Installation, Configuration, and Upgrade Denali HF10

On this page: 

Installation, Configuration, and Upgrade

The following sections provide information related to installation, configuration, and upgrade of the SummitAI application:

Important Notes About v4.1.4 Setup and Installation

Points to be Noted During v4.1.4 Installation

  • While installing the v4.1.4 Web setup on the SummitAI Server, ensure to install English OS and English supported DB only. Furthermore, the SummitAI Proxy Data Collector service needs to be installed on the English OS Server.
  • The Web URL created on English OS Server can be accessed through the Client Machines, which have another language OS, such as English, Chinese, Japanese, and so on. This enables the end users to use the Web URL created in the English OS Server and access SummitAI Suite applications for inputting data in different languages. 
  • The SUMMIT Proxy can be installed on the Client Servers, which has other language OS, such as English, Chinese, Japanese, and so on.

Double-Byte Character Support for SummitAI IT Management Suite

To enable multi-language support for SummitAI IT Management Suite, a basic support for double-byte characters is activated. Now, the application accepts the inputs in any of the language it is typed in and stores it in the same language in the database tables. Whenever required, the data is retrieved and displayed in the respective languages on the GUI.

In the v4.1.4 release, the SummitAI application Graphical User Interface (GUI) is displayed in English. However, the end users can enter the input data or text in any of the languages, such as English, Chinese, Japanese, and so on in the text editable fields.

Note:

In v4.1.4 release, entering text in the E-mail Address and Password fields are supported only in English language. Hence, it is highly recommended to enter the data in the E-mail Address and Password fields on any of the pages for the application in English language only. While logging into the application or configuring the user details, or in any other pages within the application, wherever there is a need to enter the e-mail address and password details, ensure to enter the text in English language. If you enter the details in any other language, the Application throws an error.

Patch Update for .NET Framework 

For .NET Framework 3.5 software, Microsoft has released a patch. It is recommended to apply the .NET Framework 3.5 Service Pack 1 (MS KB 958481, 958483, 958484 patches) after the successful installation of v4.1.4 SummitAI IT Management Suite setup on the SummitAI Server. This helps to avoid occurring of unforeseen errors in the application. You can download the patch from the http://support.microsoft.com/kb/959209 link.

Note:

After the successful deployment of the patches mentioned above, please restart the IIS on SummitAI Server.

SummitAI Upgrade Steps

To upgrade the database of the SummitAI Suite from the prior version v4.1.4 hotfix to Denali HF09, do the following:

Assumptions

Before executing the database upgrade scripts, it is assumed that you have successfully installed the SummitAI Suite base version 4.1.4 hotfix or above.

Scripting

There is no impact to the JavaScript codes written using the Scripting functionality when the SummitAI application is upgraded to a later version. However, if there are changes on the Application interface in the later version where the fields referred in the JavaScript code are modified (fields removed, data type changed, etc.), there will be an impact on such JavaScript codes. Such JavaScript codes need to be validated and modified (as required).

Pre Upgrade Steps

Before you start with the database upgrade of SummitAI, we recommend that you perform the following:

  1. On the SummitAI Database Server, open the Microsoft SQL Server Management Studio tool.  Connect to the SummitAI database Instance. Take the backup of the complete SummitAI database.
  2. On the SummitAI Server, ensure that you take a backup of the folders where the attachment files are saved. In general, the attachment files are saved in the application root directory.

Application Root Directory: \\SummitWeb\<databasename>-ModuleCode-Attachments.

Example of the Attachment Files folder name is ‘summitDB-im-attachments’, where summitDB is the database name, im is the module code for Incident Management and attachments is the folder name.

Database Upgrade from v4.1.4 Hotfix To v5.7 SP5

To perform the database upgrade from v4.1.4 hotfix to v5.6, do the following:

Schema Version

Upgrade Script

Upgraded Schema Version

v4.1.4 HF

Please download the scripts from below path which having the
upgrade scripts rom v4.1.4 HF to v5.7SP5

https://summitbuild.blob.core.windows.net/common/SummitUpgradescripts_v4.1.4HF_to_v5.7SP5_B005_02Jan2019.zip

v5.7 SP5

Database Upgrade from v5.7SP5 to ALPS

To perform the database upgrade from v5.7SP5 to ALPS, do the following:

Schema Version

Upgrade Script

Upgraded Schema Version

v5.7 SP5

1.Summitupgrade_v5.7SP5_B005_02Jan2019_to_ALPS_01Apr2019.sql

ALPS

All the upgrade script files are available along with SummitAI installer files.

Upgrade Folder Path: <Summit installer CD>\Summit<version no>\UpgradeScripts\

Example: ..\\Summitv5.7 SP1UpgradeScripts\

Database Upgrade from ALPS to ALPS HF01

To perform the database upgrade from ALPS to ALPS HF01, do the following:

Schema Version

Upgrade Script

Upgraded Schema Version

ALPS

2.Summitupgrade_ALPS_01Apr2019_to_ALPS_HF01_B006_6thMay2019.sql

ALPS HF01

All the upgrade script files are available along with SummitAI installer files.

Upgrade Folder Path: <Summit installer CD>\Summit<version no>\UpgradeScripts\

Example: ..\\Summitv5.7 SP2UpgradeScripts\

Database Upgrade from ALPS HF01 to ALPS SP1

To perform the database upgrade from ALPS HF01 to ALPS SP1, do the following:

Schema Version

Upgrade Script

Upgraded Schema Version

ALPS HF01

3.Summitupgrade_ALPS_HF01_B006_6thMay2019_to_ALPS_SP1_B006_4thJune2019.sql

ALPS SP1

All the upgrade script files are available along with SummitAI installer files.

Upgrade Folder Path: <Summit installer CD>\Summit<version no>\UpgradeScripts\

Example: ..\\Summitv5.7 SP3UpgradeScripts\

Database Upgrade from ALPS SP1 to SIERRA

To perform the database upgrade from ALPS SP1 to SIERRA, do the following:

Schema Version

Upgrade Script

Upgraded Schema Version

ALPS SP1

4.Summitupgrade_ALPS_SP1_B006_4thJune2019_to_SIERRA_26thAug2019.sql

SIERRA

All the upgrade script files are available along with SummitAI installer files.

Upgrade Folder Path: <Summit installer CD>\Summit<version no>\UpgradeScripts\

Example: ..\\Summitv5.7 SP5UpgradeScripts\

Database Upgrade from SIERRA to SIERRA HF01

To perform the database upgrade from SIERRA to SIERRA HF01, do the following:

Schema Version

Upgrade Script

Upgraded Schema Version

SIERRA

5.Summitupgrade_SIERRA_26thAug2019_to_SIERRA_HF01_B002_11thOct2019.sql

SIERRA HF01

All the upgrade script files are available along with SummitAI installer files.

Upgrade Folder Path: <Summit installer CD>\Summit<version no>\UpgradeScripts\

Example: ..\\SummitAIALPSUpgradeScripts\

Database Upgrade from SIERRA HF01 to SIERRA SP1

To perform the database upgrade from SIERRA HF01 to SIERRA SP1, do the following:

Schema Version

Upgrade Script

Upgraded Schema Version

SIERRA HF01

6.Summitupgrade_SIERRA_HF01_B002_11thOct2019_to_SIERRA_SP1_B014_12thNov2019.sql

SIERRA SP1

All the upgrade script files are available along with SummitAI installer files.


Upgrade Folder Path: <Summit installer CD>\Summit<version no>\UpgradeScripts\

Example: ..\\SummitvALPSUpgradeScripts\

Database Upgrade from SIERRA SP1 to SIERRA SP1 HF01

To perform the database upgrade from SIERRA SP1 to SIERRA SP1 HF01, do the following:

Schema Version

Upgrade Script

Upgraded Schema Version

SIERRA SP1

7.Summitupgrade_SIERRA_SP1_B014_12thNov2019_to_SIERRA_SP1_HF01_B008_10thDec2019.sql

SIERRA SP1 HF01

All the upgrade script files are available along with SummitAI installer files.

Upgrade Folder Path: <Summit installer CD>\Summit<version no>\UpgradeScripts\

Example: ..\\SummitvALPSUpgradeScripts\

Database Upgrade from SIERRA SP1 HF01 to Denali

To perform the database upgrade from SIERRA SP1 HF01 to Denali, do the following:

Schema Version

Upgrade Script

Upgraded Schema Version

SIERRA SP1 HF01

8.Summitupgrade_SIERRA_SP1_HF01_B008_10thDec2019_to_DENALI_8thApr2020.sql

DENALI

All the upgrade script files are available along with SummitAI installer files.

Upgrade Folder Path: <Summit installer CD>\Summit<version no>\UpgradeScripts\

Example: ..\\SummitAISIERRAUpgradeScripts\

Database Upgrade from Denali to Denali HF01

To perform the database upgrade from Denali to Denali HF01, do the following:

Schema Version

Upgrade Script

Upgraded Schema Version

DENALI 

9.Summitupgrade_DENALI_8thApr2020_to_DENALI_HF01_B006_16thJun2020.sql

Note:

  • The upgrade steps of v5.7 SP5 HF14 B002, ALPS SP1 HF11 B005, Sierra SP1 HF04 B008, and Sierra SP1 HF05 B007 are merged with this script.
  • The above upgrade step is applicable only for the SummitAI application instances that are not enabled for GDPR. These steps are already available in the migration tool for the SummitAI application instances, which are enabled for GDPR.

DENALI HF1

All the upgrade script files are available along with SummitAI installer files.

Upgrade Folder Path: <Summit installer CD>\Summit<version no>\UpgradeScripts\

Example: ..\\SummitAISIERRAUpgradeScripts\

Database Upgrade from Denali HF01 to Denali HF02

To perform the database upgrade from Denali HF01 to Denali HF02, do the following:

Schema Version

Upgrade Script

Upgraded Schema Version

DENALI HF01 

10.Summitupgrade_DENALI_HF01_B006_16thJun2020_to_DENALI_HF02_B004_5thAug2020.sql

Note:

  • The upgrade steps of Sierra SP1 HF06 B004 are merged with this script.
  • The above upgrade step is applicable only for the SummitAI application instances that are not enabled for GDPR. These steps are already available in the migration tool for the SummitAI application instances, which are enabled for GDPR.

DENALI HF02

All the upgrade script files are available along with SummitAI installer files.

Upgrade Folder Path: <Summit installer CD>\Summit<version no>\UpgradeScripts\

Example: ..\\SummitAISIERRAUpgradeScripts\

Database Upgrade from Denali HF02 to Denali HF03

To perform the database upgrade from Denali HF02 to Denali HF03, do the following:

Schema Version

Upgrade Script

Upgraded Schema Version

DENALI HF02 

11.Summitupgrade_DENALI_HF02_B004_5thAug2020_to_DENALI_HF03_B004_1stSep2020.sql

Note:

  • The upgrade steps of SP1 HF07 B003 and ALPS SP1 HF12 B003 are merged with this script.
  • The above upgrade step is applicable only for the SummitAI application instances that are not enabled for GDPR. These steps are already available in the migration tool for the SummitAI application instances, which are enabled for GDPR.

DENALI HF03

All the upgrade script files are available along with SummitAI installer files.

Upgrade Folder Path: <Summit installer CD>\Summit<version no>\UpgradeScripts\

Example: ..\\SummitAISIERRAUpgradeScripts\

Database Upgrade from Denali HF03 to Denali HF04

To perform the database upgrade from Denali HF03 to Denali HF04, do the following:

Schema Version

Upgrade Script

Upgraded Schema Version

DENALI HF03 

12.Summitupgrade_DENALI_HF03_B004_1stSep2020_to_DENALI_HF04_B004_30thSept2020.sql

Note:

  • The upgrade steps of Sierra SP1 HF08 B005 and ALPS SP1 HF14 B006 are merged with this script.
  • The above upgrade step is applicable only for the SummitAI application instances that are not enabled for GDPR. These steps are already available in the migration tool for the SummitAI application instances, which are enabled for GDPR.

DENALI HF04

All the upgrade script files are available along with SummitAI installer files.

Upgrade Folder Path: <Summit installer CD>\Summit<version no>\UpgradeScripts\

Example: ..\\SummitAISIERRAUpgradeScripts\

Database Upgrade from Denali HF04 to Denali HF05

To perform the database upgrade from Denali HF04 to Denali HF05, do the following:

Schema Version

Upgrade Script

Upgraded Schema Version

DENALI HF04 

13.Summitupgrade_DENALI_HF04_B004_30thSept2020_to_DENALI_HF05_B004_2ndNov2020.sql

Note:

  • The upgrade steps of Sierra SP1 HF09 B004, ALPS SP1 HF15 B003 and v5.7 SP5 HF17 B001 are merged with this script.
  • The above upgrade step is applicable only for the SummitAI application instances that are not enabled for GDPR. These steps are already available in the migration tool for the SummitAI application instances, which are enabled for GDPR.

DENALI HF05

All the upgrade script files are available along with SummitAI installer files.

Upgrade Folder Path: <Summit installer CD>\Summit<version no>\UpgradeScripts\

Example: ..\\SummitAISIERRAUpgradeScripts\

Database Upgrade from Denali HF05 to Denali HF06

To perform the database upgrade from Denali HF05 to Denali HF06, do the following:

Schema Version

Upgrade Script

Upgraded Schema Version

DENALI HF05 

14.Summitupgrade_DENALI_HF05_B004_2ndNov2020_to_DENALI_HF06_B003_10thDec2020.sql

Note:

  • The upgrade steps of Sierra SP1 HF10 B005, ALPS SP1 HF16 B001 and v5.7 SP5 HF18 B001 are merged with this script.
  • The above upgrade step is applicable only for the SummitAI application instances that are not enabled for GDPR. These steps are already available in the migration tool for the SummitAI application instances, which are enabled for GDPR.

DENALI HF06

All the upgrade script files are available along with SummitAI installer files.

Upgrade Folder Path: <Summit installer CD>\Summit<version no>\UpgradeScripts\

Example: ..\\SummitAISIERRAUpgradeScripts\

Database Upgrade from Denali HF06 to Denali HF07

To perform the database upgrade from Denali HF06 to Denali HF07, do the following:


Schema Version

Upgrade Script

Upgraded Schema Version

DENALI HF06

15.Summitupgrade_DENALI_HF06_B003_10thDec2020_to_DENALI_HF07_B004_1stFeb2021.sql

Note:

  • The upgrade steps of Sierra SP1 HF11 B003, ALPS SP1 HF17 B003 and v5.7 SP0 HF05 are merged with this script.
  • The above upgrade step is applicable only for the SummitAI application instances that are not enabled for GDPR. These steps are already available in the migration tool for the SummitAI application instances, which are enabled for GDPR.

DENALI HF07

All the upgrade script files are available along with SummitAI installer files.

Upgrade Folder Path: <Summit installer CD>\Summit<version no>\UpgradeScripts\

Example: ..\\SummitAISIERRAUpgradeScripts\

Database Upgrade from Denali HF07 to Denali HF08

To perform the database upgrade from Denali HF07 to Denali HF08, do the following:


Schema Version

Upgrade Script

Upgraded Schema Version

DENALI HF07

16.Summitupgrade_DENALI_HF07_B004_1stFeb2021_to_DENALI_HF08_B002_1stMar2021.sql

Note:

  • The upgrade steps of Sierra SP1 HF12, ALPS SP1 HF18 and v5.7 SP5 HF19 are merged with this script.
  • The above upgrade step is applicable only for the SummitAI application instances that are not enabled for GDPR. These steps are already available in the migration tool for the SummitAI application instances, which are enabled for GDPR.

DENALI HF08

All the upgrade script files are available along with SummitAI installer files.

Upgrade Folder Path: <Summit installer CD>\Summit<version no>\UpgradeScripts\

Example: ..\\SummitAISIERRAUpgradeScripts\

Database Upgrade from Denali HF08 to Denali HF09

To perform the database upgrade from Denali HF08 to Denali HF09, do the following:


Schema Version

Upgrade Script

Upgraded Schema Version

DENALI HF08

17. Summitupgrade_DENALI_HF08_B002_1stMar2021_to_DENALI_HF09_B003_31stMar2021.sql

Note:

  • The upgrade steps of Sierra SP1 HF13, ALPS SP1 HF19 and v5.7 SP5 HF20 are merged with this script.
  • The above upgrade step is applicable only for the SummitAI application instances that are not enabled for GDPR. These steps are already available in the migration tool for the SummitAI application instances, which are enabled for GDPR.

DENALI HF09

All the upgrade script files are available along with SummitAI installer files.

Upgrade Folder Path: <Summit installer CD>\Summit<version no>\UpgradeScripts\

Example: ..\\SummitAISIERRAUpgradeScripts\

Database Upgrade from Denali HF09 to Denali HF10

To perform the database upgrade from Denali HF09 to Denali HF10, do the following:

Schema Version

 Upgrade Script

Upgraded Schema Version

DENALI HF09

18. Summitupgrade_ DENALI_HF09_B003_31stMar2021_to_DENALI_HF10_31stMay2021.sql

Note:

  • The upgrade steps of Sierra SP1 HF15 are merged with this script.
  • The above upgrade step is applicable only for the SummitAI application instances that are not enabled for GDPR. These steps are already available in the migration tool for the SummitAI application instances, which are enabled for GDPR.

DENALI HF10

All the upgrade script files are available along with SummitAI installer files. Upgrade Folder Path: <Summit installer CD>\Summit<version no>\UpgradeScripts\

Example: ..\\SummitAISIERRAUpgradeScripts\

Database Upgrade in BI Report and Global Search

To perform the database upgrade in BI Report and Global Search script, do the following:


Schema Version

 

Upgrade Script

Upgraded Schema

Version

 

 

 

 

 

 

 

 

 

 

 

 

 


BI-

Report and Global Search

19. SummitMigrationscripts_enable_BIReport_GlobalSearch

1.     De-normalization Process Steps.doc – Refer DN Process documents and how-to setup the Linked Server configurations.

2.     DN_Scripts-ONLY_FOR_NEW_IMPLE_NotUpgrade Note: The DN_Scripts.sql is only executed for new implementation not for the upgrade.

3.     Upgrade_Scripts_Till_DENALI HF10 Notes:

•    Drop the dependent index completely if there is an error while dropping the column.

•    While altering the column type or length, take the backup of dependent index and drop. After executing the alter command, recreate the index.

4.     DB_Server_Configuration_LoadData

Follow mentioned steps, in case change in DN configuration

5.     Views.sql

6.     PostScripts.sql Note:

·       To enable the BI Configuration, follow the steps given in the DeNormalization Process Steps document.

·       Denormalization: If the SR_RPT_DN_ServcieTicketMaster contains around 1.5 lacks records, the post-deployment script runs approximately 3 minutes to update old records for [Resolved Updated By ****] columns. Based on the volume of the records and index, the actual execution time may vary.

SummitAI Global Search (Mandatory)

  • Global Search_Configuration_Linked Server Environment.docx
  • SummitSearch_FullTextEnabled_GlobalSearch_index_Script
  • SummitSearch_FullTextEnabled_GlobalSearch_index_Script_ DN
  • Enable outbound transaction for Linked Server.docx
  • BI Report-Emails & Scheduling (Pushreport).docx

Note:

  • For the customer who has DN database only, they need to run SummitSearch_FullTextEnabled_GlobalSearch_index_Script_ DN script only.
  • The scripts written in the Global Search_Configuration_Linked Server Environment document are for reference purpose only.
  • To enable the Summit Global Search, follow the steps given in Global Search_Configuration_Linked Server Environment document.
  • To access BI report related pages, the user needs to update the SummitAI license. For more details, see Enhancement on ROLE TEMPLATE feature in v5.5 SP1 B005 RN.


WithGDPR_Enablescripts

01. DN_Enable_GDPRChanges.sql

Run this script in case GDPR is enabled for the client

 

Enable BI Reports (Denali)

01.EnableBI_Reports script


Note: For installing BI Reports (Denali), please contact SummitAI Support and Implementation team. It is a one-time script that once executed does not require execution for every upgrade.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


DENALI HF10

All the upgrade script files are available along with SummitAI installer files.

Upgrade Folder Path: <Summit installer CD>\Summit<version no>\UpgradeScripts\

Example: ..\\Summitv5.4UpgradeScripts\

Installing PsExec Tool

SummitAI uses Microsoft PsExec tool to perform the following activities:

  • SummitAI IT Operations Management: MS Exchange Monitoring
  • Asset Management: Remote Software Delivery
  • Incident Management: Service Assist

Ensure to install the PsExec tool on the SummitAI Server, if it does not already exist.

Download link: http://technet.microsoft.com/en-us/sysinternals/bb897553

Place the downloaded psexec.exe file under the following SummitAI installer folder:

..\\Bin\TOOLS\PS\psexec.exe

Example: c:\Inetpub\wwwroot\SummitWeb\Bin\TOOLS\PS\psexec.exe

Post Installation Steps

Post installation of the SummitAI application setup, Izenda API Physical Path manually configured to the proper path. Physical Path: <Installation Directory>\API\Izenda7\

 

Note:

The APIs for the various modules, Incident, IT Operations, Asset, and BI Reports (Sierra) are part of the SummitAI Application setup.

Oracle and IBM Client Configuration

The Oracle and IBM client configurations are done to monitor the Oracle and IBM databases, respectively.

Oracle Client Configuration

To configure Oracle client, perform the following:

  1. Open the URL http://www.oracle.com/technetwork/database/windows/downloads/utilsoft-087491.html. Alternatively, you can open the URL http://symphonysummit.blob.core.windows.net/customer-build/ODAC1120320Xcopy_32bit.zip.
  2. Download the ODAC component ODAC1120320Xcopy_32bit.zip.



  3. Extract the .zip folder to the <<drive>>:\extracted folder.
  4. Run the command, cd “C:\ SummitAI \ODAC1120320Xcopy_32bit”, to change directory to the extracted folder, cd <<drive>>:\extracted folder.



  5. Run the command, install.bat odp.net20 c:\oracle\11.2\odac odac11, to install Oracle Data Access Components.



  6. Add the following paths of the installed ODAC components in the Environment Variables of the system:
    • C:\oracle\11.2\odac
    • C:\oracle\11.2\odac\bin

    To add these paths in the Environment Variables, perform the following:

    1. Click Start, right-click Computer, and then click Properties.
    2. On the left side of the Control Panel, click Advanced system settings. The System Properties pop-up page is displayed.
    3. On the System Properties pop-up page, click the Environment Variables button under the Advanced tab. The Environment Variables pop-up page is displayed.
    4. On the Environment Variables pop-up page, in the System variable section, double-click the variable, Path, to edit it.
    5. On the Edit System Variable pop-up page, in the Variable value field, add the text, C:\oracle\11.2\odac;C:\oracle\11.2\odac\bin, at the beginning of the existing text, and then click OK.
    6. Restart your system.

IBM Client Configuration

To configure the IBM client, perform the following steps:

  1. Open the URL http://www-01.ibm.com/support/docview.wss?rs=4020&uid=swg21385217. Alternatively, you can open the URL https://symphonysummit.blob.core.windows.net/prerequisites/ibm_data_server_client_winx64_v11.1.zip.
  2. On the following page, click IBM Data Server Client.


  3. In the IBM Data Server Client section, select IBM Data Server Client (Windows AMD64 and Intel EM64T) option, and then click Continue.



  4. Fill in the required details, and then click I confirm.



  5. The .exe file is downloaded. You can install the file to connect to the IBM Database Server.

Online Help Upgrade

While upgrading from earlier version of SUMMIT to v5.7 SP1 HF01, perform the following steps for Online Help configuration:

Delete the existing Online Help folder (~/Webfiles/OnlineHelp) and add new Online Help folder from 5.7 SP1 HF01 upgrade files.

BI Reports

While upgrading from earlier version of SummitAI to v5.7 SP1 HF01, perform the following steps for BI report configuration:

  • Add the below tag in web.config file and remove the Izenda.config file from (~/Webfiles/) <add key="Izenda:LicenseKey" value="T370 Symphony Summit +DASH +MAPS +LANG +FORMS +VISION+FUSION|Enterprise|6.8|09/30/2016|0|0|0|M|YG6YSZE"/>
  • Delete the existing Reporting folder(~/Webfiles/Reporting) and add new Reporting folder from 5.7 SP1 HF01 upgrade files
  • Update the SMTP configuration details in web.config instead of izenda.config

Maximum File Size for Attachments

The default maximum file attachment size is 4 MB. This value can be configured using the following keys in the web.config file:

 <add key="All:MaxAttachmentSize" value="4" />

 However, it is recommended to keep the maximum file size limit to 8 MB for best system performance.

Reference Documents

SummitAI IT Management Suite document library comprises the following list of documents:

For all other documents, please contact the SummitAI Support Team.

Support

If you need any technical assistance from the SummitAI Support Team, contact at:

 https://support.symphonysummit.com/ or e-mail to summitsupport@symphonysummit.com