/home/ac/cluster      192.168.0.74(rw,sync,root_squash,subtree_check)
/home/ac/cluster      192.168.0.73(rw,sync,root_squash,subtree_check)
/home/ac/cluster      192.168.0.72(rw,sync,root_squash,subtree_check)
/home/ac/cluster      192.168.0.71(rw,sync,root_squash,subtree_check)
/home/ac/cluster      192.168.0.70(rw,sync,root_squash,subtree_check)