Debian

vi /etc/systemd/network/xxxx.network

[Match]
MACAddress=9c:6b:00:68:14:6e

[Network]
# IPv4 配置
Address=192.0.2.45/24
Gateway=192.0.2.1
DNS=1.1.1.1

# IPv6 配置
Address=2001:db8:abcd:200:30:abcd:12ef:3456/64
Gateway=2001:db8:abcd::1
DNS=2606:4700:4700::1111

sudo systemctl restart systemd-networkd
sudo systemctl restart systemd-resolved

ip addr show
ip -6 route show
ping6 google.com

vi /etc/network/interfaces

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
allow-hotplug eno2np0
iface eno2np0 inet static
    address 192.0.2.10/24
    gateway 192.0.2.1
    # dns-* options are implemented by the resolvconf package, if installed
    dns-nameservers 1.1.1.1

iface eno2np0 inet6 static
    address 2001:db8:1234::10
    netmask 64
    gateway 2001:db8:1234::1

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
 auto ens3
  iface ens3 inet static
   address 192.168.50.129/24
   gateway 192.168.50.1
   netmask 255.255.255.0
   dns-nameservers 8.8.8.8 8.8.4.4
  iface ens3 inet static
   address 192.168.50.156/24

systemctl restart networking

vi /etc/network/interfaces

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto ens5
iface ens5 inet dhcp
iface ens5 inet6 dhcp

systemctl restart networking

vi /etc/network/interfaces

network:
  version: 2
  renderer: networkd
  ethernets:
    enp1s0f0:
      optional: true
    enp1s0f1:
      optional: true
  bonds:
    bond0:
      interfaces:
        - enp1s0f0
        - enp1s0f1
      parameters:
        mode: 802.3ad
        lacp-rate: fast
        mii-monitor-interval: 100
  bridges:
    vmbr0:
      interfaces:
        - bond0
      parameters:
        stp: false
        forward-delay: 0
      addresses:
        - 2001:db8::1/64
        - 192.0.2.64/24
      routes:
        - to: default
          via: 2001:db8::1
          on-link: true
        - to: default
          via: 192.0.2.1
          on-link: true

netplan apply

# 会给你一个 120 秒确认时间，失败会回滚
netplan try

apt install ufw

# 允许ssh
ufw allow ssh

# 允许iperf3
ufw allow iperf3

# 允许指定端口
ufw allow 1432

# 允许指定端口协议
ufw allow 80/tcp
ufw allow 5555/tcp

# 允许某个 IP 所有端口访问
ufw allow from 203.0.113.5

# 允许指定 IP、端口和协议
ufw allow from 192.168.1.100 to any port 80 proto tcp

## 删除相关规则
ufw delete allow 80/tcp

## 显示现有规则
ufw status numbered

## 删除指定编号规则
ufw delete 2

ufw enable

apt update
apt install nfs-kernel-server -y

mkdir -p /srv/nfs/share
chown nobody:nogroup /srv/nfs/share
chmod 777 /srv/nfs/share

# rw：读写
# async：异步写，提高性能
# insecure：允许客户端使用 非特权端口 (>1024)
# no_subtree_check：禁用子目录检查，减少开销
# no_root_squash：允许 root 用户不被降级

# 允许所有客户端 IP 访问
/srv/nfs/share *(rw,async,insecure,no_subtree_check,no_root_squash)

# 限定某个子网
/srv/nfs/share 192.168.1.0/24(rw,async,insecure,no_subtree_check,no_root_squash)

# 限定多个子网
/srv/nfs/share 192.168.1.0/24(rw,async,no_subtree_check,no_root_squash) 10.0.0.0/16(rw,async,no_subtree_check,no_root_squash)

# 限定单个 IP
/srv/nfs/share 192.168.1.10(rw,async,no_subtree_check,no_root_squash)

# 支持主机名
/srv/nfs/share nfs.digvps.com(rw,async,no_subtree_check,no_root_squash)

exportfs -ra
exportfs -v # 查看启用的共享
systemctl enable nfs-server
systemctl restart nfs-server

apt update
apt install nfs-common -y

mkdir -p /mnt/nfs_share

# vers=4.2：强制使用 NFSv4.2，性能和特性最好
# tcp：使用 TCP 协议
# nconnect=8：并行 8 个 TCP 连接，大幅提高多线程 IO 性能（Linux 内核 ≥ 5.3）
    
mount -o vers=4.2,tcp,nconnect=8 192.168.1.10:/srv/nfs/share /mnt/nfs_share

umount /mnt/nfs_share

192.168.1.10:/srv/nfs/share /mnt/nfs_share nfs vers=4.2,tcp,nconnect=8 0 0

mount -a

sftp root@47.254.16.58

pwd          # 显示远程服务器当前目录  
lpwd         # 显示本地机器当前目录  

ls           # 列出远程目录文件  
lls          # 列出本地目录文件  

cd /var/www  # 切换远程目录  
lcd ./dist   # 切换本地目录  

get file.txt          # 下载远程文件到本地  
get -r dist/          # 递归下载整个目录  

put file.txt          # 上传本地文件到远程  
put -r dist/          # 递归上传整个目录  

mkdir test            # 在远程创建目录  
rmdir test            # 删除远程目录  
rm file.txt           # 删除远程文件  

rename old.txt new.txt  # 重命名远程文件  
chmod 644 file.txt      # 修改远程文件权限

sftp> exit

# 上传单个文件
echo "put ./dist/index.html /var/www/digvps/" | sftp 用户名@服务器IP

# 上传整个目录
echo "put -r ./dist /var/www/digvps/" | sftp 用户名@服务器IP

apt install lrzsz

# 从本地上传文件到服务器
rz

# 从服务器下载文件到本地
sz

Regular expression: rz waiting to receive.\*\*B0100
Action: Run Silent Coprocess
Parameters: /usr/local/bin/iterm2-send-zmodem.sh
Instant: checked

Regular expression: \*\*B00000000000000
Action: Run Silent Coprocess
Parameters: /usr/local/bin/iterm2-recv-zmodem.sh
Instant: checked

dpkg -l | grep systemd-timesyncd

apt update
apt install systemd-timesyncd -y

systemctl unmask systemd-timesyncd
systemctl enable systemd-timesyncd
systemctl start systemd-timesyncd

timedatectl set-ntp true

timedatectl status

nano /etc/systemd/timesyncd.conf

systemctl restart systemd-timesyncd

systemctl restart systemd-timesyncd

journalctl -u systemd-timesyncd -n 20

timedatectl