{"id":554964,"date":"2022-02-16T16:37:09","date_gmt":"2022-02-16T08:37:09","guid":{"rendered":"http:\/\/4563.org\/?p=554964"},"modified":"2022-02-16T16:37:09","modified_gmt":"2022-02-16T08:37:09","slug":"oracle-%e7%9a%84%e4%ba%91%e4%b8%bb%e6%9c%ba%e6%9c%89%e7%9a%84%e6%97%b6%e5%80%99%e4%bc%9a-ssh-%e4%b8%8d%e4%ba%86%ef%bc%8c%e5%a5%87%e6%80%aa%e7%9a%84%e9%97%ae%e9%a2%98%e3%80%82%e3%80%82%e3%80%82-3","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=554964","title":{"rendered":"oracle \u7684\u4e91\u4e3b\u673a\u6709\u7684\u65f6\u5019\u4f1a ssh \u4e0d\u4e86\uff0c\u5947\u602a\u7684\u95ee\u9898\u3002\u3002\u3002"},"content":{"rendered":"<div>\n<div>\n<div>\n<h1> oracle \u7684\u4e91\u4e3b\u673a\u6709\u7684\u65f6\u5019\u4f1a ssh \u4e0d\u4e86\uff0c\u5947\u602a\u7684\u95ee\u9898\u3002\u3002\u3002 <\/h1>\n<p> <\/p>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : dreamramon <\/span>  <span><i><\/i> 25<\/span> <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div isfirst=\"1\"> <\/p>\n<p>\u6628\u665a\u7ecf\u5386\u4e86 40 \u5206\u949f\u7684\u4e00\u4e2a\u5947\u602a\u73b0\u8c61 \u80cc\u666f\uff1aubuntu 20.04 \uff0c\u5df2\u7ecf\u7981\u7528\u4e86 ufw \u3002<\/p>\n<p>1 \uff0c\u65e0\u6cd5\u4ece\u67d0\u4e00\u4e2a ip 10.0.0.81 ssh \u5230 oracle cloud \u7684\u4e00\u4e2a\u5b9e\u4f8b A 10.0.0.84 \u3002\uff08\u8be5\u8bf7\u6c42 ip \u5df2\u7ecf\u5728\u9762\u677f\u7684\u5b89\u5168\u7ec4\u91cc\u9762\u5141\u8bb8\uff09<\/p>\n<pre><code>ssh [email&#160;protected] debug1: identity file \/Users\/xxx\/.ssh\/id_rsa type 0 debug1: identity file \/Users\/xxx\/.ssh\/id_rsa-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_8.1 <\/code><\/pre>\n<p>2 \uff0c\u4ece\u53e6\u5916\u4e00\u4e2a\u5141\u8bb8\u7684 ip 10.0.0.82 \u4e0a\u53bb\u4e4b\u540e\uff0c\u53ef\u4ee5\u6210\u529f ssh \u4e0a\u53bb\uff0c\u7136\u540e \u7528 tcpdump -S -nn port 22 \u76ef\u7740\u770b\u3002 3 \uff0c\u4e8e\u662f\u5728 10.0.0.81 \u4e0a telnet 10.0.0.84 22 \uff0c\u80fd\u770b\u5230 10.0.0.81 \u7684\u6570\u636e\u5305\u8fc7\u6765<\/p>\n<pre><code>15:37:45.783599 IP 10.0.0.81.34358 &gt; 10.0.0.84.22: Flags [S], seq 3574166724, win 62727, options [mss 1460,sackOK,TS val 1397679628 ecr 0,nop,wscale 7], length 0 15:37:45.783654 IP 10.0.0.84.22 &gt; 10.0.0.81.34358: Flags [S.], seq 1134153115, ack 3574166725, win 62636, options [mss 8960,sackOK,TS val 3357698079 ecr 1397679628,nop,wscale 7], length 0 15:37:46.801075 IP 10.0.0.81.34358 &gt; 10.0.0.84.22: Flags [S], seq 3574166724, win 62727, options [mss 1460,sackOK,TS val 1397680646 ecr 0,nop,wscale 7], length 0 15:37:46.801118 IP 10.0.0.84.22 &gt; 10.0.0.81.34358: Flags [S.], seq 1134153115, ack 3574166725, win 62636, options [mss 8960,sackOK,TS val 3357699096 ecr 1397679628,nop,wscale 7], length 0 <\/code><\/pre>\n<p>4 \uff0c\u670d\u52a1\u5668 A \u4e0a\u7684 ssh \u670d\u52a1\u5e94\u8be5\u662f\u6b63\u5e38\u7684\uff0c\u56e0\u4e3a\u6211\u5728 10.0.0.82 \u8fde\u8fc7\u53bb\u7684 session \u91cc\u9762\u5f00\u7740\u770b tail -f \/var\/log\/auth.log \uff0c\u6ca1\u4ec0\u4e48\u5f02\u5e38\u3002\u4f46\u662f 10.0.0.81 \u7684\u8bf7\u6c42\u5728 auth.log \u91cc\u9762\u770b\u4e0d\u5230\uff0c\u8bf4\u660e\u5e94\u8be5\u4e0d\u662f ssh \u7684\u670d\u52a1\u51fa\u95ee\u9898\u4e86\u3002<\/p>\n<p>5 \uff0c\u670d\u52a1\u5668\u662f ubuntu 20.04 \uff0c\u4e0a\u9762\u6ca1\u8fd0\u884c ufw 6 \uff0c\u8fc7\u4e86 30 \u5206\u949f\u4e4b\u540e\uff0c\u5565\u4e8b\u6ca1\u505a\uff0c\u5c31\u6062\u590d\u4e86\u3002\u3002\u3002 7 \uff0c\u8bf7\u6559\u5927\u795e\uff0c\u53ef\u4ee5\u600e\u4e48\u7ee7\u7eed\u6392\u67e5\u4e0b\u5417\uff1f<\/p>\n<\/p><\/div>\n<div> <b>\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (<span>0<\/span>) <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<ul>\n<li>\n","protected":false},"excerpt":{"rendered":"<p>oracle \u7684\u4e91\u4e3b\u673a\u6709\u7684\u65f6\u5019\u4f1a &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/554964"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=554964"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/554964\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=554964"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=554964"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=554964"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}