LOG: could not translate host name “localhost”, service “5432” to address: Name or service not known

I recently installed PostgreSQL on an Amazon Web Services CentOS instance however when I first attempted to start Postgres I received an error that I had never seen before. The pgstartup.log file located in /var/lib/pgsql contained the below data.

Error Contents Of pgstartup.log File:

To view the pgstartup.log file use the below command.

After viewing the error file I realized that for some reason there was no localhost configured by default on the AWS instance that was using a CentOS 5.3 base image. So to resolve the issue all I needed to do was add a hosts file to the /etc directory with the below contents.

Contents of /etc/hosts:

After adding the above to /etc/hosts I attempted to start Postgres again using the below command.

Start Postgres:

This time PostgreSQL started without an issue on the Amazon Web Services instance.

APPIP ERROR: amazonproducts[
AccessDeniedAwsUsers|The Access Key Id 1ZNGM52M8EWAXJFFRR82 is not enabled for accessing this version of Product Advertising API. Please migrate your credentials as referred here https://webservices.amazon.com/paapi5/documentation/migrating-your-product-advertising-api-account-from-your-aws-account.html.
]

APPIP ERROR: amazonproducts[
AccessDeniedAwsUsers|The Access Key Id 1ZNGM52M8EWAXJFFRR82 is not enabled for accessing this version of Product Advertising API. Please migrate your credentials as referred here https://webservices.amazon.com/paapi5/documentation/migrating-your-product-advertising-api-account-from-your-aws-account.html.
]