无法从远程地址连接到Postgres

Question

我无法从我的机器连接到运行Postgres的服务器.我想我已经正确配置了它.服务器上没有防火墙.

我在Ubuntu 12.04 LTS上运行Postgres 9.1.9

这是来自/etc/postgresql/9.1/main/pg_hba.conf

local   all             postgres                                peer

# TYPE  DATABASE        USER            ADDRESS                 METHOD

local   all             all                                     peer
host    all             all             0.0.0.0/0               md5
host    all             all             ::1/128                 md5

我listen_addresses = '*'在/etc/postgresql/9.1/main/postgresql.conf中

我已经停止并多次启动该服务.

netstat -tulnp:

Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:27017           0.0.0.0:*               LISTEN      19312/mongod    
tcp        0      0 0.0.0.0:28017           0.0.0.0:*               LISTEN      19312/mongod    
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      978/sshd        
tcp        0      0 0.0.0.0:5432            0.0.0.0:*               LISTEN      30239/postgres  
tcp6       0      0 :::22                   :::*                    LISTEN      978/sshd        
tcp6       0      0 :::5432                 :::*                    LISTEN      30239/postgres 

我的iptable是空的.

当我尝试连接到服务器时

psql -U postgres -h <MY_IP>

我明白了:

psql: could not connect to server: Operation timed out
Is the server running on host "<MY_IP>" and accepting
TCP/IP connections on port 5432?

有帮助吗？谢谢

编辑

端口5432上的tcpdump:

16:33:10.548507 7c:c3:a1:a2:d9:27 (oui Unknown) > 00:00:5e:00:01:01 (oui Unknown), ethertype IPv4 (0x0800), length 78: <MY_MAC> > <MY_SERVER>.postgresql: Flags [S], seq 95915852, win 65535, options [mss 1460,nop,wscale 4,nop,nop,TS val 1189142453 ecr 0,sackOK,eol], length 0