pgAdmin错误：

连接到服务器时出错：无法从服务器接收数据：软件导致连接中止(0x00002745 / 10053)

postgresql.conf中

#------------------------------------------------------------------------------
# CONNECTIONS AND AUTHENTICATION
#------------------------------------------------------------------------------

# - Connection Settings -

listen_addresses = '*'
port = 5432

的pg_hba.conf

local   all             postgres                                peer

# TYPE  DATABASE        USER            ADDRESS                 METHOD

host    all             all             0.0.0.0/0               md5
host    all             all             127.0.0.1/32            md5
host    all             all             ::1/128                 md5

netstat -nlp | 5432

tcp        0      0 127.0.0.1:5432          0.0.0.0:*               LISTEN      29035/postgres
unix  2      [ ACC ]     STREAM     LISTENING     50823    29035/postgres      /var/run/postgresql/.s.PGsql.5432

iptables规则

iptables -I INPUT -p tcp --dport 5432 -j ACCEPT

Postgresql服务已重新启动,pgAdmin仍然提供错误.是什么原因导致了它？