ubantu环境初始化

查看系统信息

lsb_release -a

配置镜像源

sed -i "s#http://archive.ubuntu.com/ubuntu/#​​​​​​​http://mirrors.aliyun.com/ubuntu/#g" /etc/apt/sources.list

安装vim命令

apt update && apt -y install vim 

配置静态ip地址

vim /etc/netplan/00-installer-config.yaml

# This is the network config written by 'subiquity'
network:
  ethernets:
    ens160:
      dhcp4: false
      addresses:
        - 10.1.60.130/24
      routes:
        - to: default
          via: 10.1.60.254
      nameservers:
        addresses:
          - 114.114.114.114
          - 116.116.116.116
  version: 2

 使网络配置生效

netplan apply

关闭防火墙

systemctl disable --now ufw

同步时间

apt -y install ntpdate
timedatectl set-timezone Asia/Shanghai

优化主机配置

#!/bin/bash
#调整最大进程数限制和文件描述符限制
cat >> /etc/security/limits.conf << EOF
* soft nproc 65535
 
* hard nproc 65535
 
* soft nofile 65535
 
* hard nofile 65535
EOF
#内核参数优化
cat >> /etc/sysctl.conf << EOF
fs.file-max=65535
net.ipv4.ip_local_port_range=1025 65000
net.ipv4.tcp_max_orphans = 32768
net.ipv4.tcp_window_scaling=1
net.ipv4.tcp_max_tw_buckets=8000
net.ipv4.tcp_tw_reuse=1
net.ipv4.tcp_tw_recycle = 1
net.ipv4.tcp_fin_timeout=30
net.ipv4.tcp_retries2=5
net.ipv4.tcp_syn_retries = 2
net.ipv4.tcp_synack_retries = 2 
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_sack=1
net.ipv4.tcp_fack=1
net.ipv4.tcp_timestamps=1
net.ipv4.tcp_keepalive_time=120
net.ipv4.tcp_keepalive_intvl=20
net.ipv4.tcp_keepalive_probes=3 
net.ipv4.tcp_max_syn_backlog= 65535
net.ipv4.tcp_mem  = 262144  524288 786432
net.ipv4.tcp_wmem = 4096    131072  16777216
net.ipv4.tcp_rmem = 4096    131072  16777216
net.core.somaxconn = 65535
net.core.netdev_max_backlog = 65535
net.core.wmem_max = 16777216
net.core.wmem_default = 131072
net.core.rmem_max = 16777216
net.core.rmem_default = 131072
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
vm.overcommit_memory = 0
vm.swappiness = 10
net.ipv4.ip_forward = 1
EOF
#使配置生效
sysctl -p