PostgreSQL – How to Recover a Deleted pg_hba.conf File on Linux

If you have to connect via TCP/IP using IPv4, i.e., the most common situation, you should check what is your IP address. Ince you have it, add this line to pg_hba.conf file on the server. This line should be added after all lines that start with local and before other lines that start with host:

host databasename username ipaddress/32 md5

if youo don't know your ip address, or if it is variable (for a dialup line), then use 0.0.0.0/0 instead of ipaddress/32. This way you will allow connection from any IP address.

But, if your provider is responsible for postgresql, then he should make thee changes. Are you sure you need to configure that file on the server?

If you are only responsible for your client machine, and you want to connect via pgAdminIII, then just use the hostname portnumber username and password provided by your provider. If you cannot connect using these settings, please come back here and write what is the exact error you get from pgAdminIII.

First make sure the file exists really in that location. Run ls $PGDATA if there is a mistake in the environment variable you will either see the wrong files or get an error because the path does not exist.

Then make sure the owner of the parent directory /home/destination_data_directory and all directories and files under match the user you start pg_ctl under. If they are not either use

su postgres_user

to switch to the right user before running pg_ctl or use

chown -R postgres_user /home/destination_data_directory

to change the owner of the directory and everything under it.