diff --git a/setup/start.sh b/setup/start.sh
index 863bd3236..9b7f40ebf 100755
--- a/setup/start.sh
+++ b/setup/start.sh
@@ -42,7 +42,7 @@ systemctl restart apparmor
 usermod ${USER} -a -G docker
 temp_file=$(mktemp)
 # create systemd drop-in. some apps do not work with aufs
-echo -e "[Service]\nExecStart=\nExecStart=/usr/bin/dockerd -H fd:// --log-driver=journald --exec-opt native.cgroupdriver=cgroupfs --storage-driver=devicemapper --dns=172.18.0.1 --dns-search=." > "${temp_file}"
+echo -e "[Service]\nExecStart=\nExecStart=/usr/bin/dockerd -H fd:// --log-driver=journald --exec-opt native.cgroupdriver=cgroupfs --storage-driver=devicemapper" > "${temp_file}"
 
 systemctl enable docker
 # restart docker if options changed
diff --git a/src/docker.js b/src/docker.js
index 51df8f9fb..4b55a8926 100644
--- a/src/docker.js
+++ b/src/docker.js
@@ -203,6 +203,8 @@ function createSubcontainer(app, name, cmd, options, callback) {
                 CpuShares: 512, // relative to 1024 for system processes
                 VolumesFrom: isAppContainer ? null : [ app.containerId + ":rw" ],
                 NetworkMode: isAppContainer ? 'cloudron' : ('container:' + app.containerId), // share network namespace with parent
+                Dns: ['172.18.0.1'], // use internal dns
+                DnsSearch: ['.'], // use internal dns
                 SecurityOpt: enableSecurityOpt ? [ "apparmor:docker-cloudron-app" ] : null // profile available only on cloudron
             }
         };
diff --git a/src/infra_version.js b/src/infra_version.js
index 8e2c6987a..53a33de26 100644
--- a/src/infra_version.js
+++ b/src/infra_version.js
@@ -7,7 +7,7 @@
 exports = module.exports = {
     // a major version makes all apps restore from backup
     // a minor version makes all apps re-configure themselves
-    'version': '48.1.0',
+    'version': '48.2.0',
 
     'baseImages': [ 'cloudron/base:0.10.0' ],
 
diff --git a/src/platform.js b/src/platform.js
index 75cc5fd18..3f8151f07 100644
--- a/src/platform.js
+++ b/src/platform.js
@@ -141,6 +141,8 @@ function startGraphite(callback) {
                 --net-alias graphite \
                 -m 75m \
                 --memory-swap 150m \
+                --dns 172.18.0.1 \
+                --dns-search=. \
                 -p 127.0.0.1:2003:2003 \
                 -p 127.0.0.1:2004:2004 \
                 -p 127.0.0.1:8000:8000 \
@@ -168,6 +170,8 @@ function startMysql(callback) {
                 --net-alias mysql \
                 -m ${memoryLimit}m \
                 --memory-swap ${memoryLimit * 2}m \
+                --dns 172.18.0.1 \
+                --dns-search=. \
                 -v "${dataDir}/mysql:/var/lib/mysql" \
                 -v "${dataDir}/addons/mysql_vars.sh:/etc/mysql/mysql_vars.sh:ro" \
                 --read-only -v /tmp -v /run "${tag}"`;
@@ -192,6 +196,8 @@ function startPostgresql(callback) {
                 --net-alias postgresql \
                 -m ${memoryLimit}m \
                 --memory-swap ${memoryLimit * 2}m \
+                --dns 172.18.0.1 \
+                --dns-search=. \
                 -v "${dataDir}/postgresql:/var/lib/postgresql" \
                 -v "${dataDir}/addons/postgresql_vars.sh:/etc/postgresql/postgresql_vars.sh:ro" \
                 --read-only -v /tmp -v /run "${tag}"`;
@@ -216,6 +222,8 @@ function startMongodb(callback) {
                 --net-alias mongodb \
                 -m ${memoryLimit}m \
                 --memory-swap ${memoryLimit * 2}m \
+                --dns 172.18.0.1 \
+                --dns-search=. \
                 -v "${dataDir}/mongodb:/var/lib/mongodb" \
                 -v "${dataDir}/addons/mongodb_vars.sh:/etc/mongodb_vars.sh:ro" \
                 --read-only -v /tmp -v /run "${tag}"`;
@@ -277,6 +285,8 @@ function startMail(callback) {
                             --net-alias mail \
                             -m ${memoryLimit}m \
                             --memory-swap ${memoryLimit * 2}m \
+                            --dns 172.18.0.1 \
+                            --dns-search=. \
                             --env ENABLE_MDA=${mailConfig.enabled} \
                             -v "${dataDir}/mail:/app/data" \
                             -v "${dataDir}/addons/mail:/etc/mail" \