Question

1.3. PostgreSQL 官方 YUM 源安装

CentOS 6.4 环境 YUM 地址 http://yum.postgresql.org/

1.3.1. 9.2

# yum install http://yum.postgresql.org/9.2/redhat/rhel-6-x86_64/pgdg-centos92-9.2-6.noarch.rpm
# yum list postgres*

# yum install postgresql92-server postgresql92

chkconfig postgresql-9.2 on
service postgresql-9.2 initdb
service postgresql-9.2 start

配置文件的位置

# ls /var/lib/pgsql/9.2/data/*.conf
/var/lib/pgsql/9.2/data/pg_hba.conf  /var/lib/pgsql/9.2/data/pg_ident.conf  /var/lib/pgsql/9.2/data/postgresql.conf

1.3.2. 9.3

# yum install http://yum.postgresql.org/9.3/redhat/rhel-6-x86_64/pgdg-centos93-9.3-1.noarch.rpm
# yum install postgresql93-server postgresql93

# chkconfig postgresql-9.3 on
# service postgresql-9.3 initdb
# service postgresql-9.3 start			

9.2 升级到 9.3

备份数据库

# su - postgres
$ pg_dump -f wechat.sql wechat

升级数据库

关闭9.2，启动9。3

# chkconfig postgresql-9.2 off
# service postgresql-9.2 stop

# service postgresql-9.3 start

回复数据库

# su - postgres
$ createuser -r -s -P dba
$ createuser -P wechat
$ createdb -E UTF8 -O wechat wechat
$ cat wechat.sql | psql wechat

合并配置文件

$ cp 9.3/data/postgresql.conf{,.original}
$ cp 9.3/data/pg_hba.conf{,.original}
$ vimdiff 9.2/data/postgresql.conf 9.3/data/postgresql.conf
$ vimdiff 9.2/data/pg_hba.conf 9.3/data/pg_hba.conf

注意 vimdiff 命令是文件对比于合并工具，建议你选择你比较熟悉的工具。

# service postgresql-9.3 restart

1.3.3. 9.4

CentOS 6

https://github.com/oscm/shell/blob/master/database/postgresql/postgresql93-centos6.sh

CentOS 7

https://github.com/oscm/shell/blob/master/database/postgresql/postgresql93-centos7.sh

#!/bin/bash

# CentOS 7
yum install -y https://download.postgresql.org/pub/repos/yum/9.6/redhat/rhel-7-x86_64/pgdg-centos96-9.6-3.noarch.rpm
yum install -y postgresql96-server postgresql96-contrib

systemctl initdb postgresql-9.6
chkconfig postgresql-9.6 on

cp /var/lib/pgsql/9.6/data/postgresql.conf{,.original}
cp /var/lib/pgsql/9.6/data/pg_hba.conf{,.original}
cp /var/lib/pgsql/9.6/data/pg_ident.conf{,.original}

sed -i "s/#listen_addresses = 'localhost'/listen_addresses = '*'/" /var/lib/pgsql/9.6/data/postgresql.conf

systemctl start postgresql-9.6

iptables -A INPUT -m state --state NEW -m tcp -p tcp --dport 5432 -j ACCEPT
systemctl save iptables			

一键安装

curl -s https://raw.githubusercontent.com/oscm/shell/master/database/postgresql/postgresql93-centos7.sh | bash

1.3.4. 9.6

https://github.com/oscm/shell/blob/master/database/postgresql/postgresql96-centos7.sh

一键安装

curl -s https://raw.githubusercontent.com/oscm/shell/master/database/postgresql/postgresql96-centos7.sh | bash

1.3.5. PostgreSQL 10

一键安装 PostgreSQL 10

curl -s https://raw.githubusercontent.com/oscm/shell/master/database/postgresql/10/repository.sh | bash
curl -s https://raw.githubusercontent.com/oscm/shell/master/database/postgresql/10/postgresql-server.sh | bash

监听所有适配器地址

curl -s https://raw.githubusercontent.com/oscm/shell/master/database/postgresql/10/listen_addresses.all.sh | bash

创建数据库

CREATE ROLE test LOGIN PASSWORD 'test' NOSUPERUSER NOINHERIT NOCREATEDB NOCREATEROLE;
CREATE DATABASE test WITH OWNER = test ENCODING = 'UTF8' TABLESPACE = pg_default;

配置访问控制列表 /var/lib/pgsql/10/data/pg_hba.conf 加入

# vim /var/lib/pgsql/10/data/pg_hba.conf
host    *               dba         0.0.0.0/0       md5     
host    test            test        0.0.0.0/0       md5

确认防火墙已经放行5432端口

# cat /etc/sysconfig/iptables | grep 5432 -A INPUT -s 172.16.0.0/24 -p tcp -m state --state NEW -m tcp --dport 5432 -j ACCEPT

例 1.1. Example for /var/lib/pgsql/10/data/pg_hba.conf

# cat /var/lib/pgsql/10/data/pg_hba.conf
# PostgreSQL Client Authentication Configuration File
# ===================================================
#
# Refer to the "Client Authentication" section in the PostgreSQL
# documentation for a complete description of this file.  A short
# synopsis follows.
#
# This file controls: which hosts are allowed to connect, how clients
# are authenticated, which PostgreSQL user names they can use, which
# databases they can access.  Records take one of these forms:
#
# local      DATABASE  USER  METHOD  [OPTIONS]
# host       DATABASE  USER  ADDRESS  METHOD  [OPTIONS]
# hostssl    DATABASE  USER  ADDRESS  METHOD  [OPTIONS]
# hostnossl  DATABASE  USER  ADDRESS  METHOD  [OPTIONS]
#
# (The uppercase items must be replaced by actual values.)
#
# The first field is the connection type: "local" is a Unix-domain
# socket, "host" is either a plain or SSL-encrypted TCP/IP socket,
# "hostssl" is an SSL-encrypted TCP/IP socket, and "hostnossl" is a
# plain TCP/IP socket.
#
# DATABASE can be "all", "sameuser", "samerole", "replication", a
# database name, or a comma-separated list thereof. The "all"
# keyword does not match "replication". Access to replication
# must be enabled in a separate record (see example below).
#
# USER can be "all", a user name, a group name prefixed with "+", or a
# comma-separated list thereof.  In both the DATABASE and USER fields
# you can also write a file name prefixed with "@" to include names
# from a separate file.
#
# ADDRESS specifies the set of hosts the record matches.  It can be a
# host name, or it is made up of an IP address and a CIDR mask that is
# an integer (between 0 and 32 (IPv4) or 128 (IPv6) inclusive) that
# specifies the number of significant bits in the mask.  A host name
# that starts with a dot (.) matches a suffix of the actual host name.
# Alternatively, you can write an IP address and netmask in separate
# columns to specify the set of hosts.  Instead of a CIDR-address, you
# can write "samehost" to match any of the server's own IP addresses,
# or "samenet" to match any address in any subnet that the server is
# directly connected to.
#
# METHOD can be "trust", "reject", "md5", "password", "scram-sha-256",
# "gss", "sspi", "ident", "peer", "pam", "ldap", "radius" or "cert".
# Note that "password" sends passwords in clear text; "md5" or
# "scram-sha-256" are preferred since they send encrypted passwords.
#
# OPTIONS are a set of options for the authentication in the format
# NAME=VALUE.  The available options depend on the different
# authentication methods -- refer to the "Client Authentication"
# section in the documentation for a list of which options are
# available for which authentication methods.
#
# Database and user names containing spaces, commas, quotes and other
# special characters must be quoted.  Quoting one of the keywords
# "all", "sameuser", "samerole" or "replication" makes the name lose
# its special character, and just match a database or username with
# that name.
#
# This file is read on server startup and when the server receives a
# SIGHUP signal.  If you edit the file on a running system, you have to
# SIGHUP the server for the changes to take effect, run "pg_ctl reload",
# or execute "SELECT pg_reload_conf()".
#
# Put your actual configuration here
# ----------------------------------
#
# If you want to allow non-local connections, you need to add more
# "host" records.  In that case you will also need to make PostgreSQL
# listen on a non-local interface via the listen_addresses
# configuration parameter, or via the -i or -h command line switches.



# TYPE  DATABASE        USER            ADDRESS                 METHOD
host    *		dba         0.0.0.0/0       md5
host    test		test        0.0.0.0/0       md5

# "local" is for Unix domain socket connections only
local   all             all                                     peer
# IPv4 local connections:
host    all             all             127.0.0.1/32            ident
# IPv6 local connections:
host    all             all             ::1/128                 ident
# Allow replication connections from localhost, by a user with the
# replication privilege.
local   replication     all                                     peer
host    replication     all             127.0.0.1/32            ident
host    replication     all             ::1/128                 ident