Summary of common high-risk commands in Linux

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1 Overview

This article mainly introduces the summary of high-risk commands related to Linux. Command filtering can be performed after JumpServer manages Linux assets.
For some high-risk commands, in the daily management process, it cannot be disabled "one size fits all". You can set related commands to block through JumpServer or set up an auditor to review commands.

1.1 Common high-risk commands

Order

Function

rm

Quanpin remove, its function is to delete one or more files or directories.

is rm

Quanpin remove empty directories, the function is to delete empty directories.

chattr

Change the extended attributes of a file.

are

Switch user identities.

visado

Exclusive command for editing the /etc/sudoers file.

sudo

Execute the commands allowed in the sudoers file as another user (default root user)

shutdown/halt

shutdown

poweroff

Turn off the power.

init 0

switch runlevel, shutdown

reboot

reboot

init 6

reboot

1.2 Disk and file system management commands

Order

Function

mount

Mount the file system

unmount

unmount file system

fdisk

Disk partition command, suitable for disk partitions below 2TB

parted

Disk partition command, no disk size limit

mkfs

Formatting and creating a Linux file system

mkswap

Create a Linux swap partition

swapon

boot swap partition

swapoff

turn off the swap partition

1.3 System user related commands

Order

Function

useradd/adduser

Add user

usermod

Modify the user attributes that already exist in the system

userdel

delete users

passwd

Modify User Password

groupadd

add user group

groupdel

delete user group

change

Modifying the Expiration Period of a User Password

1.4 NIC-related commands

Order

Function

ifup

Start the network card

ifdown

turn off network card

for numt

Modify network related information

vi /etc/sysconfig/network-scripts/ifcfg-*

Modify network related information

1.5 System permissions and user authorization related commands

Order

Function

chmod

Change the permissions of a file or directory

chown

Change the owner and group of a file or directory

chgrp

Change file user group

1.6 Built-in commands are other

Order

Function

alias

Set system alias

you cry

cancel system alias

history

View the history of command execution

export

Set or display environment variables

unset

delete variable or function

kill

terminate process

killall/pkill

Terminate a process by process name

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Origin blog.csdn.net/qq_43174065/article/details/128814704