diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index 0405bd2..405bf36 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -158,11 +158,8 @@ jobs:
           port_suffix="$(( ${GITHUB_RUN_ID:-$$} % 10000 ))"
           export RENDEZVOUS_HTTP_HOST_PORT="$(( 20000 + port_suffix ))"
           export RENDEZVOUS_UDP_HOST_PORT="$(( 40000 + port_suffix ))"
-          export RENDEZVOUS_HTTP_BIND_ADDRESS="0.0.0.0"
-          runner_host_gateway="$(docker inspect "$HOSTNAME" | jq -er \
-            '.[0].NetworkSettings.Networks | to_entries[0].value.Gateway')"
-          export RENDEZVOUS_SMOKE_HTTP_URL="http://${runner_host_gateway}:${RENDEZVOUS_HTTP_HOST_PORT}/"
-          export RENDEZVOUS_SMOKE_UDP_ENDPOINT="${runner_host_gateway}:${RENDEZVOUS_UDP_HOST_PORT}"
+          runner_network="$(docker inspect "$HOSTNAME" | jq -er \
+            '.[0].NetworkSettings.Networks | keys[0]')"
           runner_workspace_source="$(docker inspect "$HOSTNAME" | jq -er \
             --arg destination "$GITHUB_WORKSPACE" \
             '.[0].Mounts[] | select(.Destination == $destination) | .Source')"
@@ -174,6 +171,12 @@ jobs:
           docker compose -f "$compose_file" up --no-build --detach
           container_id="$(docker compose -f "$compose_file" ps -q rendezvous)"
           test -n "$container_id"
+          docker network connect "$runner_network" "$container_id"
+          service_ip="$(docker inspect "$container_id" | jq -er \
+            --arg network "$runner_network" \
+            '.[0].NetworkSettings.Networks[$network].IPAddress')"
+          export RENDEZVOUS_SMOKE_HTTP_URL="http://${service_ip}:8080/"
+          export RENDEZVOUS_SMOKE_UDP_ENDPOINT="${service_ip}:9050"
           test "$(docker inspect --format '{{.Config.User}}' "$container_id")" = "1654:1654"
           test "$(docker inspect --format '{{.HostConfig.ReadonlyRootfs}}' "$container_id")" = "true"
           test "$(docker inspect --format '{{range .Mounts}}{{if eq .Destination "/app/appsettings.Production.json"}}{{.RW}}{{end}}{{end}}' "$container_id")" = "false"
diff --git a/.gitea/workflows/release.yml b/.gitea/workflows/release.yml
index 83ed4d3..55f1a28 100644
--- a/.gitea/workflows/release.yml
+++ b/.gitea/workflows/release.yml
@@ -126,11 +126,8 @@ jobs:
           port_suffix="$(( ${GITHUB_RUN_ID:-$$} % 10000 ))"
           export RENDEZVOUS_HTTP_HOST_PORT="$(( 20000 + port_suffix ))"
           export RENDEZVOUS_UDP_HOST_PORT="$(( 40000 + port_suffix ))"
-          export RENDEZVOUS_HTTP_BIND_ADDRESS="0.0.0.0"
-          runner_host_gateway="$(docker inspect "$HOSTNAME" | jq -er \
-            '.[0].NetworkSettings.Networks | to_entries[0].value.Gateway')"
-          export RENDEZVOUS_SMOKE_HTTP_URL="http://${runner_host_gateway}:${RENDEZVOUS_HTTP_HOST_PORT}/"
-          export RENDEZVOUS_SMOKE_UDP_ENDPOINT="${runner_host_gateway}:${RENDEZVOUS_UDP_HOST_PORT}"
+          runner_network="$(docker inspect "$HOSTNAME" | jq -er \
+            '.[0].NetworkSettings.Networks | keys[0]')"
           runner_workspace_source="$(docker inspect "$HOSTNAME" | jq -er \
             --arg destination "$GITHUB_WORKSPACE" \
             '.[0].Mounts[] | select(.Destination == $destination) | .Source')"
@@ -138,6 +135,14 @@ jobs:
           export RENDEZVOUS_SECRET_SOURCE="$runner_workspace_source/deploy/compose/secrets/signing-key"
           export RENDEZVOUS_IMAGE="git.finalfactory.de/heikyu/rendezvous:${RENDEZVOUS_VERSION}"
           docker compose -f deploy/compose/compose.yaml up --detach --no-build
+          container_id="$(docker compose -f deploy/compose/compose.yaml ps -q rendezvous)"
+          test -n "$container_id"
+          docker network connect "$runner_network" "$container_id"
+          service_ip="$(docker inspect "$container_id" | jq -er \
+            --arg network "$runner_network" \
+            '.[0].NetworkSettings.Networks[$network].IPAddress')"
+          export RENDEZVOUS_SMOKE_HTTP_URL="http://${service_ip}:8080/"
+          export RENDEZVOUS_SMOKE_UDP_ENDPOINT="${service_ip}:9050"
           for attempt in {1..100}; do
             curl --fail --silent "${RENDEZVOUS_SMOKE_HTTP_URL%/}/health/ready" >/dev/null 2>&1 && break
             if (( attempt == 100 )); then
diff --git a/deploy/compose/compose.yaml b/deploy/compose/compose.yaml
index e216da5..df98ae1 100644
--- a/deploy/compose/compose.yaml
+++ b/deploy/compose/compose.yaml
@@ -33,5 +33,5 @@ services:
       - ${RENDEZVOUS_CONFIG_SOURCE:-./appsettings.Production.json}:/app/appsettings.Production.json:ro
       - ${RENDEZVOUS_SECRET_SOURCE:-./secrets/signing-key}:/run/secrets/rendezvous-signing-key:ro
     ports:
-      - "${RENDEZVOUS_HTTP_BIND_ADDRESS:-127.0.0.1}:${RENDEZVOUS_HTTP_HOST_PORT:-8080}:8080/tcp"
+      - "127.0.0.1:${RENDEZVOUS_HTTP_HOST_PORT:-8080}:8080/tcp"
       - "${RENDEZVOUS_UDP_HOST_PORT:-9050}:9050/udp"
diff --git a/docs/deployment/linux.md b/docs/deployment/linux.md
index 76f3c20..337e217 100644
--- a/docs/deployment/linux.md
+++ b/docs/deployment/linux.md
@@ -49,9 +49,9 @@ Compose, then point `RENDEZVOUS_SMOKE_HTTP_URL` and
 and production-advertised service ports remain 8080/9050. Sibling-container CI
 runners may also set `RENDEZVOUS_CONFIG_SOURCE` and
 `RENDEZVOUS_SECRET_SOURCE` to host-visible absolute bind-source paths; local
-operators should normally keep the checked-in relative defaults. Those runners
-may set `RENDEZVOUS_HTTP_BIND_ADDRESS=0.0.0.0` and target their Docker host
-gateway; do not widen the default loopback HTTP binding on an ordinary host.
+operators should normally keep the checked-in relative defaults. CI attaches
+the service to the ephemeral job network for smoke traffic; it does not widen
+the default loopback HTTP publication.
 
 `deploy/compose/appsettings.Production.json` is a local/private-bridge smoke
 profile, not an Internet template: TCP is published only on host loopback, the
diff --git a/tests/FinalFactory.Rendezvous.Tests/Release/ReleaseCompatibilityTests.cs b/tests/FinalFactory.Rendezvous.Tests/Release/ReleaseCompatibilityTests.cs
index 9194fd7..637f855 100644
--- a/tests/FinalFactory.Rendezvous.Tests/Release/ReleaseCompatibilityTests.cs
+++ b/tests/FinalFactory.Rendezvous.Tests/Release/ReleaseCompatibilityTests.cs
@@ -169,7 +169,6 @@ public sealed class ReleaseCompatibilityTests
     {
         string root = FindRepositoryRoot();
         string compose = File.ReadAllText(Path.Combine(root, "deploy/compose/compose.yaml"));
-        Assert.Contains("${RENDEZVOUS_HTTP_BIND_ADDRESS:-127.0.0.1}", compose, StringComparison.Ordinal);
         Assert.Contains("${RENDEZVOUS_HTTP_HOST_PORT:-8080}:8080/tcp", compose, StringComparison.Ordinal);
         Assert.Contains("${RENDEZVOUS_UDP_HOST_PORT:-9050}:9050/udp", compose, StringComparison.Ordinal);
         Assert.Contains("${RENDEZVOUS_CONFIG_SOURCE:-./appsettings.Production.json}", compose, StringComparison.Ordinal);
@@ -179,8 +178,9 @@ public sealed class ReleaseCompatibilityTests
         {
             string workflow = File.ReadAllText(Path.Combine(root, ".gitea/workflows", workflowName));
             Assert.Contains("GITHUB_RUN_ID", workflow, StringComparison.Ordinal);
-            Assert.Contains("runner_host_gateway", workflow, StringComparison.Ordinal);
-            Assert.Contains("RENDEZVOUS_HTTP_BIND_ADDRESS", workflow, StringComparison.Ordinal);
+            Assert.Contains("runner_network", workflow, StringComparison.Ordinal);
+            Assert.Contains("docker network connect", workflow, StringComparison.Ordinal);
+            Assert.Contains("service_ip", workflow, StringComparison.Ordinal);
             Assert.Contains("RENDEZVOUS_HTTP_HOST_PORT", workflow, StringComparison.Ordinal);
             Assert.Contains("RENDEZVOUS_UDP_HOST_PORT", workflow, StringComparison.Ordinal);
             Assert.Contains("RENDEZVOUS_SMOKE_HTTP_URL", workflow, StringComparison.Ordinal);