Possible to manage linux services from website? - php

Question

I have a couple services that id like to have access to from a website. Like maybe a simple website with login for users and access to start|Stop|Restart services if they are down.
IDK if this is possible within a webpage as im not all that experienced yet.
From a shell i can just type out service b3-2 start and the service will start. now i just want to be able todo that from within a webpage where the start|Stop|Restart are buttons and there's a info/status area and an output box below everything to show errors if any.
If anyone can help me with this that would be awesome. Mostly my questions are-
Is it possible to do this from a webpage?
If so how hard will it be to create?
What else can you tell me to better help me with this?
on a side note il be using this for mostly only my B3 services(Big Brother Bot).

Answer 1

I wrote long time ago an 'Eggdrop Webinterface' in PHP with http://de.php.net/manual/en/book.ssh2.php Module.
You can connect with this module via SSH to your linux server and submit shell commands. In my Webinterface I wrote an Shellscript that do all the jobs (Add / remove / start / stop and so on) and executed over php ssh2 module.
<?php
class ssh
{
private $sql;
private $con;
private static $instance;
public static function getInstance()
{
if (!self::$instance)
{
self::$instance = new ssh();
}
return self::$instance;
}
function __construct()
{
$this->sql = sql::getInstance();
}
/* Verbindung über SSH aufnehmen */
public function connect ($rootid)
{
global $cfg;
$q = $this->sql->query("SELECT ROOT_SSH_IP, ROOT_SSH_USER, ROOT_SSH_PASS, ROOT_SSH_PORT FROM ".prfx."rootserver WHERE ROOT_ID = '".$rootid."'");
$r = $this->sql->content($q);
$blowfish = new Blowfish($cfg["BLOWFISHKEY"]);
$pass = $blowfish->Decrypt($r["ROOT_SSH_PASS"]);
$this->ssh_connect($r["ROOT_SSH_IP"], $r["ROOT_SSH_PORT"], $pass, $r["ROOT_SSH_USER"]);
return true;
}
/* Disconnect */
public function my_ssh_disconnect($reason, $message, $language) {
printf("Server disconnected with reason code [%d] and message: %s\n",
$reason, $message);
return true;
}
/* Eigentliche ssh_connect Funktion */
public function ssh_connect($host, $port, $pass, $user="root")
{
$methods = array(
'kex' => 'diffie-hellman-group1-sha1',
'client_to_server' => array(
'crypt' => '3des-cbc',
'comp' => 'none'),
'server_to_client' => array(
'crypt' => 'aes256-cbc,aes192-cbc,aes128-cbc',
'comp' => 'none'));
$callbacks = array();
$this->con = ssh2_connect($host, $port, $methods, $callbacks);
if (!$this->con) die('Connection failed');
else {
if (!ssh2_auth_password($this->con, $user, trim($pass))) {
die("login failed.");
}
}
return true;
}
/* Befehle ausführen */
public function ssh_exec ($cmd, $stderr=true)
{
if ($stderr == true)
{
$stream = ssh2_exec($this->con, $cmd);
$err_stream = ssh2_fetch_stream($stream, SSH2_STREAM_STDERR);
stream_set_blocking($err_stream, true);
$result_err = stream_get_contents($err_stream);
if (empty($result_err))
{
stream_set_blocking($stream, true);
$out = stream_get_contents($stream);
return $out;
}
else {
return $result_err;
}
}
else {
$stream = ssh2_exec($this->con, $cmd);
stream_set_blocking($stream, true);
$out = stream_get_contents($stream);
return $out;
}
}
/* Verbindung beenden */
public function quit()
{
$stream = ssh2_exec($this->con, 'exit');
stream_set_blocking($stream, true);
$output = stream_get_contents($stream);
return true;
}
}
In my case I stored Serveraccounts in MySQL Table with encrypted password.
hope that little class helps

Answer 2

if you want to "write it yourself" you could mix bash,php and/or other scripting..