diff --git a/manifests/database/postgresql.pp b/manifests/database/postgresql.pp
index a380c71d4..bceb083f9 100644
--- a/manifests/database/postgresql.pp
+++ b/manifests/database/postgresql.pp
@@ -24,7 +24,7 @@
   assert_private()
 
   if ($database_schema_path == false) or ($database_schema_path == '') {
-    if member(['CentOS', 'RedHat', 'OracleLinux', 'VirtuozzoLinux'], $facts['os']['name']) {
+    if $facts['os']['family'] == 'RedHat' and $facts['os']['release']['major'] == '7' {
       if versioncmp($zabbix_version, '6.0') >= 0 {
         $schema_path = '/usr/share/zabbix-sql-scripts/postgresql/'
       } else {
diff --git a/manifests/proxy.pp b/manifests/proxy.pp
index ccc385448..f2a6f1913 100644
--- a/manifests/proxy.pp
+++ b/manifests/proxy.pp
@@ -420,32 +420,11 @@
     }
   }
 
-  # Now we are going to install the correct packages.
-  case $facts['os']['name'] {
-    'redhat', 'centos', 'oraclelinux', 'VirtuozzoLinux': {
-      #There is no zabbix-proxy package in 3.0
-      if versioncmp('3.0',$zabbix_version) > 0 {
-        package { 'zabbix-proxy':
-          ensure  => $zabbix_package_state,
-          require => Package["zabbix-proxy-${db}"],
-          tag     => 'zabbix',
-        }
-      }
-
-      # Installing the packages
-      package { "zabbix-proxy-${db}":
-        ensure => $zabbix_package_state,
-        tag    => 'zabbix',
-      }
-    } # END 'redhat','centos','oraclelinux'
-    default : {
-      # Installing the packages
-      package { "zabbix-proxy-${db}":
-        ensure => $zabbix_package_state,
-        tag    => 'zabbix',
-      }
-    } # END default
-  } # END case $facts['os']['name']
+  # Installing the packages
+  package { "zabbix-proxy-${db}":
+    ensure => $zabbix_package_state,
+    tag    => 'zabbix',
+  }
 
   # Controlling the 'zabbix-proxy' service
   if $manage_service {
diff --git a/manifests/repo.pp b/manifests/repo.pp
index 384a6c1a4..b0a176d82 100644
--- a/manifests/repo.pp
+++ b/manifests/repo.pp
@@ -70,8 +70,8 @@
           priority => '1',
         }
 
-        # Zabbix 5.0 frontend on CentOS 7 has different location.
-        if ($facts['os']['name'] == 'CentOS' and $majorrelease == '7' and $zabbix_version == '5.0') {
+        # Zabbix 5.0 frontend on EL7 has different location.
+        if ($majorrelease == '7' and $zabbix_version == '5.0') {
           $_frontend_repo_location = $frontend_repo_location ? {
             undef   => "https://repo.zabbix.com/zabbix/${zabbix_version}/rhel/${majorrelease}/\$basearch/frontend",
             default => $frontend_repo_location,
@@ -87,10 +87,23 @@
           }
         }
 
-        if ($facts['os']['name'] == 'CentOS' and $facts['os']['release']['major'] == '7' and versioncmp($zabbix_version, '5.0') >= 0) {
-          package { 'zabbix-required-scl-repo':
-            ensure => 'latest',
-            name   => 'centos-release-scl',
+        if ($facts['os']['release']['major'] == '7' and versioncmp($zabbix_version, '5.0') >= 0) {
+          case $facts['os']['name'] {
+            'CentOS': {
+              $scl_package_name = 'centos-release-scl'
+            }
+            'OracleLinux': {
+              $scl_package_name = 'oracle-softwarecollection-release-el7'
+            }
+            default: {
+              $scl_package_name = undef
+            }
+          }
+          if $scl_package_name {
+            package { 'zabbix-required-scl-repo':
+              ensure => 'latest',
+              name   => $scl_package_name,
+            }
           }
         }
       }
diff --git a/manifests/web.pp b/manifests/web.pp
index ef29e3b85..8060bea21 100644
--- a/manifests/web.pp
+++ b/manifests/web.pp
@@ -217,8 +217,8 @@
     }
   }
 
-  case $facts['os']['name'] {
-    'ubuntu', 'debian': {
+  case $facts['os']['family'] {
+    'Debian': {
       $zabbix_web_package = 'zabbix-frontend-php'
       $php_db_package = "php-${db}"
 
@@ -230,7 +230,7 @@
         ],
       }
     }
-    'CentOS', 'RedHat': {
+    'RedHat': {
       $zabbix_web_package = 'zabbix-web'
       if ($facts['os']['release']['major'] == '7' and versioncmp($zabbix_version, '5.0') >= 0) {
         package { "zabbix-web-${db}-scl":
@@ -258,7 +258,7 @@
         tag     => 'zabbix',
       }
     }
-  } # END case $facts['os']['name']
+  } # END case $facts['os']['family']
 
   file { '/etc/zabbix/web':
     ensure  => directory,
diff --git a/spec/acceptance/server_spec.rb b/spec/acceptance/server_spec.rb
index 4d6d9cf8a..59594a225 100644
--- a/spec/acceptance/server_spec.rb
+++ b/spec/acceptance/server_spec.rb
@@ -19,7 +19,8 @@
         class { 'postgresql::globals':
           encoding => 'UTF-8',
           locale   => 'en_US.UTF-8',
-          manage_package_repo => true,
+          manage_package_repo => $facts['os']['release']['major'] != '8',
+          manage_dnf_module => $facts['os']['release']['major'] == '8',
           version => '12',
         }
         -> class { 'postgresql::server': }
diff --git a/spec/acceptance/zabbix_application_spec.rb b/spec/acceptance/zabbix_application_spec.rb
index a4a08dc73..19374986a 100644
--- a/spec/acceptance/zabbix_application_spec.rb
+++ b/spec/acceptance/zabbix_application_spec.rb
@@ -25,7 +25,8 @@ class { 'apache':
         include apache::mod::php
         class { 'postgresql::globals':
           locale   => 'en_US.UTF-8',
-          manage_package_repo => true,
+          manage_package_repo => $facts['os']['release']['major'] != '8',
+          manage_dnf_module => $facts['os']['release']['major'] == '8',
           version => '12',
         }
         -> class { 'postgresql::server': }
diff --git a/spec/acceptance/zabbix_host_spec.rb b/spec/acceptance/zabbix_host_spec.rb
index dc00d810b..2fe3cc632 100644
--- a/spec/acceptance/zabbix_host_spec.rb
+++ b/spec/acceptance/zabbix_host_spec.rb
@@ -34,7 +34,8 @@ class { 'apache':
         include apache::mod::php
         class { 'postgresql::globals':
           locale   => 'en_US.UTF-8',
-          manage_package_repo => true,
+          manage_package_repo => $facts['os']['release']['major'] != '8',
+          manage_dnf_module => $facts['os']['release']['major'] == '8',
           version => '12',
         }
         -> class { 'postgresql::server': }
diff --git a/spec/acceptance/zabbix_hostgroup_spec.rb b/spec/acceptance/zabbix_hostgroup_spec.rb
index 99fb43575..b380fce03 100644
--- a/spec/acceptance/zabbix_hostgroup_spec.rb
+++ b/spec/acceptance/zabbix_hostgroup_spec.rb
@@ -18,7 +18,8 @@ class { 'apache':
         include apache::mod::php
         class { 'postgresql::globals':
           locale   => 'en_US.UTF-8',
-          manage_package_repo => true,
+          manage_package_repo => $facts['os']['release']['major'] != '8',
+          manage_dnf_module => $facts['os']['release']['major'] == '8',
           version => '12',
         }
         -> class { 'postgresql::server': }
diff --git a/spec/acceptance/zabbix_proxy_spec.rb b/spec/acceptance/zabbix_proxy_spec.rb
index b7c5da3ba..3c5c11d72 100644
--- a/spec/acceptance/zabbix_proxy_spec.rb
+++ b/spec/acceptance/zabbix_proxy_spec.rb
@@ -19,7 +19,8 @@ class { 'apache':
       include apache::mod::php
       class { 'postgresql::globals':
         locale   => 'en_US.UTF-8',
-        manage_package_repo => true,
+        manage_package_repo => $facts['os']['release']['major'] != '8',
+        manage_dnf_module => $facts['os']['release']['major'] == '8',
         version => '12',
       }
       -> class { 'postgresql::server': }
diff --git a/spec/acceptance/zabbix_template_host_spec.rb b/spec/acceptance/zabbix_template_host_spec.rb
index 576742c9e..e033f4039 100644
--- a/spec/acceptance/zabbix_template_host_spec.rb
+++ b/spec/acceptance/zabbix_template_host_spec.rb
@@ -27,7 +27,8 @@ class { 'apache':
         include apache::mod::php
         class { 'postgresql::globals':
           locale   => 'en_US.UTF-8',
-          manage_package_repo => true,
+          manage_package_repo => $facts['os']['release']['major'] != '8',
+          manage_dnf_module => $facts['os']['release']['major'] == '8',
           version => '12',
         }
         -> class { 'postgresql::server': }
diff --git a/spec/acceptance/zabbix_template_spec.rb b/spec/acceptance/zabbix_template_spec.rb
index 2fe4c7991..5f52043b2 100644
--- a/spec/acceptance/zabbix_template_spec.rb
+++ b/spec/acceptance/zabbix_template_spec.rb
@@ -18,7 +18,8 @@ class { 'apache':
           include apache::mod::php
           class { 'postgresql::globals':
             locale   => 'en_US.UTF-8',
-            manage_package_repo => true,
+            manage_package_repo => $facts['os']['release']['major'] != '8',
+            manage_dnf_module => $facts['os']['release']['major'] == '8',
             version => '12',
           }
           -> class { 'postgresql::server': }
diff --git a/spec/classes/database_postgresql_spec.rb b/spec/classes/database_postgresql_spec.rb
index 808c07b92..975f0fceb 100644
--- a/spec/classes/database_postgresql_spec.rb
+++ b/spec/classes/database_postgresql_spec.rb
@@ -20,21 +20,18 @@
       end
 
       supported_versions.each do |zabbix_version|
-        path = case facts[:os]['name']
-               when 'CentOS', 'RedHat', 'OracleLinux', 'VirtuozzoLinux'
-                 # Path on RedHat
+        path = if facts[:os]['family'] == 'RedHat' && facts[:os]['release']['major'] == '7'
+                 # Path on EL7
                  if Puppet::Util::Package.versioncmp(zabbix_version, '6.0') >= 0
                    '/usr/share/zabbix-sql-scripts/postgresql/'
                  else
                    "/usr/share/doc/zabbix-*-pgsql-#{zabbix_version}*/"
                  end
+               # Path on Debian and EL8
+               elsif Puppet::Util::Package.versioncmp(zabbix_version, '6.0') >= 0
+                 '/usr/share/zabbix-sql-scripts/postgresql/'
                else
-                 # Path on Debian
-                 if Puppet::Util::Package.versioncmp(zabbix_version, '6.0') >= 0
-                   '/usr/share/zabbix-sql-scripts/postgresql/'
-                 else
-                   '/usr/share/doc/zabbix-*-pgsql'
-                 end
+                 '/usr/share/doc/zabbix-*-pgsql'
                end
 
         sql_server = case zabbix_version
diff --git a/spec/classes/repo_spec.rb b/spec/classes/repo_spec.rb
index 3b1f46ec1..3973ce126 100644
--- a/spec/classes/repo_spec.rb
+++ b/spec/classes/repo_spec.rb
@@ -85,6 +85,7 @@
             it { is_expected.to contain_yumrepo('zabbix-nonsupported').with_gpgkey('https://repo.zabbix.com/RPM-GPG-KEY-ZABBIX-79EA5ED4') }
 
             it { is_expected.to contain_package('zabbix-required-scl-repo').with_ensure('latest').with_name('centos-release-scl') } if facts[:os]['name'] == 'CentOS'
+            it { is_expected.to contain_package('zabbix-required-scl-repo').with_ensure('latest').with_name('oracle-softwarecollection-release-el7') } if facts[:os]['name'] == 'OracleLinux'
           end
         when '9'