Classic ASP

Get the SSH Server's Authentication Methods

Demonstrates the Chilkat Ssh.GetAuthMethods method, which queries a connected but unauthenticated SSH server for the authentication methods it advertises. It takes no arguments and returns a lowercase, comma-separated list such as publickey,password,keyboard-interactive. Call it after Connect and before authenticating.

Background: Knowing what the server accepts lets a client choose the right authentication path — for example, falling back to keyboard-interactive when password auth is not offered. Note the documented connection side effect: querying methods advances the SSH authentication state, so call it at the correct point in the sequence.

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Classic ASP

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
success = 0

'  Demonstrates the Ssh.GetAuthMethods method, which queries a connected but unauthenticated SSH
'  server for the authentication methods it advertises.  It takes no arguments and returns a
'  lowercase, comma-separated list such as "publickey,password,keyboard-interactive".

set ssh = Server.CreateObject("Chilkat.Ssh")

'  Connect to the SSH server.  Port 22 is the usual SSH port.
sshPort = 22
success = ssh.Connect("ssh.example.com",sshPort)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( ssh.LastErrorText) & "</pre>"
    Response.End
End If

'  Query the advertised authentication methods.  Call after Connect, before authenticating.
methods = ssh.GetAuthMethods()
If (ssh.LastMethodSuccess = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( ssh.LastErrorText) & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "Server auth methods: " & methods) & "</pre>"

ssh.Disconnect 

%>
</body>
</html>