大家好，又见面了，我是你们的朋友全栈君。
我试图使用ufw使用sudo ufw allow 5432 / tcp在ubuntu上打开端口5432
然后我使用nmap来查看端口5432是否已打开,我得到了这个：
[email protected]:~# sudo nmap -sS -O 127.0.0.1
Starting Nmap 5.21 ( http://nmap.org ) at 2011-12-01 14:28 MSK
Nmap scan report for localhost.localdomain (127.0.0.1)
Host is up (0.000084s latency).
Not shown: 994 closed ports
PORT STATE SERVICE
22/tcp open ssh
25/tcp open smtp
80/tcp open http
587/tcp open submission
5432/tcp open postgresql
10000/tcp open snet-sensor-mgmt
Device type: general purpose
Running: Linux 2.6.X
OS details: Linux 2.6.15 – 2.6.30
Network Distance: 0 hops
OS detection performed. Please report any incorrect results at http://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 2.28 seconds
[email protected]:~# sudo nmap -sS -O 1xx.xxx.xxx.xxx
Starting Nmap 5.21 ( http://nmap.org ) at 2011-12-01 14:30 MSK
Nmap scan report for domain.info (1xx.xxx.xxx.xxx)
Host is up (0.000086s latency).
Not shown: 997 closed ports
PORT STATE SERVICE
22/tcp open ssh
80/tcp open http
10000/tcp open snet-sensor-mgmt
Device type: general purpose
Running: Linux 2.6.X
OS details: Linux 2.6.15 – 2.6.30
Network Distance: 0 hops
OS detection performed. Please report any incorrect results at http://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 2.65 seconds
1xx.xxx.xxx.xxx是我服务器的IP.
我编辑了pg_hba.conf：
# DO NOT DISABLE!
# If you change this first entry you will need to make sure that the
# database
# super user can access the database using some other method.
# Noninteractive
# access to all databases is required during automatic maintenance
# (custom daily cronjobs, replication, and similar tasks).
#
# Database administrative login by UNIX sockets
local all postgres ident
# TYPE DATABASE USER CIDR-ADDRESS METHOD
# “local” is for Unix domain socket connections only
local all all ident
# IPv4 local connections:
host all all 0.0.0.0/0 md5
# IPv6 local connections:
host all all ::1/128 md5
但是5432端口尚未打开.
你需要编辑你的pg_hba.conf：
host all all 192.168.0.0/24 trust
这允许每个来自192.168.0.0/24网络的连接.所有人的外卡都是0.0.0.0/0.更多信息here.
然后编辑postgresql.conf并更改listen_address：
listen_addresses=’*’
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