VMware 3V0-41.22 Advanced Deploy VMware NSX-T Data Center 3.x Exam Practice Test

To enable logging for the production NSX-T environment, you need to follow these steps:

• Verify via putty with SSH that the administrator can connect to all NSX-Transport Nodes. You can use the credentials identified in Putty (admin) to log in to each transport node. For example, you can use the following command to connect to the sfo01w01en01 edge transport node:ssh admin@sfo01w01en01. You should see a welcome message and a prompt to enter commands.
• Verify that there is no current active logging enabled by reviewing that directory is empty -/var/log/syslog-. You can use thelscommand to list the files in the /var/log/syslog directory. For example, you can use the following command to check the sfo01w01en01 edge transport node:ls /var/log/syslog. You should see an empty output if there is no active logging enabled.
• Enable NSX Manager Cluster logging. You can use thesearch_web("NSX Manager Cluster logging configuration")tool to find some information on how to configure remote logging for NSX Manager Cluster. One of the results isNSX-T Syslog Configuration Revisited - vDives, which provides the following steps:
• Select multiple configuration choices that could be appropriate success criteria. You can use thesearch_web("NSX-T logging success criteria")tool to find some information on how to verify and troubleshoot logging for NSX-T. Some of the possible success criteria are:
• Enable NSX Edge Node logging. You can use thesearch_web("NSX Edge Node logging configuration")tool to find some information on how to configure remote logging for NSX Edge Node. One of the results isConfigure Remote Logging - VMware Docs, which provides the following steps:

set logging-server proto level [facility ] [messageid ] [serverca ] [clientca ] [certificate ] [key ] [structured-data ]

• Validate logs are generated on each selected appliance by reviewing the "/var/log/syslog”. You can use thecatortailcommands to view the contents of the /var/log/syslog file on each appliance. For example, you can use the following command to view the last 10 lines of the sfo01w01en01 edge transport node:tail -n 10 /var/log/syslog. You should see log messages similar to this:

2023-04-06T12:34:56+00:00 sfo01w01en01 user.info nsx-edge[1234]: 2023-04-06T12:34:56Z nsx-edge[1234]: INFO: [nsx@6876 comp="nsx-edge" subcomp="nsx-edge" level="INFO" security="False"] Message from nsx-edge

You have successfully enabled logging for the production NSX-T environment.

To configure the NSX backups for the environment, you need to follow these steps:

• Verify that an SFTP server is available on the network and obtain SFTP fingerprint. You can use thesearch_web("SFTP server availability")tool to find some information on how to set up and check an SFTP server. You can also use thessh-keyscancommand to get the fingerprint of the SFTP server. For example,ssh-keyscan -t ecdsa sftp_serverwill return the ECDSA key of the sftp_server. You can compare this key with the one displayed on the NSX Manager UI when you configure the backup settings.
• Configure NSX Backups via NSX Appliance Backup. Log in to the NSX Manager UI with admin credentials. The default URL is https://. Select System > Lifecycle Management > Backup & Restore. Click Edit under the SFTP Server label to configure your SFTP server. Enter the FQDN or IP address of the backup file server, such as 10.10.10.100. The protocol text box is already filled in. SFTP is the only supported protocol. Change the default port if necessary. The default TCP port is 22. In the Directory Path text box, enter the absolute directory path where the backups will be stored, such as /data. The directory must already exist and cannot be the root directory (/). Avoid using path drive letters or spaces in directory names; they are not supported. In the Passphrase text box, enter a passphrase that will be used to encrypt and decrypt the backup files, such as VMware1!. Click Save to create the backup configuration.
• Configure Scheduling Criteria. On the Backup & Restore page, click Edit under the Schedule label to configure your backup schedule. Select Enabled from the drop-down menu to enable scheduled backups. Select Daily from the Frequency drop-down menu to run backups once every 24 hours. Select a time from the Time drop-down menu to specify when the backup will start, such as 12:00 AM. Select Enabled from the Additional Backup Trigger drop-down menu to run backups when there are changes published to the NSX environment. Click Save to create the backup schedule.
• Verify that a backup file has been created on the SFTP server. On the Backup & Restore page, click Start Backup to run a manual backup and verify that it completes successfully. You should see a message saying “Backup completed successfully”. You can also check the status and details of your backups on this page, such as backup size, duration, and timestamp.Alternatively, you can log in to your SFTP server and check if there is a backup file in your specified directory path, such as /data.

To troubleshoot the NSX IPSec VPN service that has been reported down, you need to follow these steps:

• Log in to the NSX Manager UI with admin credentials. The default URL is https://.
• Navigate to Networking > VPN > IPSec VPN and select the IPSec VPN session that is down. You can identify the session by its name, local endpoint, remote endpoint, and status.
• Click Show IPSec Statistics and view the details of the IPSec VPN session failure. You can see the error message, the tunnel state, the IKE and ESP status, and the statistics of the traffic sent and received.
• Compare the configuration details of the IPSec VPN session with the expected configuration as provided below. Check for any discrepancies or errors in the parameters such as local and remote endpoints, local and remote networks, IKE and ESP profiles, etc.
• If you find any configuration errors, click Actions > Edit and modify the parameters accordingly. Click Save to apply the changes.
• If you do not find any configuration errors, check the connectivity and firewall rules between the local and remote endpoints. You can use ping or traceroute commands from the NSX Edge CLI to test the connectivity. You can also use show service ipsec command to check the status of IPSec VPN service on the NSX Edge.
• If you find any connectivity or firewall issues, resolve them by adjusting the network settings or firewall rules on the NSX Edge or the third-party device.
• After resolving the issues, verify that the IPSec VPN session is up and running by refreshing the IPSec VPN page on the NSX Manager UI. You can also use show service ipsec sp and show service ipsec sa commands on the NSX Edge CLI to check the status of security policy and security association for the IPSec VPN session.

To troubleshoot ICMP traffic and make any necessary changes to the Boston application security policy, you need to follow these steps:

• Log in to the NSX Manager UI with admin credentials. The default URL is https://.
• Navigate to Security > Distributed Firewall and select the firewall policy that applies to the Boston application. For example, select Boston-web-Application.
• Click Show IPSec Statistics and view the details of the firewall rule hits and logs. You can see which rules are matching the ICMP traffic and which actions are taken by the firewall.
• If you find that the ICMP traffic is allowed by a rule that is not intended for it, you can edit the rule and change the action to Drop or Reject. You can also modify the source, destination, or service criteria of the rule to make it more specific or exclude the ICMP traffic.
• If you find that the ICMP traffic is not matched by any rule, you can create a new rule and specify the action as Drop or Reject. You can also specify the source, destination, or service criteria of the rule to match only the ICMP traffic from the main console to the Boston web VMs.
• After making the changes, click Publish to apply the firewall policy.
• Verify that the ICMP traffic is blocked by pinging the Boston web VMs from the main console again.You should see a message saying “Request timed out” or “Destination unreachable”.