeti\u00a0aktar\u0131m katman\u0131nda (katman 4)\u00a0UDP ba\u011flant\u0131 noktas\u0131\u00a0123&#8217;\u00fc\u00a0kullan\u0131r\u00a0.\u00a0\u00d6zellikle de\u011fi\u015fken gecikmenin (titre\u015fim) etkilerine dayanacak \u015fekilde tasarlanm\u0131\u015ft\u0131r.\u00a0Bu ba\u011flant\u0131 noktas\u0131n\u0131 RHEL \/ CentOS 7&#8217;de a\u00e7mak i\u00e7in Firewalld hizmetine kar\u015f\u0131 a\u015fa\u011f\u0131daki komutlar\u0131 \u00e7al\u0131\u015ft\u0131r\u0131n.<\/p>\n<pre class=\"language-markup\"><code>firewall-cmd --add-service=ntp --permanent\r\nfirewall-cmd --reload<\/code><\/pre>\n<p>&nbsp;<\/p>\n<p>7.\u00a0G\u00fcvenlik Duvar\u0131 ba\u011flant\u0131 noktas\u0131 123&#8217;\u00fc a\u00e7t\u0131ktan sonra, NTP sunucusunu ba\u015flat\u0131n ve sistem genelinde etkinle\u015ftirdi\u011finizden emin olun.\u00a0Hizmeti y\u00f6netmek i\u00e7in a\u015fa\u011f\u0131daki komutlar\u0131 kullan\u0131n.<\/p>\n<pre class=\"language-markup\"><code>systemctl start ntpd\r\nsystemctl enable ntpd\r\nsystemctl status ntpd<\/code><\/pre>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_Adim_Sunucu_Zaman_Senkronizasyonunu_Dogrulayin\"><\/span>3. Ad\u0131m: Sunucu Zaman Senkronizasyonunu Do\u011frulay\u0131n<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&nbsp;<\/p>\n<p>8.\u00a0NTP servisi ba\u015flat\u0131ld\u0131ktan sonra, sunucunun havuz listesi zone alanlar\u0131 sunucular\u0131yla zaman\u0131 e\u015fitlemesi i\u00e7in birka\u00e7 dakika bekleyin, ard\u0131ndan NTP e\u015fleri e\u015fitleme durumunu ve sistem saatinizi do\u011frulamak i\u00e7in a\u015fa\u011f\u0131daki komutlar\u0131 \u00e7al\u0131\u015ft\u0131r\u0131n.<\/p>\n<pre class=\"language-markup\"><code>ntpq -p \r\ndate -R<\/code><\/pre>\n<p>&nbsp;<\/p>\n<p>9.\u00a0Se\u00e7ti\u011finiz bir havuzla sorgulamak ve e\u015fitlemek istiyorsan\u0131z\u00a0, a\u015fa\u011f\u0131daki komut sat\u0131r\u0131 \u00f6rne\u011finde \u00f6nerildi\u011fi gibi\u00a0ntpdate\u00a0komutunu ve ard\u0131ndan sunucu veya sunucu adreslerini kullan\u0131n.<\/p>\n<pre class=\"language-markup\"><code>ntpdate -q 0.tr.pool.ntp.org 1.tr.pool.ntp.org\r\n<\/code><\/pre>\n<p>Bol trafikler<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A\u011f Zaman Protokol\u00fc &#8211; NTP &#8211; Aktar\u0131m Katman\u0131&#8217;nda 123 UDP ba\u011flant\u0131 noktas\u0131 \u00fczerinden \u00e7al\u0131\u015fan ve bilgisayarlar\u0131n a\u011flar \u00fczerinden zaman\u0131 do\u011fru bir \u015fekilde senkronize etmesine izin veren bir protokold\u00fcr. Zaman ge\u00e7tik\u00e7e, bilgisayarlar\u0131n i\u00e7 saatleri kayma e\u011filimi g\u00f6sterir, bu da \u00f6zellikle sunucular ve istemciler g\u00fcnl\u00fck dosyalar\u0131nda veya sunucu kaynaklar\u0131n\u0131 veya veritabanlar\u0131n\u0131 \u00e7o\u011faltmak istiyorsan\u0131z tutars\u0131z zaman sorunlar\u0131na yol &hellip;<\/p>\n","protected":false},"author":1,"featured_media":1456,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5],"tags":[],"class_list":["post-944","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-linux"],"acf":[],"_links":{"self":[{"href":"https:\/\/sunucucozumleri.com\/blog\/wp-json\/wp\/v2\/posts\/944","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sunucucozumleri.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sunucucozumleri.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sunucucozumleri.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sunucucozumleri.com\/blog\/wp-json\/wp\/v2\/comments?post=944"}],"version-history":[{"count":0,"href":"https:\/\/sunucucozumleri.com\/blog\/wp-json\/wp\/v2\/posts\/944\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sunucucozumleri.com\/blog\/wp-json\/wp\/v2\/media\/1456"}],"wp:attachment":[{"href":"https:\/\/sunucucozumleri.com\/blog\/wp-json\/wp\/v2\/media?parent=944"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sunucucozumleri.com\/blog\/wp-json\/wp\/v2\/categories?post=944"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sunucucozumleri.com\/blog\/wp-json\/wp\/v2\/tags?post=944"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}