For PostgreSQL 9.5 you need new pgadmin3 version 1.22 – older cannot connect into new database.

(EDIT: changed version of epel – see comment – thanks)

Installation is not exactly straight forward but not difficult:

  • download package epel-release-7-8.noarch.rpm:
    • wget dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-8.noarch.rpm
  • install it:
    • yum install epel-release-7-8.noarch.rpm
  • install updates:
    • yum update
  • install pgadmin:
    • yum install pgadmin3_95.x86_64
  • if you have desktop, pgadmin will be in “Applications / Programming”
  • from terminal run it using:
    • pgadmin3