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add Init debian

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xiaoz 2 years ago
parent
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2029045a44
  1. 100
      init_debian.sh

100
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
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