转：db2 iptables相关用法（2）
Centos 6 iptables 配置
Ben
2011/12/24
[root@localhost ben.liu]# service iptables status
Table: filter
Chain INPUT (policy ACCEPT)
num target prot opt source destination
1 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:2256
2 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
3 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0
4 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
5 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:80
6 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22
7 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain FORWARD (policy ACCEPT)
num target prot opt source destination
1 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain OUTPUT (policy ACCEPT)
num target prot opt source destination
-----------
插入1条记录
[root@localhost ben.liu]# iptables -I INPUT -j ACCEPT -s 172.16.0.0/16 -p tcp --dport 443 -m state --state NEW
[root@localhost ben.liu]# service iptables status
Table: filter
Chain INPUT (policy ACCEPT)
num target prot opt source destination
1 ACCEPT tcp -- 172.16.0.0/16 0.0.0.0/0 tcp dpt:443 state NEW
2 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:2256
3 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
4 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0
5 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
6 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:80
7 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22
8 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain FORWARD (policy ACCEPT)
num target prot opt source destination
1 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain OUTPUT (policy ACCEPT)
num target prot opt source destination
-
[root@localhost ben.liu]# iptables-save
# Generated by iptables-save v1.4.7 on Sat Dec 24 16:50:09 2011
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [201:20052]
-A INPUT -s 172.16.0.0/16 -p tcp -m tcp --dport 443 -m state --state NEW -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 2256 -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT
# Completed on Sat Dec 24 16:50:09 2011
--
修改1条记录：比如第7条 state NEW tcp dpt:22
[root@localhost ben.liu]# iptables -R INPUT 7 -s 172.16.0.0/16 -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
[root@localhost ben.liu]# iptables status
Bad argument `status'
Try `iptables -h' or 'iptables --help' for more information.
[root@localhost ben.liu]# service iptables status
Table: filter
Chain INPUT (policy ACCEPT)
num target prot opt source destination
1 ACCEPT tcp -- 172.16.0.0/16 0.0.0.0/0 tcp dpt:443 state NEW
2 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:2256
3 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
4 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0
5 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
6 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:80
7 ACCEPT tcp -- 172.16.0.0/16 0.0.0.0/0 state NEW tcp dpt:22
8 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain FORWARD (policy ACCEPT)
num target prot opt source destination
1 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain OUTPUT (policy ACCEPT)
num target prot opt source destination
--
删除1条记录，比如：第7条
[root@localhost ben.liu]# iptables -D INPUT 7
[root@localhost ben.liu]# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
ACCEPT tcp -- 172.16.0.0/16 anywhere tcp dpt:https state NEW
ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:pcc-mfp
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
ACCEPT icmp -- anywhere anywhere
ACCEPT all -- anywhere anywhere
ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:http
REJECT all -- anywhere anywhere reject-with icmp-host-prohibited
Chain FORWARD (policy ACCEPT)
target prot opt source destination
REJECT all -- anywhere anywhere reject-with icmp-host-prohibited
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
[root@localhost ben.liu]# iptables -L -n
Chain INPUT (policy ACCEPT)
target prot opt source destination
ACCEPT tcp -- 172.16.0.0/16 0.0.0.0/0 tcp dpt:443 state NEW
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:2256
ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0
ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:80
REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain FORWARD (policy ACCEPT)
target prot opt source destination
REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
[root@localhost ben.liu]# service iptables status
Table: filter
Chain INPUT (policy ACCEPT)
num target prot opt source destination
1 ACCEPT tcp -- 172.16.0.0/16 0.0.0.0/0 tcp dpt:443 state NEW
2 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:2256
3 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
4 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0
5 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
6 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:80
7 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain FORWARD (policy ACCEPT)
num target prot opt source destination
1 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain OUTPUT (policy ACCEPT)
num target prot opt source destination
---
清空所有INPUT 记录
[root@localhost ben.liu]# iptables-save > /etc/sysconfig/iptables.bak
[root@localhost ben.liu]# iptables -F INPUT
[root@localhost ben.liu]# service iptables status
Table: filter
Chain INPUT (policy ACCEPT)
num target prot opt source destination
Chain FORWARD (policy ACCEPT)
num target prot opt source destination
1 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain OUTPUT (policy ACCEPT)
num target prot opt source destination
[root@localhost ben.liu]# iptables-save > /etc/sysconfig/iptables.bak
[root@localhost ben.liu]# iptables -F INPUT
[root@localhost ben.liu]# service iptables status
Table: filter
Chain INPUT (policy ACCEPT)
num target prot opt source destination
Chain FORWARD (policy ACCEPT)
num target prot opt source destination
1 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain OUTPUT (policy ACCEPT)
num target prot opt source destination
恢复以前保存的记录：
[root@localhost ben.liu]# iptables-restore /etc/sysconfig/iptables.bak
[root@localhost ben.liu]# service iptables status
Table: filter
Chain INPUT (policy ACCEPT)
num target prot opt source destination
1 ACCEPT tcp -- 172.16.0.0/16 0.0.0.0/0 tcp dpt:443 state NEW
2 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:2256
3 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
4 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0
5 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
6 ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:80
7 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain FORWARD (policy ACCEPT)
num target prot opt source destination
1 REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited
Chain OUTPUT (policy ACCEPT)
num target prot opt source destination
[root@localhost ben.liu]# iptables-save
# Generated by iptables-save v1.4.7 on Sat Dec 24 17:24:57 2011
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [44:5152]
-A INPUT -s 172.16.0.0/16 -p tcp -m tcp --dport 443 -m state --state NEW -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 2256 -j ACCEPT
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT
# Completed on Sat Dec 24 17:24:57 2011
----------
查看iptables 启动的规则文件：
[root@localhost ben.liu]# cat /etc/sysconfig/iptables
# Firewall configuration written by system-config-firewall
# Manual customization of this file is not recommended.
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
-A INPUT -p icmp -j ACCEPT
-A INPUT -i lo -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT
-A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT
-A INPUT -j REJECT --reject-with icmp-host-prohibited
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
COMMIT
---
关闭/ 禁止、允许随系统启动/启动/重启/ iptables服务
[root@localhost ben.liu]# service iptables stop
iptables: Flushing firewall rules: [ OK ]
iptables: Setting chains to policy ACCEPT: filter [ OK ]
iptables: Unloading modules: [ OK ]
[root@localhost ben.liu]# chkconfig --level 35 iptables off
[root@localhost ben.liu]# chkconfig --level 35 iptables on
[root@localhost ben.liu]# service iptables start
iptables: Applying firewall rules: [ OK ]
[root@localhost ben.liu]# service iptables restart
iptables: Flushing firewall rules: [ OK ]
iptables: Setting chains to policy ACCEPT: filter [ OK ]
iptables: Unloading modules: [ OK ]
iptables: Applying firewall rules: [ OK ]
转：db2 iptables相关用法（2）的更多相关文章
- 转：db2 iptables相关用法（1）
如果你的IPTABLES基础知识还不了解,建议先去看看. 开始配置 我们来配置一个filter表的防火墙. (1)查看本机关于IPTABLES的设置情况 [root@tp ~]# iptables - ...
- linux中iptables的用法
iptables基本操作笔记 一.基本操作 #启动防火墙 service iptables start #停止防火墙 service iptables stop #重启防火墙 service ipta ...
- slf4j log4j logback关系详解和相关用法
slf4j log4j logback关系详解和相关用法 写java也有一段时间了,一直都有用slf4j log4j输出日志的习惯.但是始终都是抱着"拿来主义"的态度,复制粘贴下配 ...
- $.ajax等相关用法
下面是jquery一些方法的相关用法: $.ajax: $.ajax({ type: "GET", url: "url", data: {username:$( ...
- oradmin相关用法
[转]oradmin相关用法 创建例程: -NEW -SID sid | -SRVC 服务 [-INTPWD 口令] [-MAXUSERS 数量] [-STARTMODE a|m] [-PFILE 文 ...
- #ifdef预编译相关用法
#ifdef预编译相关用法主要有:(1)#ifdef XXX executing the corresponding xxx code #endif(2)#ifdef XXX executing th ...
- Java中Date各种相关用法
Java中Date各种相关用法(一) 1.计算某一月份的最大天数 Java代码 Calendar time=Calendar.getInstance(); time.clear(); time.set ...
- Js相关用法个人总结
Js相关用法个人总结 js中将数组元素添加到对象中var obj = {}; var pushArr = [11,22,33,44,55,66]; for(var i=0;i<pushArr. ...
- Css相关用法个人总结
Css相关用法个人总结
随机推荐
- C/S端开发问题汇总
0.先推荐几款工具,连接远程客户端DameWare Mini Remote Control,搜索本地文件Everything,以及sysinternals的系列工具: FileMon-监视所有文件修改 ...
- [USACO精选] 第一章 数值计算
好不容易坑来了传说中的USACO精选,近100题我要是能做完就哈哈哈哈了…继今天学并查集连番受挫之后,决定写一写基础题. #0 负二进制 2014-01-10 其实是想到就会做,不想到就不会做的题,数 ...
- 分布式一致性原理—BASE
定义 BASE是BasicallyAvailable(基本可用).Soft state(软状态)和Eventually consistent(最终一致性)三个短语的简写,是由来自eBay的架构师Dan ...
- JSON.parse()和eval()区别
JSON.parse()只会将标准的Json字符串(key和value都由双引号引起来,最外面用单引号括住)转为JSON对象. eval()在转换字符串的时候是比较松的,即使不是标准的Json字符串也 ...
- Vm下 linux与windowsxp文件共享的方法
我的PC Operating System Host是Windows XP,Guest是Linux,virtualPC是VMware workstation.方法介绍大全请参见:Windows与Vmw ...
- 给伪类设置z-index= -1;
.column{ position: relative; float: left; padding: 30px 0; width: 25%; z-index: 0; background-color: ...
- Cocoa Drawing
Graphics Contexts Graphics contexts are a fundamental part of the drawing infrastructure in Cocoa ap ...
- 知道创宇研发技能表v2.2
知道创宇研发技能表v2.2 2014/3/9 发布 by @知道创宇(www.knownsec.com) @余弦 & 行之 知道创宇是国内Geek十足且普遍被认为特别有前途的互联网安全公司, ...
- catch的执行与try的匹配
这里有一段代码: public class EmbededFinally { public static void main(String args[]) { int result; try { Sy ...
- hdu 2075
PS:水得不能再水..刚开始还以为是大数..要用到快速幂...谁知道想太多...就普通int型.. 代码: #include "stdio.h" int main(){ int a ...