I am curently using RHEL6, while I make policy drop in iptables ,there will be problem in nfs while booting .
for command #service nfs restart ,it will show the failed.
please help me soon

Hi, welcome to LQ!

Open ports (permit them) that NFS requires?

yes , I have open the port .
# vim /etc/sysconfig/nfs
LOCKD_TCPPORT=32803
LOCKD_UDPPORT=32769
STATD_PORT=662
MOUNTD_PORT=892 :wq

And in iptables i have done follwing
iptables -P INPUT DROP
iptables -P OUTPUT ACCEPT
iptables -P FORWARD DROP
iptables -F
iptables -A INPUT -i l0 -j ACCEPT
iptables -A INPUT -s 192.168.1.1 -d 192.168.1.2 -p tcp --dport 2049 -j ACCEPT

iptables -A INPUT -s 192.168.1.1 -d 192.168.1.2 -p udp --dport 2049 -j ACCEPT

iptables -A INPUT -s 192.168.1.1 -d 192.168.1.2 -p tcp --dport 111 -j ACCEPT
iptables -A INPUT -s 192.168.1.1 -d 192.168.1.2 -p udp --dport 111 -j ACCEPT

iptables -A INPUT -s 192.168.1.1 -d 192.168.1.2 -p tcp --dport 892 -j ACCEPT
iptables -A INPUT -s 192.168.1.1 -d 192.168.1.2 -p udp --dport 892 -j ACCEPT

iptables -A INPUT -s 192.168.1.1 -d 192.168.1.2 -p tcp --dport 662 -j ACCEPT
iptables -A INPUT -s 192.168.1.1 -d 192.168.1.2 -p udp --dport 662 -j ACCEPT

iptables -A INPUT -s 192.168.1.1 -d 192.168.1.2 -p tcp --dport 32803 -j ACCEPT

iptables -A INPUT -s 192.168.1.1 -d 192.168.1.2 -p udp --dport 32769 -j ACCEPT

iptables -I INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT

service iptables save
service iptables restart


But when i give the command #service nfs restart ,it shows the following command
Starting NFS quotas: Failed

Starting NFS daemon: Failed
Starting NFS mountd: Failed

This happen is my laptop (lenovo G460)
please help me as soon as possible