diff --git a/inventory/group_vars/odcs-backend b/inventory/group_vars/odcs-backend
index ad59ca6d4d..570ecd1dfb 100644
--- a/inventory/group_vars/odcs-backend
+++ b/inventory/group_vars/odcs-backend
@@ -28,6 +28,11 @@ virt_install_command: "{{ virt_install_command_two_nic }}"
 # NOTE -- read-only mount of /mnt/fedora_koji here.
 nfs_mount_opts: "ro,hard,bg,intr,noatime,nodev,nosuid,nfsvers=3"
 
+tcp_ports: [
+    # 8 ports for fedmsg.
+    3000, 3001, 3002, 3003, 3004, 3005, 3006, 3007,
+]
+
 # Neeed for rsync from log01 for logs.
 custom_rules: [ '-A INPUT -p tcp -m tcp -s 10.5.126.13 --dport 873 -j ACCEPT', '-A INPUT -p tcp -m tcp -s 192.168.1.59 --dport 873 -j ACCEPT' ]
 
diff --git a/inventory/group_vars/odcs-backend-stg b/inventory/group_vars/odcs-backend-stg
index 3a24be80c9..331c0e4007 100644
--- a/inventory/group_vars/odcs-backend-stg
+++ b/inventory/group_vars/odcs-backend-stg
@@ -30,6 +30,11 @@ virt_install_command: "{{ virt_install_command_two_nic }}"
 # NOTE -- read-only mount of /mnt/fedora_koji here.
 nfs_mount_opts: "ro,hard,bg,intr,noatime,nodev,nosuid,nfsvers=3"
 
+tcp_ports: [
+    # 8 ports for fedmsg.
+    3000, 3001, 3002, 3003, 3004, 3005, 3006, 3007,
+]
+
 # Neeed for rsync from log01 for logs.
 custom_rules: [ '-A INPUT -p tcp -m tcp -s 10.5.126.13 --dport 873 -j ACCEPT', '-A INPUT -p tcp -m tcp -s 192.168.1.59 --dport 873 -j ACCEPT' ]