{"id":1290,"date":"2026-01-03T14:19:15","date_gmt":"2026-01-03T11:19:15","guid":{"rendered":"https:\/\/tuncersen.com.tr\/blog\/?p=1290"},"modified":"2026-01-03T14:37:38","modified_gmt":"2026-01-03T11:37:38","slug":"modem-guvenlik-ayarlari-ve-siber-korunma","status":"publish","type":"post","link":"https:\/\/tuncersen.com.tr\/blog\/modem-guvenlik-ayarlari-ve-siber-korunma.html","title":{"rendered":"Modem G\u00fcvenlik Ayarlar\u0131: Ev ve \u0130\u015fyeri \u0130\u00e7in Tam Koruma"},"content":{"rendered":"<p data-path-to-node=\"8\">\u0130nternet d\u00fcnyas\u0131na a\u00e7\u0131lan kap\u0131n\u0131z olan modemler, genellikle &#8220;kur ve unut&#8221; mant\u0131\u011f\u0131yla bir k\u00f6\u015feye at\u0131l\u0131r. Ancak siber sald\u0131rganlar i\u00e7in en kolay giri\u015f noktas\u0131 ne bilgisayar\u0131n\u0131z ne de telefonunuzdur; do\u011frudan internet trafi\u011finizi y\u00f6neten o k\u00fc\u00e7\u00fck kutudur. Evinizdeki ak\u0131ll\u0131 s\u00fcp\u00fcrgeden i\u015f yerinizdeki sunucuya kadar her \u015fey, modeminizin g\u00fcvenli\u011fi kadard\u0131r. E\u011fer <b data-path-to-node=\"8\" data-index-in-node=\"357\">modem g\u00fcvenlik ayarlar\u0131<\/b> do\u011fru yap\u0131land\u0131r\u0131lmam\u0131\u015fsa, dijital kalenizin kap\u0131s\u0131 sonuna kadar a\u00e7\u0131k demektir.<\/p>\n<p data-path-to-node=\"9\">Bu rehberde, 15 y\u0131ll\u0131k a\u011f y\u00f6netimi tecr\u00fcbemle, en bilgisiz kullan\u0131c\u0131dan profesyonel teknik ekiplere kadar herkesin uygulamas\u0131 gereken hayati g\u00fcvenlik tedbirlerini ad\u0131m ad\u0131m anlat\u0131yorum.<\/p>\n<div id=\"attachment_1292\" style=\"width: 888px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" aria-describedby=\"caption-attachment-1292\" class=\"size-full wp-image-1292\" src=\"https:\/\/tuncersen.com.tr\/blog\/wp-content\/uploads\/2026\/01\/Modem-Guvenlik-Ayarlari.jpg\" loading=\"lazy\" alt=\"Modem G\u00fcvenlik Ayarlar\u0131\" width=\"878\" height=\"292\" srcset=\"https:\/\/tuncersen.com.tr\/blog\/wp-content\/uploads\/2026\/01\/Modem-Guvenlik-Ayarlari.jpg 878w, https:\/\/tuncersen.com.tr\/blog\/wp-content\/uploads\/2026\/01\/Modem-Guvenlik-Ayarlari-300x100.jpg 300w, https:\/\/tuncersen.com.tr\/blog\/wp-content\/uploads\/2026\/01\/Modem-Guvenlik-Ayarlari-768x255.jpg 768w\" sizes=\"(max-width: 878px) 100vw, 878px\" \/><p id=\"caption-attachment-1292\" class=\"wp-caption-text\">Modem G\u00fcvenlik Ayarlar\u0131<\/p><\/div>\n<h2 data-path-to-node=\"10\">Modem G\u00fcvenlik Ayarlar\u0131 Neden Bu Kadar Kritik?<\/h2>\n<p data-path-to-node=\"11\">Bir sald\u0131rgan modeminizi ele ge\u00e7irdi\u011finde, sadece internetinizi yava\u015flatmaz. Bankac\u0131l\u0131k i\u015flemlerinizi izleyebilir (Man-in-the-Middle sald\u0131r\u0131s\u0131), cihazlar\u0131n\u0131za fidye yaz\u0131l\u0131m\u0131 bula\u015ft\u0131rabilir veya IP adresinizi yasa d\u0131\u015f\u0131 i\u015flerde kullanarak sizi hukuki sorumluluk alt\u0131na sokabilir. Daha \u00f6nceki <a class=\"ng-star-inserted\" href=\"https:\/\/tuncersen.com.tr\/blog\/wordpress-guvenlik-onlemleri.html\" target=\"_blank\" rel=\"noopener\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahgKEwjbzNu_je-RAxUAAAAAHQAAAAAQiQE\">WordPress G\u00fcvenlik \u00d6nlemleri<\/a> yaz\u0131mda web sitelerini korumay\u0131 konu\u015fmu\u015ftuk; \u015fimdi ise o sitelere ba\u011fland\u0131\u011f\u0131n\u0131z hatt\u0131n g\u00fcvenli\u011fini sa\u011flama zaman\u0131.<\/p>\n<h2 data-path-to-node=\"12\">1. Temel Seviye: \u0130lk Kurulumda Yap\u0131lmas\u0131 Gerekenler<\/h2>\n<p data-path-to-node=\"13\">Modemi kutudan \u00e7\u0131kard\u0131\u011f\u0131n\u0131zda veya servis sa\u011flay\u0131c\u0131n\u0131z kurdu\u011funda, genellikle &#8220;varsay\u0131lan&#8221; ayarlarla gelir. Bu ayarlar g\u00fcvenlik i\u00e7in de\u011fil, kolay kurulum i\u00e7in tasarlanm\u0131\u015ft\u0131r.<\/p>\n<h3 data-path-to-node=\"14\">Varsay\u0131lan \u015eifreyi Mutlaka De\u011fi\u015ftirin<\/h3>\n<p data-path-to-node=\"15\">Modem aray\u00fcz\u00fcne giri\u015f i\u00e7in kullan\u0131lan <code data-path-to-node=\"15\" data-index-in-node=\"38\">admin \/ admin<\/code> veya <code data-path-to-node=\"15\" data-index-in-node=\"57\">admin \/ 1234<\/code> gibi \u015fifreler, d\u00fcnyadaki t\u00fcm hackerlar\u0131n ezberindedir. Aray\u00fcze girdikten sonra <b data-path-to-node=\"15\" data-index-in-node=\"149\">Sistem Ara\u00e7lar\u0131 &gt; \u015eifre<\/b> men\u00fcs\u00fcnden mutlaka g\u00fc\u00e7l\u00fc bir \u015fifre belirleyin.<\/p>\n<p data-path-to-node=\"15\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-1295\" src=\"https:\/\/tuncersen.com.tr\/blog\/wp-content\/uploads\/2026\/01\/Wi-Fi-Protected-Setup.jpg\" loading=\"lazy\" alt=\"Wi-Fi Protected Setup\" width=\"710\" height=\"390\" srcset=\"https:\/\/tuncersen.com.tr\/blog\/wp-content\/uploads\/2026\/01\/Wi-Fi-Protected-Setup.jpg 710w, https:\/\/tuncersen.com.tr\/blog\/wp-content\/uploads\/2026\/01\/Wi-Fi-Protected-Setup-300x165.jpg 300w\" sizes=\"(max-width: 710px) 100vw, 710px\" \/><\/p>\n<h3 data-path-to-node=\"16\">WPS \u00d6zelli\u011fini Kapat\u0131n<\/h3>\n<p data-path-to-node=\"17\">&#8220;Wi-Fi Protected Setup&#8221; (WPS), tu\u015fa basarak \u015fifresiz ba\u011flanmay\u0131 sa\u011flar. Ancak &#8220;Brute Force&#8221; sald\u0131r\u0131lar\u0131na kar\u015f\u0131 son derece savunmas\u0131zd\u0131r. Modem aray\u00fcz\u00fcnde &#8220;Kablosuz&#8221; sekmesi alt\u0131nda bulunan WPS \u00f6zelli\u011fini <b data-path-to-node=\"17\" data-index-in-node=\"205\">Devre D\u0131\u015f\u0131 (Disable)<\/b> konumuna getirin.<\/p>\n<h2 data-path-to-node=\"18\">2. Kablosuz A\u011f (Wi-Fi) G\u00fcvenli\u011fini S\u0131k\u0131la\u015ft\u0131rma<\/h2>\n<p data-path-to-node=\"19\">Wi-Fi \u015fifreniz, kom\u015funuzun girmesini engellemekten daha fazlas\u0131n\u0131 ifade eder. A\u011f trafi\u011finizin \u015fifrelenme standard\u0131n\u0131 belirler.<\/p>\n<ul>\n<li data-path-to-node=\"20,0,0\"><b data-path-to-node=\"20,0,0\" data-index-in-node=\"0\">\u015eifreleme Protokol\u00fc:<\/b> Asla WEP veya WPA kullanmay\u0131n. Bunlar dakikalar i\u00e7inde k\u0131r\u0131labilir. En az <b data-path-to-node=\"20,0,0\" data-index-in-node=\"95\">WPA2-PSK (AES)<\/b>, modeminiz destekliyorsa <b data-path-to-node=\"20,0,0\" data-index-in-node=\"135\">WPA3<\/b> standard\u0131n\u0131 se\u00e7in.<\/li>\n<li data-path-to-node=\"20,1,0\"><b data-path-to-node=\"20,1,0\" data-index-in-node=\"0\">SSID Gizleme (Opsiyonel):<\/b> A\u011f ad\u0131n\u0131z\u0131 (SSID) gizlemek, amat\u00f6r taray\u0131c\u0131lardan ka\u00e7\u0131nman\u0131z\u0131 sa\u011flar ancak profesyonel ara\u00e7lar yine de sizi g\u00f6rebilir. Yine de ek bir katman olarak &#8220;SSID Yay\u0131n\u0131&#8221;n\u0131 kapatabilirsiniz.<\/li>\n<\/ul>\n<h2 data-path-to-node=\"21\">3. \u0130leri Seviye Modem G\u00fcvenlik Ayarlar\u0131 ve \u0130\u015fletmeler \u0130\u00e7in Tedbirler<\/h2>\n<p data-path-to-node=\"22\">Ev kullan\u0131c\u0131lar\u0131 i\u00e7in temel ayarlar yeterli olabilir ancak bir i\u015fletme y\u00f6netiyorsan\u0131z veya evden \u00e7al\u0131\u015f\u0131yorsan\u0131z (Home Office), daha fazlas\u0131na ihtiyac\u0131n\u0131z vard\u0131r.<\/p>\n<h3 data-path-to-node=\"23\">Firmware (Yaz\u0131l\u0131m) G\u00fcncellemesi<\/h3>\n<p data-path-to-node=\"24\">Modem \u00fcreticileri, ke\u015ffedilen g\u00fcvenlik a\u00e7\u0131klar\u0131n\u0131 kapatmak i\u00e7in d\u00fczenli g\u00fcncellemeler yay\u0131nlar. Modem aray\u00fcz\u00fcnde <b data-path-to-node=\"24\" data-index-in-node=\"113\">Bak\u0131m &gt; Firmware G\u00fcncelleme<\/b> k\u0131sm\u0131n\u0131 ayda bir kontrol edin. G\u00fcncel olmayan bir modem, delik de\u015fik bir kalkan gibidir.<\/p>\n<p data-path-to-node=\"24\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-1293\" src=\"https:\/\/tuncersen.com.tr\/blog\/wp-content\/uploads\/2026\/01\/MAC-Adresi-Filtreleme.jpg\" loading=\"lazy\" alt=\"MAC Adresi Filtreleme\" width=\"640\" height=\"400\" srcset=\"https:\/\/tuncersen.com.tr\/blog\/wp-content\/uploads\/2026\/01\/MAC-Adresi-Filtreleme.jpg 640w, https:\/\/tuncersen.com.tr\/blog\/wp-content\/uploads\/2026\/01\/MAC-Adresi-Filtreleme-300x188.jpg 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/p>\n<h3 data-path-to-node=\"25\">MAC Adresi Filtreleme<\/h3>\n<p data-path-to-node=\"26\">Bu, en kat\u0131 g\u00fcvenlik \u00f6nlemidir. Modeminize sadece sizin belirledi\u011finiz cihazlar\u0131n (MAC adreslerinin) ba\u011flanmas\u0131na izin verirsiniz. \u015eifreniz \u00e7al\u0131nsa bile, MAC adresi listede olmayan bir sald\u0131rgan a\u011fa dahil olamaz.<\/p>\n<ul>\n<li data-path-to-node=\"27,0,0\"><i data-path-to-node=\"27,0,0\" data-index-in-node=\"0\">Nas\u0131l Yap\u0131l\u0131r:<\/i> Cihazlar\u0131n\u0131z\u0131n MAC adreslerini \u00f6\u011frenin ve modemdeki &#8220;MAC Filtreleme&#8221; listesine ekleyerek &#8220;Sadece \u0130zin Verilenler&#8221; modunu a\u00e7\u0131n.<\/li>\n<\/ul>\n<h3 data-path-to-node=\"28\">Uzaktan Y\u00f6netimi (Remote Management) Kapat\u0131n<\/h3>\n<p data-path-to-node=\"29\">Modeminizin internet \u00fczerinden (WAN portundan) y\u00f6netilmesine izin veren bu \u00f6zellik, genellikle teknik servisler i\u00e7in a\u00e7\u0131kt\u0131r. Ancak sald\u0131rganlar da bu portu (genelde 80 veya 8080) kullan\u0131r. <b data-path-to-node=\"29\" data-index-in-node=\"190\">Eri\u015fim Y\u00f6netimi &gt; Uzaktan Y\u00f6netim<\/b> men\u00fcs\u00fcnden bu \u00f6zelli\u011fi mutlaka kapat\u0131n veya sadece yerel a\u011fa (LAN) izin verin.<\/p>\n<h2 data-path-to-node=\"30\">4. Misafir A\u011f\u0131 (Guest Network) Kullan\u0131m\u0131<\/h2>\n<p data-path-to-node=\"31\">Evinize veya i\u015f yerinize gelen misafirlere Wi-Fi \u015fifrenizi vermek, onlar\u0131 ana a\u011f\u0131n\u0131za dahil etmek demektir. Bu durum, vir\u00fcsl\u00fc bir misafir telefonunun t\u00fcm a\u011f\u0131n\u0131za zarar vermesine yol a\u00e7abilir.<\/p>\n<p data-path-to-node=\"32\">Modern modemlerin \u00e7o\u011funda bulunan <b data-path-to-node=\"32\" data-index-in-node=\"34\">Misafir A\u011f\u0131<\/b> \u00f6zelli\u011fi ile, ana a\u011f\u0131n\u0131zdan tamamen izole edilmi\u015f, sadece internete \u00e7\u0131k\u0131\u015f\u0131 olan ikinci bir a\u011f olu\u015fturun. Daha \u00f6nce bahsetti\u011fim <a class=\"ng-star-inserted\" href=\"https:\/\/www.google.com\/search?q=\/3-2-1-yedekleme-kurali-ve-veri-guvenligi\" target=\"_blank\" rel=\"noopener nofollow\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahgKEwjbzNu_je-RAxUAAAAAHQAAAAAQigE\">3-2-1 Yedekleme Kural\u0131<\/a> gibi, a\u011f izolasyonu da verilerinizi koruman\u0131n temel bir par\u00e7as\u0131d\u0131r.<\/p>\n<div id=\"attachment_1294\" style=\"width: 590px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" aria-describedby=\"caption-attachment-1294\" class=\"size-full wp-image-1294\" src=\"https:\/\/tuncersen.com.tr\/blog\/wp-content\/uploads\/2026\/01\/Firewall.jpg\" loading=\"lazy\" alt=\"Firewall\" width=\"580\" height=\"388\" srcset=\"https:\/\/tuncersen.com.tr\/blog\/wp-content\/uploads\/2026\/01\/Firewall.jpg 580w, https:\/\/tuncersen.com.tr\/blog\/wp-content\/uploads\/2026\/01\/Firewall-300x201.jpg 300w\" sizes=\"(max-width: 580px) 100vw, 580px\" \/><p id=\"caption-attachment-1294\" class=\"wp-caption-text\">Firewall<\/p><\/div>\n<h2 data-path-to-node=\"33\">5. DNS G\u00fcvenli\u011fi ve G\u00fcvenlik Duvar\u0131 (Firewall)<\/h2>\n<p data-path-to-node=\"34\">Servis sa\u011flay\u0131c\u0131n\u0131z\u0131n varsay\u0131lan DNS adresleri yerine, g\u00fcvenli DNS hizmetlerini (\u00d6rn: Cloudflare 1.1.1.1 veya Google 8.8.8.8) kullanmak hem h\u0131z\u0131 art\u0131r\u0131r hem de baz\u0131 oltalama (phishing) sitelerini engeller.<\/p>\n<p data-path-to-node=\"35\">Ayr\u0131ca modeminizin <b data-path-to-node=\"35\" data-index-in-node=\"19\">SPI Firewall<\/b> (Stateful Packet Inspection) \u00f6zelli\u011finin &#8220;A\u00e7\u0131k&#8221; oldu\u011fundan emin olun. Bu \u00f6zellik, gelen veri paketlerini analiz ederek \u015f\u00fcpheli olanlar\u0131 otomatik olarak reddeder.<\/p>\n<h3 data-path-to-node=\"36\">De\u011ferlendirelim!<\/h3>\n<p data-path-to-node=\"37\">Teknoloji geli\u015ftik\u00e7e sald\u0131r\u0131 y\u00f6ntemleri de geli\u015fiyor, ancak temel prensipler de\u011fi\u015fmiyor. Do\u011fru yap\u0131land\u0131r\u0131lm\u0131\u015f <b data-path-to-node=\"37\" data-index-in-node=\"111\">modem g\u00fcvenlik ayarlar\u0131<\/b>, dijital d\u00fcnyadaki en b\u00fcy\u00fck sigortan\u0131zd\u0131r. Unutmay\u0131n, g\u00fcvenlik bir \u00fcr\u00fcn de\u011fil, bir s\u00fcre\u00e7tir. Modeminizi kurup unutmay\u0131n; periyodik olarak aray\u00fcze girip loglar\u0131 ve ba\u011fl\u0131 cihazlar\u0131 kontrol etmeyi al\u0131\u015fkanl\u0131k haline getirin.<\/p>\n<p data-path-to-node=\"38\">Modem g\u00fcvenli\u011fi hakk\u0131nda daha fazla teknik terim ve detay i\u00e7in <a class=\"ng-star-inserted\" href=\"https:\/\/tr.wikipedia.org\/wiki\/A%C4%9F_g%C3%BCvenli%C4%9Fi\" target=\"_blank\" rel=\"noopener nofollow\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahgKEwjbzNu_je-RAxUAAAAAHQAAAAAQiwE\">Wikipedia&#8217;n\u0131n A\u011f G\u00fcvenli\u011fi<\/a> makalesini inceleyebilirsiniz.<\/p>\n<p data-path-to-node=\"39\">Siz modeminizde hangi g\u00fcvenlik \u00f6nlemlerini kullan\u0131yorsunuz? Yorumlarda payla\u015f\u0131n, g\u00f6zden ka\u00e7an detaylar\u0131 birlikte tart\u0131\u015fal\u0131m.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0130nternet d\u00fcnyas\u0131na a\u00e7\u0131lan kap\u0131n\u0131z olan modemler, genellikle &#8220;kur ve unut&#8221; mant\u0131\u011f\u0131yla bir k\u00f6\u015feye at\u0131l\u0131r. Ancak siber sald\u0131rganlar i\u00e7in en kolay giri\u015f noktas\u0131 ne bilgisayar\u0131n\u0131z ne&#8230;<\/p>\n","protected":false},"author":1,"featured_media":1291,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[],"class_list":["post-1290","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guvenlik"],"menu_order":0,"_links":{"self":[{"href":"https:\/\/tuncersen.com.tr\/blog\/wp-json\/wp\/v2\/posts\/1290","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tuncersen.com.tr\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tuncersen.com.tr\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tuncersen.com.tr\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tuncersen.com.tr\/blog\/wp-json\/wp\/v2\/comments?post=1290"}],"version-history":[{"count":0,"href":"https:\/\/tuncersen.com.tr\/blog\/wp-json\/wp\/v2\/posts\/1290\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tuncersen.com.tr\/blog\/wp-json\/wp\/v2\/media\/1291"}],"wp:attachment":[{"href":"https:\/\/tuncersen.com.tr\/blog\/wp-json\/wp\/v2\/media?parent=1290"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tuncersen.com.tr\/blog\/wp-json\/wp\/v2\/categories?post=1290"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tuncersen.com.tr\/blog\/wp-json\/wp\/v2\/tags?post=1290"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}