Multi-client servers + bring back stdinserver support

config/samples/sink.yml

@@ -8,7 +8,9 @@ jobs:
       ca: "ca.pem"
       cert: "cert.pem"
       key: "key.pem"
-      client_cn: "laptop1"
+      client_cns:
+        - "laptop1"
+        - "homeserver"
 global:
   logging:
     - type: "tcp"

config/samples/source_ssh.yml

@@ -3,7 +3,9 @@ jobs:
   type: source
   serve:
     type: stdinserver
-    client_identity: "client1"
+    client_identities:
+      - "client1"
+      - "client2"
   filesystems: {
     "<": true,
     "secret": false