I'm trying to mount an NFS share on my client computer but cannot connect unless I turn the iptables service off. I'm not sure which rule is blocking the connection. My NFS/RPC ports all seem to be associated with ACCEPT rules in my firewall.
I'm still learning iptables, which is a lot more complex than I initially thought. (I have a bad habit of editing the iptables file directly and backing it up all the time.)
Client mount attempt:
Code:
mount -v 192.168.1.11:/install /shared
mount: trying 192.168.1.11 prog 100003 vers 3 prot tcp port 2049
mount: mount to NFS server '192.168.1.11' failed: timed out (retrying)
Server: /etc/sysconfig/nfs:
Code:
#
# Define which protocol versions mountd
# will advertise. The values are "no" or "yes"
# with yes being the default
#MOUNTD_NFS_V1="no"
#MOUNTD_NFS_V2="no"
#MOUNTD_NFS_V3="no"
#
#
# Path to remote quota server. See rquotad(8)
#RQUOTAD="/usr/sbin/rpc.rquotad"
# Port rquotad should listen on.
RQUOTAD_PORT=10005
# Optinal options passed to rquotad
#RPCRQUOTADOPTS=""
#
#
# TCP port rpc.lockd should listen on.
LOCKD_TCPPORT=10000
# UDP port rpc.lockd should listen on.
LOCKD_UDPPORT=10001
#
#
# Optional arguments passed to rpc.nfsd. See rpc.nfsd(8)
# Turn off v2 and v3 protocol support
#RPCNFSDARGS="-N 2 -N 3"
# Turn off v4 protocol support
#RPCNFSDARGS="-N 4"
# Number of nfs server processes to be started.
# The default is 8.
#RPCNFSDCOUNT=8
# Stop the nfsd module from being pre-loaded
#NFSD_MODULE="noload"
#
#
# Optional arguments passed to rpc.mountd. See rpc.mountd(8)
#RPCMOUNTDOPTS=""
# Port rpc.mountd should listen on.
MOUNTD_PORT=10004
#
#
# Optional arguments passed to rpc.statd. See rpc.statd(8)
#STATDARG=""
# Port rpc.statd should listen on.
STATD_PORT=10002
# Outgoing port statd should used. The default is port
# is random
STATD_OUTGOING_PORT=10003
# Specify callout program
#STATD_HA_CALLOUT="/usr/local/bin/foo"
#
#
# Optional arguments passed to rpc.idmapd. See rpc.idmapd(8)
#RPCIDMAPDARGS=""
#
# Set to turn on Secure NFS mounts.
#SECURE_NFS="yes"
# Optional arguments passed to rpc.gssd. See rpc.gssd(8)
#RPCGSSDARGS="-vvv"
# Optional arguments passed to rpc.svcgssd. See rpc.svcgssd(8)
#RPCSVCGSSDARGS="-vvv"
# Don't load security modules in to the kernel
#SECURE_NFS_MODS="noload"
#
# Don't load sunrpc module.
#RPCMTAB="noload"
Server: iptables -nL:
Code:
Chain INPUT (policy ACCEPT)
target prot opt source destination
RH-Firewall-1-INPUT all -- 0.0.0.0/0 0.0.0.0/0
Chain FORWARD (policy ACCEPT)
target prot opt source destination
RH-Firewall-1-INPUT all -- 0.0.0.0/0 0.0.0.0/0
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
Chain RH-Firewall-1-INPUT (2 references)
target prot opt source destination
ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 icmp type 255
ACCEPT esp -- 0.0.0.0/0 0.0.0.0/0
ACCEPT ah -- 0.0.0.0/0 0.0.0.0/0
ACCEPT udp -- 0.0.0.0/0 224.0.0.251 udp dpt:5353
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:631
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:631
ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:25
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:21
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 state NEW udp dpt:137
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 state NEW udp dpt:138
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:139
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:445
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:443
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:80
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:5801
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:5901
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:6001
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:53
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:53
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:111
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:111
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpt:2049
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpt:2049
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 tcp dpts:10000:10005
ACCEPT udp -- 0.0.0.0/0 0.0.0.0/0 udp dpts:10000:10005
REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
