diff --git a/tests/compat.sh b/tests/compat.sh
index ed044c3..9f2798e 100755
--- a/tests/compat.sh
+++ b/tests/compat.sh
@@ -1230,7 +1230,7 @@
             cp $CLI_OUT c-cli-${TESTS}.log
             echo "  ! outputs saved to c-srv-${TESTS}.log, c-cli-${TESTS}.log"
 
-            if [ "X${USER:-}" = Xbuildbot -o "X${LOGNAME:-}" = Xbuildbot -o "${LOG_FAILURE_ON_STDOUT:-0}" != 0 ]; then
+            if [ "${LOG_FAILURE_ON_STDOUT:-0}" != 0 ]; then
                 echo "  ! server output:"
                 cat c-srv-${TESTS}.log
                 echo "  ! ==================================================="
diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index 9715430..46dc83e 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -443,7 +443,7 @@
     fi
     echo "  ! outputs saved to o-XXX-${TESTS}.log"
 
-    if [ "X${USER:-}" = Xbuildbot -o "X${LOGNAME:-}" = Xbuildbot -o "${LOG_FAILURE_ON_STDOUT:-0}" != 0 ]; then
+    if [ "${LOG_FAILURE_ON_STDOUT:-0}" != 0 ]; then
         echo "  ! server output:"
         cat o-srv-${TESTS}.log
         echo "  ! ========================================================"
@@ -695,6 +695,19 @@
         return
     fi
 
+    # update DTLS variable
+    detect_dtls "$SRV_CMD"
+
+    # if the test uses DTLS but no custom proxy, add a simple proxy
+    # as it provides timing info that's useful to debug failures
+    if [ -z "$PXY_CMD" ] && [ "$DTLS" -eq 1 ]; then
+        PXY_CMD="$P_PXY"
+        case " $SRV_CMD " in
+            *' server_addr=::1 '*)
+                PXY_CMD="$PXY_CMD server_addr=::1 listen_addr=::1";;
+        esac
+    fi
+
     # fix client port
     if [ -n "$PXY_CMD" ]; then
         CLI_CMD=$( echo "$CLI_CMD" | sed s/+SRV_PORT/$PXY_PORT/g )
@@ -702,9 +715,6 @@
         CLI_CMD=$( echo "$CLI_CMD" | sed s/+SRV_PORT/$SRV_PORT/g )
     fi
 
-    # update DTLS variable
-    detect_dtls "$SRV_CMD"
-
     # prepend valgrind to our commands if active
     if [ "$MEMCHECK" -gt 0 ]; then
         if is_polar "$SRV_CMD"; then
@@ -721,19 +731,19 @@
 
         # run the commands
         if [ -n "$PXY_CMD" ]; then
-            echo "$PXY_CMD" > $PXY_OUT
+            printf "# %s\n%s\n" "$NAME" "$PXY_CMD" > $PXY_OUT
             $PXY_CMD >> $PXY_OUT 2>&1 &
             PXY_PID=$!
             wait_proxy_start "$PXY_PORT" "$PXY_PID"
         fi
 
         check_osrv_dtls
-        echo "$SRV_CMD" > $SRV_OUT
+        printf "# $NAME\n$SRV_CMD\n" > $SRV_OUT
         provide_input | $SRV_CMD >> $SRV_OUT 2>&1 &
         SRV_PID=$!
         wait_server_start "$SRV_PORT" "$SRV_PID"
 
-        echo "$CLI_CMD" > $CLI_OUT
+        printf "# $NAME\n$CLI_CMD\n" > $CLI_OUT
         eval "$CLI_CMD" >> $CLI_OUT 2>&1 &
         wait_client_done