background picture of the home page

Hi,Friend

linux安全之文件权限

Linux 文件权限是系统安全的核心机制之一,通过控制 "谁能对文件 / 目录执行什么操作",防止未授权访问和误操作。 一、权限的基本构成 Linux 权限基于UGO 模型(User/Group/Others),即权限分别针对三类对象: U(User):文件的所有者(创建者或被指定的用户) G(Gr

thumbnail of the cover of the post

缺省路由小实验

在R1上设置缺省,路由,而在R3和R4上设置静态路由,让12.1.1.0ping的通,23.1.1.0/24网段,24.1.1.0/24 在R1上操作 配置好ip 直接配置缺省路由,即默认路由,ip route-static 0.0.0.0 0.0.0.0 12.1.1.2 最后跟的是接口ip 也可

thumbnail of the cover of the post

静态路由小实验

R1上操作 The device is running! ########## <Huawei>sy Enter system view, return user view with Ctrl+Z. [Huawei]sy R1 [R1]undo in [R1]undo info-center en

thumbnail of the cover of the post

ensp接口ip配置

<Huawei>sy <Huawei>system-view Enter system view, return user view with Ctrl+Z. [Huawei] Aug 10 2025 09:06:34-08:00 Huawei %%01IFPDT/4/IF_STATE(l)[0

thumbnail of the cover of the post

华为简单命令

<Huawei> <Huawei>pwd 查看地址 flash: <Huawei>di <Huawei>dir 查看目录下内容 Directory of flash:/ Idx Attr Size(Byte) Date Time(LMT) FileName

thumbnail of the cover of the post

网工小知识

<AR1>reset saved-configuration 恢复重置, This will delete the configuration in the flash memory. The device configuratio ns will be erased to reconfigure

thumbnail of the cover of the post

acl小实验

在lsw 上操作, change status to down Jul 31 2025 16:32:52-08:00 Huawei %%01PHY/1/PHY(l)[1]: GigabitEthernet0/0/2: change status to up <Huawei> <Huawei>

thumbnail of the cover of the post