PostgreSQL 13 : Remote Connection2023/03/06 |
It's possible to connect to PostgreSQL Server only from Localhost by default like here,
but if you'd like to connect to PostgreSQL from Remote hosts, change settings like follows. |
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[1] | There are many authentication methods on PostgreSQL, though. On this examaple, Configure MD5 password method. |
[root@www ~]#
vi /var/lib/pgsql/data/postgresql.conf # line 60 : uncomment and change # if listens only IPv4, set '0.0.0.0' listen_addresses = ' * '
[root@www ~]#
vi /var/lib/pgsql/data/pg_hba.conf # add to the end # TYPE DATABASE USER ADDRESS METHOD # "local" is for Unix domain socket connections only local all all peer # IPv4 local connections: host all all 127.0.0.1/32 ident # IPv6 local connections: host all all ::1/128 ident # Allow replication connections from localhost, by a user with the # replication privilege. local replication all peer host replication all 127.0.0.1/32 ident host replication all ::1/128 ident # specify network range you allow to connect on [ADDRESS] section # if allow all, specify [0.0.0.0/0] host all all 10.0.0.0/24 md5[root@www ~]# systemctl restart postgresql |
[2] | If Firewalld is running, allow PostgreSQL service. |
[root@www ~]# firewall-cmd --add-service=postgresql success [root@www ~]# firewall-cmd --runtime-to-permanent success |
[3] | To connect to a PostgreSQL Database with MD5 password, set password for each PostgreSQL user. |
# connect to own database [alma@www ~]$ psql -d testdb psql (13.5) Type "help" for help. # set or change own password testdb=> \password Enter new password: Enter it again: testdb=> \q # also possible to set or change password for any users with PostgreSQL admin user [postgres@www ~]$ psql -c "alter user alma with password 'password';" ALTER ROLE |
[4] | Verify settings to connect to PostgreSQL Database with MD5 password from remote hosts. |
[root@node01 ~]# psql -h www.srv.world -d testdb -U alma Password for user alma: # password psql (13.5) Type "help" for help. testdb=> # connected |
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