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本文深入探讨了Linux操作系统下安全防护软件的配置文件，详细解析了其在服务器防护中的关键作用。通过实践操作，指导用户如何正确配置安全防护软件，以增强Linux系统的安全性。

本文目录导读：

1. Linux系统安全防护软件概述
2. Linux系统安全防护软件配置文件详解

在当今信息化时代，网络安全问题日益突出，尤其是对于广大企业用户来说，保障系统安全显得尤为重要，Linux系统作为一种广泛应用的操作系统，其安全性一直以来都是用户关注的焦点，本文将详细介绍Linux系统下安全防护软件的配置文件，以及如何通过配置文件来加强系统安全。

Linux系统安全防护软件概述

Linux系统安全防护软件主要包括防火墙、入侵检测系统、恶意代码防护、安全审计等，这些软件通过配置文件来实现对系统安全的防护，下面简要介绍几种常见的安全防护软件：

1、防火墙：用于控制进出系统的网络流量，防止恶意攻击。

2、入侵检测系统（IDS）：实时监测系统行为，发现并报警异常行为。

3、恶意代码防护：检测并清除系统中的恶意代码，防止病毒感染。

4、安全审计：记录系统中的重要操作，便于追踪和分析安全事件。

Linux系统安全防护软件配置文件详解

1、防火墙配置文件

Linux系统中常见的防火墙软件有iptables和firewalld，下面以iptables为例，介绍防火墙配置文件。

（1）iptables配置文件位置：/etc/sysconfig/iptables

（2）配置文件内容：

*nat
:PREROUTING ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
COMMIT
*mangle
:PREROUTING ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
COMMIT
*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 22 -j ACCEPT
-A INPUT -j DROP
COMMIT

（3）配置文件说明：

- *nat、*mangle、*filter：分别表示nat、mangle和filter三个表。

- :PREROUTING、:POSTROUTING、:OUTPUT：分别表示预处理、后处理和输出链。

- COMMiT：提交配置。

2、入侵检测系统配置文件

Linux系统中常见的入侵检测系统有Snort和Suricata，下面以Snort为例，介绍入侵检测系统配置文件。

（1）Snort配置文件位置：/etc/snort/snort.conf

（2）配置文件内容：

配置变量
var RULE_PATH /etc/snort/rules
var SO_RULE_PATH /etc/snort/so_rules
var PREPROC_RULE_PATH /etc/snort/preproc_rules
var RULEengaged 1
var WHITE_LIST_PATH /etc/snort/white_list
分类
config classification: suspicious 1, Τhreat 2, Exploit 3
规则包含
include $RULE_PATH/basic_rules/*.rules
include $RULE_PATH/ids_rules/*.rules
include $RULE_PATH/dns_rules/*.rules
include $RULE_PATH/smtp_rules/*.rules
include $RULE_PATH/http_rules/*.rules
include $RULE_PATH/ftp_rules/*.rules
include $RULE_PATH/telnet_rules/*.rules
include $RULE_PATH/misc_rules/*.rules
输出插件
output database: log, mysql, user=snort password=snortpass dbname=snort host=localhost
预处理器
preprocessor sf_engine: policy-map policy_map, detection-map detection_map
preprocessor http_inspect: iis-methods, no-alerts
preprocessor smtp_inspect: no-alerts
preprocessor ftpInspect: no-alerts
preprocessor dns_inspect: no-alerts
preprocessor ssh_inspect: no-alerts
preprocessor imapInspect: no-alerts
preprocessor popInspect: no-alerts
preprocessor sipInspect: no-alerts
preprocessor modbusInspect: no-alerts
preprocessor mmsInspect: no-alerts
preprocessor smtp2relay: no-alerts
preprocessor dce2 inspected
preprocessor oracle inspection
preprocessor adns_inspect: no-alerts
preprocessor snortd: no-alerts
preprocessor http2_client: no-alerts
preprocessor http2_server: no-alerts
preprocessor http2_inspect: no-alerts
preprocessor http3_client: no-alerts
preprocessor http3_server: no-alerts
preprocessor http3_inspect: no-alerts
preprocessor http4_client: no-alerts
preprocessor http4_server: no-alerts
preprocessor http4_inspect: no-alerts
preprocessor http5_client: no-alerts
preprocessor http5_server: no-alerts
preprocessor http5_inspect: no-alerts
preprocessor http6_client: no-alerts
preprocessor http6_server: no-alerts
preprocessor http6_inspect: no-alerts
preprocessor http7_client: no-alerts
preprocessor http7_server: no-alerts
preprocessor http7_inspect: no-alerts
preprocessor http8_client: no-alerts
preprocessor http8_server: no-alerts
preprocessor http8_inspect: no-alerts
preprocessor http9_client: no-alerts
preprocessor http9_server: no-alerts
preprocessor http9_inspect: no-alerts
preprocessor http10_client: no-alerts
preprocessor http10_server: no-alerts
preprocessor http10_inspect: no-alerts
preprocessor http11_client: no-alerts
preprocessor http11_server: no-alerts
preprocessor http11_inspect: no-alerts
preprocessor http12_client: no-alerts
preprocessor http12_server: no-alerts
preprocessor http12_inspect: no-alerts
preprocessor http13_client: no-alerts
preprocessor http13_server: no-alerts
preprocessor http13_inspect: no-alerts
preprocessor http14_client: no-alerts
preprocessor http14_server: no-alerts
preprocessor http14_inspect: no-alerts
preprocessor http15_client: no-alerts
preprocessor http15_server: no-alerts
preprocessor http15_inspect: no-alerts
preprocessor http16_client: no-alerts
preprocessor http16_server: no-alerts
preprocessor http16_inspect: no-alerts
preprocessor http17_client: no-alerts
preprocessor http17_server: no-alerts
preprocessor http17_inspect: no-alerts
preprocessor http18_client: no-alerts
preprocessor http18_server: no-alerts
preprocessor http18_inspect: no-alerts
preprocessor http19_client: no-alerts
preprocessor http19_server: no-alerts
preprocessor http19_inspect: no-alerts
preprocessor http20_client: no-alerts
preprocessor http20_server: no-alerts
preprocessor http20_inspect: no-alerts
preprocessor http21_client: no-alerts
preprocessor http21_server: no-alerts
preprocessor http21_inspect: no-alerts
preprocessor http22_client: no-alerts
preprocessor http22_server: no-alerts
preprocessor http22_inspect: no-alerts
preprocessor http23_client: no-alerts
preprocessor http23_server: no-alerts
preprocessor http23_inspect: no-alerts
preprocessor http24_client: no-alerts
preprocessor http24_server: no-alerts
preprocessor http24_inspect: no-alerts
preprocessor http25_client: no-alerts
preprocessor http25_server: no-alerts
preprocessor http25_inspect: no-alerts
preprocessor http26_client: no-alerts
preprocessor http26_server: no-alerts
preprocessor http26_inspect: no-alerts
preprocessor http27_client: no-alerts
preprocessor http27_server: no-alerts
preprocessor http27_inspect: no-alerts
preprocessor http28_client: no-alerts
preprocessor http28_server: no-alerts
preprocessor http28_inspect: no-alerts
preprocessor http29_client: no-alerts
preprocessor http29_server: no-alerts
preprocessor http29_inspect: no-alerts
preprocessor http30_client: no-alerts
preprocessor http30_server: no-alerts
preprocessor http30_inspect: no-alerts
preprocessor http31_client: no-alerts
preprocessor http31_server: no-alerts
preprocessor http31_inspect: no-alerts
preprocessor http32_client: no-alerts
preprocessor http32_server: no-alerts
preprocessor http32_inspect: no-alerts
preprocessor http33_client: no-alerts
preprocessor http33_server: no-alerts
preprocessor http33_inspect: no-alerts
preprocessor http34_client: no-alerts
preprocessor http34_server: no-alerts
preprocessor http34_inspect: no-alerts
preprocessor http35_client: no-alerts
preprocessor http35_server: no-alerts
preprocessor http35_inspect: no-alerts
preprocessor http36_client: no-alerts
preprocessor http36_server: no-alerts
preprocessor http36_inspect: no-alerts

本文标签属性：

Linux安全防护：linux系统安全

配置文件详解：centos7网卡配置文件详解

Linux系统 安全防护软件配置文件：linux安全防护做哪些