-9.2 openssl-blacklist
下列【新】软件包将被安装：
libpq5 pgdg-keyring postgresql-9.2 postgresql-client-9.2 postgresql-client-common postgresql-common ssl-cert
升级了 0 个软件包，新安装了 7 个软件包，要卸载 0 个软件包，有 140 个软件包未被升级。
需要下载 4,663 kB 的软件包。
解压缩后会消耗掉 22.6 MB 的额外空间。
...
......省略下载，解压缩过程
...
正在设置 libpq5 (9.4.4-1.pgdg12.4+1) ...
正在设置 pgdg-keyring (2014.1) ...
Removing apt.postgresql.org key from trusted.gpg: OK
Importing apt.postgresql.org key: OK
正在设置 postgresql-client-common (169.pgdg12.4+1) ...
正在设置 postgresql-client-9.2 (9.2.13-1.pgdg12.4+1) ...
update-alternatives: 使用 /usr/share/postgresql/9.2/man/man1/psql.1.gz 来提供 /usr/share/man/man1/psql.1.gz (psql.1.gz)，于 自动模式 中。
正在设置 ssl-cert (1.0.28ubuntu0.1) ...
正在设置 postgresql-common (169.pgdg12.4+1) ...
Adding user postgres to group ssl-cert
Creating config file /etc/postgresql-common/createcluster.conf with new version
Creating config file /etc/logrotate.d/postgresql-common with new version
Building PostgreSQL dictionaries from installed myspell/hunspell packages...
en_us
Removing obsolete dictionary files:
* No PostgreSQL clusters exist; see "man pg_createcluster"
正在设置 postgresql-9.2 (9.2.13-1.pgdg12.4+1) ...
Creating new cluster 9.2/main ...
config /etc/postgresql/9.2/main
data /var/lib/postgresql/9.2/main
locale zh_CN.UTF-8
port 5432
update-alternatives: 使用 /usr/share/postgresql/9.2/man/man1/postmaster.1.gz 来提供 /usr/share/man/man1/postmaster.1.gz (postmaster.1.gz)，于 自动模式 中。
* Starting PostgreSQL 9.2 database server [ OK ]
正在处理用于 libc-bin 的触发器...
ldconfig deferred processing now taking place
?
?
?4.配置远程访问
?
PostgreSQL刚安装好后的状态应该是，Ubuntu上的postgres用户密码未知，
数据库上的postgres密码未设
?
若用root或允许sudo，可以直接强制以postgres用户登录，不需要知道postgres的密码
?
root # su postgres?
postgres $ psql
psql (9.2.13)
输入 "help" 来获取帮助信息.
?
postgres=#
(非root，允许sudo的用户,这里设了免密) ? ?$ sudo -u postgres psql
psql (9.2.13)
输入 "help" 来获取帮助信息.
?
postgres=#
登录后就给SQL的postgres设个密码
?
postgres#\password postgres
退出去找一个目录，要修改两个文件，postgresql.conf 和 pg_hba.conf
# find / -name postgresql.conf
/etc/postgresql/9.2/main/postgresql.conf
# cd /etc/postgresql/9.2/main/
# l
environment pg_ctl.conf pg_hba.conf pg_ident.conf postgresql.conf start.conf
?
postgresql.conf 监听所有IP，默认端口，开启日志收集，每天一个新日志，还有很多不懂的参数可以调。
?
?
listen_addresses = '*' # what IP address(es) to listen on;
# comma-separated list of addresses;
# defaults to 'localhost'; use '*' for all
# (change requires restart)
port = 5432 # (change requires restart)
logging_collector = on # Enable capturing of stderr and csvlog
# into log files. Required to be on for
# csvlogs.
# (change requires restart)
log_directory = 'pg_log' # directory where log files are written,
# can be absolute or relative to PGDATA
log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log' # log file name pattern,
# can include strftime() escapes
log_truncate_on_rotation = off # If on, an existing log file with the
# same name as the new log file will be
# truncated rather than appended to.
# But such truncation only occurs on
# time-driven rotation, not on restarts
# or size-driven rotation. Default is
# off, meaning append to existing files
# in all cases.
log_rotation_age = 1d # Automatic rotation of logfiles will
# happen after that time. 0 disab