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SAP NetWeaver ECSs belong to a private subnet, and the NAT ECS belongs to a public subnet. Users can log in to the NAT ECS with an EIP bound using RDP or SSH and use SAP GUI on the NAT ECS to access SAP NetWeaver ECSs.
Creating an ECS Used as an NAT Server Scenarios In the scenario where tenants access SAP NetWeaver using an NAT server (with an EIP bound), create an ECS to be used as an NAT server on the public subnet.
Recommended ECS Planning This section describes the planning of SAP NetWeaver ECSs and NAT server (SAP GUI). The flavors are only for reference. The ECS specifications are recommended examples. Choose one based on the SAP Sizing results.
Configure advanced settings for the NAT server as prompted. Table 3 NAT server advanced configuration Parameter Description ECS Name Specifies the ECS name. For more details, see SAP Note 611361. Login Mode Select Key pair.
Central instance: 10.0.3.2 NAT server: 10.0.3.202 Database server: 10.0.3.3 EIP A public IP address, which allows you to access the NAT server Automatically allocated by the public cloud Network plane planning (using a VPN to access the SAP NetWeaver system in the distributed deployment
Creating an ECS (Other Nodes) Scenarios In the SAP Business One system, besides the SAP Business One ECS, you need to create the following ECSs: NAT server: allows you to access SAP Business One nodes using Secure Shell (SSH).
Creating an ECS (Other Nodes) Scenarios In the SAP Business One system, besides the SAP Business One ECS, you need to create the following ECSs: NAT server: allows you to access SAP Business One nodes using Secure Shell (SSH).
Configuring SSH Switching Permissions Procedure Upload the key file to the NAT server. The following steps use WinSCP to upload the key file to the NAT server. You are free to use other tools. On the local computer, generate the key file for logging in to the NAT server.
Creating ECSs Creating an SAP HANA ECS Creating an SFS File System Creating an SAP HANA Studio ECS Creating an NAT ECS Configuring SSH Switching Permissions Configuring the Mapping Between SAP HANA Host Names and IP Addresses Parent topic: Deployment
to access the NAT server using HTTPS.
to access the NAT server using HTTPS.
Windows: Windows Server 2012 R2 or Windows Server 2008 R2 Linux: SUSE Linux Enterprise Server (SLES) 12 SP2 or later Flavor: s1.xlarge (4 vCPUs and 16 GB memory capacity) System disk: High I/O and 80 GB NAT server OS: SUSE Linux Enterprise Server (SLES) 12 SP2 or later Flavor: s1.
Use PuTTY to log in to the NAT server with an EIP bound. Ensure that user root and the key file (.ppk file) are used for authentication. Then, use SSH to switch to the SAP HANA and SAP Business One nodes. Format disks.
Use PuTTY to log in to the NAT server with an EIP bound. Ensure that user root and the key file (.ppk file) are used for authentication. Then, use SSH to switch to the SAP HANA and SAP Business One nodes. Format disks.
To switch from the NAT server to the SAP Business One node, run the following command: ssh 10.0.3.2 After the switching, you must switch back to the NAT server. Then, verify the switching from the NAT server to other nodes.
To switch from the NAT server to the SAP Business One node, run the following command: ssh 10.0.3.2 After the switching, you must switch back to the NAT server. Then, verify the switching from the NAT server to other nodes.
NAT Server Prepare a Network Address Translation (NAT) server on which SAP HANA and SAP Business One clients and SAP HANA Studio are installed. Parent topic: HUAWEI CLOUD SAP Business One on HANA Installation Best Practice
NAT Server Prepare a Network Address Translation (NAT) server on which SAP Studio for accessing SAP HANA and SAP GUI for accessing SAP applications are installed. Parent topic: SAP S/4HANA (1809) HA Deployment Best Practice
NAT Server Prepare a Network Address Translation (NAT) server on which SAP GUI for accessing SAPinst installation page and SAP application is installed. Parent topic: Huawei Cloud SAP on DB2 Installation Best Practice
After the switching, you must switch back to the NAT server. Then, verify the switching from the NAT server to other nodes. During the first switching, the system displays the fingerprint as well as the message "Are you sure you want to continue connecting (yes/no)?".
