Firewall Configuration
From OSNEXUS Online Documentation Site
For most deployments there is no need to add firewall rules to block the standard storage services like NFS, CIFS, iSCSI. That said, for systems with ports that are facing public networks it is useful to block services that are not being used.
Contents
Blocking NFS
If you're not using Network Shares with NFS you can block NFS service access like so:
touch /etc/init.d/iptables.blocknfs service iptables restart
Blocking CIFS/SMB
If you're not using Network Shares with CIFS/SMB Windows clients you can block SMB access to the Samba service access like so:
touch /etc/init.d/iptables.blocksmb service iptables restart
Blocking iSCSI Access
If you're not using Storage Volumes via iSCSI you can block access to the iSCSI target service access like so:
touch /etc/init.d/iptables.blockiscsi service iptables restart