diff --git a/scripts/riot b/scripts/riot
index 2342bcc..a742801 100755
--- a/scripts/riot
+++ b/scripts/riot
@@ -29,10 +29,6 @@ get_server_meta() {
     # presets -- match domain
     local domain=${remote##*.}
     local host=${remote%.*}
-    # if ends with dot
-    if [[ -z "$domain" ]]; then
-        domain="ibd"
-    fi
     # if there's no dot
     if [[ "$host" == "$domain" ]]; then
         domain="ibd"
@@ -51,7 +47,7 @@ get_server_meta() {
             RET_JUMP_SERVER="ssh@nasp.ob.ac.cn:36022"
             RET_TRUST_SERVER=1
             ;;
-        proxied )
+        x|proxied )
             RET_HOSTNAME=proxy.beardic.cn
             local tmp=$(sha256sum <<< "$host" | tr -cd "[:digit:]")
             tmp=${tmp:0:4}
@@ -60,7 +56,7 @@ get_server_meta() {
             RET_TRUST_SERVER=1
             ;;
         * )
-            fmt_warning "unknown domain: $domain. will try as host name"
+            test -z "$domain" || fmt_warning "unknown domain: \"$domain\". will try as host name"
             RET_HOSTNAME="$remote"
     esac
 }
diff --git a/tools/test.zsh b/tools/test.zsh
index 5a0b3f2..039d7c6 100644
--- a/tools/test.zsh
+++ b/tools/test.zsh
@@ -31,6 +31,7 @@ test $(echo n | tools/common.sh ask_for_yN "test") = "0"
 test $(echo | tools/common.sh ask_for_yN "test") = "0"
 test $(echo | tools/common.sh ask_for_Yn "test") = "1"
 test $(DFS_QUIET=1 tools/common.sh ask_for_Yn "test") = "1"
+test "$(DFS_TRUST=1 riot time@is.impt:2222,yes@you-r.right,you@are.really.recht.,ibd.,try@it scp /tmp/ ./tmp -D 2>/dev/null)" = 'scp -P 12022 -o ControlMaster=auto -o ControlPath=/tmp/sshcm-%C -o PermitLocalCommand=yes -o ProxyJump=time@is.impt:2222,yes@you-r.right,you@are.really.recht.,ibd. -r try@it.ibd.ink:"/tmp/" "./tmp"'
 
 # check alias
 alias p114