The pg_hba.conf file manages connections for the Postgres server. You must ensure that the pg_hba.conf file on each monitored server allows connections from the PEM server, the monitoring PEM agent, and the host of the PEM-HTTPD server.For information about modifying the pg_hba.conf file, see the PEM Getting Started Guide, available at:Information about managing authentication is also available in the Postgres core documentation, available at:Before installing the PEM Server on a system that is running SELinux, you must set SELinux to permissive mode.The following example works on Redhat Enterprise Linux, Fedora Core or CentOS distributions; use comparable commands that are compatible with your Linux distribution to set SELinux to permissive mode during installation and return it to enforcing mode when installation is complete.Before installing the PEM Server, set SELinux to permissive mode with the command:When the installation is complete, return SELinux to enforcing mode with the command:Before installing the PEM agent on a CentOS 7.x host, you must ensure that the host contains the wxbase and epel-release packages. To install the packages, open a command line, assume root privileges, and invoke the commands:If you are installing PEM components on Windows, you may be required to invoke the PEM installers with Administrative privileges. To invoke an installer using Administrator privileges, right click on the installer icon and select Run as Administrator from the context menu.At this time, the PEM server and web interface support a locale of English(US) en_US and use of a period (.) as a language separator character. Using an alternate locale, or a separator character other than a period may result in errors.If you are using Internet Explorer on a Windows Server host to access monitored servers with the PEM web interface, you must disable Internet Explorer's Enhanced Security to take advantage of PEM functionality. If you do not wish to disable IE Enhanced Security, we recommend that you use an alternate browser (such as Chrome).