How connect Postgres to localhost server using pgAdmin on Ubuntu?

Question

I installed Postgres with this command

sudo apt-get install postgresql postgresql-client postgresql-contrib libpq-dev

Using psql --ve

Answer 1

Modify password for role postgres:

sudo -u postgres psql postgres

alter user postgres with password 'postgres';

Now connect to pgadmin using username postgres and password postgres

Now you can create roles & databases using pgAdmin

How to change PostgreSQL user password?