Carpe diem

[jboss@ip-172-31-9-0 nginx]$ pwd

/etc/nginx

[jboss@ip-172-31-9-0 nginx]$ ll

total 68

drwxr-xr-x 2 root root 4096 Dec  8 10:50 conf.d

drwxr-xr-x 2 root root 4096 Sep 12 04:57 default.d

-rw-r--r-- 1 root root 1077 Sep 12 04:57 fastcgi.conf

-rw-r--r-- 1 root root 1077 Sep 12 04:57 fastcgi.conf.default

-rw-r--r-- 1 root root 1007 Sep 12 04:57 fastcgi_params

-rw-r--r-- 1 root root 1007 Sep 12 04:57 fastcgi_params.default

-rw-r--r-- 1 root root 2837 Sep 12 04:57 koi-utf

-rw-r--r-- 1 root root 2223 Sep 12 04:57 koi-win

-rw-r--r-- 1 root root 3957 Sep 12 04:57 mime.types

-rw-r--r-- 1 root root 3957 Sep 12 04:57 mime.types.default

-rw-r--r-- 1 root root 3734 Sep 12 04:57 nginx.conf

-rw-r--r-- 1 root root 2656 Sep 12 04:57 nginx.conf.default

-rw-r--r-- 1 root root  636 Sep 12 04:57 scgi_params

-rw-r--r-- 1 root root  636 Sep 12 04:57 scgi_params.default

-rw-r--r-- 1 root root  664 Sep 12 04:57 uwsgi_params

-rw-r--r-- 1 root root  664 Sep 12 04:57 uwsgi_params.default

-rw-r--r-- 1 root root 3610 Sep 12 04:57 win-utf

http{

    upstream jboss {

        server 0.0.0.0:9990;

    }

    sever {

        location / {

                proxy_pass http://jboss;

        }

    }

} 

[root@ip-172-31-9-0 util]# wget http://download.jboss.org/jbossas/7.1/jboss-as-7.1.1.Final/jboss-as-7.1.1.Final.zip

--2017-12-08 12:31:37--  http://download.jboss.org/jbossas/7.1/jboss-as-7.1.1.Final/jboss-as-7.1.1.Final.zip

Resolving download.jboss.org (download.jboss.org)... 184.26.249.106

Connecting to download.jboss.org (download.jboss.org)|184.26.249.106|:80... connected.

HTTP request sent, awaiting response... 200 OK

Length: 133255203 (127M) [application/zip]

Saving to: ‘jboss-as-7.1.1.Final.zip’

jboss-as-7.1.1.Final.zip      100%[=================================================>] 127.08M  21.9MB/s    in 6.1s

2017-12-08 12:31:45 (20.8 MB/s) - ‘jboss-as-7.1.1.Final.zip’ saved [133255203/133255203]

[root@ip-172-31-9-0 util]# ll

total 130136

-rw-r--r-- 1 root root 133255203 Mar 10  2012 jboss-as-7.1.1.Final.zip

[root@ip-172-31-9-0 util]# unzip jboss-as-7.1.1.Final.zip -d /usr/share

Archive:  jboss-as-7.1.1.Final.zip

폴더 생성...

   creating: /usr/share/jboss-as-7.1.1.Final/

   creating: /usr/share/jboss-as-7.1.1.Final/appclient/

   creating: /usr/share/jboss-as-7.1.1.Final/appclient/configuration/

   creating: /usr/share/jboss-as-7.1.1.Final/bin

   ................................ 생략 ................................

파일 압축 풀리는중...

  inflating: /usr/share/jboss-as-7.1.1.Final/appclient/configuration/appclient.xml

  inflating: /usr/share/jboss-as-7.1.1.Final/appclient/configuration/logging.properties

  inflating: /usr/share/jboss-as-7.1.1.Final/bin/add-user.sh

  inflating: /usr/share/jboss-as-7.1.1.Final/bin/appclient.sh

   ................................ 생략 ................................

또 폴더 생성...

   creating: /usr/share/jboss-as-7.1.1.Final/domain/tmp/auth/

[root@ip-172-31-9-0 jboss-as-7.1.1.Final]# adduser jboss

[root@ip-172-31-9-0 share]# chown -fR jboss.jboss /usr/share/jboss-as-7.1.1.Final

> 변경 전

drwxr-xr-x  10 root root  4096 Mar 10  2012 jboss-as-7.1.1.Final

> 변경 후

drwxr-xr-x  10 jboss jboss  4096 Mar 10  2012 jboss-as-7.1.1.Final

현재 root

[root@ip-172-31-9-0 share]# su jboss

jboss로 사용자 변경된것 확인

[jboss@ip-172-31-9-0 share]$ 

[jboss@ip-172-31-9-0 bin]$ ./add-user.sh

이거 실행하고나면 질문들이 나올꺼야. 

What type of user do you wish to add?

 a) Management User (mgmt-users.properties)

 b) Application User (application-users.properties)

(a): a  <- 답변

Enter the details of the new user to add.

Realm (ManagementRealm) :                  - 비워도 됨.. ( 뭔지 알수가 없으니 일단 가이드대로 진행 )

Username : jboss

Password : jboss1234                            - 비밀번호 ( 리눅스에선 비번을 써도 화면에 노출이 안됨. )

Re-enter Password : jboss1234                - 비밀번호 한번 더 (동일)

About to add user 'jboss' for realm 'jboss'

Is this correct yes/no? yes                      - 입력한게 정확한지 확인

Added user 'jboss' to file '/usr/share/jboss-as-7.1.1.Final/standalone/configuration/mgmt-users.properties'

Added user 'jboss' to file '/usr/share/jboss-as-7.1.1.Final/domain/configuration/mgmt-users.properties'

[jboss@ip-172-31-9-0 bin]$ ./standalone.sh -Djboss.bind.address=0.0.0.0 -Djboss.bind.address.management=0.0.0.0&

NOTE: By default, JBoss 7 will only bind to localhost. This does not allow any remote access to your jboss server. For our amazon aws installation, we define the jboss.bind.address property as 0.0.0.0 and jboss.bin.address.management property to 0.0.0.0 as well. This allows us to access the remote JBoss amazon instance over the internet. We could have also defined the hostname of the ami or the ip address. However, unless an elastic ip is used, this value can change. This is why we opted for 0.0.0.0.

번역을 해보면...

기본적으로 JBoss 7은 localhost에만 바인딩합니다. 이렇게하면 jboss 서버에 대한 원격 액세스가 허용되지 않습니다. 아마존 aws 설치의 경우 jboss.bind.address 속성을 0.0.0.0으로 정의하고 jboss.bin.address.management 속성을 0.0.0.0으로 정의합니다. 이를 통해 우리는 인터넷을 통해 원격 JBoss amazon 인스턴스에 액세스 할 수 있습니다. ami 또는 ip 주소의 호스트 이름도 정의 할 수 있습니다. 그러나 탄성 IP를 사용하지 않으면이 값이 변경 될 수 있습니다. 이것이 우리가 0.0.0.0을 선택한 이유입니다.

로그..

[1] 4240

[jboss@ip-172-31-9-0 bin]$ =========================================================================

  JBoss Bootstrap Environment

  JBOSS_HOME: /usr/share/jboss-as-7.1.1.Final

  JAVA: /usr/bin/java

  JAVA_OPTS:  -server -XX:+UseCompressedOops -XX:+TieredCompilation -Xms64m -Xmx512m -XX:MaxPermSize=256m -Djava.net.preferIPv4Stack=true -Dorg.jboss.resolver.warning=true -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000 -Djboss.modules.system.pkgs=org.jboss.byteman -Djava.awt.headless=true -Djboss.server.default.config=standalone.xml

=========================================================================

OpenJDK 64-Bit Server VM warning: ignoring option MaxPermSize=256m; support was removed in 8.0

15:02:43,909 INFO  [org.jboss.modules] JBoss Modules version 1.1.1.GA

15:02:44,249 INFO  [org.jboss.msc] JBoss MSC version 1.0.2.GA

15:02:44,313 INFO  [org.jboss.as] JBAS015899: JBoss AS 7.1.1.Final "Brontes" starting

........

 1. 설치 전 java, javac 경로 확인

[ec2-user@ip-172-31-9-0 ~]$ which java

/usr/bin/java

[ec2-user@ip-172-31-9-0 ~]$ ll /usr/bin/java

lrwxrwxrwx 1 root root 22 Dec  7 16:00 /usr/bin/java -> /etc/alternatives/java

[ec2-user@ip-172-31-9-0 ~]$ ll /etc/alternatives/java

lrwxrwxrwx 1 root root 46 Dec  7 16:00 /etc/alternatives/java -> /usr/lib/jvm/jre-1.8.0-openjdk.x86_64/bin/java

 2. 현재 내 인스턴스가 갖고 있는 jdk1.8은 그대로 둔채 jdk 1.7을 새로 설치

[root@ip-172-31-9-0 ~]# yum install java-1.7.0-openjdk-src.x86_64

 3. 설치하고 나서 java, javac 경로 재 확인

- java 확인

[ec2-user@ip-172-31-9-0 ~]$ which java

/usr/bin/java

[ec2-user@ip-172-31-9-0 ~]$ ll /usr/bin/java

lrwxrwxrwx 1 root root 22 Dec  8 15:16 /usr/bin/java -> /etc/alternatives/java

[ec2-user@ip-172-31-9-0 ~]$ ll /etc/alternatives/java

lrwxrwxrwx 1 root root 46 Dec  8 15:16 /etc/alternatives/java -> /usr/lib/jvm/jre-1.7.0-openjdk.x86_64/bin/java

   -> 1.7로 바껴 있지

- javac 확인

[ec2-user@ip-172-31-9-0 ~]$ which javac

/usr/bin/javac

[ec2-user@ip-172-31-9-0 ~]$ ll /usr/bin/javac

lrwxrwxrwx 1 root root 23 Dec  7 16:08 /usr/bin/javac -> /etc/alternatives/javac

[ec2-user@ip-172-31-9-0 ~]$ ll /etc/alternatives/javac

lrwxrwxrwx 1 root root 48 Dec  7 16:08 /etc/alternatives/javac -> /usr/lib/jvm/java-1.8.0-openjdk.x86_64/bin/javac

[jboss@ip-172-31-9-0 bin]$ ./standalone.sh -Djboss.bind.address=0.0.0.0 -Djboss.bind.address.management=0.0.0.0&

[1] 4660

[jboss@ip-172-31-9-0 bin]$ =========================================================================

  JBoss Bootstrap Environment

  JBOSS_HOME: /usr/share/jboss-as-7.1.1.Final

  JAVA: /usr/lib/jvm/jre-1.7.0-openjdk.x86_64/bin/java

  JAVA_OPTS:  -server -XX:+UseCompressedOops -XX:+TieredCompilation -Xms64m -Xmx512m -XX:MaxPermSize=256m -Djava.net.preferIPv4Stack=true -Dorg.jboss.resolver.warning=true -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000 -Djboss.modules.system.pkgs=org.jboss.byteman -Djava.awt.headless=true -Djboss.server.default.config=standalone.xml

=========================================================================

06:27:46,188 INFO  [org.jboss.modules] JBoss Modules version 1.1.1.GA

06:27:46,457 INFO  [org.jboss.msc] JBoss MSC version 1.0.2.GA

06:27:46,512 INFO  [org.jboss.as] JBAS015899: JBoss AS 7.1.1.Final "Brontes" starting

06:27:47,648 INFO  [org.xnio] XNIO Version 3.0.3.GA

06:27:47,667 INFO  [org.jboss.as.server] JBAS015888: Creating http management service using socket-binding (management-http)

06:27:47,674 INFO  [org.xnio.nio] XNIO NIO Implementation Version 3.0.3.GA

06:27:47,695 INFO  [org.jboss.remoting] JBoss Remoting version 3.2.3.GA

06:27:47,745 INFO  [org.jboss.as.logging] JBAS011502: Removing bootstrap log handlers

06:27:47,759 INFO  [org.jboss.as.configadmin] (ServerService Thread Pool -- 26) JBAS016200: Activating ConfigAdmin Subsystem

06:27:47,783 INFO  [org.jboss.as.clustering.infinispan] (ServerService Thread Pool -- 31) JBAS010280: Activating Infinispan subsystem.

06:27:47,835 INFO  [org.jboss.as.osgi] (ServerService Thread Pool -- 39) JBAS011940: Activating OSGi Subsystem

06:27:47,837 INFO  [org.jboss.as.naming] (ServerService Thread Pool -- 38) JBAS011800: Activating Naming Subsystem

06:27:47,878 INFO  [org.jboss.as.security] (ServerService Thread Pool -- 44) JBAS013101: Activating Security Subsystem

06:27:47,882 INFO  [org.jboss.as.connector] (MSC service thread 1-1) JBAS010408: Starting JCA Subsystem (JBoss IronJacamar 1.0.9.Final)

06:27:47,950 INFO  [org.jboss.as.webservices] (ServerService Thread Pool -- 48) JBAS015537: Activating WebServices Extension

06:27:47,966 INFO  [org.jboss.as.security] (MSC service thread 1-2) JBAS013100: Current PicketBox version=4.0.7.Final

06:27:47,994 INFO  [org.jboss.as.connector.subsystems.datasources] (ServerService Thread Pool -- 27) JBAS010403: Deploying JDBC-compliant driver class org.h2.Driver (version 1.3)

06:27:48,095 INFO  [org.jboss.as.naming] (MSC service thread 1-1) JBAS011802: Starting Naming Service

06:27:48,372 INFO  [org.jboss.as.mail.extension] (MSC service thread 1-2) JBAS015400: Bound mail session [java:jboss/mail/Default]

06:27:48,420 INFO  [org.jboss.ws.common.management.AbstractServerConfig] (MSC service thread 1-1) JBoss Web Services - Stack CXF Server 4.0.2.GA

06:27:48,894 INFO  [org.apache.coyote.http11.Http11Protocol] (MSC service thread 1-1) Starting Coyote HTTP/1.1 on http--0.0.0.0-8080

06:27:49,204 INFO  [org.jboss.as.remoting] (MSC service thread 1-1) JBAS017100: Listening on /0.0.0.0:9999

06:27:49,231 INFO  [org.jboss.as.server.deployment.scanner] (MSC service thread 1-1) JBAS015012: Started FileSystemDeploymentService for directory /usr/share/jboss-as-7.1.1.Final/standalone/deployments

06:27:49,302 INFO  [org.jboss.as.connector.subsystems.datasources] (MSC service thread 1-2) JBAS010400: Bound data source [java:jboss/datasources/ExampleDS]

06:27:49,303 INFO  [org.jboss.as.remoting] (MSC service thread 1-1) JBAS017100: Listening on /0.0.0.0:4447

06:27:49,348 INFO  [org.jboss.as] (Controller Boot Thread) JBAS015951: Admin console listening on http://0.0.0.0:9990

06:27:49,350 INFO  [org.jboss.as] (Controller Boot Thread) JBAS015874: JBoss AS 7.1.1.Final "Brontes" started in 3475ms - Started 133 of 208 services (74 services are passive or on-demand)

[root@ip-172-31-9-0 etc]# ps -ef | grep nginx

root      2979  2745  0 11:08 pts/0    00:00:00 grep --color=auto nginx

역시 없지? 

[root@ip-172-31-9-0 etc]# nginx

"nginx" 한 단어만으로 root가 master process에 nginx를 기동했고, nginx가 worker process를 기동했어.

아래 process에서 확인 가능하지.

[root@ip-172-31-9-0 etc]# ps -ef | grep nginx

root      2983     1  0 11:10 ?        00:00:00 nginx: master process nginx

nginx     2984  2983  0 11:10 ?        00:00:00 nginx: worker process

root      2986  2745  0 11:10 pts/0    00:00:00 grep --color=auto nginx

[root@ip-172-31-9-0 ~]# find / -name *nginx*

   조회결과 없어

[root@ip-172-31-9-0 ~]# which nginx

/usr/bin/which: no nginx in (/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin)

[root@ip-172-31-9-0 ~]# yum list | grep nginx

collectd-nginx.x86_64                 5.7.1-3.19.amzn1              amzn-main

munin-nginx.noarch                    2.0.30-5.38.amzn1             amzn-main

nginx.x86_64                          1:1.12.1-1.33.amzn1           amzn-main

nginx-all-modules.x86_64              1:1.12.1-1.33.amzn1           amzn-main

nginx-mod-http-geoip.x86_64           1:1.12.1-1.33.amzn1           amzn-main

nginx-mod-http-image-filter.x86_64    1:1.12.1-1.33.amzn1           amzn-main

nginx-mod-http-perl.x86_64            1:1.12.1-1.33.amzn1           amzn-main

nginx-mod-http-xslt-filter.x86_64     1:1.12.1-1.33.amzn1           amzn-main

nginx-mod-mail.x86_64                 1:1.12.1-1.33.amzn1           amzn-main

nginx-mod-stream.x86_64               1:1.12.1-1.33.amzn1           amzn-main

[root@ip-172-31-9-0 ~]# yum install nginx.x86_64

일단 다운로드.. 압축 풀어야지..

Loaded plugins: priorities, update-motd, upgrade-helper

amzn-main                                                                                        | 2.1 kB  00:00:00

amzn-updates                                                                                     | 2.5 kB  00:00:00

Resolving Dependencies

--> Running transaction check

---> Package nginx.x86_64 1:1.12.1-1.33.amzn1 will be installed

--> Processing Dependency: libprofiler.so.0()(64bit) for package: 1:nginx-1.12.1-1.33.amzn1.x86_64

--> Running transaction check

---> Package gperftools-libs.x86_64 0:2.0-11.5.amzn1 will be installed

--> Processing Dependency: libunwind.so.8()(64bit) for package: gperftools-libs-2.0-11.5.amzn1.x86_64

--> Running transaction check

---> Package libunwind.x86_64 0:1.1-10.8.amzn1 will be installed

--> Finished Dependency Resolution

Dependencies Resolved

========================================================================================================================

 Package                        Arch                  Version                            Repository                Size

========================================================================================================================

Installing:

 nginx                          x86_64                1:1.12.1-1.33.amzn1                amzn-main                561 k

Installing for dependencies:

 gperftools-libs                x86_64                2.0-11.5.amzn1                     amzn-main                570 k

 libunwind                      x86_64                1.1-10.8.amzn1                     amzn-main                 72 k

Transaction Summary

========================================================================================================================

Install  1 Package (+2 Dependent packages)

Total download size: 1.2 M

Installed size: 2.9 M

[root@ip-172-31-9-0 ~]# which nginx

/usr/sbin/nginx

[root@ip-172-31-9-0 nginx]# nginx -v

nginx version: nginx/1.12.1

* nginx -V : Print the nginx version, compiler version, and configure script parameters.

* nginx -v : Print the nginx version.

man nginx 치면 나오는 설명이야.

javac 의 버전은 1.8

[root@ip-172-31-9-0 ~]# javac -version

javac 1.8.0_151

java 의 버전은 1.7 

[root@ip-172-31-9-0 ~]# java -version

java version "1.7.0_151"

OpenJDK Runtime Environment (amzn-2.6.11.0.74.amzn1-x86_64 u151-b00)

OpenJDK 64-Bit Server VM (build 24.151-b00, mixed mode) 

[root@ip-172-31-9-0 ~]# which javac

/usr/bin/javac

[root@ip-172-31-9-0 ~]# readlink -f /usr/bin/javac

/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.151-1.b12.35.amzn1.x86_64/bin/javac

  → javac의 실제 위치는 /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.151-1.b12.35.amzn1.x86_64/bin/

  → 따라서 java의 링크를 /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.151-1.b12.35.amzn1.x86_64/bin/java 로 설정해야 함

현재 java 버전 확인

[root@ip-172-31-9-0 ~]# java -version

java version "1.7.0_151"

OpenJDK Runtime Environment (amzn-2.6.11.0.74.amzn1-x86_64 u151-b00)

OpenJDK 64-Bit Server VM (build 24.151-b00, mixed mode)

[ec2-user@ip-172-31-9-0 ~]$ yum list java*jdk-devel

Loaded plugins: priorities, update-motd, upgrade-helper

Available Packages

java-1.6.0-openjdk-devel.x86_64    1:1.6.0.41-1.13.13.1.77.amzn1    amzn-main

java-1.7.0-openjdk-devel.x86_64    1:1.7.0.151-2.6.11.0.74.amzn1    amzn-main

java-1.8.0-openjdk-devel.x86_64    1:1.8.0.151-1.b12.35.amzn1       amzn-updates

[ec2-user@ip-172-31-9-0 ~]$ yum install java-1.8.0-openjdk-devel.x86_64

Loaded plugins: priorities, update-motd, upgrade-helper

You need to be root to perform this command.

[ec2-user@ip-172-31-9-0 ~]$ sudo su -

Last login: Wed Dec  6 02:17:50 UTC 2017 on pts/0

[root@ip-172-31-9-0 ~]#  yum install java-1.8.0-openjdk-devel.x86_64

Loaded plugins: priorities, update-motd, upgrade-helper

amzn-main                                                | 2.1 kB     00:00

amzn-updates                                             | 2.5 kB     00:00

Resolving Dependencies

--> Running transaction check

---> Package java-1.8.0-openjdk-devel.x86_64 1:1.8.0.151-1.b12.35.amzn1 will be                       installed

--> Processing Dependency: java-1.8.0-openjdk(x86-64) = 1:1.8.0.151-1.b12.35.amz                      n1 for package: 1:java-1.8.0-openjdk-devel-1.8.0.151-1.b12.35.amzn1.x86_64

--> Processing Dependency: libawt_xawt.so(SUNWprivate_1.1)(64bit) for package: 1                      :java-1.8.0-openjdk-devel-1.8.0.151-1.b12.35.amzn1.x86_64

--> Processing Dependency: libawt_xawt.so()(64bit) for package: 1:java-1.8.0-ope                      njdk-devel-1.8.0.151-1.b12.35.amzn1.x86_64

--> Running transaction check

---> Package java-1.8.0-openjdk.x86_64 1:1.8.0.151-1.b12.35.amzn1 will be instal                      led

--> Processing Dependency: java-1.8.0-openjdk-headless(x86-64) = 1:1.8.0.151-1.b                      12.35.amzn1 for package: 1:java-1.8.0-openjdk-1.8.0.151-1.b12.35.amzn1.x86_64

--> Running transaction check

---> Package java-1.8.0-openjdk-headless.x86_64 1:1.8.0.151-1.b12.35.amzn1 will                       be installed

amzn-main/latest/filelists_db                            | 5.7 MB     00:00

amzn-updates/latest/filelists_db                         | 1.9 MB     00:00

--> Processing Dependency: copy-jdk-configs >= 1.1-3 for package: 1:java-1.8.0-o                      penjdk-headless-1.8.0.151-1.b12.35.amzn1.x86_64

--> Processing Dependency: lksctp-tools(x86-64) for package: 1:java-1.8.0-openjd                      k-headless-1.8.0.151-1.b12.35.amzn1.x86_64

--> Running transaction check

---> Package copy-jdk-configs.noarch 0:1.2-1.2.amzn1 will be installed

---> Package lksctp-tools.x86_64 0:1.0.10-7.7.amzn1 will be installed

--> Finished Dependency Resolution

Dependencies Resolved

================================================================================

 Package                   Arch   Version                    Repository    Size

================================================================================

Installing:

 java-1.8.0-openjdk-devel  x86_64 1:1.8.0.151-1.b12.35.amzn1 amzn-updates  12 M

Installing for dependencies:

 copy-jdk-configs          noarch 1.2-1.2.amzn1              amzn-main     13 k

 java-1.8.0-openjdk        x86_64 1:1.8.0.151-1.b12.35.amzn1 amzn-updates 244 k

 java-1.8.0-openjdk-headless

                           x86_64 1:1.8.0.151-1.b12.35.amzn1 amzn-updates  39 M

 lksctp-tools              x86_64 1.0.10-7.7.amzn1           amzn-main     89 k

Transaction Summary

================================================================================

Install  1 Package (+4 Dependent packages)

Total download size: 51 M

Installed size: 143 M

Is this ok [y/d/N]: y

Downloading packages:

(1/5): copy-jdk-configs-1.2-1.2.amzn1.noarch.rpm           |  13 kB   00:00

(2/5): java-1.8.0-openjdk-1.8.0.151-1.b12.35.amzn1.x86_64. | 244 kB   00:00

(3/5): lksctp-tools-1.0.10-7.7.amzn1.x86_64.rpm            |  89 kB   00:00

(4/5): java-1.8.0-openjdk-devel-1.8.0.151-1.b12.35.amzn1.x |  12 MB   00:01

(5/5): java-1.8.0-openjdk-headless-1.8.0.151-1.b12.35.amzn |  39 MB   00:02

--------------------------------------------------------------------------------

Total                                               16 MB/s |  51 MB  00:03

Running transaction check

Running transaction test

Transaction test succeeded

Running transaction

  Installing : copy-jdk-configs-1.2-1.2.amzn1.noarch                        1/5

  Installing : lksctp-tools-1.0.10-7.7.amzn1.x86_64                         2/5

  Installing : 1:java-1.8.0-openjdk-devel-1.8.0.151-1.b12.35.amzn1.x86_64   3/5

  Installing : 1:java-1.8.0-openjdk-headless-1.8.0.151-1.b12.35.amzn1.x86   4/5

  Installing : 1:java-1.8.0-openjdk-1.8.0.151-1.b12.35.amzn1.x86_64         5/5

  Verifying  : lksctp-tools-1.0.10-7.7.amzn1.x86_64                         1/5

  Verifying  : copy-jdk-configs-1.2-1.2.amzn1.noarch                        2/5

  Verifying  : 1:java-1.8.0-openjdk-devel-1.8.0.151-1.b12.35.amzn1.x86_64   3/5

  Verifying  : 1:java-1.8.0-openjdk-1.8.0.151-1.b12.35.amzn1.x86_64         4/5

  Verifying  : 1:java-1.8.0-openjdk-headless-1.8.0.151-1.b12.35.amzn1.x86   5/5

Installed:

  java-1.8.0-openjdk-devel.x86_64 1:1.8.0.151-1.b12.35.amzn1

Dependency Installed:

  copy-jdk-configs.noarch 0:1.2-1.2.amzn1

  java-1.8.0-openjdk.x86_64 1:1.8.0.151-1.b12.35.amzn1

  java-1.8.0-openjdk-headless.x86_64 1:1.8.0.151-1.b12.35.amzn1

  lksctp-tools.x86_64 0:1.0.10-7.7.amzn1

Complete!

[root@ip-172-31-9-0 jvm]# javac -version

javac 1.8.0_151

------------------------------------------

설치된 디렉토리에 있는 jdk, jre..

[root@ip-172-31-9-0 jvm]# ll -ltr /usr/lib/jvm/

total 8

drwxr-xr-x 7 root root 4096 Oct 25 20:46 java-1.8.0-openjdk-1.8.0.151-1.b12.35.amzn1.x86_64

drwxr-xr-x 3 root root 4096 Nov 20 22:12 java-1.7.0-openjdk-1.7.0.151.x86_64

lrwxrwxrwx 1 root root   39 Nov 20 22:12 jre-1.7.0-openjdk.x86_64 -> java-1.7.0-openjdk-1.7.0.151.x86_64/jre

lrwxrwxrwx 1 root root   27 Nov 20 22:12 jre-1.7.0 -> /etc/alternatives/jre_1.7.0

오늘(12월 7일)에 설치된 jdk 1.8 버전

lrwxrwxrwx 1 root root   25 Dec  7 04:46 java-1.8.0-openjdk -> java-1.8.0-openjdk.x86_64

lrwxrwxrwx 1 root root   50 Dec  7 04:46 java-1.8.0-openjdk.x86_64 -> java-1.8.0-openjdk-1.8.0.151-1.b12.35.amzn1.x86_64

lrwxrwxrwx 1 root root   34 Dec  7 04:46 java-openjdk -> /etc/alternatives/java_sdk_openjdk

lrwxrwxrwx 1 root root   32 Dec  7 04:46 java-1.8.0 -> /etc/alternatives/java_sdk_1.8.0

lrwxrwxrwx 1 root root   26 Dec  7 04:46 java -> /etc/alternatives/java_sdk

lrwxrwxrwx 1 root root   54 Dec  7 04:46 jre-1.8.0-openjdk.x86_64 -> java-1.8.0-openjdk-1.8.0.151-1.b12.35.amzn1.x86_64/jre

lrwxrwxrwx 1 root root   24 Dec  7 04:46 jre-1.8.0-openjdk -> jre-1.8.0-openjdk.x86_64

lrwxrwxrwx 1 root root   29 Dec  7 04:46 jre-openjdk -> /etc/alternatives/jre_openjdk

lrwxrwxrwx 1 root root   27 Dec  7 04:46 jre-1.8.0 -> /etc/alternatives/jre_1.8.0

lrwxrwxrwx 1 root root   21 Dec  7 04:46 jre -> /etc/alternatives/jre

HelloWorld java 파일 생성

[root@ip-172-31-9-0 ~]# echo "public class HelloWorld {" > HelloWorld.java

[root@ip-172-31-9-0 ~]# echo "  public static void main(String[] args) {" >> HelloWorld.java

[root@ip-172-31-9-0 ~]# echo "    System.out.println(\"Hello, World\");" >> HelloWorld.java

[root@ip-172-31-9-0 ~]# echo "  }" >> HelloWorld.java

[root@ip-172-31-9-0 ~]# echo "}" >> HelloWorld.java

[root@ip-172-31-9-0 ~]# javac HelloWorld.java

HelloWorld 실행 결과

Hello, World

방법 1

[ec2-user@ip-172-31-9-0 ~]$ grep . /etc/*-release

/etc/os-release:NAME="Amazon Linux AMI"

/etc/os-release:VERSION="2017.09"

/etc/os-release:ID="amzn"

/etc/os-release:ID_LIKE="rhel fedora"

/etc/os-release:VERSION_ID="2017.09"

/etc/os-release:PRETTY_NAME="Amazon Linux AMI 2017.09"

/etc/os-release:ANSI_COLOR="0;33"

/etc/os-release:CPE_NAME="cpe:/o:amazon:linux:2017.09:ga"

/etc/os-release:HOME_URL="http://aws.amazon.com/amazon-linux-ami/"

/etc/system-release:Amazon Linux AMI release 2017.09

방법 2

방법 1

[ec2-user@ip-172-31-9-0 ~]$ uname

Linux

[ec2-user@ip-172-31-9-0 ~]$ uname -r

4.9.62-21.56.amzn1.x86_64