{"id":385,"date":"2025-04-21T00:06:50","date_gmt":"2025-04-20T21:06:50","guid":{"rendered":"https:\/\/hostvera.com.tr\/blog\/?p=385"},"modified":"2025-05-26T23:29:37","modified_gmt":"2025-05-26T20:29:37","slug":"lets-encrypt-ile-otomatik-ssl-sertifika-yenileme-rehberi","status":"publish","type":"post","link":"https:\/\/hostvera.com.tr\/blog\/lets-encrypt-ile-otomatik-ssl-sertifika-yenileme-rehberi\/","title":{"rendered":"Let\u2019s Encrypt ile Otomatik SSL Sertifika Yenileme Nas\u0131l Yap\u0131l\u0131r?"},"content":{"rendered":"\n<p><strong>Let\u2019s Encrypt ile Otomatik SSL Sertifika Yenileme Rehberi<\/strong><\/p>\n\n\n\n<p>G\u00fcn\u00fcm\u00fczde web sitenizin g\u00fcvenli\u011fini sa\u011flamak, kullan\u0131c\u0131 verilerini korumak ve arama motorlar\u0131nda \u00f6n plana \u00e7\u0131kmak i\u00e7in HTTPS kullanmak neredeyse zorunlu hale geldi. Let\u2019s Encrypt, \u00fccretsiz ve a\u00e7\u0131k kaynakl\u0131 SSL sertifikalar\u0131 sunarak bu s\u00fcreci herkes i\u00e7in eri\u015filebilir k\u0131l\u0131yor. Ancak bir sertifika ald\u0131\u011f\u0131n\u0131zda s\u00fcresi 90 g\u00fcnle s\u0131n\u0131rl\u0131; zaman\u0131nda yenilemezseniz siteniz \u201cg\u00fcvensiz\u201d olarak i\u015faretlenebilir. Bu rehberde, Let\u2019s Encrypt sertifikan\u0131z\u0131 sorunsuz \u015fekilde kurup otomatik yenilemek i\u00e7in ad\u0131m ad\u0131m izleyebilece\u011finiz y\u00f6ntemleri anlataca\u011f\u0131m.<\/p>\n\n\n\n<p><strong>Let\u2019s Encrypt\u2019e H\u0131zl\u0131 Bak\u0131\u015f<\/strong><\/p>\n\n\n\n<p>Let\u2019s Encrypt; Internet Security Research Group (ISRG) taraf\u0131ndan y\u00f6netilen, ACME protokol\u00fcn\u00fc kullanarak \u00fccretsiz SSL\/TLS sertifikas\u0131 sa\u011flayan bir hizmet. Temel avantajlar\u0131:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u00dccretsiz:<\/strong> Sertifika maliyeti yok, b\u00fct\u00e7enizi ba\u015fka alanlara ay\u0131rabilirsiniz.<\/li>\n\n\n\n<li><strong>Otomasyon Dostu:<\/strong> Certbot gibi ara\u00e7larla kurulum ve yenileme ad\u0131mlar\u0131 otomatikle\u015ftirilebilir.<\/li>\n\n\n\n<li><strong>A\u00e7\u0131k Kaynak:<\/strong> Kod ve dok\u00fcmantasyon \u015feffaf, topluluk deste\u011fi g\u00fc\u00e7l\u00fc.<\/li>\n<\/ul>\n\n\n\n<p>Sertifika s\u00fcresi yaln\u0131zca 90 g\u00fcn oldu\u011fundan, otomatik yenileme mekanizmas\u0131 kurmak hem zaman kazand\u0131r\u0131r hem de ba\u011flant\u0131 g\u00fcvenli\u011fini kesintisiz s\u00fcrd\u00fcr\u00fcr.<\/p>\n\n\n\n<p><strong>Neden Otomatik Yenileme \u015eart?<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>S\u00fcre A\u015f\u0131m\u0131 Riski:<\/strong> Manuel yenileme unutulursa sertifikan\u0131z\u0131n s\u00fcresi dolabilir, ziyaret\u00e7iler \u201cG\u00fcvensiz site\u201d uyar\u0131s\u0131yla kar\u015f\u0131la\u015f\u0131r.<\/li>\n\n\n\n<li><strong>Operasyonel Kolayl\u0131k:<\/strong> Cronjob veya systemd timer ile belirledi\u011finiz aral\u0131kta sertifika tazelenir, m\u00fcdahale gerektirmez.<\/li>\n\n\n\n<li><strong>SEO Avantaj\u0131 ve G\u00fcven:<\/strong> S\u00fcrekli HTTPS kullan\u0131m\u0131, Google s\u0131ralamas\u0131nda olumlu etki yapar; kullan\u0131c\u0131lar da g\u00fcvenli ba\u011flant\u0131ya daha fazla g\u00fcven duyar.<\/li>\n<\/ul>\n\n\n\n<p><strong>Certbot Kurulumu<\/strong><\/p>\n\n\n\n<p>Let\u2019s Encrypt ile otomatik yenileme yapmak i\u00e7in en pop\u00fcler ara\u00e7 Certbot. \u0130\u015fletim sisteminize g\u00f6re paket y\u00f6neticisiyle kurulum ad\u0131mlar\u0131 a\u015fa\u011f\u0131daki gibi.<\/p>\n\n\n\n<p><strong>Ubuntu \/ Debian<\/strong><\/p>\n\n\n\n<p>bash<\/p>\n\n\n\n<p>KopyalaD\u00fczenle<\/p>\n\n\n\n<p>sudo apt update<\/p>\n\n\n\n<p>sudo apt install certbot python3-certbot-nginx&nbsp;&nbsp; # Nginx kullan\u0131yorsan\u0131z<\/p>\n\n\n\n<p>sudo apt install certbot python3-certbot-apache&nbsp; # Apache kullan\u0131yorsan\u0131z<\/p>\n\n\n\n<p><strong>CentOS \/ RHEL<\/strong><\/p>\n\n\n\n<p>bash<\/p>\n\n\n\n<p>KopyalaD\u00fczenle<\/p>\n\n\n\n<p>sudo yum install epel-release<\/p>\n\n\n\n<p>sudo yum install certbot python3-certbot-nginx&nbsp;&nbsp; # Nginx i\u00e7in<\/p>\n\n\n\n<p>sudo yum install certbot python3-certbot-apache&nbsp; # Apache i\u00e7in<\/p>\n\n\n\n<p>Kurulum tamamland\u0131ktan sonra, a\u015fa\u011f\u0131daki komutla sertifikan\u0131z\u0131 ilk kez olu\u015fturabilirsiniz. \u00d6rnek Nginx:<\/p>\n\n\n\n<p>bash<\/p>\n\n\n\n<p>KopyalaD\u00fczenle<\/p>\n\n\n\n<p>sudo certbot &#8211;nginx -d ornek-site.com -d www.ornek-site.com<\/p>\n\n\n\n<p>Apache i\u00e7in:<\/p>\n\n\n\n<p>bash<\/p>\n\n\n\n<p>KopyalaD\u00fczenle<\/p>\n\n\n\n<p>sudo certbot &#8211;apache -d ornek-site.com -d www.ornek-site.com<\/p>\n\n\n\n<p>Bu a\u015famada Certbot otomatik olarak web sunucusu yap\u0131land\u0131rman\u0131z\u0131 alg\u0131lar, gerekli d\u00fczenlemeleri yapar ve HTTPS y\u00f6nlendirmesini sa\u011flar.<\/p>\n\n\n\n<p><strong>Otomatik Yenileme \u0130\u00e7in Cronjob Ayar\u0131<\/strong><\/p>\n\n\n\n<p>Certbot, varsay\u0131lan olarak kuruldu\u011funda \/etc\/cron.d\/certbot dosyas\u0131n\u0131 ekleyerek g\u00fcnde iki kez yenileme kontrol\u00fc yapar. Ancak \u00f6zel ihtiya\u00e7lar\u0131n\u0131za g\u00f6re kendi cronjob\u2019unuzu da tan\u0131mlayabilirsiniz.<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>Cron d\u00fczenleyicisini a\u00e7\u0131n:<\/li>\n<\/ol>\n\n\n\n<p>bash<\/p>\n\n\n\n<p>KopyalaD\u00fczenle<\/p>\n\n\n\n<p>sudo crontab -e<\/p>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>A\u015fa\u011f\u0131daki sat\u0131r\u0131 ekleyin:<\/li>\n<\/ol>\n\n\n\n<p>cron<\/p>\n\n\n\n<p>KopyalaD\u00fczenle<\/p>\n\n\n\n<p>0 3 * * * certbot renew &#8211;quiet &#8211;post-hook &#8220;systemctl reload nginx&#8221;<\/p>\n\n\n\n<p>Burada:<\/p>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>0 3 * * * ifadesi her gece saat 03:00\u2019te \u00e7al\u0131\u015ft\u0131rmay\u0131 belirtir.<\/li>\n\n\n\n<li>&#8211;quiet sadece hata durumunda \u00e7\u0131kt\u0131 verir.<\/li>\n\n\n\n<li>&#8211;post-hook &#8220;systemctl reload nginx&#8221; komutuyla yenilemeden sonra Nginx yeniden y\u00fcklenir. Apache kullan\u0131yorsan\u0131z systemctl reload apache2 ya da systemctl reload httpd yazabilirsiniz.<\/li>\n<\/ol>\n\n\n\n<p><strong>Systemd Timer ile Otomasyon<\/strong><\/p>\n\n\n\n<p>E\u011fer sunucunuzda systemd timer kullanmay\u0131 tercih ediyorsan\u0131z, hem cronjob y\u00f6netimine gerek kalmaz hem de zamanlama daha okunakl\u0131 olur.<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>Timer dosyas\u0131n\u0131 olu\u015fturun:<\/li>\n<\/ol>\n\n\n\n<p>bash<\/p>\n\n\n\n<p>KopyalaD\u00fczenle<\/p>\n\n\n\n<p>sudo tee \/etc\/systemd\/system\/certbot-renew.timer &lt;&lt;EOF<\/p>\n\n\n\n<p>[Unit]<\/p>\n\n\n\n<p>Description=Certbot renew timer<\/p>\n\n\n\n<p>[Timer]<\/p>\n\n\n\n<p>OnCalendar=daily<\/p>\n\n\n\n<p>Persistent=true<\/p>\n\n\n\n<p>[Install]<\/p>\n\n\n\n<p>WantedBy=timers.target<\/p>\n\n\n\n<p>EOF<\/p>\n\n\n\n<ol start=\"2\" class=\"wp-block-list\">\n<li>Servis dosyas\u0131n\u0131 ekleyin:<\/li>\n<\/ol>\n\n\n\n<p>bash<\/p>\n\n\n\n<p>KopyalaD\u00fczenle<\/p>\n\n\n\n<p>sudo tee \/etc\/systemd\/system\/certbot-renew.service &lt;&lt;EOF<\/p>\n\n\n\n<p>[Unit]<\/p>\n\n\n\n<p>Description=Certbot renew service<\/p>\n\n\n\n<p>[Service]<\/p>\n\n\n\n<p>Type=oneshot<\/p>\n\n\n\n<p>ExecStart=\/usr\/bin\/certbot renew &#8211;quiet &#8211;post-hook &#8220;systemctl reload nginx&#8221;<\/p>\n\n\n\n<p>EOF<\/p>\n\n\n\n<ol start=\"3\" class=\"wp-block-list\">\n<li>Timer\u2019\u0131 etkinle\u015ftirin ve ba\u015flat\u0131n:<\/li>\n<\/ol>\n\n\n\n<p>bash<\/p>\n\n\n\n<p>KopyalaD\u00fczenle<\/p>\n\n\n\n<p>sudo systemctl enable certbot-renew.timer<\/p>\n\n\n\n<p>sudo systemctl start certbot-renew.timer<\/p>\n\n\n\n<p>systemctl list-timers komutuyla zamanlay\u0131c\u0131n\u0131z\u0131 ve bir sonraki \u00e7al\u0131\u015ft\u0131rma zaman\u0131n\u0131 g\u00f6rebilirsiniz.<\/p>\n\n\n\n<p><strong>Web Sunucusu Entegrasyonu<\/strong><\/p>\n\n\n\n<p>Otomatik yenileme sonras\u0131 web sunucusunun yeniden y\u00fcklenmesi, yeni sertifikan\u0131n aktif hale gelmesi i\u00e7in kritik. A\u015fa\u011f\u0131da Nginx ve Apache \u00f6rnekleri var.<\/p>\n\n\n\n<p><strong>Nginx<\/strong><\/p>\n\n\n\n<p>Nginx konfig\u00fcrasyonunuzda sertifika yollar\u0131 \u015fu \u015fekilde tan\u0131mlanm\u0131\u015f olmal\u0131:<\/p>\n\n\n\n<p>nginx<\/p>\n\n\n\n<p>KopyalaD\u00fczenle<\/p>\n\n\n\n<p>server {<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; listen 80;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; server_name ornek-site.com www.ornek-site.com;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; return 301 https:\/\/$host$request_uri;<\/p>\n\n\n\n<p>}<\/p>\n\n\n\n<p>server {<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; listen 443 ssl http2;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; server_name ornek-site.com www.ornek-site.com;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; ssl_certificate&nbsp;&nbsp;&nbsp;&nbsp; \/etc\/letsencrypt\/live\/ornek-site.com\/fullchain.pem;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; ssl_certificate_key \/etc\/letsencrypt\/live\/ornek-site.com\/privkey.pem;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; include&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \/etc\/letsencrypt\/options-ssl-nginx.conf;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; ssl_dhparam&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \/etc\/letsencrypt\/ssl-dhparams.pem;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; root \/var\/www\/ornek-site;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; index index.html index.php;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; \u2026<\/p>\n\n\n\n<p>}<\/p>\n\n\n\n<p>Yenilemeden sonra \u00e7al\u0131\u015facak komut:<\/p>\n\n\n\n<p>bash<\/p>\n\n\n\n<p>KopyalaD\u00fczenle<\/p>\n\n\n\n<p>systemctl reload nginx<\/p>\n\n\n\n<p><strong>Apache<\/strong><\/p>\n\n\n\n<p>Apache yap\u0131land\u0131rmas\u0131nda &lt;VirtualHost&gt; blo\u011fu i\u00e7inde:<\/p>\n\n\n\n<p>apache<\/p>\n\n\n\n<p>KopyalaD\u00fczenle<\/p>\n\n\n\n<p>&lt;VirtualHost *:443&gt;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; ServerName ornek-site.com<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; DocumentRoot \/var\/www\/ornek-site<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; SSLEngine on<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; SSLCertificateFile&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \/etc\/letsencrypt\/live\/ornek-site.com\/fullchain.pem<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; SSLCertificateKeyFile&nbsp;&nbsp; \/etc\/letsencrypt\/live\/ornek-site.com\/privkey.pem<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; Include&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \/etc\/letsencrypt\/options-ssl-apache.conf<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; \u2026<\/p>\n\n\n\n<p>&lt;\/VirtualHost&gt;<\/p>\n\n\n\n<p>Apache\u2019yi yenilemek i\u00e7in:<\/p>\n\n\n\n<p>bash<\/p>\n\n\n\n<p>KopyalaD\u00fczenle<\/p>\n\n\n\n<p>systemctl reload apache2&nbsp;&nbsp; # Debian\/Ubuntu<\/p>\n\n\n\n<p># veya<\/p>\n\n\n\n<p>systemctl reload httpd&nbsp;&nbsp;&nbsp;&nbsp; # CentOS\/RHEL<\/p>\n\n\n\n<p><strong>Olas\u0131 Sorunlar ve \u00c7\u00f6z\u00fcmleri<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Firewall engeli:<\/strong> Port 80 ve 443 a\u00e7\u0131k de\u011filse yenileme ba\u015far\u0131s\u0131z olabilir. UFW kullan\u0131yorsan\u0131z sudo ufw allow 80,443\/tcp komutuyla gerekli izinleri verin.<\/li>\n\n\n\n<li><strong>DNS g\u00fcncellemeleri:<\/strong> Yeni domain ekledi\u011finizde AAAA veya A kay\u0131tlar\u0131n\u0131n yay\u0131lmas\u0131 zaman alabilir. Bu durumda \u201cchallenge\u201d do\u011frulamas\u0131 ba\u015far\u0131s\u0131z olabilir; DNS TTL\u2019lerini kontrol edin.<\/li>\n\n\n\n<li><strong>Yetki hatalar\u0131:<\/strong> Certbot\u2019un \u00e7al\u0131\u015ft\u0131\u011f\u0131 kullan\u0131c\u0131 gerekli dosyalara eri\u015femiyorsa Permission denied hatas\u0131 alabilirsiniz. Sertifika dizinleri genellikle root alt\u0131nda oldu\u011fundan komutlar\u0131 sudo ile \u00e7al\u0131\u015ft\u0131r\u0131n.<\/li>\n\n\n\n<li><strong>Cronjob \u00e7\u0131kt\u0131lar\u0131n\u0131 g\u00f6rmek:<\/strong> &#8211;quiet yerine &#8211;debug veya &#8211;verbose ile detayl\u0131 rapor alabilirsiniz.<\/li>\n<\/ul>\n\n\n\n<p><strong>\u0130zleme ve Bildirim<\/strong><\/p>\n\n\n\n<p>Yenileme i\u015flemlerinde hata olmas\u0131 durumunda hemen haberdar olmak faydal\u0131. Basit bir mail bildirimi i\u00e7in cronjob\u2019a \u015fu parametre eklenebilir:<\/p>\n\n\n\n<p>cron<\/p>\n\n\n\n<p>KopyalaD\u00fczenle<\/p>\n\n\n\n<p>0 3 * * * certbot renew &#8211;post-hook &#8220;systemctl reload nginx&#8221; 2&gt;&amp;1 | mail -s &#8220;Certbot Yenileme Raporu&#8221; you@example.com<\/p>\n\n\n\n<p>Daha kurumsal bir \u00e7\u00f6z\u00fcm istiyorsan\u0131z Prometheus ve Grafana entegrasyonu ya da \u00fc\u00e7\u00fcnc\u00fc taraf izleme ara\u00e7lar\u0131 ile yenileme ad\u0131m\u0131n\u0131 takip edebilirsiniz.<\/p>\n\n\n\n<p><strong>Sonu\u00e7 ve \u0130pu\u00e7lar\u0131<\/strong><\/p>\n\n\n\n<p>Let\u2019s Encrypt ile otomatik yenileme sistemi kurmak, web sitenizin kesintisiz olarak g\u00fcvenli kalmas\u0131n\u0131 sa\u011flar. \u00d6zetle:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>Certbot\u2019u sunucunuza kurun ve ilk sertifikay\u0131 al\u0131n.<\/li>\n\n\n\n<li>Cronjob veya systemd timer ile her g\u00fcn yenileme kontrol\u00fc yap\u0131n.<\/li>\n\n\n\n<li>Yenileme sonras\u0131 web sunucusunu yeniden y\u00fckleyecek komutu ekleyin.<\/li>\n\n\n\n<li>Firewall ve DNS ayarlar\u0131n\u0131z\u0131 g\u00f6zden ge\u00e7irin.<\/li>\n\n\n\n<li>\u0130zleme mekanizmalar\u0131yla hata durumlar\u0131nda h\u0131zl\u0131ca m\u00fcdahale edin.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Let\u2019s Encrypt ile Otomatik SSL Sertifika Yenileme Rehberi G\u00fcn\u00fcm\u00fczde web sitenizin g\u00fcvenli\u011fini sa\u011flamak, kullan\u0131c\u0131 verilerini korumak ve arama motorlar\u0131nda \u00f6n plana \u00e7\u0131kmak i\u00e7in HTTPS kullanmak neredeyse zorunlu hale geldi. Let\u2019s Encrypt, \u00fccretsiz ve a\u00e7\u0131k kaynakl\u0131 SSL sertifikalar\u0131 sunarak bu s\u00fcreci herkes i\u00e7in eri\u015filebilir k\u0131l\u0131yor. Ancak bir sertifika ald\u0131\u011f\u0131n\u0131zda s\u00fcresi 90 g\u00fcnle s\u0131n\u0131rl\u0131; zaman\u0131nda yenilemezseniz siteniz [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":447,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ub_ctt_via":"","footnotes":""},"categories":[74,20,73],"tags":[],"class_list":["post-385","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-domain-alan-adi-yonetimi","category-hosting","category-seo-dijital-pazarlama"],"featured_image_src":"https:\/\/hostvera.com.tr\/blog\/wp-content\/uploads\/2025\/04\/Lets-Encrypt-ile-Otomatik-SSL-Sertifika-1-scaled.png","author_info":{"display_name":"admin","author_link":"https:\/\/hostvera.com.tr\/blog\/author\/hostvera\/"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Web Siteniz \u0130\u00e7in \u00dccretsiz ve Otomatik SSL Sertifikas\u0131 Kurulumu (Let\u2019s Encrypt)<\/title>\n<meta name=\"description\" content=\"Let\u2019s Encrypt kullanarak sitenize g\u00fcvenli HTTPS ba\u011flant\u0131s\u0131 ekleyin. 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