PHP

Connect to an SSH Server

Demonstrates the Chilkat Ssh.Connect method, which establishes a connection to an SSH server. The first argument is the hostname (a DNS name or a numeric IPv4/IPv6 address) and the second is the TCP port, usually 22. Connecting is the first step; authentication follows before any channels can be opened.

Background: Connect establishes only the SSH transport — the encrypted channel and host-key exchange — but does not log in. An SSH session is always used in stages: connect, authenticate, then open one or more channels for shell, exec, or port-forwarding work. Timeouts and optional SOCKS/HTTP proxying are controlled by the object's properties before this call.

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Chilkat2 PHP

<?php

use Chilkat2\Ssh;

// Demonstrates the Ssh.Connect method, which establishes a connection to an SSH server.  The
// 1st argument is the hostname (a DNS name or numeric IP) and the 2nd is the TCP port.

$ssh = new Ssh();

// Port 22 is the usual SSH port.
$sshPort = 22;
try {
    $ssh->Connect('ssh.example.com', $sshPort);
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

echo "Connected to the SSH server.\n";

// (Authentication would follow here before opening channels.)

$ssh->Disconnect();