ubuntu – 保存对iptables的更改

我已经运行了iptables,因为我可以使用以下命令…

sudo / sbin / iptables sudo / sbin / iptables -t nat -I PREROUTING -p tcp –dport 80 -j REDIRECT –to-port 8080

但我不能……

服务iptables保存
iptables：无法识别的服务

当我重新启动服务器时映射停止时,如何实际保存这些更改？

谢谢.

据我所知,Ubuntu在最新版本中使用了 UFW,因此很可能它没有iptables的SysV init脚本.如果您对UFW不满意,可以使用sudo iptables-save> /etc/iptables.rules存储你当前的规则,然后调用sudo iptables-restore<来自rc.local的/etc/iptables.rules(例如)恢复启动时的规则. 或者,您可以按照指定的 here为iptables添加自己的init脚本：

#!/bin/sh -e
### BEGIN INIT INFO
# Provides:          iptables
# Required-Start:    mountvirtfs ifupdown $local_fs
# Default-Start:     S
# Default-Stop:      0 6
### END INIT INFO

# July 9,2007
# James B. Crocker <[e-mail]>
# Creative Commons Attribution - Share Alike 3.0 License (BY,SA)
# Script to load/unload/save iptables firewall settings.

PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin"

IPTABLES=/sbin/iptables
IPTABLES_SAVE=/sbin/iptables-save
IPTABLES_RESTORE=/sbin/iptables-restore

IPTABLES_CONFIG=/etc/iptables.conf

[ -x $IPTABLES ] || exit 0

. /lib/lsb/init-functions


case "$1" in
start)
    log_action_begin_msg "Starting firewall"
        type usplash_write >/dev/null 2>/dev/null && usplash_write "TIMEOUT 120" || true
    if $IPTABLES_RESTORE < $IPTABLES_CONFIG ; then
        log_action_end_msg $?
    else
    log_action_end_msg $?
    fi
        type usplash_write >/dev/null 2>/dev/null && usplash_write "TIMEOUT 15" || true
    ;;

stop)
    log_action_begin_msg "Saving current firewall configuration"
    if $IPTABLES_SAVE > $IPTABLES_CONFIG ; then
        log_action_end_msg $?
    else
        log_action_end_msg $?
    fi
    log_action_begin_msg "Flushing ALL firewall rules from chains!"
    if $IPTABLES -F ; then
        log_action_end_msg $?
    else
        log_action_end_msg $?
    fi
    log_action_begin_msg "Deleting ALL firewall chains [Warning: ACCEPTING ALL PORT SERVICES!]"
    if $IPTABLES -X ; then
        $IPTABLES -P INPUT ACCEPT
        $IPTABLES -P FORWARD ACCEPT
        $IPTABLES -P OUTPUT ACCEPT
        log_action_end_msg $?
    else
        log_action_end_msg $?
    fi
    ;;

save)
    log_action_begin_msg "Saving current firewall configuration"
    if $IPTABLES_SAVE > $IPTABLES_CONFIG ; then
        log_action_end_msg $?
    else
        log_action_end_msg $?
    fi
    ;;

force-reload|restart)
    log_action_begin_msg "Reloading firewall configuration [Warning: POTENTIAL NETWORK INSECURITY DURING RELOAD]"
    $IPTABLES -F
    $IPTABLES -X
    if $IPTABLES_RESTORE < $IPTABLES_CONFIG ; then
        log_action_end_msg $?
    else
        log_action_end_msg $?
    fi
    ;;

*)
    echo "Usage: /etc/init.d/iptables {start|stop|save|restart|force-reload}"
    exit 1
    ;;
esac

exit 0