{"id":2588,"date":"2020-12-28T16:14:18","date_gmt":"2020-12-28T08:14:18","guid":{"rendered":"https:\/\/www.gbase8.cn\/?p=2588"},"modified":"2021-04-12T11:55:35","modified_gmt":"2021-04-12T03:55:35","slug":"linux-redhat-7-sshd-%e6%8c%87%e5%ae%9asha256%e5%af%86%e9%92%a5%e7%ae%97%e6%b3%95hmac-sha2-256","status":"publish","type":"post","link":"https:\/\/www.gbase8.cn\/en\/2588","title":{"rendered":"Linux Red Hat 7: Specify SHA256 as HMAC Algorithm for SSHD (hmac-sha2-256)"},"content":{"rendered":"<p>redhat 7 \u7684openssh \u9ed8\u8ba4sshd\u662f\u53ef\u4ee5\u7528sha1\u7b97\u6cd5\u7684\uff0c\u5904\u4e8e\u5b89\u5168\u8003\u8651\uff0c\u5347\u7ea7\u5230sha256\u7b97\u6cd5\u3002\u672c\u6587\u4ecb\u7ecd\u5b89\u5168\u52a0\u56fa\u7684\u65b9\u6848\u3002\u53e6\u5916\uff0c\u5728openssh 8.5\u7248\u672c\u91cc\uff0c\u5df2\u7ecf\u53bb\u6389\u4e86sha1\u7b97\u6cd5\uff0c\u5bf9\u5e94\u7684\u53d8\u52a8\u8bf7\u770b\u53c2\u8003\u8fde\u63a5\u3002<\/p>\n\n\n\n<p>redhat 6\u5bf9\u5e94\u7684openssh\u7248\u672c\u592a\u4f4e\uff0c\u4e0d\u652f\u6301sha256\u3002<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Directory Navigation<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a2a942a75365\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a2a942a75365\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.gbase8.cn\/en\/2588\/#%E5%8F%82%E8%80%83\" >\u53c2\u8003<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.gbase8.cn\/en\/2588\/#%E4%BF%AE%E6%94%B9%E9%85%8D%E7%BD%AE%E6%96%87%E4%BB%B6\" >\u4fee\u6539\u914d\u7f6e\u6587\u4ef6<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.gbase8.cn\/en\/2588\/#%E9%87%8D%E5%90%AF%E6%9C%8D%E5%8A%A1\" >\u91cd\u542f\u670d\u52a1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.gbase8.cn\/en\/2588\/#%E5%8F%82%E8%80%83-2\" >\u53c2\u8003<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%8F%82%E8%80%83\"><\/span>\u53c2\u8003<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><a href=\"https:\/\/www.gbase8.cn\/en\/5280\/\">GBase 8a\u5728openssh 8.5p1\u7248\u672csftp\u52a0\u8f7d\u62a5Failed initialization\u9519\u8bef\u539f\u56e0\u548c\u89e3\u51b3\u65b9\u6848<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E4%BF%AE%E6%94%B9%E9%85%8D%E7%BD%AE%E6%96%87%E4%BB%B6\"><\/span>\u4fee\u6539\u914d\u7f6e\u6587\u4ef6<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\/etc\/ssh\/sshd_config<\/p>\n\n\n\n<p>\u589e\u52a0\u5982\u4e0b\u53c2\u6570<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>MACs hmac-sha2-256,hmac-sha2-256-etm@openssh.com\n<\/code><\/pre>\n\n\n\n<p>\u6548\u679c\u5982\u4e0b<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"485\" height=\"186\" src=\"https:\/\/www.gbase8.cn\/wp-content\/uploads\/2020\/12\/image-13.png\" alt=\"\" class=\"wp-image-2589\"\/><\/figure>\n\n\n\n<p>\u5df2\u77e5\u7684\u53c2\u6570\u5217\u8868\u5982\u4e0b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>hmac-sha1\nhmac-sha1-96\nhmac-md5\nhmac-md5-96\nhmac-sha2-256\nhmac-ripemd160\nhmac-ripemd160@openssh.com\nhmac-sha1-etm@openssh.com\nhmac-sha1-96-etm@openssh.com\nhmac-md5-etm@openshh.com\nhmac-md5-96-etm@openssh.com\nhmac-sha2-256-etm@openssh.com\nhmac-sha2-512\nhmac-sha-512-etm@openssh.com<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E9%87%8D%E5%90%AF%E6%9C%8D%E5%8A%A1\"><\/span>\u91cd\u542f\u670d\u52a1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>&#91;root@gbase_rh7_001 gbase]# systemctl restart sshd.service\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%8F%82%E8%80%83-2\"><\/span>\u53c2\u8003<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-\u8001\u7d2b\u7af9\u7684\u5bb6 wp-block-embed-\u8001\u7d2b\u7af9\u7684\u5bb6\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"C7CPBf2GmU\"><a href=\"https:\/\/www.gbase8.cn\/en\/2591\/\">GBase 8a\u5728\u7528\u8fc7sftp\u52a0\u8f7d\u65f6\uff0c\u7531\u4e8esha256\u539f\u56e0\u5bfc\u81f4\u62a5\u9519 ERROR 1733 (HY000): (GBA-01EX-700) Gbase general error: I\/O operation on sftp failed with error &#8211; Failed initialization, File name<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"\u300aGBase 8a\u5728\u7528\u8fc7sftp\u52a0\u8f7d\u65f6\uff0c\u7531\u4e8esha256\u539f\u56e0\u5bfc\u81f4\u62a5\u9519 ERROR 1733 (HY000): (GBA-01EX-700) Gbase general error: I\/O operation on sftp failed with error &#8211; Failed initialization, File name\u300b\u2014\u8001\u7d2b\u7af9\u7684\u5bb6\" src=\"https:\/\/www.gbase8.cn\/2591\/embed#?secret=C7CPBf2GmU\" data-secret=\"C7CPBf2GmU\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><\/figure>","protected":false},"excerpt":{"rendered":"<p>redhat 7 \u7684openssh \u9ed8\u8ba4sshd\u662f\u53ef\u4ee5\u7528sha1\u7b97\u6cd5\u7684\uff0c\u5904\u4e8e\u5b89\u5168\u8003\u8651\uff0c\u5347\u7ea7\u5230sha256\u7b97\u6cd5\u3002\u672c\u6587\u4ecb\u7ecd\u5b89\u5168\u52a0\u56fa\u7684\u65b9\u6848\u3002<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[72,76],"class_list":["post-2588","post","type-post","status-publish","format-standard","hentry","category-1","tag-linux","tag-76"],"_links":{"self":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/2588","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/comments?post=2588"}],"version-history":[{"count":6,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/2588\/revisions"}],"predecessor-version":[{"id":8455,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/posts\/2588\/revisions\/8455"}],"wp:attachment":[{"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/media?parent=2588"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/categories?post=2588"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gbase8.cn\/en\/wp-json\/wp\/v2\/tags?post=2588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}