Hello Hebert-
The message indicates the Delphix Engine timed out while attempting to connect via SSH to the IP address indicated, using the specified TCP port (22, by default).
This can be encountered as the result of a routing issue, firewall between the Delphix Engine and the host, firewall settings on the host, among other causes. If you'd like to test further, the Environment creation can be attempted again and monitored by your network team, or you can execute manual tests as well.
To execute ping test, you can use the Network Latency test via CLI. Here's an example, simulated using the IP address from your screenshot:
delphixEngine> network test latency
delphixEngine network test latency> create
delphixEngine network test latency create *> set remoteAddress=192.168.0.157
delphixEngine network test latency create *> commit
`NETWORK_LATENCY_TEST-1
Dispatched job JOB-28
NETWORK_LATENCY_TEST_EXECUTE job started for "192.168.0.157-2022-04-13T17:58:30.245Z".
Executing network latency test.
NETWORK_LATENCY_TEST_EXECUTE job for "192.168.0.157-2022-04-13T17:58:30.245Z" completed successfully.
delphixEngine network test latency> ls
Objects
NAME STATE AVERAGE
192.168.0.157-2022-04-13T17:58:30.245Z COMPLETED 241usec
Operations
create
Once completed, you can select the test to view results (note, the job completing successfully does not indicate actual ping success).
Loss is the primary concern; if packets are lost, this suggests a network routing issue or some other problem with basic TCP connectivity. In the example below, I have 0 loss, so I know I can reach the host. Note, since this is a basic ping test, if ICMP is suppressed in the network this test may still fail, though the host can be reachable.
delphixEngine network test latency> select 192.168.0.157-2022-04-13T17:58:30.245Z
delphixEngine network test latency '192.168.0.157-2022-04-13T17:58:30.245Z'> ls
Properties
type: NetworkLatencyTest
name: 192.168.0.157-2022-04-13T17:58:30.245Z
average: 241usec
endTime: 2022-04-13T17:58:49.786Z
loss: 0
maximum: 314usec
minimum: 198usec
parameters:
type: NetworkLatencyTestParameters
remoteAddress: 192.168.0.157
requestCount: 20
requestSize: 16B
reference: NETWORK_LATENCY_TEST-1
remoteAddress: 192.168.0.157
startTime: 2022-04-13T17:58:30.245Z
state: COMPLETED
stddev: 32usec
Beyond this, if no loss is indicated, you can perform further ad-hoc tests of SSH connectivity via CLI as well, substituting values as appropriate for username and credentials.password:
delphixEngine> connectivity ssh
delphixEngine connectivity ssh *> set address=192.168.0.157
delphixEngine connectivity ssh *> set username=<username>
delphixEngine connectivity ssh *> set credentials.type=PasswordCredential
delphixEngine connectivity ssh *> set credentials.password=<password>
delphixEngine connectivity ssh *> commit
Once the SSH connectivity can be successfully tested, you can proceed with adding the Environment.
If more detailed assistance is required, a Support case can be opened, though your network and admin teams will be the best initial resource to ensure requisite services and routing are available.
Please also review our Documentation, which includes port requirements for the Delphix Engine to reach remote Environments.
https://docs.delphix.com/docs/deployment/network-connectivity-requirements
https://docs.delphix.com/docs/datasets/oracle-environments-and-data-sources/oracle-support-and-requirements/network-and-connectivity-requirements-for-oracle-environments#NetworkandConnectivityRequirementsforOracleEnvironments-PortAllocationforOracleEnvironments
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Sean Nothdurft
Senior Principal Technical Support Engineer
Delphix
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Original Message:
Sent: 04-13-2022 12:45:52 PM
From: hebert souza
Subject: An error occurred when attempting to connect to remote host
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hebert souza
TGV
TGV Tecnologia Ltda.
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