Ubuntu10.10 Nic configuration file/etc/network/interfaces restart failure

Environment: ubuntu10.10 objective: to configure various operations found on the iptables rule network when the NIC is started: sh-c & quot; iptables-save & gt;/etc/iptables. rules & quot; vi/etc/network/interfaces # Add a command under the target Nic # pre-upiptabl environment: ubuntu 10.10 target: configure various operations found on the network by loading iptables rules during Nic startup: sh-c "iptables-save>/etc/iptables. rules "vi/etc/network/interfaces # Add a command under the target Nic # pre-up iptables-restore </etc/iptables. rules, however, has been tested and found. After the restart, these configurations will be lost. check the file header and you will find it. # This configuration file is auto-generated. # WARNING: Do not edit this file, your changes will be lost. # Please create/edit/etc/network/interfaces. head and/etc/network/interfaces. tail instead, # their contents will be inserted at the beginning and at the end # of this file, respectively. # NOTE: it is NOT guaranteed that the contents of/etc/network/interfaces. tail # will be at the very end of thi S file. the file is clearly written./etc/network/interfaces is automatically generated. To customize the configuration, create/etc/network/interfaces. head or/etc/network/interfaces. tail. Among them,/etc/network/interfaces. tail is not recommended. The following is an example: auto venet0: 0 iface venet0: 0 inet static address 184.22.224.125 netmask 255.255.255.0 pre-up iptables-restore </etc/iptables. rules