Are you calling the perl from apache (assuming yes)..? Does the web user have the rights to execute the perl code?
Try disabling SELinux.. You'll get it..
On Fri, 2014-01-24 at 09:35 -0800, Susan Cassidy wrote: > I've already checked that. It is enabled. I am running Scientific > Linux. > > > > On Fri, Jan 24, 2014 at 8:28 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote: > Susan Cassidy <susan.cassidy@decisionsciencescorp.com> writes: > > $dbh = DBI->connect("dbi:Pg:dbname=$dbname;host= > ${dbserver};port=$dbport;", > > $dbuser, $dbpasswd) or > > errexit( "Unable to connect to dbname $dbname, err: > $DBI::errstr"); > > > The exact same connection string works fine in a standalone > perl program. > > Given the permissions errors you mentioned upthread, I'm > wondering whether > you're running on Red Hat/CentOS, and if so whether SELinux is > preventing > apache from connecting to unexpected port numbers. I seem to > recall > that there's a SELinux boolean specifically intended to allow > or disallow > database connections from webservers, but I couldn't tell you > the name > offhand. > > regards, tom lane > >