CentOS FAQ

• 最后版本
  • 8.5.2111 - 2021-11-16
  • 7.9-2009 - 2020-11-12
• https://wiki.centos.org/FAQ/CentOS8
• iprinit, iprupdate, iprdump
• tuned
  • https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html-single/performance_tuning_guide/index#chap-Red_Hat_Enterprise_Linux-Performance_Tuning_Guide-Tuned
  • /etc/tuned/tuned-main.conf
  • https://github.com/redhat-performance/tuned
• oddjobd
  • privileged operations for unprivileged processes
  • https://www.unix.com/man-page/centos/8/oddjobd/

CentOS 8 os vs kickstart

• kickstart
  • 不会更新，发布点的仓库状态
• os
  • 包会更新
  • 没有了 update 仓库

使用 alpine 下依赖 musl 的二进制

cd /etc/yum.repos.d/
wget https://copr.fedorainfracloud.org/coprs/ngompa/musl-libc/repo/epel-7/ngompa-musl-libc-epel-7.repo
yum install musl-libc-static

修改网卡名为 eth* 的形式

• Linux : How to rename the network interface in CentOS/RHEL7

nano /etc/default/grub
# 在 GRUB_CMDLINE_LINUX 中添加 net.ifnames=0 biosdevname=0

# 从新生成配置
grub2-mkconfig -o /boot/grub2/grub.cfg

# 如果现在已经配置了网络, 可将 ifcfg-* 从命名为 ifcfg-eth0 的形式, 并修改配置中的 NAME 和 DEVICE