{"id":5322,"date":"2025-06-05T15:09:28","date_gmt":"2025-06-05T12:09:28","guid":{"rendered":"https:\/\/hostingdunyam.com.tr\/blog\/?p=5322"},"modified":"2025-06-05T15:09:28","modified_gmt":"2025-06-05T12:09:28","slug":"linux-sunucuyu-ping-erisimine-kapatma","status":"publish","type":"post","link":"https:\/\/hostingdunyam.com.tr\/blog\/linux-sunucuyu-ping-erisimine-kapatma","title":{"rendered":"Linux Sunucuyu Ping Eri\u015fimine Kapatma"},"content":{"rendered":"<p data-start=\"0\" data-end=\"112\"><span class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\">Linux sunucularda ping (ICMP) eri\u015fimini kapatmak, sunucunun d\u0131\u015far\u0131dan izlenmesini engellemek ve temel bir g\u00fcvenlik \u00f6nlemi sa\u011flamak i\u00e7in s\u0131k\u00e7a ba\u015fvurulan bir y\u00f6ntemdir.<\/span> <span class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\">Bu i\u015flem, \u00f6zellikle DDoS sald\u0131r\u0131lar\u0131na kar\u015f\u0131 do\u011frudan bir koruma sa\u011flamasa da, potansiyel sald\u0131rganlar\u0131n sunucunun aktif olup olmad\u0131\u011f\u0131n\u0131 anlamas\u0131n\u0131 zorla\u015ft\u0131r\u0131r.<\/span><\/p>\n<p data-start=\"114\" data-end=\"230\"><span class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\">Ping eri\u015fimini kapatman\u0131n birka\u00e7 farkl\u0131 y\u00f6ntemi bulunmaktad\u0131r.<\/span> <span class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\">A\u015fa\u011f\u0131da, en yayg\u0131n kullan\u0131lan iki y\u00f6ntemi ad\u0131m ad\u0131m a\u00e7\u0131kl\u0131yoruz:<\/span><\/p>\n<h2 data-start=\"114\" data-end=\"230\">sysctl.conf Dosyas\u0131 \u00dczerinden Ping Eri\u015fimini Kapatma<\/h2>\n<p data-start=\"302\" data-end=\"380\"><span class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\">Bu y\u00f6ntem, sistemin \u00e7ekirdek ayarlar\u0131n\u0131 de\u011fi\u015ftirerek ICMP echo isteklerine yan\u0131t verilmesini engeller.<\/span><\/p>\n<ul>\n<li data-start=\"382\" data-end=\"394\">Sunucunuza SSH ile root olarak ba\u011flan\u0131n.<\/li>\n<li data-start=\"382\" data-end=\"394\"><code data-start=\"0\" data-end=\"18\" data-is-only-node=\"\">\/etc\/sysctl.conf<\/code> dosyas\u0131n\u0131 bir metin d\u00fczenleyici ile a\u00e7\u0131n:<\/li>\n<\/ul>\n<blockquote><p>nano \/etc\/sysctl.conf<\/p><\/blockquote>\n<ul>\n<li data-start=\"382\" data-end=\"394\">Dosyan\u0131n en alt\u0131na a\u015fa\u011f\u0131daki sat\u0131r\u0131 ekleyin:<\/li>\n<\/ul>\n<blockquote><p>net.ipv4.icmp_echo_ignore_all=1<\/p><\/blockquote>\n<ul>\n<li data-start=\"382\" data-end=\"394\">Yap\u0131lan de\u011fi\u015fiklikleri kaydedin ve \u00e7\u0131k\u0131n.<\/li>\n<li data-start=\"382\" data-end=\"394\">De\u011fi\u015fiklikleri uygulamak i\u00e7in a\u015fa\u011f\u0131daki komutu \u00e7al\u0131\u015ft\u0131r\u0131n:<\/li>\n<\/ul>\n<blockquote><p>sysctl -p<\/p><\/blockquote>\n<p>Bu i\u015flemler sonucunda sunucunuz, gelen ping isteklerine yan\u0131t vermeyecektir.<\/p>\n<p data-start=\"1141\" data-end=\"1178\"><strong data-start=\"1141\" data-end=\"1178\">Ping Eri\u015fimini Tekrar A\u00e7mak \u0130\u00e7in:<\/strong><\/p>\n<p data-start=\"1180\" data-end=\"1258\"><code data-start=\"0\" data-end=\"18\" data-is-only-node=\"\">\/etc\/sysctl.conf<\/code> dosyas\u0131ndaki <code data-start=\"32\" data-end=\"65\">net.ipv4.icmp_echo_ignore_all=1<\/code> sat\u0131r\u0131n\u0131 silin veya de\u011feri <code data-start=\"93\" data-end=\"96\">0<\/code> olarak de\u011fi\u015ftirin ve ard\u0131ndan <code data-start=\"127\" data-end=\"138\">sysctl -p<\/code> komutunu \u00e7al\u0131\u015ft\u0131r\u0131n.<\/p>\n<h2 data-start=\"1180\" data-end=\"1258\">iptables Kullanarak Ping Eri\u015fimini Kapatma<\/h2>\n<p>Bu y\u00f6ntem, g\u00fcvenlik duvar\u0131 kurallar\u0131 arac\u0131l\u0131\u011f\u0131yla ICMP paketlerini engeller.<\/p>\n<ul>\n<li>Sunucunuza SSH ile root olarak ba\u011flan\u0131n.<\/li>\n<li>A\u015fa\u011f\u0131daki komutu \u00e7al\u0131\u015ft\u0131rarak gelen ping isteklerini engelleyin:<\/li>\n<\/ul>\n<blockquote><p>iptables -A INPUT -p icmp &#8211;icmp-type echo-request -j DROP<\/p><\/blockquote>\n<ul>\n<li>Yap\u0131lan de\u011fi\u015fiklikleri kal\u0131c\u0131 hale getirmek i\u00e7in iptables kurallar\u0131n\u0131 kaydedin:<\/li>\n<\/ul>\n<blockquote><p>iptables-save &gt; \/etc\/iptables\/rules.v4<\/p><\/blockquote>\n<p><strong>Ping Eri\u015fimini Tekrar A\u00e7mak \u0130\u00e7in:<\/strong><\/p>\n<p>A\u015fa\u011f\u0131daki komutu \u00e7al\u0131\u015ft\u0131rarak eklenen kural\u0131 kald\u0131rabilirsiniz:<\/p>\n<blockquote><p>iptables -D INPUT -p icmp &#8211;icmp-type echo-request -j DROP<\/p>\n<p>iptables-save &gt; \/etc\/iptables\/rules.v4<\/p><\/blockquote>\n<h2 data-start=\"2293\" data-end=\"2327\">Dikkat Edilmesi Gerekenler<\/h2>\n<ol>\n<li data-start=\"2331\" data-end=\"2409\"><span class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\">Ping eri\u015fimini kapatmak, sunucunuzun a\u011f \u00fczerinden izlenmesini zorla\u015ft\u0131r\u0131r ancak di\u011fer g\u00fcvenlik \u00f6nlemleriyle birlikte kullan\u0131lmal\u0131d\u0131r.<\/span><\/li>\n<li data-start=\"2413\" data-end=\"2491\"><span class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\">Baz\u0131 izleme ve y\u00f6netim ara\u00e7lar\u0131, sunucunun eri\u015filebilirli\u011fini kontrol etmek i\u00e7in ping kullanabilir. Bu nedenle, ping eri\u015fimini kapatmadan \u00f6nce bu ara\u00e7lar\u0131n etkilenip etkilenmeyece\u011fini de\u011ferlendirin.<\/span><\/li>\n<li data-start=\"2495\" data-end=\"2573\"><span class=\"relative -mx-px my-[-0.2rem] rounded px-px py-[0.2rem] transition-colors duration-100 ease-in-out\">Yap\u0131lan de\u011fi\u015fikliklerin kal\u0131c\u0131 olmas\u0131 i\u00e7in sistem yeniden ba\u015flat\u0131ld\u0131\u011f\u0131nda da ge\u00e7erli olmas\u0131n\u0131 sa\u011flamak \u00f6nemlidir.<\/span><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Linux sunucularda ping (ICMP) eri\u015fimini kapatmak, sunucunun d\u0131\u015far\u0131dan izlenmesini engellemek ve temel bir g\u00fcvenlik \u00f6nlemi sa\u011flamak i\u00e7in s\u0131k\u00e7a ba\u015fvurulan bir y\u00f6ntemdir. Bu i\u015flem, \u00f6zellikle DDoS sald\u0131r\u0131lar\u0131na kar\u015f\u0131 do\u011frudan bir koruma sa\u011flamasa da, potansiyel sald\u0131rganlar\u0131n sunucunun aktif olup olmad\u0131\u011f\u0131n\u0131 anlamas\u0131n\u0131 zorla\u015ft\u0131r\u0131r. Ping eri\u015fimini kapatman\u0131n birka\u00e7 farkl\u0131 y\u00f6ntemi bulunmaktad\u0131r. A\u015fa\u011f\u0131da, en yayg\u0131n kullan\u0131lan iki y\u00f6ntemi ad\u0131m ad\u0131m [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":5323,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-5322","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-genel"],"_links":{"self":[{"href":"https:\/\/hostingdunyam.com.tr\/blog\/wp-json\/wp\/v2\/posts\/5322","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hostingdunyam.com.tr\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hostingdunyam.com.tr\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hostingdunyam.com.tr\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hostingdunyam.com.tr\/blog\/wp-json\/wp\/v2\/comments?post=5322"}],"version-history":[{"count":3,"href":"https:\/\/hostingdunyam.com.tr\/blog\/wp-json\/wp\/v2\/posts\/5322\/revisions"}],"predecessor-version":[{"id":5328,"href":"https:\/\/hostingdunyam.com.tr\/blog\/wp-json\/wp\/v2\/posts\/5322\/revisions\/5328"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hostingdunyam.com.tr\/blog\/wp-json\/wp\/v2\/media\/5323"}],"wp:attachment":[{"href":"https:\/\/hostingdunyam.com.tr\/blog\/wp-json\/wp\/v2\/media?parent=5322"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hostingdunyam.com.tr\/blog\/wp-json\/wp\/v2\/categories?post=5322"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hostingdunyam.com.tr\/blog\/wp-json\/wp\/v2\/tags?post=5322"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}