Suse Linux的防火墙相关

最新推荐文章于 2025-08-23 01:21:08 发布

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#suse #linux #network #防火墙

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本文档提供了一个详细的步骤来指导如何配置iptables防火墙。首先设置常规的防火墙规则，如端口转发和NAT设置等；其次保存活动规则集，并创建一个默认接受所有连接的备用规则集。通过debconf设置运行级别来控制脚本的执行。还介绍了如何保存额外的规则集并按名称恢复。

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How do I get started?
# A: (Did I mention "do not use it" already? Oh well.)
#    1. Setup your normal iptables rules -- firewalling, port forwarding
#       NAT, etc. When everything is configured the way you like, run:
#
#           /etc/init.d/iptables save active
#
#    2. Setup your your inactive firewall rules -- this can be something
#       like clear all rules and set all policy defaults to accept (which
#       can be done with /etc/init.d/iptables clear). When that is ready,
#       save the inactive ruleset:
#
#           /etc/init.d/iptables save inactive
#
#    3. Controlling the script itself is done through runlevels configured
#       with debconf for package installation. Run "dpkg-reconfigure iptables"
#       to enable or disable after installation.
#
# Q: Is that all?
# A: Mostly. You can save additional rulesets and restore them by name. As
#    an example:
#
#       /etc/init.d/iptables save midnight
#       /etc/init.d/iptables load midnight
#
#
#    Autosave only works with start followed by stop.
#
#    Also, take great care with the halt option. It's almost as good as
#    pulling the network cable, except it disrupts localhost too.
#
#    Also, create the /var/lib/iptables and /var/lib/ip6tables dirs
#    as necessary.