{"id":6397,"date":"2026-08-01T01:02:34","date_gmt":"2026-07-31T23:02:34","guid":{"rendered":"https:\/\/www.hostx.ro\/kb\/"},"modified":"2026-08-01T01:02:34","modified_gmt":"2026-07-31T23:02:34","password":"","slug":"cum-testez-conectivitatea-unui-port-cu-telnet-si-netcat","status":"publish","type":"docs","link":"https:\/\/www.hostx.ro\/kb\/cum-testez-conectivitatea-unui-port-cu-telnet-si-netcat\/","title":{"rendered":"Cum testez conectivitatea unui port cu telnet \u0219i netcat?"},"content":{"rendered":"<p>C\u00e2nd un serviciu (server web, mail, baze de date) pare inaccesibil, un test rapid este s\u0103 verifici dac\u0103 <strong>portul<\/strong> s\u0103u este deschis \u0219i accesibil. Comenzile <code>telnet<\/code> \u0219i <code>netcat<\/code> (<code>nc<\/code>) sunt ideale pentru asta.<\/p>\n<h3>Test cu telnet<\/h3>\n<pre><code>telnet domeniul.tld 443<\/code><\/pre>\n<ul>\n<li>dac\u0103 apare <em>\u201eConnected to&#8230;&#8221;<\/em> \u2014 portul este deschis \u0219i accesibil;<\/li>\n<li>dac\u0103 r\u0103m\u00e2ne blocat sau apare <em>\u201eConnection refused \/ timed out&#8221;<\/em> \u2014 portul este \u00eenchis, filtrat de firewall sau serviciul nu ruleaz\u0103.<\/li>\n<\/ul>\n<p>Pe Windows, clientul Telnet trebuie activat: <em>Control Panel \u2192 Programs \u2192 Turn Windows features on or off \u2192 Telnet Client<\/em>.<\/p>\n<h3>Test cu netcat (nc)<\/h3>\n<p>netcat este mai flexibil \u0219i ofer\u0103 un rezultat clar cu op\u021biunea <code>-zv<\/code> (scaneaz\u0103 f\u0103r\u0103 a trimite date, verbose):<\/p>\n<pre><code>nc -zv domeniul.tld 443\r\nnc -zv domeniul.tld 25       # SMTP\r\nnc -zv domeniul.tld 3306     # MySQL<\/code><\/pre>\n<p>Po\u021bi testa \u0219i un interval de porturi:<\/p>\n<pre><code>nc -zv domeniul.tld 20-25<\/code><\/pre>\n<h3>La ce te ajut\u0103<\/h3>\n<p>Aceste teste separ\u0103 problemele de re\u021bea\/firewall de problemele aplica\u021biei: dac\u0103 portul este deschis dar serviciul nu r\u0103spunde corect, problema este \u00een aplica\u021bie; dac\u0103 portul e \u00eenchis, verific\u0103 firewall-ul (CSF\/firewalld) sau dac\u0103 serviciul ruleaz\u0103.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>C\u00e2nd un serviciu (server web, mail, baze de date) pare inaccesibil, un test rapid este s\u0103 verifici dac\u0103 portul s\u0103u este deschis \u0219i accesibil. Comenzile telnet \u0219i netcat (nc) sunt ideale pentru asta. Test cu telnet telnet domeniul.tld 443 dac\u0103 apare \u201eConnected to&#8230;&#8221; \u2014 portul este deschis \u0219i accesibil; dac\u0103 r\u0103m\u00e2ne blocat sau apare \u201eConnection &#8230; <a title=\"Cum testez conectivitatea unui port cu telnet \u0219i netcat?\" class=\"read-more\" href=\"https:\/\/www.hostx.ro\/kb\/cum-testez-conectivitatea-unui-port-cu-telnet-si-netcat\/\" aria-label=\"Cite\u0219te mai multe despre Cum testez conectivitatea unui port cu telnet \u0219i netcat?\">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":[201],"doc_tag":[348,278,243,289,304,240,300],"class_list":["post-6397","docs","type-docs","status-publish","hentry","doc_category-linux","doc_tag-diagnostic","doc_tag-firewall","doc_tag-linia-de-comanda","doc_tag-linux","doc_tag-server","doc_tag-ssh","doc_tag-terminal"],"year_month":"2026-08","word_count":182,"total_views":"2","reactions":{"happy":"0","normal":"0","sad":"0"},"author_info":{"name":"benyhill","author_nicename":"benyhill","author_url":"https:\/\/www.hostx.ro\/kb\/author\/benyhill\/"},"doc_category_info":[{"term_name":"Linux","term_url":"https:\/\/www.hostx.ro\/kb\/docs-category\/linux\/"}],"doc_tag_info":[{"term_name":"diagnostic","term_url":"https:\/\/www.hostx.ro\/kb\/docs-tag\/diagnostic\/"},{"term_name":"firewall","term_url":"https:\/\/www.hostx.ro\/kb\/docs-tag\/firewall\/"},{"term_name":"linia de comand\u0103","term_url":"https:\/\/www.hostx.ro\/kb\/docs-tag\/linia-de-comanda\/"},{"term_name":"Linux","term_url":"https:\/\/www.hostx.ro\/kb\/docs-tag\/linux\/"},{"term_name":"server","term_url":"https:\/\/www.hostx.ro\/kb\/docs-tag\/server\/"},{"term_name":"SSH","term_url":"https:\/\/www.hostx.ro\/kb\/docs-tag\/ssh\/"},{"term_name":"terminal","term_url":"https:\/\/www.hostx.ro\/kb\/docs-tag\/terminal\/"}],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Testare conectivitate port cu telnet \u0219i netcat - Centrul de suport HostX<\/title>\n<meta name=\"description\" content=\"Testeaz\u0103 conectivitatea porturilor cu telnet \u0219i netcat. 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