diff --git a/NEWS.md b/NEWS.md
index fb2d8ea2..2aa7f849 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -39,6 +39,7 @@ Bug Fixes:
 - Static maps fails for unsupported formats
 - Handling errors extracting the column type on dataviews
 - Fix `meta.stats.estimatedFeatureCount` for aggregations and queries with tokens
+- Static maps filters correctly if `layer` option is passed in the url.
 
 ## 6.1.0
 Released 2018-04-16
diff --git a/config/environments/development.js.example b/config/environments/development.js.example
index d6345b82..87c98032 100644
--- a/config/environments/development.js.example
+++ b/config/environments/development.js.example
@@ -61,13 +61,13 @@ var config = {
 
     // Resource URLs expose endpoints to request/retrieve metadata associated to Maps: dataviews, analysis node status.
     //
-    // This URLs depend on how `base_url_detached` and `user_from_host` are configured: the application can be
+    // This URLs depend on how `routes` and `user_from_host` are configured: the application can be
     // configured to accept request with the {user} in the header host or in the request path.
     // It also might depend on the configured cdn_url via `serverMetadata.cdn_url`.
     //
     // This template allows to make the endpoints generation more flexible, the template exposes the following params:
     //  1. {{=it.cdn_url}}: will be used when `serverMetadata.cdn_url` exists.
-    //  2. {{=it.user}}: will use the username as extraced from `user_from_host` or `base_url_detached`.
+    //  2. {{=it.user}}: will use the username as extraced from `user_from_host` or `routes`.
     //  3. {{=it.port}}: will use the `port` from this very same configuration file.
     ,resources_url_templates: {
         http: 'http://{{=it.user}}.localhost.lan:{{=it.port}}/api/v1/map',
@@ -87,12 +87,12 @@ var config = {
     // idle socket timeout, in milliseconds
     ,socket_timeout: 600000
     ,enable_cors: true
-    ,cache_enabled: false
+    ,cache_enabled: true
     ,log_format: ':req[X-Real-IP] :method :req[Host]:url :status :response-time ms -> :res[Content-Type] (:res[X-Tiler-Profiler]) (:res[X-Tiler-Errors])'
     // If log_filename is given logs will be written
     // there, in append mode. Otherwise stdout is used (default).
     // Log file will be re-opened on receiving the HUP signal
-    ,log_filename: undefined
+    ,log_filename: 'logs/node-windshaft.log'
     // Templated database username for authorized user
     // Supported labels: 'user_id' (read from redis)
     ,postgres_auth_user: 'development_cartodb_user_<%= user_id %>'
@@ -118,7 +118,7 @@ var config = {
     ,statsd: {
         host: 'localhost',
         port: 8125,
-        prefix: 'dev.',
+        prefix: 'dev.', // could be hostname, better not containing dots
         cacheDns: true
         // support all allowed node-statsd options
     }
@@ -204,7 +204,8 @@ var config = {
                persist_connection: false,
                simplify_geometries: true,
                use_overviews: true, // use overviews to retrieve raster
-               max_size: 500
+               max_size: 500,
+               twkb_encoding: true
           },
 
           limits: {
@@ -267,7 +268,7 @@ var config = {
             // If filename is given logs comming from analysis client  will be written
             // there, in append mode. Otherwise 'log_filename' is used. Otherwise stdout is used (default).
             // Log file will be re-opened on receiving the HUP signal
-            filename: '/tmp/analysis.log'
+            filename: 'logs/node-windshaft-analysis.log'
         },
         // Define max execution time in ms for analyses or tags
         // If analysis or tag are not found in redis this values will be used as default.
@@ -337,6 +338,12 @@ var config = {
     // X-Tiler-Profile header containing elapsed timing for various
     // steps taken for producing the response.
     ,useProfiler:true
+    ,serverMetadata: {
+      cdn_url: {
+        http: undefined,
+        https: undefined
+      }
+    }
     // Settings for the health check available at /health
     ,health: {
       enabled: false,
diff --git a/config/environments/production.js.example b/config/environments/production.js.example
index d601dbc5..8e071acf 100644
--- a/config/environments/production.js.example
+++ b/config/environments/production.js.example
@@ -61,13 +61,13 @@ var config = {
 
     // Resource URLs expose endpoints to request/retrieve metadata associated to Maps: dataviews, analysis node status.
     //
-    // This URLs depend on how `base_url_detached` and `user_from_host` are configured: the application can be
+    // This URLs depend on how `routes` and `user_from_host` are configured: the application can be
     // configured to accept request with the {user} in the header host or in the request path.
     // It also might depend on the configured cdn_url via `serverMetadata.cdn_url`.
     //
     // This template allows to make the endpoints generation more flexible, the template exposes the following params:
     //  1. {{=it.cdn_url}}: will be used when `serverMetadata.cdn_url` exists.
-    //  2. {{=it.user}}: will use the username as extraced from `user_from_host` or `base_url_detached`.
+    //  2. {{=it.user}}: will use the username as extraced from `user_from_host` or `routes`.
     //  3. {{=it.port}}: will use the `port` from this very same configuration file.
     ,resources_url_templates: {
         http: 'http://{{=it.cdn_url}}/{{=it.user}}/api/v1/map',
@@ -130,15 +130,7 @@ var config = {
         //If enabled, MVTs will be generated with PostGIS directly, instead of using Mapnik,
         //PostGIS 2.4 is required for this to work
         //If disabled it will use Mapnik MVT generation
-        usePostGIS: false,
-        dbPoolParams: {
-              // maximum number of resources to create at any given time
-              size: 16,
-              // max milliseconds a resource can go unused before it should be destroyed
-              idleTimeout: 3000,
-              // frequency to check for idle resources
-              reapInterval: 1000
-          }
+        usePostGIS: false
       },
       mapnik: {
           // The size of the pool of internal mapnik backend
@@ -212,7 +204,8 @@ var config = {
                persist_connection: false,
                simplify_geometries: true,
                use_overviews: true, // use overviews to retrieve raster
-               max_size: 500
+               max_size: 500,
+               twkb_encoding: true
           },
 
           limits: {
@@ -275,7 +268,7 @@ var config = {
             // If filename is given logs comming from analysis client  will be written
             // there, in append mode. Otherwise 'log_filename' is used. Otherwise stdout is used (default).
             // Log file will be re-opened on receiving the HUP signal
-            filename: 'logs/analysis.log'
+            filename: 'logs/node-windshaft-analysis.log'
         },
         // Define max execution time in ms for analyses or tags
         // If analysis or tag are not found in redis this values will be used as default.
diff --git a/config/environments/staging.js.example b/config/environments/staging.js.example
index 76260b8f..60301a94 100644
--- a/config/environments/staging.js.example
+++ b/config/environments/staging.js.example
@@ -61,16 +61,16 @@ var config = {
 
     // Resource URLs expose endpoints to request/retrieve metadata associated to Maps: dataviews, analysis node status.
     //
-    // This URLs depend on how `base_url_detached` and `user_from_host` are configured: the application can be
+    // This URLs depend on how `routes` and `user_from_host` are configured: the application can be
     // configured to accept request with the {user} in the header host or in the request path.
     // It also might depend on the configured cdn_url via `serverMetadata.cdn_url`.
     //
     // This template allows to make the endpoints generation more flexible, the template exposes the following params:
     //  1. {{=it.cdn_url}}: will be used when `serverMetadata.cdn_url` exists.
-    //  2. {{=it.user}}: will use the username as extraced from `user_from_host` or `base_url_detached`.
+    //  2. {{=it.user}}: will use the username as extraced from `user_from_host` or `routes`.
     //  3. {{=it.port}}: will use the `port` from this very same configuration file.
     ,resources_url_templates: {
-        http: 'http://{{=it.user}}.localhost.lan:{{=it.port}}/api/v1/map',
+        http: 'http://{{=it.cdn_url}}/{{=it.user}}/api/v1/map',
         https: 'https://{{=it.cdn_url}}/{{=it.user}}/api/v1/map'
     }
 
@@ -88,7 +88,7 @@ var config = {
     ,socket_timeout: 600000
     ,enable_cors: true
     ,cache_enabled: true
-    ,log_format: ':req[X-Real-IP] :method :req[Host]:url :status :response-time ms (:res[X-Tiler-Profiler]) -> :res[Content-Type] (:res[X-Tiler-Errors])'
+    ,log_format: ':req[X-Real-IP] :method :req[Host]:url :status :response-time ms -> :res[Content-Type] (:res[X-Tiler-Profiler]) (:res[X-Tiler-Errors])'
     // If log_filename is given logs will be written
     // there, in append mode. Otherwise stdout is used (default).
     // Log file will be re-opened on receiving the HUP signal
@@ -118,7 +118,7 @@ var config = {
     ,statsd: {
         host: 'localhost',
         port: 8125,
-        prefix: 'stage.:host.',
+        prefix: 'stage.:host.', // could be hostname, better not containing dots
         cacheDns: true
         // support all allowed node-statsd options
     }
@@ -204,7 +204,8 @@ var config = {
                persist_connection: false,
                simplify_geometries: true,
                use_overviews: true, // use overviews to retrieve raster
-               max_size: 500
+               max_size: 500,
+               twkb_encoding: true
           },
 
           limits: {
@@ -267,7 +268,7 @@ var config = {
             // If filename is given logs comming from analysis client  will be written
             // there, in append mode. Otherwise 'log_filename' is used. Otherwise stdout is used (default).
             // Log file will be re-opened on receiving the HUP signal
-            filename: 'logs/analysis.log'
+            filename: 'logs/node-windshaft-analysis.log'
         },
         // Define max execution time in ms for analyses or tags
         // If analysis or tag are not found in redis this values will be used as default.
@@ -345,7 +346,7 @@ var config = {
     }
     // Settings for the health check available at /health
     ,health: {
-      enabled: false,
+      enabled: true,
       username: 'localhost',
       z: 0,
       x: 0,
diff --git a/config/environments/test.js.example b/config/environments/test.js.example
index 0dd475fe..d106995e 100644
--- a/config/environments/test.js.example
+++ b/config/environments/test.js.example
@@ -61,16 +61,17 @@ var config = {
 
     // Resource URLs expose endpoints to request/retrieve metadata associated to Maps: dataviews, analysis node status.
     //
-    // This URLs depend on how `base_url_detached` and `user_from_host` are configured: the application can be
+    // This URLs depend on how `routes` and `user_from_host` are configured: the application can be
     // configured to accept request with the {user} in the header host or in the request path.
     // It also might depend on the configured cdn_url via `serverMetadata.cdn_url`.
     //
     // This template allows to make the endpoints generation more flexible, the template exposes the following params:
     //  1. {{=it.cdn_url}}: will be used when `serverMetadata.cdn_url` exists.
-    //  2. {{=it.user}}: will use the username as extraced from `user_from_host` or `base_url_detached`.
+    //  2. {{=it.user}}: will use the username as extraced from `user_from_host` or `routes`.
     //  3. {{=it.port}}: will use the `port` from this very same configuration file.
     ,resources_url_templates: {
-        http: 'http://{{=it.user}}.localhost.lan:{{=it.port}}/api/v1/map'
+        http: 'http://{{=it.user}}.localhost.lan:{{=it.port}}/api/v1/map',
+        https: 'https://{{=it.user}}.localhost.lan:{{=it.port}}/api/v1/map'
     }
 
     // Maximum number of connections for one process
@@ -87,11 +88,11 @@ var config = {
     ,socket_timeout: 600000
     ,enable_cors: true
     ,cache_enabled: false
-    ,log_format: '[:date] :req[X-Real-IP] :method :req[Host]:url :status :response-time ms -> :res[Content-Type] (:res[X-Tiler-Profiler]) (:res[X-Tiler-Errors])'
+    ,log_format: ':req[X-Real-IP] :method :req[Host]:url :status :response-time ms -> :res[Content-Type] (:res[X-Tiler-Profiler]) (:res[X-Tiler-Errors])'
     // If log_filename is given logs will be written
     // there, in append mode. Otherwise stdout is used (default).
     // Log file will be re-opened on receiving the HUP signal
-    //,log_filename: 'logs/node-windshaft.log'
+    ,log_filename: '/tmp/node-windshaft.log'
     // Templated database username for authorized user
     // Supported labels: 'user_id' (read from redis)
     ,postgres_auth_user: 'test_windshaft_cartodb_user_<%= user_id %>'
@@ -99,8 +100,6 @@ var config = {
     // Supported labels: 'user_id', 'user_password' (both read from redis)
     ,postgres_auth_pass: 'test_windshaft_cartodb_user_<%= user_id %>_pass'
     ,postgres: {
-        // Parameters to pass to datasource plugin of mapnik
-        // See http://github.com/mapnik/mapnik/wiki/PostGIS
         user: "test_windshaft_publicuser",
         password: "public",
         host: '127.0.0.1',
@@ -114,12 +113,12 @@ var config = {
             reapInterval: 1000
         }
     }
-    ,mapnik_version: ''
+    ,mapnik_version: undefined
     ,mapnik_tile_format: 'png8:m=h'
     ,statsd: {
         host: 'localhost',
         port: 8125,
-        prefix: 'test.:host.',
+        prefix: 'test.:host.', // could be hostname, better not containing dots
         cacheDns: true
         // support all allowed node-statsd options
     }
@@ -131,15 +130,7 @@ var config = {
         //If enabled, MVTs will be generated with PostGIS directly, instead of using Mapnik,
         //PostGIS 2.4 is required for this to work
         //If disabled it will use Mapnik MVT generation
-        usePostGIS: false,
-        dbPoolParams: {
-              // maximum number of resources to create at any given time
-              size: 16,
-              // max milliseconds a resource can go unused before it should be destroyed
-              idleTimeout: 3000,
-              // frequency to check for idle resources
-              reapInterval: 1000
-          }
+        usePostGIS: false
       },
       mapnik: {
           // The size of the pool of internal mapnik backend
@@ -213,7 +204,8 @@ var config = {
                persist_connection: false,
                simplify_geometries: true,
                use_overviews: true, // use overviews to retrieve raster
-               max_size: 500
+               max_size: 500,
+               twkb_encoding: false
           },
 
           limits: {
@@ -231,10 +223,15 @@ var config = {
 
           // If enabled Mapnik will reuse the features retrieved from the database
           // instead of requesting them once per style inside a layer
-          'cache-features': true,
+          'cache-features': false,
 
           // Require metrics to the renderer
-          metrics: false
+          metrics: false,
+
+          // Options for markers attributes, ellipses and images caches
+          markers_symbolizer_caches: {
+              disabled: false
+          }
       },
       http: {
           timeout: 2000, // the timeout in ms for a http tile request
@@ -273,7 +270,7 @@ var config = {
             // If filename is given logs comming from analysis client  will be written
             // there, in append mode. Otherwise 'log_filename' is used. Otherwise stdout is used (default).
             // Log file will be re-opened on receiving the HUP signal
-            filename: 'node-windshaft.log'
+            filename: '/tmp/node-windshaft-analysis.log'
         },
         // Define max execution time in ms for analyses or tags
         // If analysis or tag are not found in redis this values will be used as default.
@@ -343,6 +340,12 @@ var config = {
     // X-Tiler-Profile header containing elapsed timing for various
     // steps taken for producing the response.
     ,useProfiler:true
+    ,serverMetadata: {
+      cdn_url: {
+        http: undefined,
+        https: undefined
+      }
+    }
     // Settings for the health check available at /health
     ,health: {
       enabled: false,
diff --git a/docs/static_maps_api.md b/docs/static_maps_api.md
index 34e4e907..554f892d 100644
--- a/docs/static_maps_api.md
+++ b/docs/static_maps_api.md
@@ -11,7 +11,7 @@ Begin by instantiating either a Named or Anonymous Map using the `layergroupid t
 #### Definition
 
 ```bash
-GET /api/v1/map/static/center/{token}/{z}/{lat}/{lng}/{width}/{height}.{format}
+GET /api/v1/map/static/center/{token}/{z}/{lat}/{lng}/{width}/{height}.{format}{{?}extra_options}
 ```
 
 #### Params
@@ -58,6 +58,9 @@ Note: you can see this endpoint as
 GET /api/v1/map/static/bbox/{token}/{west},{south},{east},{north}/{width}/{height}.{format}`
 ```
 
+#### Extra options
+ * Layer: List of layers to be shown in the image (by default `all`), for example `?layer=0,1`.
+
 ### Named Map
 
 #### Definition
diff --git a/lib/cartodb/api/middlewares/map-store-map-config-provider.js b/lib/cartodb/api/middlewares/map-store-map-config-provider.js
index 58cdb79e..a5b4b1f6 100644
--- a/lib/cartodb/api/middlewares/map-store-map-config-provider.js
+++ b/lib/cartodb/api/middlewares/map-store-map-config-provider.js
@@ -10,12 +10,13 @@ module.exports = function createMapStoreMapConfigProvider (
     return function createMapStoreMapConfigProviderMiddleware (req, res, next) {
         const { user, token, cache_buster, api_key } = res.locals;
         const { dbuser, dbname, dbpassword, dbhost, dbport } = res.locals;
-        const { layer, z, x, y, scale_factor, format } = req.params;
+        const { layer: layerFromParams, z, x, y, scale_factor, format } = req.params;
+        const { layer: layerFromQuery } = req.query;
 
         const params = {
             user, token, cache_buster, api_key,
             dbuser, dbname, dbpassword, dbhost, dbport,
-            layer, z, x, y, scale_factor, format
+            layer: (layerFromQuery || layerFromParams), z, x, y, scale_factor, format
         };
 
         if (forcedFormat) {
diff --git a/lib/cartodb/server_options.js b/lib/cartodb/server_options.js
index dff1280e..78036f0d 100644
--- a/lib/cartodb/server_options.js
+++ b/lib/cartodb/server_options.js
@@ -1,4 +1,4 @@
-var os = require('os');
+const fqdn = require('@carto/fqdn-sync');
 var _ = require('underscore');
 var OverviewsQueryRewriter = require('./utils/overviews_query_rewriter');
 
@@ -36,8 +36,7 @@ rendererConfig.mapnik.queryRewriter = overviewsQueryRewriter;
 // See https://github.com/CartoDB/Windshaft-cartodb/issues/153
 if (global.environment.statsd) {
     if (global.environment.statsd.prefix) {
-        var host_token = os.hostname().split('.').reverse().join('.');
-        global.environment.statsd.prefix = global.environment.statsd.prefix.replace(/:host/, host_token);
+        global.environment.statsd.prefix = global.environment.statsd.prefix.replace(/:host/, fqdn.reverse());
     }
 }
 
diff --git a/package.json b/package.json
index 7216fab2..6bb21e49 100644
--- a/package.json
+++ b/package.json
@@ -24,6 +24,7 @@
     "Simon Martin <simon@carto.com>"
   ],
   "dependencies": {
+    "@carto/fqdn-sync": "0.2.2",
     "basic-auth": "2.0.0",
     "body-parser": "1.18.3",
     "camshaft": "0.61.10",
diff --git a/test/acceptance/analysis/named-maps.js b/test/acceptance/analysis/named-maps.js
index 98316d2d..5172b110 100644
--- a/test/acceptance/analysis/named-maps.js
+++ b/test/acceptance/analysis/named-maps.js
@@ -261,6 +261,27 @@ describe('named-maps analysis', function() {
             );
         });
 
+        it('should fail to retrieve static map preview via layergroup ' +
+           'when filtering by invalid layers', function(done) {
+            assert.response(
+                server,
+                {
+                    url: '/api/v1/map/static/center/' + layergroupid + '/4/42/-3/320/240.png?layer=1',
+                    method: 'GET',
+                    encoding: 'binary',
+                    headers: {
+                        host: username
+                    }
+                },
+                {
+                    status: 400
+                },
+                function(res, err) {
+                    done(err);
+                }
+            );
+        });
+
         it('should return and an error requesting unsupported image format', function(done) {
             assert.response(
                 server,
diff --git a/test/support/test-client.js b/test/support/test-client.js
index 2a5840f5..db014c9a 100644
--- a/test/support/test-client.js
+++ b/test/support/test-client.js
@@ -1268,9 +1268,6 @@ TestClient.prototype.setUserDatabaseTimeoutLimit = function (timeoutLimit, callb
     const dbuser = _.template(global.environment.postgres_auth_user, { user_id: 1 });
     const publicuser = global.environment.postgres.user;
 
-    // we need to guarantee all new connections have the new settings
-    helper.cleanPGPoolConnections();
-
     const psql = new PSQL({
         user: 'postgres',
         dbname: dbname,
@@ -1278,6 +1275,9 @@ TestClient.prototype.setUserDatabaseTimeoutLimit = function (timeoutLimit, callb
         port: global.environment.postgres.port
     });
 
+    // we need to guarantee all new connections have the new settings
+    psql.end();
+
     step(
         function configureTimeouts () {
             const timeoutSQLs = [
diff --git a/test/support/test_helper.js b/test/support/test_helper.js
index e381e34d..5770a42f 100644
--- a/test/support/test_helper.js
+++ b/test/support/test_helper.js
@@ -13,7 +13,6 @@ var lzmaWorker = new LZMA();
 
 var redis = require('redis');
 var log4js = require('log4js');
-var pg = require('pg');
 const setICUEnvVariable = require('../../lib/cartodb/utils/icu_data_env_setter');
 
 // set environment specific variables
@@ -147,11 +146,6 @@ afterEach(function(done) {
     });
 });
 
-function cleanPGPoolConnections () {
-    // TODO: this method will be replaced by psql.end
-    pg.end();
-}
-
 function deleteRedisKeys(keysToDelete, callback) {
 
     if (Object.keys(keysToDelete).length === 0) {
@@ -214,6 +208,5 @@ module.exports = {
   checkSurrogateKey: checkSurrogateKey,
   checkCache: checkCache,
   rmdirRecursiveSync: rmdirRecursiveSync,
-  configureMetadata,
-  cleanPGPoolConnections
+  configureMetadata
 };
diff --git a/yarn.lock b/yarn.lock
index 593866df..84ec39ca 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,6 +2,10 @@
 # yarn lockfile v1
 
 
+"@carto/fqdn-sync@0.2.2":
+  version "0.2.2"
+  resolved "https://registry.yarnpkg.com/@carto/fqdn-sync/-/fqdn-sync-0.2.2.tgz#cd7c645ed66690a09249b554d254a0f53963b2dc"
+
 "@carto/mapnik@3.6.2-carto.10":
   version "3.6.2-carto.10"
   resolved "https://registry.yarnpkg.com/@carto/mapnik/-/mapnik-3.6.2-carto.10.tgz#a97c951dcdac09d0eb35b3ea71e5eeaa206c1af6"