From 2029045a44301b511ec31e156e3cab278494b6d1 Mon Sep 17 00:00:00 2001 From: xiaoz Date: Tue, 23 Aug 2022 10:15:31 +0800 Subject: [PATCH] add Init debian --- init_debian.sh | 100 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 100 insertions(+) create mode 100644 init_debian.sh diff --git a/init_debian.sh b/init_debian.sh new file mode 100644 index 0000000..f6c90e5 --- /dev/null +++ b/init_debian.sh @@ -0,0 +1,100 @@ +#!/bin/bash +##### name:debian初始化脚本 ##### +##### author:xiaoz ##### +##### date:2022/08/18 ##### + +#获取SSH端口 +ssh_port=$1 + +#初始化软件 +init_soft(){ + echo '--------------------------------------------------------------'; + echo 'Install curl/wget and firewalld.' + echo '--------------------------------------------------------------'; + #更新软件 + apt-get update + #安装必要软件 + apt-get -y install curl wget + apt-get -y install firewalld + #启动firewalld + systemctl start firewalld && systemctl enable firewalld + #放行常见端口 + firewall-cmd --zone=public --add-port=80/tcp --permanent + firewall-cmd --zone=public --add-port=443/tcp --permanent + firewall-cmd --reload +} + +#初始化SSH配置 +#修改端口和允许root登录 +init_ssh(){ + echo '--------------------------------------------------------------'; + echo 'Modifying SSH port.' + echo '--------------------------------------------------------------'; + #先放行端口 + firewall-cmd --zone=public --add-port=${ssh_port}/tcp --permanent + firewall-cmd --reload + + #修改ssh配置文件 + #修改SSH端口 + echo "Port ${ssh_port}" >> /etc/ssh/sshd_config + #允许root登录 + echo 'PermitRootLogin yes' >> /etc/ssh/sshd_config + + #重启SSH服务 + systemctl restart sshd +} + +#初始化时区 +init_timezone(){ + echo '--------------------------------------------------------------'; + echo 'Setting time zone.' + echo '--------------------------------------------------------------'; + #设置时区为上海 + timedatectl set-timezone Asia/Shanghai + #同步时间 + apt-get install ntpdate + ntp_path=$(which ntpdate) + + #写入定时任务 + echo "${ntp_path} -u pool.ntp.org" >> /var/spool/cron/crontabs/root + #重载定时任务 + /etc/init.d/cron reload +} + +#设置虚拟内存,如果存在虚拟内存,则不设置 +set_swap() { + echo '--------------------------------------------------------------'; + echo 'Setting swap.' + echo '--------------------------------------------------------------'; + curl -s "https://raw.githubusercontent.com/helloxz/shell/master/set_swap.sh" | bash +} + +#开启BBR +enable_bbr(){ + echo '--------------------------------------------------------------'; + echo 'Enabling BBR.' + echo '--------------------------------------------------------------'; + #写入配置文件 + echo "net.core.default_qdisc=fq" >> /etc/sysctl.conf + echo "net.ipv4.tcp_congestion_control=bbr" >> /etc/sysctl.conf + + #使内核参数生效 + sysctl -p +} + +#修改默认的描述符限制 +change_ulimit() { + echo '--------------------------------------------------------------'; + echo 'Modifying ulimit.' + echo '--------------------------------------------------------------'; + echo 'fs.file-max = 65535' >> /etc/sysctl.conf + echo '* soft nofile 65535' >> /etc/security/limits.conf + echo '* hard nofile 65535' >> /etc/security/limits.conf + echo 'ulimit -SHn 65535' >> /etc/profile + + #使内核参数生效 + sysctl -p +} + +#调用函数执行 +init_soft && init_ssh && init_timezone && set_swap && enable_bbr && change_ulimit \ No newline at end of file