centos常用漏洞升级修复命令

yum update kernel

yum update kernel-devel

yum update kernel-firmware

yum update kernel-headers

yum update nss-util

yum update nss

yum update nss-sysinit

yum update nss-tools

yum update vim-minimal

yum update openssh

yum update openssh-clients

yum update openssh-server

yum update python

yum update python-libs

升级系统内核：yum -y upgrade

升级所有包，改变软件设置和系统设置,系统版本内核都升级：yum -y update

升级所有包，不改变软件设置和系统设置，系统版本升级，内核不改变:yum -y upgrade