postgresql - What's the difference between sudo su - postgres and sudo ...
i have a problem with my postgreSQL setup on my new Mac OSX Lion machine. I can't seem to connect to the service. $ createuser -a -d _postgres. Password: createuser: could not connect to database postgres: FATAL: password authentication failed for user. I have no chance to find the correct password.
sql - Create a Superuser in postgres - Stack Overflow
sudo -u postgres is running the rest of the command string as the UNIX user postgres. sudo psql -U postgres db -w is running the command as the UNIX user root and (presumeably) connecting to postgres as the user "postgres" Probably the .pgpass file doesn't exist for the unix user postgres.
Why can't I `su postgres`? - Unix & Linux Stack Exchange
For a login shell, sudo -u postgres -i is preferable to sudo su - postgres. It doesn't require that the user have root access in /etc/sudoers, they only need the right to become user postgres. It also lets you enforce better access controls. For command execution. sudo -u postgres psql -c "SELECT 1".
19.3. Starting the Database Server - PostgreSQL
1. What Is PostgreSQL? 2. A Brief History of PostgreSQL. 3. Conventions. 4. Further Information. 5. Bug Reporting Guidelines. I. Tutorial. 1. Getting Started. 2. The SQL Language. 3. Advanced Features. II. The SQL Language. 4. SQL Syntax. 5. Data Definition. 6. Data Manipulation. 7.
First steps - PostgreSQL wiki
sudo su - postgres. From here, we can connect to the system by typing: psql. Notice how we can connect without a password. This is because Postgres has authenticated by username, which it assumes is secured. Do not use the Linux "postgres" user for anything other than accessing the database software. This is an important security consideration.
How to Create a Postgres User (All Methods) - phoenixNAP
It would be possible to configure sudo to allow you access to the postgres account even though it is locked for password authentication. The /etc/sudoers line would be something like this: Tim ALL=(postgres) ALL. The sudo command line equivalent to su postgres would be sudo -u postgres -s.
How To Install and Use PostgreSQL on Ubuntu 20.04
Description. psql is a terminal-based front-end to PostgreSQL. It enables you to type in queries interactively, issue them to PostgreSQL, and see the query results. Alternatively, input can be from a file or from command line arguments.
How to Connect to PostgreSQL Database from Linux or Windows - phoenixNAP
postgres=# GRANT ALL ON ALL TABLES IN SCHEMA test TO xxx; Disconnect postgres=# \q Became a standard user. The default authentication mode is set to 'ident' which means a given Linux user xxx can only connect as the postgres user xxx. # su - xxx Login from xxx user in shell to default postgres db
Getting Started with PostgreSQL: Essential psql Command Line ... - LinkedIn
PostgreSQL is a powerful, open source object-relational database system with over 35 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance. There is a wealth of information to be found describing how to install and use PostgreSQL through the official documentation .
How To Secure PostgreSQL on an Ubuntu VPS | DigitalOcean
1. Switch to the postgres user: sudo su - postgres. 2. Run the createuser command: createuser [name] In both cases, PostgreSQL automatically creates the user (i.e., the role with login permissions). Method 2: Using psql. Another way to create a new user in PostgreSQL is through the interactive psql shell. 1.