diff --git a/.azure/pipelines/ci.yml b/.azure/pipelines/ci.yml
index c48ae0b91e..2c8027374a 100644
--- a/.azure/pipelines/ci.yml
+++ b/.azure/pipelines/ci.yml
@@ -633,6 +633,7 @@ stages:
       jobDisplayName: "Test: Ubuntu 16.04 x64"
       agentOs: Linux
       isTestingJob: true
+      useHostedUbuntu: false
       buildArgs: --all --test "/p:RunTemplateTests=false /p:SkipHelixReadyTests=true" $(_InternalRuntimeDownloadArgs)
       beforeBuild:
       - bash: "./eng/scripts/install-nginx-linux.sh"
diff --git a/.azure/pipelines/jobs/default-build.yml b/.azure/pipelines/jobs/default-build.yml
index df5adbe436..fe2d01308f 100644
--- a/.azure/pipelines/jobs/default-build.yml
+++ b/.azure/pipelines/jobs/default-build.yml
@@ -59,6 +59,7 @@ parameters:
   installNodeJs: true
   installJdk: true
   timeoutInMinutes: 180
+  useHostedUbuntu: true
 
   # We need longer than the default amount of 5 minutes to upload our logs/artifacts. (We currently take around 5 mins in the best case).
   # This makes sure we have time to upload everything in the case of a build timeout - really important for investigating a build
@@ -91,7 +92,15 @@ jobs:
       ${{ if eq(parameters.agentOs, 'macOS') }}:
         vmImage: macOS-10.14
       ${{ if eq(parameters.agentOs, 'Linux') }}:
-        vmImage: ubuntu-16.04
+        ${{ if eq(parameters.useHostedUbuntu, true) }}:
+          vmImage: ubuntu-16.04
+        ${{ if eq(parameters.useHostedUbuntu, false) }}:
+          ${{ if eq(variables['System.TeamProject'], 'public') }}:
+            name: NetCorePublic-Pool
+            queue: BuildPool.Ubuntu.1604.Amd64.Open
+          ${{ if eq(variables['System.TeamProject'], 'internal') }}:
+            name: NetCoreInternal-Pool
+            queue: BuildPool.Ubuntu.1604.Amd64
       ${{ if eq(parameters.agentOs, 'Windows') }}:
         ${{ if eq(variables['System.TeamProject'], 'public') }}:
           name: NetCorePublic-Pool
diff --git a/eng/scripts/install-nginx-linux.sh b/eng/scripts/install-nginx-linux.sh
index b9ad6daf93..bb4bea70b0 100755
--- a/eng/scripts/install-nginx-linux.sh
+++ b/eng/scripts/install-nginx-linux.sh
@@ -1,7 +1,9 @@
 #!/usr/bin/env bash
 
+set -euo pipefail
+
 curl -sSL http://nginx.org/download/nginx-1.14.2.tar.gz | tar zxfv - -C /tmp && cd /tmp/nginx-1.14.2/
-./configure --prefix=$HOME/nginxinstall --with-http_ssl_module
+./configure --prefix=$HOME/nginxinstall --with-http_ssl_module --without-http_rewrite_module
 make
 make install
-echo "##vso[task.prependpath]$HOME/nginxinstall/sbin"
\ No newline at end of file
+echo "##vso[task.prependpath]$HOME/nginxinstall/sbin"