Linux 如何检查 iptables 中每个规则的命中计数？
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How can I check the hit count for each rule in iptables?
提问by apps
I want to know how can I find out which rule was accessed and how many times, from the access list I have created using iptables.
我想知道如何从我使用 iptables 创建的访问列表中找出访问了哪个规则以及访问了多少次。
My firewall has over 1000 input and output rules in iptbales; I want to find how many times each of them were accessed.
我的防火墙在 iptbales 中有超过 1000 条输入和输出规则；我想找出他们每个人被访问的次数。
For example, suppose I have the following rules:
例如，假设我有以下规则：
iptables -A INPUT -i eth0 -p tcp --dport 22 -m state --state NEW,ESTABLISHED -j ACCEPT
iptables -A OUTPUT -o eth0 -p tcp --sport 22 -m state --state ESTABLISHED -j ACCEPT
iptables -A INPUT -i eth0 -p tcp --dport 80 -m state --state NEW,ESTABLISHED -j ACCEPT
iptables -A OUTPUT -o eth0 -p tcp --sport 80 -m state --state ESTABLISHED -j ACCEPT
iptables -A INPUT -i eth0 -p tcp --dport 443 -m state --state NEW,ESTABLISHED -j ACCEPT
iptables -A OUTPUT -o eth0 -p tcp --sport 443 -m state --state ESTABLISHED -j ACCEPT
I want to find out how many times each of the rules 1, 2, 3, 4, 5 and 6 were hit.
我想知道每个规则 1、2、3、4、5 和 6 被击中了多少次。
采纳答案by scai
iptableswill list packet and byte counters if you specify option -vfor verbose, e.g. iptables -vL. Likewise iptables-savewill list all entries including the mentioned counters for each chain, but not for each table entry (on some systems iptables-saverequires option -cto include counters).
iptables如果您-v为verbose指定选项，则将列出数据包和字节计数器，例如iptables -vL. 同样iptables-save将列出所有条目，包括每个链的提到的计数器，但不是每个表条目（在某些系统上iptables-save需要选择-c包括计数器）。
回答by dothebart
You can also use collectds iptables module to aggregate the counters:
您还可以使用 collectds iptables 模块来聚合计数器：
回答by Bob Holden
I use the following to check on my iptables rules:
我使用以下命令检查我的 iptables 规则：
iptables -nvL [INPUT|FORWARD|OUTPUT|myCHAINNAME] --line-numbers | less
The -n speeds up the process by not doing hostname lookups
-n 通过不进行主机名查找来加快进程
The line numbers help with deleting rules:
行号有助于删除规则：
iptables -D [INPUT|FORWARD|OUTPUT|myCHAINNAME] [Rule#]
HTH
HTH
