centos 安装 jdk PostgreSQL

1.下载:

anzhuang  jDK

http://blog.csdn.net/youzhouliu/article/details/51183115

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http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

http://www.cnblogs.com/tjpanda88/p/4306149.html

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2.//官方安装_Postgresql

https://www.postgresql.org/download/linux/redhat/

3.//博客安装过程

http://blog.csdn.net/lk10207160511/article/details/50359549

http://www.jianshu.com/p/7e95fd0bc91a

1.添加RPM

　　
[root@localhost ~]#  yum install https://download.postgresql.org/pub/repos/yum/9.5/redhat/rhel-7-x86_64/pgdg-centos95-9.5-2.noarch.rpm
Loaded plugins: fastestmirror, langpacks
pgdg-centos95-9.5-.noarch.rpm                           | 5.3 kB     :
Examining /var/tmp/yum-root-a5MmUk/pgdg-centos95-9.5-.noarch.rpm: pgdg-centos95-9.5-.noarch
Marking /var/tmp/yum-root-a5MmUk/pgdg-centos95-9.5-.noarch.rpm to be installed
Resolving Dependencies
--> Running transaction check
---> Package pgdg-centos95.noarch :9.5- will be installed
--> Finished Dependency Resolution

Dependencies Resolved

================================================================================
 Package           Arch       Version     Repository                       Size
================================================================================
Installing:
 pgdg-centos95     noarch     9.5-       /pgdg-centos95-9.5-.noarch     2.2 k

Transaction Summary
================================================================================
Install   Package

Total size: 2.2 k
Installed size: 2.2 k
Is this ok [y/d/N]: y
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Warning: RPMDB altered outside of yum.
** Found  pre-existing rpmdb problem(s), 'yum check' output follows:
ipa-client-4.4.-.el7.centos.x86_64 has installed conflicts freeipa-client: ipa-client-4.4.-.el7.centos.x86_64
ipa-client-common-4.4.-.el7.centos.noarch has installed conflicts freeipa-client-common: ipa-client-common-4.4.-.el7.centos.noarch
ipa-common-4.4.-.el7.centos.noarch has installed conflicts freeipa-common: ipa-common-4.4.-.el7.centos.noarch
:java-1.8.-openjdk-headless-1.8.0.102-.b14.el7.x86_64 has missing requires of tzdata-java >= ('', '2015d', None)
  Installing : pgdg-centos95-9.5-.noarch                                   /
  Verifying  : pgdg-centos95-9.5-.noarch                                   / 

Installed:
  pgdg-centos95.noarch :9.5-                                                  

Complete!

2.安装PostgreSQL 9.5


[root@localhost ~]# yum install postgresql95-server postgresql95-contrib
Loaded plugins: fastestmirror, langpacks
Repository pgdg95 is listed more than once in the configuration
Repository pgdg95-source is listed more than once in the configuration
Loading mirror speeds from cached hostfile
 * base: mirrors.cn99.com
 * extras: mirrors.aliyun.com
 * updates: mirrors.aliyun.com
Resolving Dependencies
--> Running transaction check
---> Package postgresql95-contrib.x86_64 :9.5.-2PGDG.rhel7 will be installed
--> Processing Dependency: postgresql95-libs(x86-) = 9.5.-2PGDG.rhel7 for package: postgresql95-contrib-9.5.-2PGDG.rhel7.x86_64
--> Processing Dependency: postgresql95(x86-) = 9.5.-2PGDG.rhel7 for package: postgresql95-contrib-9.5.-2PGDG.rhel7.x86_64
--> Processing Dependency: libpq.so.()(64bit) for package: postgresql95-contrib-9.5.-2PGDG.rhel7.x86_64
---> Package postgresql95-server.x86_64 :9.5.-2PGDG.rhel7 will be installed
--> Running transaction check
---> Package postgresql95.x86_64 :9.5.-2PGDG.rhel7 will be installed
---> Package postgresql95-libs.x86_64 :9.5.-2PGDG.rhel7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

================================================================================
 Package                   Arch        Version                Repository   Size
================================================================================
Installing:
 postgresql95-contrib      x86_64      9.5.-2PGDG.rhel7      pgdg95       k
 postgresql95-server       x86_64      9.5.-2PGDG.rhel7      pgdg95      4.1 M
Installing for dependencies:
 postgresql95              x86_64      9.5.-2PGDG.rhel7      pgdg95      1.3 M
 postgresql95-libs         x86_64      9.5.-2PGDG.rhel7      pgdg95       k

Transaction Summary
================================================================================
Install   Packages (+ Dependent packages)

Total size: 6.1 M
Total download size:  k
Installed size:  M
Is this ok [y/d/N]: y
Downloading packages:
pgdg95//x86_64/prestodelta                                |   kB   :
postgresql95-contrib-9.5.-2PGDG.rhel7.x86_64.rpm          |  kB   :
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : postgresql95-libs-9.5.-2PGDG.rhel7.x86_64                   /
  Installing : postgresql95-9.5.-2PGDG.rhel7.x86_64                        /
  Installing : postgresql95-contrib-9.5.-2PGDG.rhel7.x86_64                /
  Installing : postgresql95-server-9.5.-2PGDG.rhel7.x86_64                 /
  Verifying  : postgresql95-contrib-9.5.-2PGDG.rhel7.x86_64                /
  Verifying  : postgresql95-server-9.5.-2PGDG.rhel7.x86_64                 /
  Verifying  : postgresql95-libs-9.5.-2PGDG.rhel7.x86_64                   /
  Verifying  : postgresql95-9.5.-2PGDG.rhel7.x86_64                        / 

Installed:
  postgresql95-contrib.x86_64 :9.5.-2PGDG.rhel7
  postgresql95-server.x86_64 :9.5.-2PGDG.rhel7                                

Dependency Installed:
  postgresql95.x86_64 :9.5.-2PGDG.rhel7
  postgresql95-libs.x86_64 :9.5.-2PGDG.rhel7                                  

Complete!
　　

3.初始化数据库

[root@localhost ~]# /usr/pgsql-9.5/bin/postgresql95-setup initdb
Initializing database ... OK

4.设置开机自启动

[root@localhost ~]# systemctl enable postgresql-9.5
Created symlink from /etc/systemd/system/multi-user.target.wants/postgresql-9.5.service to /usr/lib/systemd/system/postgresql-9.5.service.

5.启动服务
[root@localhost ~]# systemctl start postgresql-9.5
[root@localhost ~]# systemctl status postgresql-9.5
● postgresql-9.5.service - PostgreSQL 9.5 database server
   Loaded: loaded (/usr/lib/systemd/system/postgresql-9.5.service; enabled; vendor preset: disabled)
   Active: active (running) since 一 -- :: CST; 49s ago
  Process:  ExecStart=/usr/pgsql-9.5/bin/pg_ctl start -D ${PGDATA} -s -w -t  (code=exited, status=/SUCCESS)
  Process:  ExecStartPre=/usr/pgsql-9.5/bin/postgresql95-check-db-dir ${PGDATA} (code=exited, status=/SUCCESS)
 Main PID:  (postgres)
   CGroup: /system.slice/postgresql-9.5.service
           ├─ /usr/pgsql-9.5/bin/postgres -D /var/lib/pgsql/9.5/data
           ├─ postgres: logger process
           ├─ postgres: checkpointer process
           ├─ postgres: writer process
           ├─ postgres: wal writer process
           ├─ postgres: autovacuum launcher process
           └─ postgres: stats collector process   

3月  :: localhost.localdomain systemd[]: Starting PostgreSQL 9.5 da...
3月  :: localhost.localdomain pg_ctl[]: < -- ::27.60…程
3月  :: localhost.localdomain pg_ctl[]: < -- ::27.60….
3月  :: localhost.localdomain systemd[]: Started PostgreSQL 9.5 dat...
Hint: Some lines were ellipsized, use -l to show in full.

//自此，PostgreSQL 9.5 安装完成，此过程中注意安装权限，我在安装过程中一直使用的是root用户进行的安装。

[root@localhost ~]# psql --version
psql (PostgreSQL) 9.5.6

接下来，进行一下简单的配置。

//su postgres  切换用户，执行后提示符会变为 '-bash-4.2$'
[root@localhost ~]# su postgres

//登录数据库，执行后提示符变为
bash-4.2$ psql -U postgres
could not change directory to "/root": Permission denied
psql (9.5.)
Type "help" for help.
//设置postgres用户密码
postgres=# alter user postgres with password 'postgres123'

//退出数据库
postgres-# \q

//系统管理用的帐号和密码变更完成，现在配置一下远程连接  可以参考:http://www.jianshu.com/p/7e95fd0bc91a或者http://www.cnblogs.com/Amos-Turing/p/7681323.html

.开启远程访问
    vi /var/lib/pgsql/9.5/data/postgresql.conf
    修改#listen_addresses = 'localhost'  为  listen_addresses='*'
    当然，此处‘*’也可以改为任何你想开放的服务器IP

//远程连接配置完成，由于系统原因，还需要在防火墙中打开相应的端口。
bash-4.2$ firewall-cmd --list-all
public (active)
  target: default
  icmp-block-inversion: no
  interfaces: wlp4s0
  sources:
  services: dhcpv6-client ssh
  ports:
  protocols:
  masquerade: no
  forward-ports:
  sourceports:
  icmp-blocks:
  rich rules: 
//开放postgresql服务
bash-4.2$ firewall-cmd --add-service=postgresql --permanent
success
//重载防火墙
bash-4.2$ firewall-cmd --reload
success
bash-4.2$ firewall-cmd --list-all
public (active)
  target: default
  icmp-block-inversion: no
  interfaces: wlp4s0
  sources:
  services: dhcpv6-client postgresql ssh
  ports:
  protocols:
  masquerade: no
  forward-ports:
  sourceports:
  icmp-blocks:
  rich rules: 
//最后一步，不能忘记的，是重启数据库服务，使配置生效。
bash-4.2$ systemctl restart postgresql-9.5.service
bash-4.2$ 

卸载数据库:

http://www.cnblogs.com/tjpanda88/p/4306149.html4:

http://www.educity.cn/linux/1581284.html

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