{"id":6400,"date":"2026-08-01T00:49:31","date_gmt":"2026-07-31T22:49:31","guid":{"rendered":"https:\/\/www.hostx.eu\/kb\/"},"modified":"2026-08-01T00:49:31","modified_gmt":"2026-07-31T22:49:31","password":"","slug":"cum-depanez-conexiunile-ssl-tls-cu-openssl","status":"publish","type":"docs","link":"https:\/\/www.hostx.eu\/kb\/cum-depanez-conexiunile-ssl-tls-cu-openssl\/","title":{"rendered":"Cum depanez conexiunile SSL\/TLS cu OpenSSL?"},"content":{"rendered":"<p>Comanda <code>openssl s_client<\/code> deschide o conexiune TLS c\u0103tre un server \u0219i \u00ee\u021bi arat\u0103 exact ce se \u00eent\u00e2mpl\u0103 la handshake: certificatul, lan\u021bul de certificare, protocolul \u0219i cifrul folosit. Este instrumentul de baz\u0103 pentru a depana erori de SSL.<\/p>\n<h3>Conectarea la un server<\/h3>\n<pre><code>openssl s_client -connect domeniul.tld:443 -servername domeniul.tld<\/code><\/pre>\n<p>Parametrul <code>-servername<\/code> trimite <strong>SNI<\/strong> (obligatoriu c\u00e2nd pe acela\u0219i IP sunt mai multe certificate).<\/p>\n<h3>Ce s\u0103 urm\u0103re\u0219ti \u00een rezultat<\/h3>\n<ul>\n<li><strong>Certificate chain<\/strong> \u2014 lan\u021bul de certificare; dac\u0103 lipsesc certificatele intermediare, unii clien\u021bi vor da eroare;<\/li>\n<li><strong>Verify return code<\/strong> \u2014 <code>0 (ok)<\/code> \u00eenseamn\u0103 lan\u021b valid; alte coduri indic\u0103 probleme (ex. <em>unable to get local issuer certificate<\/em> = lan\u021b incomplet);<\/li>\n<li><strong>Protocol \/ Cipher<\/strong> \u2014 versiunea TLS \u0219i cifrul negociat.<\/li>\n<\/ul>\n<h3>Teste utile<\/h3>\n<pre><code># testeaz\u0103 un anumit protocol (util pentru a verifica ce e dezactivat)\r\nopenssl s_client -connect domeniul.tld:443 -tls1_2\r\nopenssl s_client -connect domeniul.tld:443 -tls1_3\r\n\r\n# verific\u0103 certificatul unui server de mail (STARTTLS)\r\nopenssl s_client -connect mail.domeniul.tld:587 -starttls smtp\r\n\r\n# afi\u0219eaz\u0103 doar datele certificatului\r\necho | openssl s_client -connect domeniul.tld:443 -servername domeniul.tld 2&gt;\/dev\/null | openssl x509 -noout -issuer -subject -dates<\/code><\/pre>\n<p>Pentru o verificare vizual\u0103 complet\u0103 a lan\u021bului, folose\u0219te \u0219i instrumentul HostX: <a href=\"https:\/\/www.hostx.eu\/ssl-test\">hostx.eu\/ssl-test<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Comanda openssl s_client deschide o conexiune TLS c\u0103tre un server \u0219i \u00ee\u021bi arat\u0103 exact ce se \u00eent\u00e2mpl\u0103 la handshake: certificatul, lan\u021bul de certificare, protocolul \u0219i cifrul folosit. Este instrumentul de baz\u0103 pentru a depana erori de SSL. Conectarea la un server openssl s_client -connect domeniul.tld:443 -servername domeniul.tld Parametrul -servername trimite SNI (obligatoriu c\u00e2nd pe acela\u0219i &#8230; <a title=\"Cum depanez conexiunile SSL\/TLS cu OpenSSL?\" class=\"read-more\" href=\"https:\/\/www.hostx.eu\/kb\/cum-depanez-conexiunile-ssl-tls-cu-openssl\/\" aria-label=\"Cite\u0219te mai multe despre Cum depanez conexiunile SSL\/TLS cu OpenSSL?\">Cite\u0219te mai mult<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"whmcs_kb_id":0,"footnotes":""},"doc_category":[92],"doc_tag":[241,292,239,237,246],"class_list":["post-6400","docs","type-docs","status-publish","hentry","doc_category-certificate-ssl","doc_tag-certificat","doc_tag-depanare","doc_tag-openssl","doc_tag-ssl","doc_tag-ssl-tls"],"year_month":"2026-08","word_count":202,"total_views":"16","reactions":{"happy":"0","normal":"0","sad":"0"},"author_info":{"name":"benyhill","author_nicename":"benyhill","author_url":"https:\/\/www.hostx.eu\/kb\/author\/benyhill\/"},"doc_category_info":[{"term_name":"Certificate SSL","term_url":"https:\/\/www.hostx.eu\/kb\/docs-category\/certificate-ssl\/"}],"doc_tag_info":[{"term_name":"certificat","term_url":"https:\/\/www.hostx.eu\/kb\/docs-tag\/certificat\/"},{"term_name":"depanare","term_url":"https:\/\/www.hostx.eu\/kb\/docs-tag\/depanare\/"},{"term_name":"OpenSSL","term_url":"https:\/\/www.hostx.eu\/kb\/docs-tag\/openssl\/"},{"term_name":"SSL","term_url":"https:\/\/www.hostx.eu\/kb\/docs-tag\/ssl\/"},{"term_name":"SSL\/TLS","term_url":"https:\/\/www.hostx.eu\/kb\/docs-tag\/ssl-tls\/"}],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Depanare SSL\/TLS cu OpenSSL s_client - Ghid complet - Centrul de suport HostX<\/title>\n<meta name=\"description\" content=\"Depanare conexiuni SSL\/TLS cu OpenSSL: openssl s_client pentru testare handshake, verificare certificat, lan\u021b \u0219i protocol. 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