Ubuntu run apache as the www-data user and sudo command ask for password everytime you run sudo command. If you want to use sudo without a password from a web page, you need to allow www-data user to run sudo command with no password.
Steps:
1. Run sudo visudo command.
2. add below lines at the end of the file.
www-data ALL=NOPASSWD: ALL
3. or you can specify only for specific program.
www-data ALL=NOPASSWD: /sbin/iptables
Below PHP code to ban ip using ufw firewall in Linux ubuntu.
Steps:
1. Run sudo visudo command.
2. add below lines at the end of the file.
www-data ALL=NOPASSWD: ALL
3. or you can specify only for specific program.
www-data ALL=NOPASSWD: /sbin/iptables
Below PHP code to ban ip using ufw firewall in Linux ubuntu.
<form action="" method="post">
Enter IP : <input type="text" name="ip">
<input type="submit" value="Ban IP">
</form>
<?php
if(isset($_POST["ip"]))
{
$ip= $_POST["ip"];
echo "$ip";
$ban = shell_exec("sudo ufw deny from $ip");
echo "Banned".$ban;
}
?>4. Done
