diff --git a/sources/tech/20190416 Building a DNS-as-a-service with OpenStack Designate.md b/sources/tech/20190416 Building a DNS-as-a-service with OpenStack Designate.md
deleted file mode 100644
index 287d0099df..0000000000
--- a/sources/tech/20190416 Building a DNS-as-a-service with OpenStack Designate.md	
+++ /dev/null
@@ -1,263 +0,0 @@
-[#]: collector: (lujun9972)
-[#]: translator: (wxy)
-[#]: reviewer: ( )
-[#]: publisher: ( )
-[#]: url: ( )
-[#]: subject: (Building a DNS-as-a-service with OpenStack Designate)
-[#]: via: (https://opensource.com/article/19/4/getting-started-openstack-designate)
-[#]: author: (Amjad Yaseen https://opensource.com/users/ayaseen)
-
-Building a DNS-as-a-service with OpenStack Designate
-======
-Learn how to install and configure Designate, a multi-tenant
-DNS-as-a-service (DNSaaS) for OpenStack.
-![Command line prompt][1]
-
-[Designate][2] is a multi-tenant DNS-as-a-service that includes a REST API for domain and record management, a framework for integration with [Neutron][3], and integration support for Bind9.
-
-You would want to consider a DNSaaS for the following:
-
-  * A clean REST API for managing zones and records
-  * Automatic records generated (with OpenStack integration)
-  * Support for multiple authoritative name servers
-  * Hosting multiple projects/organizations
-
-
-
-![Designate's architecture][4]
-
-This article explains how to manually install and configure the latest release of Designate service on CentOS or Red Hat Enterprise Linux 7 (RHEL 7), but you can use the same configuration on other distributions.
-
-### Install Designate on OpenStack
-
-I have Ansible roles for bind and Designate that demonstrate the setup in my [GitHub repository][5].
-
-This setup presumes bind service is external (even though you can install bind locally) on the OpenStack controller node.
-
-  1. Install Designate's packages and bind (on OpenStack controller): [code]`# yum install openstack-designate-* bind bind-utils -y`
-```
-  2. Create the Designate database and user: [code] MariaDB [(none)]> CREATE DATABASE designate CHARACTER SET utf8 COLLATE utf8_general_ci;
-
-MariaDB [(none)]> GRANT ALL PRIVILEGES ON designate.* TO \
-'designate'@'localhost' IDENTIFIED BY 'rhlab123';
-
-MariaDB [(none)]> GRANT ALL PRIVILEGES ON designate.* TO 'designate'@'%' \
-IDENTIFIED BY 'rhlab123';
-```
-
-
-
-
-Note: Bind packages must be installed on the controller side for Remote Name Daemon Control (RNDC) to function properly.
-
-### Configure bind (DNS server)
-
-  1. Generate RNDC files: [code] rndc-confgen -a -k designate -c /etc/rndc.key -r /dev/urandom
-
-cat <<EOF> etcrndc.conf
-include "/etc/rndc.key";
-options {
-default-key "designate";
-default-server {{ DNS_SERVER_IP }};
-default-port 953;
-};
-EOF 
-```
-  2. Add the following into **named.conf** : [code]`include "/etc/rndc.key"; controls { inet {{ DNS_SERVER_IP }} allow { localhost;{{ CONTROLLER_SERVER_IP }}; } keys { "designate"; }; };`[/code] In the **option** section, add: [code] options {
-...
-allow-new-zones yes;
-request-ixfr no;
-listen-on port 53 { any; };
-recursion no;
-allow-query { 127.0.0.1; {{ CONTROLLER_SERVER_IP }}; };
-}; [/code] Add the right permissions: [code] chown named:named /etc/rndc.key
-chown named:named /etc/rndc.conf
-chmod 600 /etc/rndc.key
-chown -v root:named /etc/named.conf
-chmod g+w /var/named
-
-# systemctl restart named
-# setsebool named_write_master_zones 1
-```
-
-  3. Push **rndc.key** and **rndc.conf** into the OpenStack controller: [code]`# scp -r /etc/rndc* {{ CONTROLLER_SERVER_IP }}:/etc/`
-```
-## Create OpenStack Designate service and endpoints
-
-Enter:
-```
-
-
-# openstack user create --domain default --password-prompt designate
-# openstack role add --project services --user designate admin
-# openstack service create --name designate --description "DNS" dns
-
-# openstack endpoint create --region RegionOne dns public http://{{ CONTROLLER_SERVER_IP }}:9001/
-# openstack endpoint create --region RegionOne dns internal http://{{ CONTROLLER_SERVER_IP }}:9001/
-# openstack endpoint create --region RegionOne dns admin http://{{ CONTROLLER_SERVER_IP }}:9001/
-
-```
-## Configure Designate service
-
-  1. Edit **/etc/designate/designate.conf** :
-    * In the **[service:api]** section, configure **auth_strategy** : [code] [service:api]
-listen = 0.0.0.0:9001
-auth_strategy = keystone
-api_base_uri = http://{{ CONTROLLER_SERVER_IP }}:9001/
-enable_api_v2 = True
-enabled_extensions_v2 = quotas, reports
-```
-    * In the **[keystone_authtoken]** section, configure the following options: [code] [keystone_authtoken]
-auth_type = password
-username = designate
-password = rhlab123
-project_name = service
-project_domain_name = Default
-user_domain_name = Default
-www_authenticate_uri = http://{{ CONTROLLER_SERVER_IP }}:5000/
-auth_url = http://{{ CONTROLLER_SERVER_IP }}:5000/ 
-```
-    * In the **[service:worker]** section, enable the worker model: [code] enabled = True
-notify = True
-```
-    * In the **[storage:sqlalchemy]** section, configure database access: [code] [storage:sqlalchemy]
-connection = mysql+pymysql://designate:rhlab123@{{ CONTROLLER_SERVER_IP }}/designate 
-```
-* Populate the Designate database: [code]`# su -s /bin/sh -c "designate-manage database sync" designate`
-```
-
-
-  2. Create Designate's **pools.yaml** file (has target and bind details):
-    * Edit **/etc/designate/pools.yaml** : [code] - name: default
-# The name is immutable. There will be no option to change the name after
-# creation and the only way will to change it will be to delete it
-# (and all zones associated with it) and recreate it.
-description: Default Pool
-
-attributes: {}
-
-# List out the NS records for zones hosted within this pool
-# This should be a record that is created outside of designate, that
-# points to the public IP of the controller node.
-ns_records:
-\- hostname: {{Controller_FQDN}}. # Thisis mDNS
-priority: 1
-
-# List out the nameservers for this pool. These are the actual BIND servers.
-# We use these to verify changes have propagated to all nameservers.
-nameservers:
-\- host: {{ DNS_SERVER_IP }}
-port: 53
-
-# List out the targets for this pool. For BIND there will be one
-# entry for each BIND server, as we have to run rndc command on each server
-targets:
-\- type: bind9
-description: BIND9 Server 1
-
-# List out the designate-mdns servers from which BIND servers should
-# request zone transfers (AXFRs) from.
-# This should be the IP of the controller node.
-# If you have multiple controllers you can add multiple masters
-# by running designate-mdns on them, and adding them here.
-masters:
-\- host: {{ CONTROLLER_SERVER_IP }}
-port: 5354
-
-# BIND Configuration options
-options:
-host: {{ DNS_SERVER_IP }}
-port: 53
-rndc_host: {{ DNS_SERVER_IP }}
-rndc_port: 953
-rndc_key_file: /etc/rndc.key
-rndc_config_file: /etc/rndc.conf 
-```
-* Populate Designate's pools: [code]`su -s /bin/sh -c "designate-manage pool update" designate`
-```
-
-
-
-  3. Start Designate central and API services: [code]`systemctl enable --now designate-central designate-api`
-```
-  4. Verify Designate's services are up: [code] # openstack dns service list
-
-+--------------+--------+-------+--------------+
-| service_name | status | stats | capabilities |
-+--------------+--------+-------+--------------+
-| central | UP | - | - |
-| api | UP | - | - |
-| mdns | UP | - | - |
-| worker | UP | - | - |
-| producer | UP | - | - |
-+--------------+--------+-------+--------------+
-```
-
-
-
-
-### Configure OpenStack Neutron with external DNS
-
-  1. Configure iptables for Designate services: [code] # iptables -I INPUT -p tcp -m multiport --dports 9001 -m comment --comment "designate incoming" -j ACCEPT
-
-# iptables -I INPUT -p tcp -m multiport --dports 5354 -m comment --comment "Designate mdns incoming" -j ACCEPT
-
-# iptables -I INPUT -p tcp -m multiport --dports 53 -m comment --comment "bind incoming" -j ACCEPT
-
-
-# iptables -I INPUT -p udp -m multiport --dports 53 -m comment --comment "bind/powerdns incoming" -j ACCEPT
-
-# iptables -I INPUT -p tcp -m multiport --dports 953 -m comment --comment "rndc incoming - bind only" -j ACCEPT
-
-# service iptables save; service iptables restart
-# setsebool named_write_master_zones 1 
-```
-2. Edit the **[default]** section of **/etc/neutron/neutron.conf** : [code]`external_dns_driver = designate`
-```
-
-  3. Add the **[designate]** section in **/_etc/_neutron/neutron.conf** : [code] [designate]
-url = http://{{ CONTROLLER_SERVER_IP }}:9001/v2 ## This end point of designate
-auth_type = password
-auth_url = http://{{ CONTROLLER_SERVER_IP }}:5000
-username = designate
-password = rhlab123
-project_name = services
-project_domain_name = Default
-user_domain_name = Default
-allow_reverse_dns_lookup = True
-ipv4_ptr_zone_prefix_size = 24
-ipv6_ptr_zone_prefix_size = 116 
-```
-  4. Edit **dns_domain** in **neutron.conf** : [code] dns_domain = rhlab.dev.
-
-# systemctl restart neutron-*
-```
-
-  5. Add **dns** to the list of Modular Layer 2 (ML2) drivers in **/etc/neutron/plugins/ml2/ml2_conf.ini** : [code]`extension_drivers=port_security,qos,dns`
-```
-6. Add **zone** in Designate: [code]`# openstack zone create –email=admin@rhlab.dev rhlab.dev.`[/code] Add a new record in **zone rhlab.dev** : [code]`# openstack recordset create --record '192.168.1.230' --type A rhlab.dev. Test`
-```
-
-
-
-
-Designate should now be installed and configured.
-
---------------------------------------------------------------------------------
-
-via: https://opensource.com/article/19/4/getting-started-openstack-designate
-
-作者：[Amjad Yaseen][a]
-选题：[lujun9972][b]
-译者：[译者ID](https://github.com/译者ID)
-校对：[校对者ID](https://github.com/校对者ID)
-
-本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
-
-[a]: https://opensource.com/users/ayaseen
-[b]: https://github.com/lujun9972
-[1]: https://opensource.com/sites/default/files/styles/image-full-size/public/lead-images/command_line_prompt.png?itok=wbGiJ_yg (Command line prompt)
-[2]: https://docs.openstack.org/designate/latest/
-[3]: /article/19/3/openstack-neutron
-[4]: https://opensource.com/sites/default/files/uploads/openstack_designate_architecture.png (Designate's architecture)
-[5]: https://github.com/ayaseen/designate
diff --git a/translated/tech/20190416 Building a DNS-as-a-service with OpenStack Designate.md b/translated/tech/20190416 Building a DNS-as-a-service with OpenStack Designate.md
new file mode 100644
index 0000000000..136aaffde4
--- /dev/null
+++ b/translated/tech/20190416 Building a DNS-as-a-service with OpenStack Designate.md	
@@ -0,0 +1,347 @@
+[#]: collector: (lujun9972)
+[#]: translator: (wxy)
+[#]: reviewer: ( )
+[#]: publisher: ( )
+[#]: url: ( )
+[#]: subject: (Building a DNS-as-a-service with OpenStack Designate)
+[#]: via: (https://opensource.com/article/19/4/getting-started-openstack-designate)
+[#]: author: (Amjad Yaseen https://opensource.com/users/ayaseen)
+
+用 OpenStack Designate 构建一个 DNS 即服务（DNSaaS）
+======
+
+> 学习如何安装和配置 Designate，这是一个 OpenStack 的多租户 DNS 即服务（DNSaaS）。
+
+![Command line prompt][1]
+
+[Designate][2] 是一个多租户的 DNS 即服务，它包括一个用于域名和记录管理的 REST API 和集成了 [Neutron][3] 的框架，并集成支持了 Bind9。
+
+DNSaaS 可以提供：
+
+  * 一个管理区域和记录的干净利落的 REST API
+  * 自动生成记录（集成 OpenStack）
+  * 支持多个授权名字服务器
+  * 可以托管多个项目/组织
+
+![Designate's architecture][4]
+
+这篇文章解释了如何在 CentOS 和 RHEL 上手动安装和配置 Designate 的最新版本，但是这个相同的配置你也可以用在其它发行版上。
+
+### 在 OpenStack 上安装 Designate
+
+在我的 [GitHub 仓库][5]里我已经放了 Ansible 的 bind 和 Designate 的角色的示范设置。
+
+这个设置假定 bing 服务是安装 OpenStack 控制器节点之外（即使你可以在本地安装 bind）。
+
+1、在 OpenStack 控制节点上安装 Designate 和 bind 软件包：
+
+```
+# yum install openstack-designate-* bind bind-utils -y
+```
+
+2、创建 Designate 数据库和用户：
+
+```
+MariaDB [(none)]> CREATE DATABASE designate CHARACTER SET utf8 COLLATE utf8_general_ci;
+       
+MariaDB [(none)]> GRANT ALL PRIVILEGES ON designate.* TO \
+'designate'@'localhost' IDENTIFIED BY 'rhlab123';
+
+MariaDB [(none)]> GRANT ALL PRIVILEGES ON designate.* TO 'designate'@'%' \
+IDENTIFIED BY 'rhlab123';
+```
+
+注意：bind 包必须安装在控制节点之外才能使<ruby>远程名字服务控制<rt>Remote Name Daemon Control</rt></ruby>（RNDC） 功能正常。
+
+### 配置 bind（DNS 服务器）
+
+1、生成 RNDC 文件：
+
+```
+rndc-confgen -a -k designate -c /etc/rndc.key -r /dev/urandom
+
+cat <<EOF> etcrndc.conf
+include "/etc/rndc.key";
+options {
+  default-key "designate";
+  default-server {{ DNS_SERVER_IP }};
+  default-port 953;
+};
+EOF
+```
+
+2、将下列配置添加到 `named.conf`：
+
+```
+include "/etc/rndc.key"; 
+controls {
+  inet {{ DNS_SERVER_IP }} allow { localhost;{{ CONTROLLER_SERVER_IP }}; } keys { "designate"; };
+};
+```
+
+在 `option` 一节中，添加：
+
+```
+options {
+  ...
+  allow-new-zones yes;
+  request-ixfr no;
+  listen-on port 53 { any; };
+  recursion no;
+  allow-query { 127.0.0.1; {{ CONTROLLER_SERVER_IP }}; };
+};
+```
+
+添加正确的权限：
+
+```
+chown named:named /etc/rndc.key
+chown named:named /etc/rndc.conf
+chmod 600 /etc/rndc.key
+chown -v root:named /etc/named.conf
+chmod g+w /var/named
+
+# systemctl restart named
+# setsebool named_write_master_zones 1
+```
+
+3、推送 `rndc.key` 和 `rndc.conf` 到 OpenStack 控制节点：
+
+```
+# scp -r /etc/rndc* {{ CONTROLLER_SERVER_IP }}:/etc/
+```
+
+### 创建 OpenStack Designate 服务和端点
+
+输入：
+
+```
+# openstack user create --domain default --password-prompt designate
+# openstack role add --project services --user designate admin
+# openstack service create --name designate --description "DNS" dns
+
+# openstack endpoint create --region RegionOne dns public http://{{ CONTROLLER_SERVER_IP }}:9001/
+# openstack endpoint create --region RegionOne dns internal http://{{ CONTROLLER_SERVER_IP }}:9001/  
+# openstack endpoint create --region RegionOne dns admin http://{{ CONTROLLER_SERVER_IP }}:9001/
+```
+
+### 配置 Designate 服务
+
+1、编辑 `/etc/designate/designate.conf`：
+
+在 `[service:api]` 节配置 `auth_strategy`：
+
+```
+[service:api]
+listen = 0.0.0.0:9001
+auth_strategy = keystone
+api_base_uri = http://{{ CONTROLLER_SERVER_IP }}:9001/
+enable_api_v2 = True
+enabled_extensions_v2 = quotas, reports
+```
+
+在 `[keystone_authtoken]` 节配置下列选项：
+
+```
+[keystone_authtoken]
+auth_type = password
+username = designate
+password = rhlab123
+project_name = service
+project_domain_name = Default
+user_domain_name = Default
+www_authenticate_uri = http://{{ CONTROLLER_SERVER_IP }}:5000/
+auth_url = http://{{ CONTROLLER_SERVER_IP }}:5000/ 
+```
+
+在 `[service:worker]` 节，启用 worker 模型：
+
+```
+enabled = True
+notify = True
+```
+
+在 `[storage:sqlalchemy]` 节，配置数据库访问：
+
+```
+[storage:sqlalchemy]
+connection = mysql+pymysql://designate:rhlab123@{{ CONTROLLER_SERVER_IP }}/designate
+```
+
+填充 Designate 数据库：
+
+```
+# su -s /bin/sh -c "designate-manage database sync" designate
+```
+
+2、 创建 Designate 的 `pools.yaml` 文件（包含 target 和 bind 细节）：
+
+编辑 `/etc/designate/pools.yaml`：
+
+```
+- name: default
+  # The name is immutable. There will be no option to change the name after
+  # creation and the only way will to change it will be to delete it
+  # (and all zones associated with it) and recreate it.
+  description: Default Pool
+
+  attributes: {}
+
+  # List out the NS records for zones hosted within this pool
+  # This should be a record that is created outside of designate, that
+  # points to the public IP of the controller node.
+  ns_records:
+    - hostname: {{Controller_FQDN}}. # Thisis mDNS
+      priority: 1
+
+  # List out the nameservers for this pool. These are the actual BIND servers.
+  # We use these to verify changes have propagated to all nameservers.
+  nameservers:
+    - host: {{ DNS_SERVER_IP }}
+      port: 53
+
+  # List out the targets for this pool. For BIND there will be one
+  # entry for each BIND server, as we have to run rndc command on each server
+  targets:
+    - type: bind9
+      description: BIND9 Server 1
+
+      # List out the designate-mdns servers from which BIND servers should
+      # request zone transfers (AXFRs) from.
+      # This should be the IP of the controller node.
+      # If you have multiple controllers you can add multiple masters
+      # by running designate-mdns on them, and adding them here.
+      masters:
+        - host: {{ CONTROLLER_SERVER_IP }}
+          port: 5354
+
+      # BIND Configuration options
+      options:
+        host: {{ DNS_SERVER_IP }}
+        port: 53
+        rndc_host: {{ DNS_SERVER_IP }}
+        rndc_port: 953
+        rndc_key_file: /etc/rndc.key
+        rndc_config_file: /etc/rndc.conf
+```
+
+填充 Designate 池：
+
+```
+su -s /bin/sh -c "designate-manage pool update" designate
+```
+
+3、启动 Designate 中心和 API 服务：
+
+```
+systemctl enable --now designate-central designate-api
+```
+
+4、验证 Designate 服务运行：
+
+```
+# openstack dns service list
+
++--------------+--------+-------+--------------+
+| service_name | status | stats | capabilities |
++--------------+--------+-------+--------------+
+| central      | UP     | -     | -            |
+| api          | UP     | -     | -            |
+| mdns         | UP     | -     | -            |
+| worker       | UP     | -     | -            |
+| producer     | UP     | -     | -            |
++--------------+--------+-------+--------------+
+```
+
+### 用外部 DNS 配置 OpenStack Neutron
+
+1、为 Designate 服务配置 iptables：
+
+```
+# iptables -I INPUT -p tcp -m multiport --dports 9001 -m comment --comment "designate incoming" -j ACCEPT
+       
+# iptables -I INPUT -p tcp -m multiport --dports 5354 -m comment --comment "Designate mdns incoming" -j ACCEPT
+       
+# iptables -I INPUT -p tcp -m multiport --dports 53 -m comment --comment "bind incoming" -j ACCEPT
+        
+# iptables -I INPUT -p udp -m multiport --dports 53 -m comment --comment "bind/powerdns incoming" -j ACCEPT
+       
+# iptables -I INPUT -p tcp -m multiport --dports 953 -m comment --comment "rndc incoming - bind only" -j ACCEPT
+       
+# service iptables save; service iptables restart
+# setsebool named_write_master_zones 1
+```
+
+2、 编辑 `/etc/neutron/neutron.conf` 的 `[default]` 节：
+
+```
+external_dns_driver = designate
+```
+
+3、 在 `/etc/neutron/neutron.conf` 中添加 `[designate]` 节：
+
+```
+[designate]
+url = http://{{ CONTROLLER_SERVER_IP }}:9001/v2 ## This end point of designate
+auth_type = password
+auth_url = http://{{ CONTROLLER_SERVER_IP }}:5000
+username = designate
+password = rhlab123
+project_name = services
+project_domain_name = Default
+user_domain_name = Default
+allow_reverse_dns_lookup = True
+ipv4_ptr_zone_prefix_size = 24
+ipv6_ptr_zone_prefix_size = 116 
+```
+
+4、编辑 `neutron.conf` 的 `dns_domain`：
+
+```
+dns_domain = rhlab.dev.
+```
+
+重启： 
+
+```
+# systemctl restart neutron-*
+```
+
+5、在 `/etc/neutron/plugins/ml2/ml2_conf.ini` 中的组成层 2（ML2）中添加 `dns`：
+
+```
+extension_drivers=port_security,qos,dns
+```
+
+6、在 Designate 中添加区域：
+
+```
+# openstack zone create –email=admin@rhlab.dev rhlab.dev.
+```
+
+在 `rhlab.dev` 区域中添加记录：
+
+```
+# openstack recordset create --record '192.168.1.230' --type A rhlab.dev. Test
+```
+
+Designate 现在就安装和配置好了。
+
+--------------------------------------------------------------------------------
+
+via: https://opensource.com/article/19/4/getting-started-openstack-designate
+
+作者：[Amjad Yaseen][a]
+选题：[lujun9972][b]
+译者：[wxy](https://github.com/wxy)
+校对：[校对者ID](https://github.com/校对者ID)
+
+本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
+
+[a]: https://opensource.com/users/ayaseen
+[b]: https://github.com/lujun9972
+[1]: https://opensource.com/sites/default/files/styles/image-full-size/public/lead-images/command_line_prompt.png?itok=wbGiJ_yg (Command line prompt)
+[2]: https://docs.openstack.org/designate/latest/
+[3]: /article/19/3/openstack-neutron
+[4]: https://opensource.com/sites/default/files/uploads/openstack_designate_architecture.png (Designate's architecture)
+[5]: https://github.com/ayaseen/designate