{"id":19690,"date":"2017-09-02T06:01:32","date_gmt":"2017-09-01T22:01:32","guid":{"rendered":"https:\/\/2blog.ilc.edu.tw\/25793\/2017\/09\/02\/ssh-tunnel\/"},"modified":"2017-09-02T06:01:32","modified_gmt":"2017-09-01T22:01:32","slug":"ssh-tunnel","status":"publish","type":"post","link":"https:\/\/2blog.ilc.edu.tw\/25793\/2017\/09\/02\/ssh-tunnel\/","title":{"rendered":"SSH Tunnel"},"content":{"rendered":"

\u5167\u90e8 IP\uff1a192.168.131.219 Server A
\u5916\u90e8 IP\uff1a140.111.74.17\u00a0\u00a0\u00a0\u00a0\u00a0 Server B
\u5916\u90e8 IP\uff1a1.161.49.150\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Server C<\/p>\n

1. \u5728 Server A \u4e0a\u57f7\u884c
# ssh -NfR 2222:localhost:22 root@140.111.74.17
# ssh -BfR 2222:192.168.131.219 root@140.111.74.17
-N Do not execute a remote command.
-f Requests ssh to go to background just before command execution.
-R [bind_address:]port:host:hostport<\/p>\n

2. \u5728 Server B \u4e0a\u57f7\u884c
# netstat -antp | grep 2222
tcp\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0 0 127.0.0.1:2222\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0.0.0.0:*\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 LISTEN\u00a0\u00a0\u00a0\u00a0\u00a0 519\/sshd: root
tcp6\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0 0 ::1:2222\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 :::*\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 LISTEN\u00a0\u00a0\u00a0\u00a0\u00a0 519\/sshd: root
# ss -antp | grep 2222
LISTEN\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0 128\u00a0\u00a0\u00a0 127.0.0.1:2222\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 *:*\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 users:((“sshd”,pid=519,fd=9))
LISTEN\u00a0\u00a0\u00a0\u00a0 0\u00a0\u00a0\u00a0\u00a0\u00a0 128\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 ::1:2222\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 :::*\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 users:((“sshd”,pid=519,fd=8))<\/p>\n

3. \u5728 Server C \u4e0a\u60f3\u8981\u9023\u7dda\u5230 Server A\uff0c\u5148\u9023\u7dda\u5230 Server B
# ssh root@140.111.74.17
# ssh -p 2222 root@127.0.0.1<\/p>\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5167\u90e8 IP\uff1a192.168.131.219 Server A\u5916\u90e8 IP\uff1a140.111.74.17\u00a0\u00a0\u00a0\u00a0\u00a0 … <\/p>\n

\u95b1\u8b80\u5168\u6587\u3008SSH Tunnel\u3009<\/span><\/a><\/p>\n","protected":false},"author":55,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[139],"tags":[],"class_list":["post-19690","post","type-post","status-publish","format-standard","hentry","category-c-78484"],"meta_key":{"_pingme":["1"],"_encloseme":["1"],"lt_post_id":["688119"]},"_links":{"self":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/posts\/19690"}],"collection":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/users\/55"}],"replies":[{"embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/comments?post=19690"}],"version-history":[{"count":0,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/posts\/19690\/revisions"}],"wp:attachment":[{"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/media?parent=19690"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/categories?post=19690"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/2blog.ilc.edu.tw\/25793\/wp-json\/wp\/v2\/tags?post=19690"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}