# 默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释 deb https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch main contrib non-free # deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch main contrib non-free deb https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch-updates main contrib non-free # deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch-updates main contrib non-free deb https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch-backports main contrib non-free # deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ stretch-backports main contrib non-free deb https://mirrors.tuna.tsinghua.edu.cn/debian-security stretch/updates main contrib non-free # deb-src https://mirrors.tuna.tsinghua.edu.cn/debian-security stretch/updates main contrib non-free
buster 版本的源信息如下
1 2 3 4 5 6 7 8 9
# 默认注释了源码镜像以提高 apt update 速度，如有需要可自行取消注释 deb https://mirrors.tuna.tsinghua.edu.cn/debian/ buster main contrib non-free # deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ buster main contrib non-free deb https://mirrors.tuna.tsinghua.edu.cn/debian/ buster-updates main contrib non-free # deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ buster-updates main contrib non-free deb https://mirrors.tuna.tsinghua.edu.cn/debian/ buster-backports main contrib non-free # deb-src https://mirrors.tuna.tsinghua.edu.cn/debian/ buster-backports main contrib non-free deb https://mirrors.tuna.tsinghua.edu.cn/debian-security buster/updates main contrib non-free # deb-src https://mirrors.tuna.tsinghua.edu.cn/debian-security buster/updates main contrib non-free
# CentOS-Base.repo # # The mirror system uses the connecting IP address of the client and the # update status of each mirror to pick mirrors that are updated to and # geographically close to the client. You should use this for CentOS updates # unless you are manually picking other mirrors. # # If the mirrorlist= does not work for you, as a fall back you can try the # remarked out baseurl= line instead. # #
[base] name=CentOS-$releasever - Base baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/$releasever/os/$basearch/ #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
#additional packages that may be useful [extras] name=CentOS-$releasever - Extras baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/$releasever/extras/$basearch/ #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
#additional packages that extend functionality of existing packages [centosplus] name=CentOS-$releasever - Plus baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/$releasever/centosplus/$basearch/ #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus gpgcheck=1 enabled=0 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
配置免密登录
场景：A 主机实现免密登录 B 主机
A 主机生成公私钥对 ssh-keygen；
将生成的公钥传输给 B 机器 scp /root/.ssh/id_rsp.pub remoteUser@remoteIp:remoteFolder；
登录 B 机器，将 A 机器的公钥追加到 B 主机用户目录下的 .ssh/authorized_keys 文件，执行 cat id_rsa.pub >> .ssh/.ssh/authorized_keys 命令即可。若没有authorized_keys文件，则需要创建，且其权限要为 600。
查看系统负载
top：重点关注 CPU、内存的使用率，以及 average（平均负载，三个值分别是 CPU 最近 1 分钟、5 分钟、15 分钟的平均负载）
vmstat：
Linux 子系统
在 Windows 10 中使用 Linux 子系统时，经常会需要用到 root 账号，初始情况下，该账号时没有设定密码的，需要设定之后才能正常使用。