{"id":2548,"date":"2019-01-30T09:37:08","date_gmt":"2019-01-30T01:37:08","guid":{"rendered":"http:\/\/116.196.113.144\/?p=2548"},"modified":"2019-02-02T11:08:01","modified_gmt":"2019-02-02T03:08:01","slug":"ssh%e6%97%a0%e6%b3%95%e5%90%af%e5%8a%a8-codeexited-status255","status":"publish","type":"post","link":"https:\/\/www.liangliang.org.cn\/?p=2548","title":{"rendered":"ssh\u65e0\u6cd5\u542f\u52a8 (code=exited, status=255)"},"content":{"rendered":"

\u670d\u52a1\u5668\u8fd0\u884c\u4e86\u4e00\u4e9b\u811a\u672c\u540e\uff0c\u7a81\u7136\u53d1\u73b0\u65e0\u6cd5ssh\u4e86\u3002<\/h3>\n

\"\"<\/p>\n

root@X61T:\/home\/liang# service sshd restart\n<\/span>Job for ssh.service failed because the control process exited with error code.\nSee \"systemctl status ssh.service\" and \"journalctl -xe\" for details.<\/span><\/pre>\n
\u4f7f\u7528systemctl\u68c0\u67e5\u72b6\u6001<\/p>\n
Systemd\u662f\u4e00\u4e2a\u7cfb\u7edf\u7ba1\u7406\u5b88\u62a4\u8fdb\u7a0b\u3001\u5de5\u5177\u548c\u5e93\u7684\u96c6\u5408\uff0c\u7528\u4e8e\u53d6\u4ee3System V\u521d\u59cb\u8fdb\u7a0b\u3002Systemd\u7684\u529f\u80fd\u662f\u7528\u4e8e\u96c6\u4e2d\u7ba1\u7406\u548c\u914d\u7f6e\u7c7bUNIX\u7cfb\u7edf\u3002\u5728Linux\u751f\u6001\u7cfb\u7edf\u4e2d\uff0cSystemd\u88ab\u90e8\u7f72\u5230\u4e86\u5927\u591a\u6570\u7684\u6807\u51c6Linux\u53d1\u884c\u7248\u4e2d\uff0c\u53ea\u6709\u4e3a\u6570\u4e0d\u591a\u7684\u51e0\u4e2a\u53d1\u884c\u7248\u5c1a\u672a\u90e8\u7f72\u3002<\/p>\n
\u5e38\u7528\u7684systemctl\u547d\u4ee4\uff1a<\/p>\n
systemctl list-unit-files\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u5217\u51fa\u6240\u6709\u53ef\u7528\u7684\u5355\u5143
\nsystemctl list-units\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u5217\u51fa\u6240\u6709\u8fd0\u884c\u4e2d\u5355\u5143
\nsystemctl --failed\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u5217\u51fa\u6240\u6709\u5931\u8d25\u5355\u5143
\nsystemctl status firewalld.service\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u68c0\u67e5\u67d0\u4e2a\u5355\u5143\u6216\u670d\u52a1\u662f\u5426\u8fd0\u884c
\nsystemctl list-unit-files --type=service\u00a0 \u00a0 \u5217\u51fa\u6240\u6709\u670d\u52a1\uff08\u542f\u7528\u548c\u7981\u7528\uff09
\nsystemctl start httpd.service\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u542f\u52a8
\nsystemctl restart httpd.service\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u91cd\u542f
\nsystemctl stop httpd.service\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u505c\u6b62
\nsystemctl reload httpd.service\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u91cd\u8f7d\u670d\u52a1
\nsystemctl status httpd.service\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u68c0\u67e5\u72b6\u6001<\/p>\n
\u68c0\u67e5\u4e00\u4e0bssh.service\u7684\u72b6\u6001<\/p>\n
\"\"<\/p>\n
root@X61T:\/home\/liang# systemctl status ssh.service <\/span><\/p>\n
\u53d1\u73b0<\/p>\n
Process: 3448 ExecStart=\/usr\/sbin\/sshd -D $SSHD_OPTS (code=exited, status=255)\nProcess: 3445 ExecStartPre=\/usr\/sbin\/sshd -t (code=exited, status=0\/SUCCESS)\n......\nJan 30 08:18:03 X61T systemd[1]: Starting OpenBSD Secure Shell server...\nJan 30 08:18:03 X61T systemd[1]: ssh.service: Main process exited, code=exited, status=255\/n\/a\nJan 30 08:18:03 X61T systemd[1]: Failed to start OpenBSD Secure Shell server.\nJan 30 08:18:03 X61T systemd[1]: ssh.service: Unit entered failed state.\nJan 30 08:18:03 X61T systemd[1]: ssh.service: Failed with result 'exit-code'.<\/span><\/pre>\n
\u4f7f\u7528journalctl\u8bbf\u95ee\u5185\u90e8\u7684\u6570\u636e<\/h6>\n
root@X61T:\/home\/liang# journalctl -u ssh.service<\/span><\/pre>\n
\"\"<\/p>\n
Jan 30 08:18:03 X61T systemd[1]: Starting OpenBSD Secure Shell server...
\n<\/span>Jan 30 08:18:03 X61T systemd[1]: ssh.service: Main process exited, code=exited,
\n<\/span>Jan 30 08:18:03 X61T systemd[1]: Failed to start OpenBSD Secure Shell server.
\n<\/span>Jan 30 08:18:03 X61T systemd[1]: ssh.service: Unit entered failed state.
\n<\/span>Jan 30 08:18:03 X61T systemd[1]: ssh.service: Failed with result 'exit-code'.
\n<\/span><\/p>\n
systemd\u5c1d\u8bd5\u63d0\u4f9b\u4e00\u5957\u96c6\u4e2d\u5316\u7ba1\u7406\u65b9\u6848\uff0c\u4ece\u800c\u7edf\u4e00\u6253\u7406\u5168\u90e8\u5185\u6838\u53ca\u7528\u6237\u7ea7\u8fdb\u7a0b\u7684\u65e5\u5fd7\u4fe1\u606f\u3002\u8fd9\u5957\u7cfb\u7edf\u80fd\u591f\u6536\u96c6\u5e76\u7ba1\u7406\u65e5\u5fd7\u5185\u5bb9\uff0c\u800c\u8fd9\u4e5f\u5c31\u662fjournal\u3002journal\u7684\u5b9e\u73b0\u5f52\u529f\u4e8ejournald\u5b88\u62a4\u8fdb\u7a0b\uff0c\u5176\u8d1f\u8d23\u5904\u7406\u7531\u5185\u6838\u3001initrd\u4ee5\u53ca\u670d\u52a1\u7b49\u4ea7\u751f\u7684\u4fe1\u606f\u3002<\/p>\n
\u5bf9\u6bd4\u4e00\u4e0b init.d \u548c systemd \uff1a
\n<\/span><\/h6>\n
service daemon-----------------------> rsyslog -----------------------------------> \/var\/log
\n<\/span><\/em><\/strong><\/p>\n
systemd ----------> systemd-journald ---> ram DB ----> rsyslog ----> \/var\/log<\/em><\/strong>
\n<\/span><\/p>\n
\u00a0 \u00a0 \u00a0\u5f53 systemd \u542f\u52a8\u540e\uff0csystemd-journald \u4e5f\u4f1a\u7acb\u5373\u542f\u52a8\u3002\u5c06\u65e5\u5fd7\u5b58\u5165RAM\u4e2d\uff0c\u5f53rsyslog \u542f\u52a8\u540e\u4f1a\u8bfb\u53d6\u8be5RAM\u5e76\u5b8c\u6210\u7b5b\u9009\u5206\u7c7b\u5199\u5165\u76ee\u5f55 \/var\/log \u3002\u5185\u6838\u542f\u52a8\u8fc7\u7a0b\u5c06\u6d88\u606f\u5199\u5165\u5230\u7ed3\u6784\u5316\u7684\u4e8b\u4ef6\u65e5\u5fd7\u4e2d\uff08\u6570\u636e\u5e93\uff09\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u91cd\u542f\u540e\u5220\u9664<\/span>syslog \u7684\u4fe1\u606f\u4e5f\u53ef\u4ee5\u7531 systemd-journald \u8f6c\u53d1\u5230 rsyslog \u4e2d\u8fdb\u4e00\u6b65\u5904\u7406\u9ed8\u8ba4\u60c5\u51b5\u4e0b,systemd \u7684\u65e5\u5fd7\u4fdd\u5b58\u5728 \/run\/log\/journal \u4e2d\uff0c\u7cfb\u7edf\u91cd\u542f\u5c31\u4f1a\u6e05\u9664\uff0c\u8fd9\u662fRHEL7\u7684\u65b0\u7279\u6027\u3002\u901a\u8fc7\u65b0\u5efa \/var\/log\/journal \u76ee\u5f55\uff0c\u65e5\u5fd7\u4f1a\u81ea\u52a8\u8bb0\u5f55\u5230\u8fd9\u4e2a\u76ee\u5f55\u4e2d\uff0c\u5e76\u6c38\u4e45\u5b58\u50a8\u3002rsyslog \u670d\u52a1\u968f\u540e\u6839\u636e\u4f18\u5148\u7ea7\u6392\u5217\u65e5\u5fd7\u4fe1\u606f\uff0c\u5c06\u5b83\u4eec\u5199\u5165\u5230 \/var\/log\u76ee\u5f55\u4e2d\u6c38\u4e45\u4fdd\u5b58\u5e38\u89c4\u64cd\u4f5csystemd\u63d0\u4f9b\u4e86\u81ea\u5df1\u7684\u65e5\u5fd7\u7cfb\u7edf\uff08logging system\uff09\uff0c\u79f0\u4e3a journal\u3002\u4f7f\u7528 systemd \u65e5\u5fd7\uff0c\u65e0\u9700\u989d\u5916\u5b89\u88c5\u65e5\u5fd7\u670d\u52a1\uff08syslog\uff09\u3002<\/p>\n
\u8bfb\u53d6\u65e5\u5fd7\u7684\u547d\u4ee4\uff1a<\/h6>\n
# journalctl<\/p>\n
\u91cd\u8981\uff1a\u663e\u793a\u6240\u6709\u7684\u65e5\u5fd7\u4fe1\u606f\uff0cnotice\u6216warning\u4ee5\u7c97\u4f53\u663e\u793a\uff0c\u7ea2\u8272\u663e\u793aerror\u7ea7\u522b\u4ee5\u4e0a\u7684\u4fe1\u606f<\/p>\n
\u663e\u793a\u6700\u540e\u884c\u6570\u7684\u65e5\u5fd7\uff1a<\/h6>\n
# journalctl -n<\/p>\n
\u663e\u793a\u6700\u8be6\u7ec6\u4fe1\u606f\uff1a<\/h6>\n
# journalctl -f<\/p>\n
\u63d0\u793a\uff1a\u5176\u5b9e\u5b83\u5f88\u50cftailf\u547d\u4ee4\uff0c\u9ed8\u8ba4\u663e\u793a\u5341\u884c\u3002\u968f\u7740\u5339\u914d\u65e5\u5fd7\u7684\u589e\u957f\u800c\u6301\u7eed\u8f93\u51fa\u3002\u53ea\u663e\u793a\u9519\u8bef\u3001\u51b2\u7a81\u548c\u91cd\u8981\u544a\u8b66\u4fe1\u606f<\/p>\n
# journalctl -p err..alert<\/p>\n
\u63d0\u793a\uff1a\u4e5f\u53ef\u4ee5\u4f7f\u7528\u6570\u5b57\u8868\u793a\u54df\u3002<\/pre>\n
\u663e\u793a\u6307\u5b9a\u5355\u5143\u7684\u6240\u6709\u6d88\u606f\uff1a<\/h6>\n
# journalctl -u netcfg<\/p>\n
\u91cd\u8981\uff1a\u4e00\u822c -u \u53c2\u6570\u662f systemctl status \u8c03\u7528\u7684\u53c2\u6570\u4e4b\u4e00\uff08journalctl -l \u53ef\u67e5\u770b\u6240\u6709\uff09\u63d0\u793a\uff1a\u5982\u679c\u5e0c\u671b\u663e\u793a kernel \u7684\u4fe1\u606f\u9700\u8981\u4f7f\u7528 journalctl -k \u8fdb\u884c\u5185\u6838\u73af\u7f13\u5b58\u6d88\u606f\u67e5\u8be2\u3002<\/p>\n
\u663e\u793a\u4ece\u67d0\u4e2a\u65f6\u95f4 ( \u4f8b\u5982 20\u5206\u949f\u524d ) \u7684\u6d88\u606f:<\/h6>\n
# journalctl --since \"20 min ago\"<\/p>\n
# journalctl --since today<\/p>\n
# journalctl --until YYYY-MM-DD<\/p>\n
\u663e\u793a\u672c\u6b21\u542f\u52a8\u540e\u7684\u6240\u6709\u65e5\u5fd7\uff1a<\/h6>\n
# journalctl -b<\/p>\n
\u4e0d\u8fc7\uff0c\u4e00\u822c\u5927\u5bb6\u66f4\u5173\u5fc3\u7684\u4e0d\u662f\u672c\u6b21\u542f\u52a8\u540e\u7684\u65e5\u5fd7\uff0c\u800c\u662f\u4e0a\u6b21\u542f\u52a8\u65f6\u7684\uff08\u4f8b\u5982\uff0c\u521a\u521a\u7cfb\u7edf\u5d29\u6e83\u4e86\uff09\u3002\u53ef\u4ee5\u4f7f\u7528 -b \u53c2\u6570\uff1a<\/p>\n
journalctl -b -0 \u663e\u793a\u672c\u6b21\u542f\u52a8\u7684\u4fe1\u606f<\/p>\n
journalctl -b -1 \u663e\u793a\u4e0a\u6b21\u542f\u52a8\u7684\u4fe1\u606f<\/p>\n
journalctl -b -2 \u663e\u793a\u4e0a\u4e0a\u6b21\u542f\u52a8\u7684\u4fe1\u606f<\/p>\n
journalctl -b -2 \u53ea\u663e\u793a\u9519\u8bef\u3001\u51b2\u7a81\u548c\u91cd\u8981\u544a\u8b66\u4fe1\u606f<\/p>\n
\u663e\u793a\u7279\u5b9a\u8fdb\u7a0b\u7684\u6240\u6709\u6d88\u606f:<\/h6>\n
# journalctl _PID=1<\/p>\n
1. \\_COMM \u663e\u793a\u7279\u5b9a\u7a0b\u5e8f\u7684\u6240\u6709\u6d88\u606f\uff0c\u4f8b\u5982\uff1a``journalctl \/usr\/lib\/systemd\/systemd``
\n2. \\_EXE \u8fdb\u7a0b\u7684\u53ef\u6267\u884c\u6587\u4ef6\u7684\u8def\u5f84
\n3. \\_PID \u8fdb\u7a0b\u7684PID
\n4. \\_UID \u8fd0\u884c\u8be5\u8fdb\u7a0b\u7528\u6237\u7684UID
\n5. _SYSTEMD_UNIT \u542f\u52a8\u8be5\u8fdb\u7a0b\u7684 `systemd` \u5355\u5143
\n\u63d0\u793a\uff1a\u4ee5\u4e0a\u7b5b\u9009\u6761\u4ef6\u53ef\u7ec4\u5408\u4f7f\u7528\uff0c\u4f8b\u5982\uff1ajournalctl _SYSTEMD_UNIT=sshd.service _PID=1182<\/p>\n
\u663e\u793a\u66f4\u591a\u8f93\u51fa\u65b9\u6848\uff1a<\/h6>\n
# journalctl -o short|short-iso|short-percise|short-monotonic|verbose|export|json|json-pretty|json-sse|cat<\/p>\n
\u8fdb\u5165ssh debug\u6a21\u5f0f<\/h6>\n
\"\"<\/p>\n
root@X61T:\/etc\/init.d# \/usr\/sbin\/sshd -d<\/span><\/p>\n
debug1: sshd version OpenSSH_7.4, OpenSSL 1.0.2l \u00a025 May 2017<\/span>
\ndebug1: private host key #0: ssh-rsa SHA256:yXduj8mTB9Lte+8TNQZPaqHtphuCgTcR18BY9jhY7sY<\/span>
\ndebug1: private host key #1: ecdsa-sha2-nistp256 SHA256:kzdqml9P9ocCIKrNalil5lKOZtY9Eshrn6ntfFKEkFk
\n<\/span>debug1: private host key #2: ssh-ed25519 SHA256:nAcGxV9POMZeJxyqOWVsWu1s\/WrvQSyhNDj0sQa90KY
\n<\/span>debug1: rexec_argv[0]='\/usr\/sbin\/sshd'
\n<\/span>debug1: rexec_argv[1]='-d'
\n<\/span>debug1: Set \/proc\/self\/oom_score_adj from 0 to -1000
\n<\/span>debug1: Bind to port 22 on 0.0.0.0.
\n<\/span>Bind to port 22 on 0.0.0.0 failed: Address already in use.
\n<\/span>debug1: Bind to port 22 on ::.
\n<\/span>Bind to port 22 on :: failed: Address already in use.<\/span>
\n<\/span>Cannot bind any address.<\/span><\/p>\n
\u53d1\u73b0\u5c45\u713622\u7aef\u53e3\u88ab\u5360\u7528\u4e86<\/h6>\n
\u7528netstat\u67e5\u51fa\u662f\u8c01\u5728\u5360\u7528\u3002
\n<\/span>root@X61T:\/etc\/init.d# netstat -apn<\/span><\/strong><\/span>
\n<\/span><\/h5>\n
\"\"<\/p>\n
\u5217\u51fa\u6240\u6709\u7aef\u53e3 (\u5305\u62ec\u76d1\u542c\u548c\u672a\u76d1\u542c\u7684)\n<\/span>netstat -a \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0 \u5217\u51fa\u6240\u6709\u7aef\u53e3\n<\/span>netstat -at \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0 \u5217\u51fa\u6240\u6709tcp\u7aef\u53e3\n<\/span>netstat -au \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u5217\u51fa\u6240\u6709udp\u7aef\u53e3<\/span>\n\u5217\u51fa\u6240\u6709\u5904\u4e8e\u76d1\u542c\u72b6\u6001\u7684 Sockets\n<\/span>netstat -l \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u53ea\u663e\u793a\u76d1\u542c\u7aef\u53e3\n<\/span>netstat -lt \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u53ea\u5217\u51fa\u6240\u6709\u76d1\u542c tcp \u7aef\u53e3\n<\/span>netstat -lu \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u53ea\u5217\u51fa\u6240\u6709\u76d1\u542c udp \u7aef\u53e3\n<\/span>netstat -lx \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u53ea\u5217\u51fa\u6240\u6709\u76d1\u542c UNIX \u7aef\u53e3\n<\/span>\u663e\u793a\u6bcf\u4e2a\u534f\u8bae\u7684\u7edf\u8ba1\u4fe1\u606f\n<\/span>netstat -s \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u663e\u793a\u6240\u6709\u7aef\u53e3\u7684\u7edf\u8ba1\u4fe1\u606f\n<\/span>netstat -st \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u663e\u793aTCP\u7aef\u53e3\u7684\u7edf\u8ba1\u4fe1\u606f<\/span>\nnetstat -su \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u663e\u793aUDP\u7aef\u53e3\u7684\u7edf\u8ba1\u4fe1\u606f\n<\/span>\u5728netstat\u8f93\u51fa\u4e2d\u663e\u793a PID \u548c\u8fdb\u7a0b\u540d\u79f0\n<\/span>netstat \u2013pt\n<\/span>\u547d\u4ee4\u5982\u4e0b\uff1a\n<\/span>netstat -pan | grep 5623\n<\/span>#\u5176\u4e2d5623\u4f4d\u7aef\u53e3\u53f7\n<\/span>netstat \u4e2d\u53c2\u6570\u9009\u9879<\/span>\n-a\u6216--all\uff1a\u663e\u793a\u6240\u6709\u8fde\u7ebf\u4e2d\u7684Socket\uff1b\n<\/span>-A<\u7f51\u7edc\u7c7b\u578b>\u6216--<\u7f51\u7edc\u7c7b\u578b>\uff1a\u5217\u51fa\u8be5\u7f51\u7edc\u7c7b\u578b\u8fde\u7ebf\u4e2d\u7684\u76f8\u5173\u5730\u5740\uff1b\n<\/span>-c\u6216--continuous\uff1a\u6301\u7eed\u5217\u51fa\u7f51\u7edc\u72b6\u6001\uff1b<\/span>\n-C\u6216--cache\uff1a\u663e\u793a\u8def\u7531\u5668\u914d\u7f6e\u7684\u5feb\u53d6\u4fe1\u606f\uff1b\n<\/span>-e\u6216--extend\uff1a\u663e\u793a\u7f51\u7edc\u5176\u4ed6\u76f8\u5173\u4fe1\u606f\uff1b\n<\/span>-F\u6216--fib\uff1a\u663e\u793aFIB\uff1b\n<\/span>-g\u6216--groups\uff1a\u663e\u793a\u591a\u91cd\u5e7f\u64ad\u529f\u80fd\u7fa4\u7ec4\u7ec4\u5458\u540d\u5355\uff1b\n<\/span>-h\u6216--help\uff1a\u5728\u7ebf\u5e2e\u52a9\uff1b\n<\/span>-i\u6216--interfaces\uff1a\u663e\u793a\u7f51\u7edc\u754c\u9762\u4fe1\u606f\u8868\u5355\uff1b<\/span>\n-l\u6216--listening\uff1a\u663e\u793a\u76d1\u63a7\u4e2d\u7684\u670d\u52a1\u5668\u7684Socket\uff1b\n<\/span>-M\u6216--masquerade\uff1a\u663e\u793a\u4f2a\u88c5\u7684\u7f51\u7edc\u8fde\u7ebf\uff1b\n<\/span>-n\u6216--numeric\uff1a\u76f4\u63a5\u4f7f\u7528ip\u5730\u5740\uff0c\u800c\u4e0d\u901a\u8fc7\u57df\u540d\u670d\u52a1\u5668\uff1b\n<\/span>-N\u6216--netlink\u6216--symbolic\uff1a\u663e\u793a\u7f51\u7edc\u786c\u4ef6\u5916\u56f4\u8bbe\u5907\u7684\u7b26\u53f7\u8fde\u63a5\u540d\u79f0\uff1b<\/span>\n-o\u6216--timers\uff1a\u663e\u793a\u8ba1\u65f6\u5668\uff1b\n<\/span>-p\u6216--programs\uff1a\u663e\u793a\u6b63\u5728\u4f7f\u7528Socket\u7684\u7a0b\u5e8f\u8bc6\u522b\u7801\u548c\u7a0b\u5e8f\u540d\u79f0\uff1b\n<\/span>-r\u6216--route\uff1a\u663e\u793aRouting Table\uff1b\n<\/span>-s\u6216--statistice\uff1a\u663e\u793a\u7f51\u7edc\u5de5\u4f5c\u4fe1\u606f\u7edf\u8ba1\u8868\uff1b\n<\/span>-t\u6216--tcp\uff1a\u663e\u793aTCP\u4f20\u8f93\u534f\u8bae\u7684\u8fde\u7ebf\u72b6\u51b5\uff1b\n<\/span>-u\u6216--udp\uff1a\u663e\u793aUDP\u4f20\u8f93\u534f\u8bae\u7684\u8fde\u7ebf\u72b6\u51b5\uff1b\n<\/span>-v\u6216--verbose\uff1a\u663e\u793a\u6307\u4ee4\u6267\u884c\u8fc7\u7a0b\uff1b\n<\/span>-V\u6216--version\uff1a\u663e\u793a\u7248\u672c\u4fe1\u606f\uff1b\n<\/span>-w\u6216--raw\uff1a\u663e\u793aRAW\u4f20\u8f93\u534f\u8bae\u7684\u8fde\u7ebf\u72b6\u51b5\uff1b\n<\/span>-x\u6216--unix\uff1a\u6b64\u53c2\u6570\u7684\u6548\u679c\u548c\u6307\u5b9a\"-A unix\"\u53c2\u6570\u76f8\u540c\uff1b\n<\/span>--ip\u6216--inet\uff1a\u6b64\u53c2\u6570\u7684\u6548\u679c\u548c\u6307\u5b9a\"-A inet\"\u53c2\u6570\u76f8\u540c\u3002<\/span><\/pre>\n
root@X61T:\/etc\/init.d# service rsync stop<\/span><\/p>\n
root@X61T:\/etc\/init.d# \/usr\/sbin\/sshd -d<\/span><\/p>\n
debug1: sshd version OpenSSH_7.4, OpenSSL 1.0.2l \u00a025 May 2017\n<\/span>debug1: private host key #0: ssh-rsa SHA256:yXduj8mTB9Lte+8TNQZPaqHtphuCgTcR18BY9jhY7sY<\/span>\ndebug1: private host key #1: ecdsa-sha2-nistp256 SHA256:kzdqml9P9ocCIKrNalil5lKOZtY9Eshrn6ntfFKEkFk\n<\/span>debug1: private host key #2: ssh-ed25519 SHA256:nAcGxV9POMZeJxyqOWVsWu1s\/WrvQSyhNDj0sQa90KY\n<\/span>debug1: rexec_argv[0]='\/usr\/sbin\/sshd'\n<\/span>debug1: rexec_argv[1]='-d'<\/span>\ndebug1: Set \/proc\/self\/oom_score_adj from 0 to -1000<\/span>\ndebug1: Bind to port 22 on 0.0.0.0.<\/span>\nServer listening on 0.0.0.0 port 22.<\/span>\ndebug1: Bind to port 22 on ::.\n<\/span>Server listening on :: port 22.\n<\/span><\/pre>\n
root@X61T:\/etc\/init.d# service rsync stop<\/span>
\n<\/span><\/p>\n
root@X61T:\/etc\/init.d# service ssh start<\/span>
\n<\/span><\/p>\n
root@X61T:\/etc\/init.d# service rsync start<\/span>
\n<\/span><\/p>\n
root@X61T:\/home\/liang# journalctl -u ssh.service<\/span><\/p>\n
Jan 30 09:21:38 X61T systemd[1]: Starting OpenBSD Secure Shell server...\n<\/span>Jan 30 09:21:38 X61T sshd[6526]: Server listening on 0.0.0.0 port 22.\n<\/span>Jan 30 09:21:38 X61T sshd[6526]: Server listening on :: port 22.\n<\/span>Jan 30 09:21:38 X61T systemd[1]: Started OpenBSD Secure Shell server.\n<\/span><\/pre>\n
\"\"<\/p>\n
\u641e\u5b9a\u3002<\/p>\n
\u4e0b\u9762\u7684\u8d44\u6599\u662f\u4e3a\u4ec0\u4e48Rsync<\/span>\u4f1a\u5360\u7528<\/span>22<\/span>\u7aef\u53e3<\/span>
\n<\/span><\/span><\/p>\n
\u7559\u4e0b\u6765\u53c2\u8003<\/p>\n
https:\/\/mike-hostetler.com\/rsync-non-standard-ssh-port\/<\/p>\n
https:\/\/www.kaijia.me\/2012\/10\/rsync-use-non-standard-ssh-port-solved\/<\/p>\n","protected":false},"excerpt":{"rendered":"
\u670d\u52a1\u5668\u8fd0\u884c\u4e86\u4e00\u4e9b\u811a\u672c\u540e\uff0c\u7a81\u7136\u53d1\u73b0\u65e0\u6cd5ssh\u4e86\u3002 root@X61T:\/home\/liang# service sshd restart Job for ssh.service failed becau...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[60],"tags":[],"class_list":["post-2548","post","type-post","status-publish","format-standard","hentry","category-ssh"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.liangliang.org.cn\/index.php?rest_route=\/wp\/v2\/posts\/2548","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.liangliang.org.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.liangliang.org.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.liangliang.org.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.liangliang.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2548"}],"version-history":[{"count":14,"href":"https:\/\/www.liangliang.org.cn\/index.php?rest_route=\/wp\/v2\/posts\/2548\/revisions"}],"predecessor-version":[{"id":2642,"href":"https:\/\/www.liangliang.org.cn\/index.php?rest_route=\/wp\/v2\/posts\/2548\/revisions\/2642"}],"wp:attachment":[{"href":"https:\/\/www.liangliang.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2548"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.liangliang.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2548"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.liangliang.org.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2548"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}