[Linux] SSH port 설정 ConnectException: 연결이 거부됨 (Connection refused)

[ERROR] 18-02-27 10:34:19 : [main]commons.SftpUtil : com.jcraft.jsch.JSchException: java.net.ConnectException: 연결

com.jcraft.jsch.JSchException: java.net.ConnectException: 연결 시간 초과

        at com.jcraft.jsch.Util.createSocket(Util.java:349)

        at com.jcraft.jsch.Session.connect(Session.java:215)

        at com.jcraft.jsch.Session.connect(Session.java:183)

        at com.eunbi.collector.commons.SftpUtil.init(SftpUtil.java:40)

        at com.eunbi.collector.worker.CollectorWorker.init(CollectorWorker.java:264)

        at com.eunbi.collector.worker.CollectorWorker.run(CollectorWorker.java:41)

        at com.eunbi.collector.manager.CollectorManager.run(CollectorManager.java:32)

        at com.eunbi.collector.CollectorMain.main(CollectorLbsaMain.java:22)

Caused by: java.net.ConnectException: 연결 시간 초과

        at java.net.PlainSocketImpl.socketConnect(Native Method)

        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)

        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)

        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)

        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)

        at java.net.Socket.connect(Socket.java:589)

        at java.net.Socket.connect(Socket.java:538)

        at java.net.Socket.<init>(Socket.java:434)

        at java.net.Socket.<init>(Socket.java:211)

        at com.jcraft.jsch.Util.createSocket(Util.java:343)

        ... 7 more

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자바 jar파일이 접속이 안되길래 파보았다.

* SSH 접속불가

[spot@eunbi-2 bin]$ ssh spot@eunbi-app -p22

ssh: connect to host eunbi-app port 22: Connection refused

* 키는 이미 교환되어있음

[spot@eunbi-2 bin]$ ssh eunbi-app

spot@eunbi-app's password:

Last login: Tue Feb 27 10:21:31 2018 from eunbi-2

* 방화벽 해제상태

[spot@eunbi-app ~]$ service firewalld status

Redirecting to /bin/systemctl status  firewalld.service

● firewalld.service - firewalld - dynamic firewall daemon

   Loaded: loaded (/usr/lib/systemd/system/firewalld.service; disabled; vendor preset: enabled)

   Active: inactive (dead)

     Docs: man:firewalld(1)

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차이점을 보면 포트를 지정해준 것은 로그인에 실패했다.

결론적으로 ssh 포트설정이 다르다는 것인데

*참고*

http://goguri.tistory.com/entry/Linux-ssh-port-%EB%B3%80%EA%B2%BD

[spot@eunbi-app ~]$ sudo vi /etc/ssh/sshd_config

# If you want to change the port on a SELinux system, you have to tell

# SELinux about this change.

# semanage port -a -t ssh_port_t -p tcp #PORTNUMBER

#

#Port 22

Port 2222

#AddressFamily any

#ListenAddress 0.0.0.0

#ListenAddress ::

포트가 22가 아닌 2222가 되어있는걸 확인 가능하다.

[spot@eunbi-2 bin]$ ssh spot@eunbi-app -p2222

Last login: Tue Feb 27 10:21:31 2018 from eunbi-2