ssh脚本
This commit is contained in:
lsy
parent
894b8e3a46
commit
ba7fb89d77
166
shell/code/ssh.sh
Normal file
166
shell/code/ssh.sh
Normal file
@ -0,0 +1,166 @@
|
||||
alter_root_password(){
|
||||
declare password
|
||||
read -p "请输入root密码：" password
|
||||
|
||||
echo "root:$password" |sudo chpasswd
|
||||
sudo sed -i 's/^#\?PermitRootLogin.*/PermitRootLogin yes/g' /etc/ssh/sshd_config
|
||||
sudo sed -i 's/^#\?PasswordAuthentication.*/PasswordAuthentication yes/g' /etc/ssh/sshd_config
|
||||
sudo systemctl restart sshd.service
|
||||
|
||||
echo "修改成功当前root密码为：$password"
|
||||
}
|
||||
|
||||
install_key(){
|
||||
declare key
|
||||
echo "请输入公钥或文件路径："
|
||||
echo "默认：$HOME/.ssh/id_rsa.pub"
|
||||
read -p "回车默认：" key
|
||||
|
||||
if [[ -z $key ]];then
|
||||
key="$HOME/.ssh/id_rsa.pub"
|
||||
fi
|
||||
|
||||
if [[ -f $key ]];then
|
||||
key=$(cat "$key")
|
||||
fi
|
||||
if [[ ! $key =~ ^ssh-(rsa|ecdsa-sha2-nistp[0-9]+|ed25519|dss) ]];then
|
||||
echo "公钥不合法"
|
||||
exit 1
|
||||
fi
|
||||
|
||||
mkdir -p "$HOME/.ssh"
|
||||
echo "$key" > "$HOME/.ssh/authorized_keys"
|
||||
|
||||
chmod 600 "$HOME/.ssh/authorized_keys"
|
||||
chmod 700 "$HOME/.ssh"
|
||||
|
||||
sudo sed -i 's/^#\?PubkeyAuthentication.*/PubkeyAuthentication yes/g' /etc/ssh/sshd_config
|
||||
|
||||
declare pick2
|
||||
echo "是否关闭密码登录："
|
||||
read -p "输入 n 取消关闭：" pick2
|
||||
|
||||
if [[ ! $pick2 =~ [Nn] ]];then
|
||||
sudo sed -i 's/^#\?PasswordAuthentication.*/PasswordAuthentication no/g' /etc/ssh/sshd_config
|
||||
fi
|
||||
|
||||
|
||||
systemctl restart sshd.service
|
||||
|
||||
echo "密钥安装完成"
|
||||
}
|
||||
|
||||
|
||||
add_user(){
|
||||
declare user_name
|
||||
read -p "请输入你想创建的用户名：" user_name
|
||||
|
||||
if id "$user_name" &>/dev/null; then
|
||||
echo "用户 $user_name 已存在。"
|
||||
exit 1
|
||||
fi
|
||||
|
||||
useradd -m -s /bin/bash "$user_name"
|
||||
|
||||
if grep -q "^$user_name " /etc/sudoers;then
|
||||
sudo sed -i "s/^#\?$user_name.*/lsy ALL=(ALL) NOPASSWD: ALL/g" /etc/sudoers
|
||||
else
|
||||
sudo echo "lsy ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers
|
||||
fi
|
||||
|
||||
|
||||
declare pick
|
||||
echo "用户登录方式"
|
||||
echo "y.密码登录"
|
||||
echo "n.使用root用户公钥"
|
||||
read -p "默认y，请输入：" pick
|
||||
if [[ ! $pick =~ [Nn] ]];then
|
||||
declare password
|
||||
read -p "请输入密码：" password
|
||||
echo "$user_name:$password" |sudo chpasswd
|
||||
sudo sed -i 's/^#\?PasswordAuthentication.*/PasswordAuthentication yes/g' /etc/ssh/sshd_config;
|
||||
echo "创建成功"
|
||||
echo "账号：$user_name"
|
||||
echo "密码：$password"
|
||||
else
|
||||
sudo sed -i 's/^#\?PubkeyAuthentication.*/PubkeyAuthentication yes/g' /etc/ssh/sshd_config
|
||||
su "$user_name" -c "mkdir -p '/home/$user_name/.ssh'"
|
||||
sudo cp "/root/.ssh/authorized_keys" "/home/$user_name/.ssh/authorized_keys"
|
||||
sudo chown lsy:lsy "/home/$user_name/.ssh/authorized_keys"
|
||||
su "$user_name" -c "chmod 600 '/home/$user_name/.ssh/authorized_keys'"
|
||||
su "$user_name" -c "chmod 700 '/home/$user_name/.ssh/'"
|
||||
|
||||
echo "创建成功"
|
||||
echo "账号：$user_name"
|
||||
echo "密钥登录"
|
||||
fi
|
||||
|
||||
declare pick2
|
||||
echo "是否关闭root登录"
|
||||
read -p "输入 n 取消关闭：" pick2
|
||||
|
||||
if [[ ! $pick2 =~ [Nn] ]];then
|
||||
sudo sed -i 's/^#\?PermitRootLogin.*/PermitRootLogin no/g' /etc/ssh/sshd_config
|
||||
echo "root用户登录已关闭"
|
||||
fi
|
||||
|
||||
sudo systemctl restart sshd.service
|
||||
}
|
||||
|
||||
|
||||
alter_port() {
|
||||
read -p "请输入需要修改的端口号: " port_number
|
||||
|
||||
if [[ -z $port_number ]];then
|
||||
port_number=22
|
||||
fi
|
||||
|
||||
if ! [[ $port_number =~ ^[0-9]+$ ]] || ! ((port_number > 0 && port_number < 65535)); then
|
||||
echo "端口不合法"
|
||||
return 1
|
||||
fi
|
||||
|
||||
if sudo lsof -i :$port_number -t >/dev/null; then
|
||||
echo "$port_number 端口已被占用"
|
||||
return 1
|
||||
fi
|
||||
|
||||
sudo sed -i "s/^#\?Port.*/Port $port_number/g" /etc/ssh/sshd_config
|
||||
|
||||
sudo systemctl restart sshd.service
|
||||
|
||||
echo "端口已经修改为$port_number，记得防火墙放行"
|
||||
}
|
||||
|
||||
if [ "$(id -u)" != "0" ]; then
|
||||
echo "该脚本必须以root权限运行" 1>&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
while true
|
||||
do
|
||||
echo "1.修改root密码"
|
||||
echo "2.安装公钥"
|
||||
echo "3.创建一个sudo用户"
|
||||
echo "4.修改ssh端口"
|
||||
read -p "请输入：" pick
|
||||
case $pick in
|
||||
1)
|
||||
alter_root_password
|
||||
;;
|
||||
2)
|
||||
install_key
|
||||
;;
|
||||
3)
|
||||
add_user
|
||||
;;
|
||||
4)
|
||||
alter_port
|
||||
|
||||
;;
|
||||
*)
|
||||
exit
|
||||
;;
|
||||
esac
|
||||
echo ""
|
||||
done
|
||||
166
shell/code/ssh_manage.sh
Normal file
166
shell/code/ssh_manage.sh
Normal file
@ -0,0 +1,166 @@
|
||||
alter_root_password(){
|
||||
declare password
|
||||
read -p "请输入root密码：" password
|
||||
|
||||
echo "root:$password" |sudo chpasswd
|
||||
sudo sed -i 's/^#\?PermitRootLogin.*/PermitRootLogin yes/g' /etc/ssh/sshd_config
|
||||
sudo sed -i 's/^#\?PasswordAuthentication.*/PasswordAuthentication yes/g' /etc/ssh/sshd_config
|
||||
sudo systemctl restart sshd.service
|
||||
|
||||
echo "修改成功当前root密码为：$password"
|
||||
}
|
||||
|
||||
install_key(){
|
||||
declare key
|
||||
echo "请输入公钥或文件路径："
|
||||
echo "默认：$HOME/.ssh/id_rsa.pub"
|
||||
read -p "回车默认：" key
|
||||
|
||||
if [[ -z $key ]];then
|
||||
key="$HOME/.ssh/id_rsa.pub"
|
||||
fi
|
||||
|
||||
if [[ -f $key ]];then
|
||||
key=$(cat "$key")
|
||||
fi
|
||||
if [[ ! $key =~ ^ssh-(rsa|ecdsa-sha2-nistp[0-9]+|ed25519|dss) ]];then
|
||||
echo "公钥不合法"
|
||||
exit 1
|
||||
fi
|
||||
|
||||
mkdir -p "$HOME/.ssh"
|
||||
echo "$key" > "$HOME/.ssh/authorized_keys"
|
||||
|
||||
chmod 600 "$HOME/.ssh/authorized_keys"
|
||||
chmod 700 "$HOME/.ssh"
|
||||
|
||||
sudo sed -i 's/^#\?PubkeyAuthentication.*/PubkeyAuthentication yes/g' /etc/ssh/sshd_config
|
||||
|
||||
declare pick2
|
||||
echo "是否关闭密码登录："
|
||||
read -p "输入 n 取消关闭：" pick2
|
||||
|
||||
if [[ ! $pick2 =~ [Nn] ]];then
|
||||
sudo sed -i 's/^#\?PasswordAuthentication.*/PasswordAuthentication no/g' /etc/ssh/sshd_config
|
||||
fi
|
||||
|
||||
|
||||
systemctl restart sshd.service
|
||||
|
||||
echo "密钥安装完成"
|
||||
}
|
||||
|
||||
|
||||
add_user(){
|
||||
declare user_name
|
||||
read -p "请输入你想创建的用户名：" user_name
|
||||
|
||||
if id "$user_name" &>/dev/null; then
|
||||
echo "用户 $user_name 已存在。"
|
||||
exit 1
|
||||
fi
|
||||
|
||||
useradd -m -s /bin/bash "$user_name"
|
||||
|
||||
if grep -q "^$user_name " /etc/sudoers;then
|
||||
sudo sed -i "s/^#\?$user_name.*/lsy ALL=(ALL) NOPASSWD: ALL/g" /etc/sudoers
|
||||
else
|
||||
sudo echo "lsy ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers
|
||||
fi
|
||||
|
||||
|
||||
declare pick
|
||||
echo "用户登录方式"
|
||||
echo "y.密码登录"
|
||||
echo "n.使用root用户公钥"
|
||||
read -p "默认y，请输入：" pick
|
||||
if [[ ! $pick =~ [Nn] ]];then
|
||||
declare password
|
||||
read -p "请输入密码：" password
|
||||
echo "$user_name:$password" |sudo chpasswd
|
||||
sudo sed -i 's/^#\?PasswordAuthentication.*/PasswordAuthentication yes/g' /etc/ssh/sshd_config;
|
||||
echo "创建成功"
|
||||
echo "账号：$user_name"
|
||||
echo "密码：$password"
|
||||
else
|
||||
sudo sed -i 's/^#\?PubkeyAuthentication.*/PubkeyAuthentication yes/g' /etc/ssh/sshd_config
|
||||
su "$user_name" -c "mkdir -p '/home/$user_name/.ssh'"
|
||||
sudo cp "/root/.ssh/authorized_keys" "/home/$user_name/.ssh/authorized_keys"
|
||||
sudo chown lsy:lsy "/home/$user_name/.ssh/authorized_keys"
|
||||
su "$user_name" -c "chmod 600 '/home/$user_name/.ssh/authorized_keys'"
|
||||
su "$user_name" -c "chmod 700 '/home/$user_name/.ssh/'"
|
||||
|
||||
echo "创建成功"
|
||||
echo "账号：$user_name"
|
||||
echo "密钥登录"
|
||||
fi
|
||||
|
||||
declare pick2
|
||||
echo "是否关闭root登录"
|
||||
read -p "输入 n 取消关闭：" pick2
|
||||
|
||||
if [[ ! $pick2 =~ [Nn] ]];then
|
||||
sudo sed -i 's/^#\?PermitRootLogin.*/PermitRootLogin no/g' /etc/ssh/sshd_config
|
||||
echo "root用户登录已关闭"
|
||||
fi
|
||||
|
||||
sudo systemctl restart sshd.service
|
||||
}
|
||||
|
||||
|
||||
alter_port() {
|
||||
read -p "请输入需要修改的端口号: " port_number
|
||||
|
||||
if [[ -z $port_number ]];then
|
||||
port_number=22
|
||||
fi
|
||||
|
||||
if ! [[ $port_number =~ ^[0-9]+$ ]] || ! ((port_number > 0 && port_number < 65535)); then
|
||||
echo "端口不合法"
|
||||
return 1
|
||||
fi
|
||||
|
||||
if sudo lsof -i :$port_number -t >/dev/null; then
|
||||
echo "$port_number 端口已被占用"
|
||||
return 1
|
||||
fi
|
||||
|
||||
sudo sed -i "s/^#\?Port.*/Port $port_number/g" /etc/ssh/sshd_config
|
||||
|
||||
sudo systemctl restart sshd.service
|
||||
|
||||
echo "端口已经修改为$port_number，记得防火墙放行"
|
||||
}
|
||||
|
||||
if [ "$(id -u)" != "0" ]; then
|
||||
echo "该脚本必须以root权限运行" 1>&2
|
||||
exit 1
|
||||
fi
|
||||
|
||||
while true
|
||||
do
|
||||
echo "1.修改root密码"
|
||||
echo "2.安装公钥"
|
||||
echo "3.创建一个sudo用户"
|
||||
echo "4.修改ssh端口"
|
||||
read -p "请输入：" pick
|
||||
case $pick in
|
||||
1)
|
||||
alter_root_password
|
||||
;;
|
||||
2)
|
||||
install_key
|
||||
;;
|
||||
3)
|
||||
add_user
|
||||
;;
|
||||
4)
|
||||
alter_port
|
||||
|
||||
;;
|
||||
*)
|
||||
exit
|
||||
;;
|
||||
esac
|
||||
echo ""
|
||||
done
|
||||
Loading…
Reference in New Issue
Block a user