Postgres remote db

##

```bash
# yum install postgresql94-server postgresql94-contrib
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
 * base: ftp.iij.ad.jp
 * epel: ftp.riken.jp
 * epel-debuginfo: ftp.riken.jp
 * epel-source: ftp.riken.jp
 * extras: ftp.iij.ad.jp
 * updates: ftp.iij.ad.jp
Package postgresql94-server-9.4.11-2PGDG.rhel7.x86_64 already installed and latest version
Resolving Dependencies
--> Running transaction check
---> Package postgresql94-contrib.x86_64 0:9.4.11-2PGDG.rhel7 will be installed
--> Processing Dependency: libxslt.so.1(LIBXML2_1.0.22)(64bit) for package: postgresql94-contrib-9.4.11-2PGDG.rhel7.x86_64
--> Processing Dependency: libxslt.so.1(LIBXML2_1.0.18)(64bit) for package: postgresql94-contrib-9.4.11-2PGDG.rhel7.x86_64
--> Processing Dependency: libxslt.so.1(LIBXML2_1.0.11)(64bit) for package: postgresql94-contrib-9.4.11-2PGDG.rhel7.x86_64
--> Processing Dependency: libxslt.so.1()(64bit) for package: postgresql94-contrib-9.4.11-2PGDG.rhel7.x86_64
--> Running transaction check
---> Package libxslt.x86_64 0:1.1.28-5.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

=====================================================================================================================================================================
 Package                                        Arch                             Version                                      Repository                        Size
=====================================================================================================================================================================
Installing:
 postgresql94-contrib                           x86_64                           9.4.11-2PGDG.rhel7                           pgdg94                           616 k
Installing for dependencies:
 libxslt                                        x86_64                           1.1.28-5.el7                                 base                             242 k

Transaction Summary
=====================================================================================================================================================================
Install  1 Package (+1 Dependent package)

Total download size: 858 k
Installed size: 2.6 M
Is this ok [y/d/N]: y
Downloading packages:
(1/2): libxslt-1.1.28-5.el7.x86_64.rpm                                                                                                        | 242 kB  00:00:00     
(2/2): postgresql94-contrib-9.4.11-2PGDG.rhel7.x86_64.rpm                                                                                     | 616 kB  00:00:02     
---------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                                411 kB/s | 858 kB  00:00:02     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : libxslt-1.1.28-5.el7.x86_64                                                                                                                       1/2 
  Installing : postgresql94-contrib-9.4.11-2PGDG.rhel7.x86_64                                                                                                    2/2 
  Verifying  : postgresql94-contrib-9.4.11-2PGDG.rhel7.x86_64                                                                                                    1/2 
  Verifying  : libxslt-1.1.28-5.el7.x86_64                                                                                                                       2/2 

Installed:
  postgresql94-contrib.x86_64 0:9.4.11-2PGDG.rhel7                                                                                                                   

Dependency Installed:
  libxslt.x86_64 0:1.1.28-5.el7                                                                                                                                      

Complete!
```

```shell-session
-bash-4.2$ psql postgres
psql (9.4.11)
Type "help" for help.

postgres=# create extension postgres_fdw;
CREATE EXTENSION
postgres=#