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Linux 命令在网络安全场景中的核心应用

  • 2026-01-23 00:14:41
Linux 命令在网络安全场景中的核心应用

Linux 命令在网络安全场景中的核心应用

Linux 是服务器(Web、数据库等)的主流操作系统,其命令行工具是网络安全运维、入侵检测、应急响应的必备工具。以下是 50 个 Linux 常用命令在网络安全中的具体应用:
一、可疑文件排查与安全审计
ls:列出目录文件→检查目录下的隐藏后门、未授权新增文件,是日常安全审计的基础操作
mkdir:创建目录→创建权限受控的目录(如存放安全日志),避免敏感文件泄露
rmdir:删除空目录→清理冗余目录,减少恶意文件的隐藏载体
......
二、恶意进程与系统资源监控
top:显示资源占用→识别异常进程(如挖矿、木马)的资源滥用行为
ps:显示进程信息→列出所有进程,匹配陌生进程名、异常 PID,排查恶意进程
kill:关闭进程→终止后门、勒索病毒等恶意进程,临时阻断攻击
uname:显示系统信息→确认系统版本,排查对应版本的已知安全漏洞
......
三、网络攻击排查与远程安全
ping:测试网络连接→检测目标主机连通性,辅助判断 DDoS 攻击(高延迟、丢包)
ifconfig:显示网络接口→检查网卡是否被非法配置(陌生 IP、混杂模式),排查内网嗅探
.......
四、权限管控与安全加固
apt-get:软件包管理→及时更新软件,修复已知安全漏洞
dpkg:Debian 包管理→验证软件包完整性,排查恶意篡改包
......
五、文件系统安全与溯源
df:显示磁盘使用→检查磁盘是否被恶意文件(勒索加密文件)占满
du:显示目录占用→定位/tmp等目录的异常占用,快速清理风险
......
六、日志审计与攻击分析
cat:查看文件→查看/var/log/auth.log等安全日志,溯源未授权访问
less:交互显示→分页查看大日志,定位攻击相关条目
head:显示前几行→查看日志最新条目,发现正在发生的攻击
......

如果本篇内容对你有所帮助的话,那么相信我的其他内容也会给你带来收货~

#Linux常用命令大全
#网络安全知识 #网络安全 #黑客

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广西,2026年1月5日 15:24,

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  1. CONNECT:[ UseTime:0.000474s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000633s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.003986s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000305s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000478s ]
  6. SELECT * FROM `set` [ RunTime:0.000190s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000504s ]
  8. SELECT * FROM `article` WHERE `id` = 460071 LIMIT 1 [ RunTime:0.000362s ]
  9. UPDATE `article` SET `lasttime` = 1770587022 WHERE `id` = 460071 [ RunTime:0.009823s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 67 LIMIT 1 [ RunTime:0.000240s ]
  11. SELECT * FROM `article` WHERE `id` < 460071 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000425s ]
  12. SELECT * FROM `article` WHERE `id` > 460071 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000400s ]
  13. SELECT * FROM `article` WHERE `id` < 460071 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000907s ]
  14. SELECT * FROM `article` WHERE `id` < 460071 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000720s ]
  15. SELECT * FROM `article` WHERE `id` < 460071 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.007882s ]
0.108697s