082e659c7b
rpcbind is required for NFSv2 and v3 . It seems this gets installed by nfs-common. It was never used by us since the firewall blocks port 111 anyways. NFSv3 needs 2049 for NFS, 111 for portmap, 635 for mountd, 4045 for NLM, 4046 for NSM, 4049 for rquota ... NFSv4 works better because there's just a single target port, plus the "heartbeat" of lease renewal would keep the TCP/IP session alive. https://serverfault.com/questions/949127/nfs-client-firewall-settings-and-rpcbind https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/6/html/Storage_Administration_Guide/s2-nfs-methodology-portmap.html#s2-nfs-methodology-portmap https://community.netapp.com/t5/Tech-ONTAP-Blogs/NFSv3-and-NFSv4-What-s-the-difference/ba-p/441316