{"id":41563,"date":"2016-06-15T13:43:28","date_gmt":"2016-06-15T05:43:28","guid":{"rendered":"http:\/\/www.xyryd.com\/?p=41563"},"modified":"2019-12-25T15:31:27","modified_gmt":"2019-12-25T07:31:27","slug":"%e6%9f%a5%e7%9c%8bip%e7%a0%b4%e8%a7%a3linux-ssh%e5%af%86%e7%a0%81%e4%bb%a5%e5%8f%8a%e5%b0%9d%e8%af%95%e6%ac%a1%e6%95%b0-%e9%99%90%e5%88%b6ssh%e7%99%bb%e5%bd%95%e6%ac%a1%e6%95%b0","status":"publish","type":"post","link":"http:\/\/www.xyryd.com\/41563.html","title":{"rendered":"\u67e5\u770bip\u7834\u89e3linux ssh\u5bc6\u7801\u4ee5\u53ca\u5c1d\u8bd5\u6b21\u6570 \u9650\u5236SSH\u767b\u5f55\u6b21\u6570"},"content":{"rendered":"\n<p>\u5728\u4e92\u8054\u7f51\u4e2d,\u603b\u6709\u4e00\u4e9b\u65e0\u804a\u7684\u4eba,\u6bcf\u5929\u4e0d\u65ad\u7684\u731c\u89e3\u522b\u4eba\u670d\u52a1\u5668\u7684\u5bc6\u7801!\u4f5c\u4e3alinux\u670d\u52a1\u5668\u7684\u7ba1\u7406\u5458\uff0c\u6211\u4eec\u5e94\u8be5\u4e86\u89e3\u54ea\u4e9bIP\u7ecf\u5e38\u4e0d\u65ad\u5730\u626b\u63cf\u6211\u4eec\u7684SSH\u7aef\u53e3\u4ee5\u5c1d\u8bd5\u66b4\u529b\u7834\u89e3\uff0c\u4e0b\u9762\u6211\u4eec\u7528\u4e00\u6761\u547d\u4ee4\u7b80\u5355\u5217\u51fa\u54ea\u4e9bIP\u7834\u89e3\u4f60SSH\u5bc6\u7801\u4ee5\u53ca\u6b21\u6570\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">cat \/var\/log\/secure | awk '\/Failed\/{print $(NF-3)}' | sort | uniq -c | awk '{print $2\" = \"$1;}'<\/pre>\n\n\n\n<figure class=\"wp-block-image\"><\/figure>\n\n\n\n<p>\u4e0a\u9762\u56fe\u7247\u5c31\u662f\u626b\u63cf\u672c\u7ad9SSH\u5bc6\u7801\u7684IP\u4ee5\u53ca\u626b\u63cf\u6b21\u6570!<br>\u8fd9\u91cc\u8fd8\u662f\u5efa\u8bae\u5927\u5bb6\u4fee\u6539\u4e00\u4e0b\u670d\u52a1\u5668\u7684\u8fdc\u7a0b\u8fde\u63a5\u7aef\u53e3,\u4ee5\u514d\u88ab\u771f\u7684\u626b\u63cf\u5230\u4f60\u7684\u5bc6\u7801\u5f71\u54cd\u670d\u52a1\u5668\u7684\u5b89\u5168!\u6709\u6761\u4ef6\u7684\u8bdd\u53ef\u4ee5\u53ea\u5141\u8bb8\u56fa\u5b9a\u7684IP\u53ef\u4ee5\u8fde\u63a5SSH\u8fdc\u7a0b\u8fde\u63a5\u7aef\u53e3\uff0c\u8fd9\u6837\u4f1a\u5b89\u5168\u5f88\u591a\u3002\u4e5f\u53ef\u4ee5\u81ea\u5df1\u5199\u4e00\u4e2a\u811a\u672c\u5728\u8fde\u7eed\u626b\u63cf\u6b21\u6570\u8fbe\u5230\u6307\u5b9a\u503c\u65f6\u5c06IP\u52a0\u5165\u6587\u4ef6hosts.deny\u4e2d\u5e76\u5728hosts.allow\u4e2d\u5f00\u542f\u5bf9sshd\u7684\u8fc7\u6ee4\u6bd4\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sshd : \/etc\/hosts.deny : deny\nsshd : ALL : allow\n<\/pre>\n\n\n\n<p>\u8fd9\u6837\u7684\u8bdd\u5bc6\u7801\u8f93\u5165\u9519\u8bef\u6b21\u6570\u8fc7\u591a\u540e\uff0c\u5c31\u81ea\u52a8\u88ab\u670d\u52a1\u5668\u6321\u5728\u5916\u9762\u6765\u5b9e\u73b0\u5b89\u5168\u914d\u7f6e.<\/p>\n\n\n\n<p>ssh\u8ba4\u8bc1\u6b21\u6570\u9650\u5236\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">vim \/etc\/ssh\/sshd_config\n\nMaxAuthTries=3  #\u8fd9\u4ec5\u662f\u8d85\u8fc73\u6b21\u9a8c\u8bc1\u9519\u8bef\u65ad\u5f00\u8fde\u63a5\u3002<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u4e92\u8054\u7f51\u4e2d,\u603b\u6709\u4e00\u4e9b\u65e0\u804a\u7684\u4eba,\u6bcf\u5929\u4e0d\u65ad\u7684\u731c\u89e3\u522b\u4eba\u670d\u52a1\u5668\u7684\u5bc6\u7801!\u4f5c\u4e3alinux\u670d\u52a1\u5668\u7684\u7ba1\u7406\u5458\uff0c\u6211\u4eec\u5e94\u8be5\u4e86\u89e3\u54ea\u4e9bI [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":43082,"comment_status":"open","ping_status":"closed","sticky":false,"template":"single-with-sidebar","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[17,31],"aioseo_notices":[],"_links":{"self":[{"href":"http:\/\/www.xyryd.com\/wp-json\/wp\/v2\/posts\/41563"}],"collection":[{"href":"http:\/\/www.xyryd.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.xyryd.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.xyryd.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.xyryd.com\/wp-json\/wp\/v2\/comments?post=41563"}],"version-history":[{"count":0,"href":"http:\/\/www.xyryd.com\/wp-json\/wp\/v2\/posts\/41563\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.xyryd.com\/wp-json\/wp\/v2\/media\/43082"}],"wp:attachment":[{"href":"http:\/\/www.xyryd.com\/wp-json\/wp\/v2\/media?parent=41563"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.xyryd.com\/wp-json\/wp\/v2\/categories?post=41563"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.xyryd.com\/wp-json\/wp\/v2\/tags?post=41563"}],"curies":[{"name":"wp","href":"http:\/\/api.w.org\/{rel}","templated":true}]}}