diff --git a/Resources/Assets.xcassets/AppIcon.appiconset/Contents.json b/Resources/Assets.xcassets/AppIcon.appiconset/Contents.json
index 2305880..8b7e047 100644
--- a/Resources/Assets.xcassets/AppIcon.appiconset/Contents.json
+++ b/Resources/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -1,6 +1,7 @@
 {
   "images" : [
     {
+      "filename" : "ShhShell.png",
       "idiom" : "universal",
       "platform" : "ios",
       "size" : "1024x1024"
diff --git a/Resources/Assets.xcassets/AppIcon.appiconset/ShhShell.png b/Resources/Assets.xcassets/AppIcon.appiconset/ShhShell.png
new file mode 100644
index 0000000..f7c9ac0
Binary files /dev/null and b/Resources/Assets.xcassets/AppIcon.appiconset/ShhShell.png differ
diff --git a/ShhShell.pxd b/ShhShell.pxd
new file mode 100644
index 0000000..ede140f
Binary files /dev/null and b/ShhShell.pxd differ
diff --git a/ShhShell/SSHHandler.swift b/ShhShell/SSHHandler.swift
index 51a0f86..a99a5df 100644
--- a/ShhShell/SSHHandler.swift
+++ b/ShhShell/SSHHandler.swift
@@ -10,13 +10,15 @@ import LibSSH
 import OSLog
 
 class SSHHandler: ObservableObject {
-	var session: ssh_session?
+	private var session: ssh_session?
 	
 	@Published var authorized: Bool = false
 	@Published var username: String
 	@Published var password: String
 	@Published var address: String
 	@Published var port: Int
+	
+	@Published var hostkey: Data?
 
 	private let logger = Logger(subsystem: "xy", category: "sshHandler")
 
@@ -38,22 +40,23 @@ class SSHHandler: ObservableObject {
 #endif
 	}
 	
-	func getHostkey() {
+	func getHostkey() -> Data? {
 		var hostkey: ssh_key?
 		ssh_get_server_publickey(session, &hostkey)
 		
 		var hostkeyB64: UnsafeMutablePointer<CChar>? = nil
-		if ssh_pki_export_pubkey_base64(hostkey, &hostkeyB64) == SSH_OK {
-			if let hostkeyB64 = hostkeyB64 {
-				print(String(cString: hostkeyB64))
-			}
-		}
+		
+		let status = ssh_pki_export_pubkey_base64(hostkey, &hostkeyB64)
+		guard status == SSH_OK else { return nil }
+		guard let data = hostkeyB64 else { return nil }
+		
+		return Data(base64Encoded: String(cString: data))
 	}
 	
 	func connect() -> Bool {
 		defer {
 			getAuthMethods()
-			getHostkey()
+			self.hostkey = getHostkey()
 		}
 		
 		var verbosity: Int = 0
@@ -85,6 +88,7 @@ class SSHHandler: ObservableObject {
 		ssh_free(session)
 		session = nil
 		authorized = false
+		hostkey = nil
 	}
 
 	func testExec() -> Bool {
@@ -262,7 +266,7 @@ class SSHHandler: ObservableObject {
 		ssh_channel_free(channel)
 	}
 	
-	func interactiveShellSession(channel: ssh_channel) {
+	private func interactiveShellSession(channel: ssh_channel) {
 		var status: CInt
 		
 		status = ssh_channel_request_pty(channel)
diff --git a/ShhShell/Views/ContentView.swift b/ShhShell/Views/ContentView.swift
index 6ef8ebc..a0ff550 100644
--- a/ShhShell/Views/ContentView.swift
+++ b/ShhShell/Views/ContentView.swift
@@ -10,19 +10,28 @@ import SwiftUI
 struct ContentView: View {
 	@ObservedObject var handler: SSHHandler
 	@State var connected: Bool = false
-	@State var testSucceded: Bool = false
+	@State var testSucceded: Bool?
 	
     var body: some View {
         VStack {
 			Text(connected ? "connected" : "not connected")
 				.foregroundStyle(connected ? .green : .red)
+			
 			Text(handler.authorized ? "authorized" : "unauthorized")
 				.foregroundStyle(handler.authorized ? .green : .red)
-			if testSucceded {
-				Image(systemName: "checkmark.circle")
+			
+			if let testSucceded = testSucceded {
+				Image(systemName: testSucceded ? "checkmark.circle" : "xmark.circle")
+					.foregroundStyle(testSucceded ? .green : .red)
 			}
+			
+			if handler.hostkey != nil {
+				Text("Hostkey: \(handler.hostkey!.base64EncodedString())")
+			}
+			
 			TextField("address", text: $handler.address)
 				.textFieldStyle(.roundedBorder)
+			
 			TextField(
 				"port",
 				text: Binding(
@@ -31,8 +40,10 @@ struct ContentView: View {
 			)
 				.keyboardType(.numberPad)
 				.textFieldStyle(.roundedBorder)
+			
 			TextField("username", text: $handler.username)
 				.textFieldStyle(.roundedBorder)
+			
 			TextField("password", text: $handler.password)
 				.textFieldStyle(.roundedBorder)
 
@@ -42,20 +53,28 @@ struct ContentView: View {
 				}
 				handler.authWithPw()
 			}
+			.disabled(connected)
+			
 			Button("disconnect") {
 				handler.disconnect()
 				withAnimation { testSucceded = false }
-				withAnimation { connected = false}
+				withAnimation { connected = false }
+				withAnimation { testSucceded = nil }
 			}
+			.disabled(!connected)
+			
 			Button("run a test command") {
-				withAnimation {
-					if handler.testExec() {
-						testSucceded = true
-					} else {
-						testSucceded = false
-					}
+				if handler.testExec() {
+					withAnimation { testSucceded = true }
+				} else {
+					withAnimation { testSucceded = false }
 				}
 			}
+			.disabled(!(connected && handler.authorized))
+			
+			Button("request a shell") {
+				handler.openShell()
+			}
         }
     }
 }