openstack環(huán)境里安裝centos6.5系統(tǒng)的虛擬機(jī)，安裝好后，發(fā)現(xiàn)沒有/etc/syscofig/iptables防火墻配置文件。
解決辦法如下：
[root@kvm-server005 ~]# iptables -P OUTPUT ACCEPT
[root@kvm-server005 ~]# /etc/init.d/iptables save
iptables: Saving firewall rules to /etc/sysconfig/iptables:[ OK ]
這樣，/etc/sysconfig/iptables配置文件就有了
[root@kvm-server005 ~]# cat /etc/sysconfig/iptables
# Generated by iptables-save v1.4.7 on Wed Aug 31 01:14:57 2016
*filter
:INPUT ACCEPT [43:3196]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [23:2380]
COMMIT
# Completed on Wed Aug 31 01:14:57 2016
再補(bǔ)充點(diǎn)其他內(nèi)容配置：
[root@kvm-server005 ~]# cat /etc/sysconfig/iptables
# Generated by iptables-save v1.4.7 on Wed Aug 31 01:14:57 2016
*filter
:INPUT ACCEPT [43:3196]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [23:2380]
-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -s 192.168.1.0/24 -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT
# Completed on Wed Aug 31 01:14:57 2016
[root@kvm-server005 ~]# /etc/init.d/iptables restart
iptables: Setting chains to policy ACCEPT: filter [ OK ]
iptables: Flushing firewall rules: [ OK ]
iptables: Unloading modules: [ OK ]
iptables: Applying firewall rules: [ OK ]
[root@kvm-server005 ~]#
