I'm just going to throw this out there because I have no clue what is causing this problem or how to fix it. selinux is not enabled nor is any sort of firewall. (To my knowledge -- I did a kickstart install with firewall --disabled )

[root@node2 ~]# rpcinfo
program version netid address service owner
100000 4 tcp 0.0.0.0.0.111 portmapper superuser
100000 3 tcp 0.0.0.0.0.111 portmapper superuser
100000 2 tcp 0.0.0.0.0.111 portmapper superuser
100000 4 udp 0.0.0.0.0.111 portmapper superuser
100000 3 udp 0.0.0.0.0.111 portmapper superuser
100000 2 udp 0.0.0.0.0.111 portmapper superuser
100000 4 local /v portmapper superuser
100000 3 local /v portmapper superuser
100000 2 local /v portmapper superuser
100024 1 udp 0.0.0.0.128.0 status unknown
100024 1 tcp 0.0.0.0.133.64 status unknown
[root@node2 ~]# rpcinfo -p localhost
rpcinfo: can't contact portmapper: RPC: Unknown host
[root@node2 ~]#

rpcinfo -p localhost works fine on my head node but for somereason (no matter what configuration I use) it locks up on all the other machines.