diff --git a/content/tutorials/hello-world.md b/content/tutorials/hello-world.md
index 3be8eab..788ce06 100644
--- a/content/tutorials/hello-world.md
+++ b/content/tutorials/hello-world.md
@@ -213,7 +213,7 @@
 ```
 $V_TUT/bin/client \
     --v23.credentials $V_TUT/cred/basics \
-    --server /:$PORT_HELLO
+    --server /localhost:$PORT_HELLO
 ```
 
 That's it - you've built and run your first Vanadium apps.
diff --git a/content/tutorials/management/device-manager.md b/content/tutorials/management/device-manager.md
index 56da70a..21549d7 100644
--- a/content/tutorials/management/device-manager.md
+++ b/content/tutorials/management/device-manager.md
@@ -53,10 +53,10 @@
 ```
 
 Check that the device manager service is mounted in the mount table. This
-should print `/:24000/devmgr`:
+should print `/localhost:24000/devmgr`:
 <!-- @globMountTable @test -->
 ```
-"${V_BIN}/namespace" glob "/:$PORT_MT/*"
+"${V_BIN}/namespace" glob "/localhost:$PORT_MT/*"
 ```
 
 # Claim the device manager
@@ -70,7 +70,7 @@
 
 <!-- @claimDeviceManager @test -->
 ```
-DEVICE_NAME=/:$PORT_MT/devmgr
+DEVICE_NAME=/localhost:$PORT_MT/devmgr
 "${V_BIN}/device" claim "${DEVICE_NAME}/device" hal
 "${V_BIN}/vrpc" identify "${DEVICE_NAME}/device"
 ```
@@ -104,7 +104,7 @@
 Verify that the fortune server app runs with the expected blessing name, `tutorial/fortune`:
 <!-- @identifyFortune @test -->
 ```
-"${V_BIN}/vrpc" identify "/:$PORT_MT/myFortunes"
+"${V_BIN}/vrpc" identify "/localhost:$PORT_MT/myFortunes"
 ```
 
 At this point, you can look at the log files from your server. To see what log files are available:
@@ -126,7 +126,7 @@
 
 <!-- @fortuneClient @test -->
 ```
-"${V_TUT}/bin/client" --server "/:$PORT_MT/myFortunes"
+"${V_TUT}/bin/client" --server "/localhost:$PORT_MT/myFortunes"
 ```
 
 # Cleanup
diff --git a/content/tutorials/naming/globber.md b/content/tutorials/naming/globber.md
index acf4b24..3273dee 100644
--- a/content/tutorials/naming/globber.md
+++ b/content/tutorials/naming/globber.md
@@ -237,7 +237,7 @@
     --v23.credentials $V_TUT/cred/basics \
     --v23.tcp.address :$PORT_MT &
 TUT_PID_MT=$!
-export V23_NAMESPACE=/:$PORT_MT
+export V23_NAMESPACE=/localhost:$PORT_MT
 ```
 
 Fire up the file server with its root directory set to "$V_TUT":
diff --git a/content/tutorials/naming/mount-table.md b/content/tutorials/naming/mount-table.md
index f8da18c..5fae2f6 100644
--- a/content/tutorials/naming/mount-table.md
+++ b/content/tutorials/naming/mount-table.md
@@ -53,7 +53,7 @@
 
 <!-- @queryMountTable @test -->
 ```
-$V_BIN/vrpc signature /:$PORT_MT
+$V_BIN/vrpc signature /localhost:$PORT_MT
 ```
 
 It also means that the mount table has a [principal] - it must run
@@ -90,7 +90,7 @@
 <!-- @mountFortune @test -->
 ```
 $V_BIN/namespace \
-    --v23.namespace.root /:$PORT_MT \
+    --v23.namespace.root /localhost:$PORT_MT \
     mount fortuneAlpha `cat $V_TUT/s1.txt` 100m
 ```
 
@@ -112,7 +112,7 @@
 <!-- @queryMountTable @test -->
 ```
 $V_BIN/namespace \
-    --v23.namespace.root /:$PORT_MT \
+    --v23.namespace.root /localhost:$PORT_MT \
     glob -l '*'
 ```
 
@@ -130,7 +130,7 @@
 <!-- @resolveFortune @test -->
 ```
 $V_BIN/namespace \
-    --v23.namespace.root /:$PORT_MT \
+    --v23.namespace.root /localhost:$PORT_MT \
     resolve fortuneAlpha
 ```
 
@@ -156,7 +156,7 @@
 <!-- @fortuneWithTable @test -->
 ```
 $V_TUT/bin/client \
-    --v23.namespace.root /:$PORT_MT \
+    --v23.namespace.root /localhost:$PORT_MT \
     --server fortuneAlpha
 ```
 
@@ -186,7 +186,7 @@
 
 <!-- @setNamespace @test -->
 ```
-export V23_NAMESPACE=/:$PORT_MT
+export V23_NAMESPACE=/localhost:$PORT_MT
 ```
 
 Now a fortune retrieval is as simple as:
diff --git a/content/tutorials/naming/namespace.md b/content/tutorials/naming/namespace.md
index baa4fda..7480084 100644
--- a/content/tutorials/naming/namespace.md
+++ b/content/tutorials/naming/namespace.md
@@ -48,7 +48,7 @@
 <!-- @mountFortune @test -->
 ```
 $V_BIN/namespace \
-    --v23.namespace.root /:$PORT_MT_HOME \
+    --v23.namespace.root /localhost:$PORT_MT_HOME \
     mount television `cat $V_TUT/server.txt` 2h
 ```
 
@@ -72,8 +72,8 @@
 <!-- @tableInATable @test -->
 ```
 $V_BIN/mounttable \
-    --v23.namespace.root /:$PORT_MT_HOME \
-    mount meters /:$PORT_MT_METERS 2h M
+    --v23.namespace.root /localhost:$PORT_MT_HOME \
+    mount meters /localhost:$PORT_MT_METERS 2h M
 ```
 
 The trailing `M` sets a bit in the mount table noting that this
@@ -92,7 +92,7 @@
 <!-- @firstGlobOfHome @test -->
 ```
 $V_BIN/namespace \
-    --v23.namespace.root /:$PORT_MT_HOME \
+    --v23.namespace.root /localhost:$PORT_MT_HOME \
     glob '*'
 ```
 
@@ -109,14 +109,14 @@
 <!-- @mountGas @test -->
 ```
 $V_BIN/namespace \
-    --v23.namespace.root /:$PORT_MT_METERS \
+    --v23.namespace.root /localhost:$PORT_MT_METERS \
     mount gas `cat $V_TUT/server.txt` 2h
 ```
 
 <!-- @mountElectricFortune @test -->
 ```
 $V_BIN/namespace \
-    --v23.namespace.root /:$PORT_MT_METERS \
+    --v23.namespace.root /localhost:$PORT_MT_METERS \
     mount electric `cat $V_TUT/server.txt` 2h
 ```
 
@@ -130,7 +130,7 @@
 <!-- @queryTableInATable @test -->
 ```
 $V_BIN/namespace \
-    --v23.namespace.root /:$PORT_MT_HOME \
+    --v23.namespace.root /localhost:$PORT_MT_HOME \
     glob '...'
 ```
 
@@ -144,7 +144,7 @@
 <!-- @fortuneNestedInTable @test -->
 ```
 $V_TUT/bin/client \
-    --v23.namespace.root /:$PORT_MT_HOME \
+    --v23.namespace.root /localhost:$PORT_MT_HOME \
     --server meters/gas
 ```
 
@@ -167,7 +167,7 @@
 <!-- @mountElectricFortune @test -->
 ```
 $V_BIN/namespace \
-    --v23.namespace.root /:$PORT_MT_HOME \
+    --v23.namespace.root /localhost:$PORT_MT_HOME \
     mount meters/gas `cat $V_TUT/server.txt` 2h
 ```
 
@@ -201,8 +201,8 @@
 <!-- @mountMetersInUtility @test -->
 ```
 $V_BIN/mounttable \
-    --v23.namespace.root /:$PORT_MT_UTILITY \
-    mount 12345 /:$PORT_MT_METERS 5h M
+    --v23.namespace.root /localhost:$PORT_MT_UTILITY \
+    mount 12345 /localhost:$PORT_MT_METERS 5h M
 ```
 
 The utility company can see the table you call `METERS` as an account
@@ -226,8 +226,8 @@
 <!-- @mountUtilitiesInHome @test -->
 ```
 $V_BIN/mounttable \
-    --v23.namespace.root /:$PORT_MT_HOME \
-    mount cityUtilities /:$PORT_MT_UTILITY 5h M
+    --v23.namespace.root /localhost:$PORT_MT_HOME \
+    mount cityUtilities /localhost:$PORT_MT_UTILITY 5h M
 ```
 
 ![The HOME namespace](/images/tut/namespace-home-extended.svg)
@@ -239,7 +239,7 @@
 <!-- @readGas @test -->
 ```
 $V_TUT/bin/client \
-    --v23.namespace.root /:$PORT_MT_HOME \
+    --v23.namespace.root /localhost:$PORT_MT_HOME \
     --server cityUtilities/12345/gas
 ```
 
@@ -254,8 +254,8 @@
 <!-- @mountUtilityInMeters @test -->
 ```
 $V_BIN/mounttable \
-    --v23.namespace.root /:$PORT_MT_METERS \
-    mount x /:$PORT_MT_UTILITY 5h M
+    --v23.namespace.root /localhost:$PORT_MT_METERS \
+    mount x /localhost:$PORT_MT_UTILITY 5h M
 ```
 
 Now read your gas meter via a name with cycles:
@@ -263,7 +263,7 @@
 <!-- @longName @test -->
 ```
 $V_TUT/bin/client \
-    --v23.namespace.root /:$PORT_MT_HOME \
+    --v23.namespace.root /localhost:$PORT_MT_HOME \
     --server meters/x/12345/x/12345/x/12345/x/12345/gas
 ```
 
@@ -275,10 +275,10 @@
 <!-- @moreResolving @test -->
 ```
 name1=$($V_BIN/namespace \
-    --v23.namespace.root /:$PORT_MT_HOME \
+    --v23.namespace.root /localhost:$PORT_MT_HOME \
     resolve meters/x/12345/x/12345/x/12345/x/12345/gas)
 name2=$($V_BIN/namespace \
-    --v23.namespace.root /:$PORT_MT_METERS \
+    --v23.namespace.root /localhost:$PORT_MT_METERS \
     resolve gas)
 echo "These should match:"
 echo -e "$name1\n$name2"
@@ -295,7 +295,7 @@
 <!-- @queryTableInATable @test -->
 ```
 $V_BIN/namespace \
-    --v23.namespace.root /:$PORT_MT_HOME \
+    --v23.namespace.root /localhost:$PORT_MT_HOME \
     glob '...'
 ```
 
diff --git a/content/tutorials/naming/suffix-part1.md b/content/tutorials/naming/suffix-part1.md
index 6d5876d..83de72a 100644
--- a/content/tutorials/naming/suffix-part1.md
+++ b/content/tutorials/naming/suffix-part1.md
@@ -242,7 +242,7 @@
     --v23.credentials $V_TUT/cred/basics \
     --v23.tcp.address :$PORT_MT &
 TUT_PID_MT=$!
-export V23_NAMESPACE=/:$PORT_MT
+export V23_NAMESPACE=/localhost:$PORT_MT
 ```
 
 Restart the fortune server to publish itself in the mount table at the
diff --git a/content/tutorials/naming/suffix-part2.md b/content/tutorials/naming/suffix-part2.md
index 89d2269..90ac736 100644
--- a/content/tutorials/naming/suffix-part2.md
+++ b/content/tutorials/naming/suffix-part2.md
@@ -185,7 +185,7 @@
     --v23.credentials $V_TUT/cred/prophInc \
     --v23.tcp.address :$PORT_MT &
 TUT_PID_MT=$!
-export V23_NAMESPACE=/:$PORT_MT
+export V23_NAMESPACE=/localhost:$PORT_MT
 ```
 
 Add the fortune server to the mount table at the name `prophInc`: