{"id":32641,"date":"2021-05-28T17:30:58","date_gmt":"2021-05-28T21:30:58","guid":{"rendered":"https:\/\/mjtsai.com\/blog\/?p=32641"},"modified":"2021-05-28T17:30:58","modified_gmt":"2021-05-28T21:30:58","slug":"using-curl-for-telnet-testing","status":"publish","type":"post","link":"https:\/\/mjtsai.com\/blog\/2021\/05\/28\/using-curl-for-telnet-testing\/","title":{"rendered":"Using curl for Telnet Testing"},"content":{"rendered":"<p><a href=\"https:\/\/derflounder.wordpress.com\/2021\/05\/23\/using-curl-for-telnet-testing-on-macos-high-sierra-and-later\/\">Rich Trouton<\/a>:<\/p>\n<blockquote cite=\"https:\/\/derflounder.wordpress.com\/2021\/05\/23\/using-curl-for-telnet-testing-on-macos-high-sierra-and-later\/\">\n<p>As part of introducing macOS High Sierra, Apple removed the <a href=\"https:\/\/www.commandlinux.com\/man-page\/man1\/telnet.1.html\">telnet tool<\/a> from macOS. This was part of Apple&rsquo;s overall effort to improve security, as <a href=\"https:\/\/www.ssh.com\/academy\/ssh\/telnet\">telnet does not use encryption and its traffic can be intercepted and read<\/a>. However, <strong>telnet<\/strong> did (and does) serve a useful function as a quick way to check if it is possible to connect to a remote server on a particular port.<\/p>\n<p>While there are alternative tools available for this task (like <a href=\"https:\/\/ss64.com\/osx\/nc.html\">netcat<\/a>), it&rsquo;s also possible to still create a <strong>telnet<\/strong> connection on macOS using another tool: <a href=\"https:\/\/ss64.com\/osx\/curl.html\">curl<\/a><\/p>\n<\/blockquote>","protected":false},"excerpt":{"rendered":"<p>Rich Trouton: As part of introducing macOS High Sierra, Apple removed the telnet tool from macOS. This was part of Apple&rsquo;s overall effort to improve security, as telnet does not use encryption and its traffic can be intercepted and read. However, telnet did (and does) serve a useful function as a quick way to check [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"apple_news_api_created_at":"2021-05-28T21:31:02Z","apple_news_api_id":"789e94d3-1adb-46c0-bdbe-ac86c3fbbe29","apple_news_api_modified_at":"2021-05-28T21:31:02Z","apple_news_api_revision":"AAAAAAAAAAD\/\/\/\/\/\/\/\/\/\/w==","apple_news_api_share_url":"https:\/\/apple.news\/AeJ6U0xrbRsC9vqyGw_u-KQ","apple_news_coverimage":0,"apple_news_coverimage_caption":"","apple_news_is_hidden":false,"apple_news_is_paid":false,"apple_news_is_preview":false,"apple_news_is_sponsored":false,"apple_news_maturity_rating":"","apple_news_metadata":"\"\"","apple_news_pullquote":"","apple_news_pullquote_position":"","apple_news_slug":"","apple_news_sections":"\"\"","apple_news_suppress_video_url":false,"apple_news_use_image_component":false,"footnotes":""},"categories":[2],"tags":[1506,30,1529,1891,476,96],"class_list":["post-32641","post","type-post","status-publish","format-standard","hentry","category-technology","tag-curl","tag-mac","tag-macos-10-13","tag-macos-11-0","tag-networking","tag-web"],"apple_news_notices":[],"_links":{"self":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/32641","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/comments?post=32641"}],"version-history":[{"count":1,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/32641\/revisions"}],"predecessor-version":[{"id":32642,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/32641\/revisions\/32642"}],"wp:attachment":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/media?parent=32641"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/categories?post=32641"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/tags?post=32641"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}