如何修复 iptables 错误消息“无法初始化表‘过滤器’”？

Question

当我尝试在我的 Rackspace 云服务器之一上使用 iptables 命令时，出现以下错误。

在尝试应用 iptables 规则时iptables-apply -t 120 /etc/iptables.rules，iptables-restore < /etc/iptables.rules我遇到了下一个错误：

FATAL: Could not load /lib/modules/2.6.32.4-rscloud/modules.dep: No such file or directory
iptables-restore v1.4.4: iptables-restore: unable to initialize table 'filter'

Error occurred at line: 2
Try `iptables-restore -h' or 'iptables-restore --help' for more information.

我该如何解决？

编辑 1：

用户名 -r :

2.6.32.4-rscloud

modprobe /lib/modules/$(uname -r)/kernel/net/ipv4/netfilter/iptable_filter.ko :

FATAL: Could not load /lib/modules/2.6.32.4-rscloud/modules.dep: No such file or directory

ls /lib/modules/$(uname -r)/kernel/net/ipv4/netfilter/ :

ls: cannot access /lib/modules/2.6.32.4-rscloud/kernel/net/ipv4/netfilter/: No such file or directory

编辑 2：

apt-cache 搜索 linux-image- * :

alsa-base - ALSA driver configuration files
linux-image-2.6.31-14-generic - Linux kernel image for version 2.6.31 on x86/x86_64
linux-image-2.6.31-14-server - Linux kernel image for version 2.6.31 on x86_64
linux-image-2.6.31-14-virtual - Linux kernel image for version 2.6.31 on x86/x86_64
linux-image-2.6.31-302-ec2 - Linux kernel image for version 2.6.31 on x86/x86_64
linux-image-2.6.31-9-rt - Linux kernel image for version 2.6.31 on Ingo Molnar's full real time preemption patch
linux-image-rt - Rt Linux kernel image
rt2400-source - source for rt2400 wireless network driver
rt2500-source - source for rt2500 wireless network driver
rt2570-source - source for rt2570 wireless network driver
linux-image - Generic Linux kernel image.
linux-image-2.6.31-15-generic - Linux kernel image for version 2.6.31 on x86/x86_64
linux-image-2.6.31-15-server - Linux kernel image for version 2.6.31 on x86_64
linux-image-2.6.31-15-virtual - Linux kernel image for version 2.6.31 on x86/x86_64
linux-image-2.6.31-16-generic - Linux kernel image for version 2.6.31 on x86/x86_64
linux-image-2.6.31-16-server - Linux kernel image for version 2.6.31 on x86_64
linux-image-2.6.31-16-virtual - Linux kernel image for version 2.6.31 on x86/x86_64
linux-image-2.6.31-17-generic - Linux kernel image for version 2.6.31 on x86/x86_64
linux-image-2.6.31-17-server - Linux kernel image for version 2.6.31 on x86_64
linux-image-2.6.31-17-virtual - Linux kernel image for version 2.6.31 on x86/x86_64
linux-image-2.6.31-19-generic - Linux kernel image for version 2.6.31 on x86/x86_64
linux-image-2.6.31-19-server - Linux kernel image for version 2.6.31 on x86_64
linux-image-2.6.31-19-virtual - Linux kernel image for version 2.6.31 on x86/x86_64
linux-image-2.6.31-20-generic - Linux kernel image for version 2.6.31 on x86/x86_64
linux-image-2.6.31-20-server - Linux kernel image for version 2.6.31 on x86_64
linux-image-2.6.31-20-virtual - Linux kernel image for version 2.6.31 on x86/x86_64
linux-image-2.6.31-21-generic - Linux kernel image for version 2.6.31 on x86/x86_64
linux-image-2.6.31-21-server - Linux kernel image for version 2.6.31 on x86_64
linux-image-2.6.31-21-virtual - Linux kernel image for version 2.6.31 on x86/x86_64
linux-image-2.6.31-304-ec2 - Linux kernel image for version 2.6.31 on x86/x86_64
linux-image-2.6.31-305-ec2 - Linux kernel image for version 2.6.31 on x86/x86_64
linux-image-2.6.31-306-ec2 - Linux kernel image for version 2.6.31 on x86/x86_64
linux-image-ec2 - Linux kernel image for ec2 machines
linux-image-generic - Generic Linux kernel image
linux-image-server - Linux kernel image on Server Equipment.
linux-image-virtual - Linux kernel image for virtual machines
linux-image-2.6.31-22-generic - Linux kernel image for version 2.6.31 on x86/x86_64
linux-image-2.6.31-22-server - Linux kernel image for version 2.6.31 on x86_64
linux-image-2.6.31-22-virtual - Linux kernel image for version 2.6.31 on x86/x86_64
linux-image-2.6.31-307-ec2 - Linux kernel image for version 2.6.31 on x86/x86_64

Answer 1

您需要加载内核模块以启用过滤器表。以 root 身份运行下一个命令：

modprobe /lib/modules/$(uname -r)/kernel/net/ipv4/netfilter/iptable_filter.ko

（uname -r给出当前内核版本）

有关 iptables 的可用模块列表，请列出包含 iptables 模块的目录：

ls /lib/modules/$(uname -r)/kernel/net/ipv4/netfilter/

获取所有模块的信息：

modinfo /lib/modules/$(uname -r)/kernel/net/ipv4/netfilter/*.ko

Answer 2

事实证明，这只是一个缺少的sudo！

sudo iptables-restore < /etc/iptables.rules

代替

iptables-restore < /etc/iptables.rules