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Unable to establish connection: IO Error: The Network adapter could not establish the connection - Denodo 8.0

I have the Denodo Quickstart virtual machine up and running on VirtualBox 6.1.18 I have followed the instructions regarding network adapter #2 configuration as provided and if i run command ip addr within the VM I can see that the adapter ip address 192.168.100.3 is being used. The VDP is also up and running in Denodo 8.0 and i have succesfully logged in to the newly created denodo_training database and am in process of creating the first data source ds_web_orders. I have followed the instructions exactly as shown but the URL jdbc:oracle:thin:@192.168.100.3:1521:xe returns an error: Unable to establish connection: IO Error: The Network adapter could not establish the connection. I have also tried adding host name data-server in hosts file and replacing the ip address in the URL but get the same error whether using name or ip address If i try to ping data-server I also get the message Request timed out. Is there some other steps required that are not listed in the documentation that i have missed? Thanks in advance!
user
12-04-2021 10:21:17 -0400
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3 Answers

Hi, When I faced the similar issue, I performed the following, * In the Virtual Machine Host network manager, add the new Host only network adapter #2 as indicated in the **Denodo Training QuickStart Virtual Machine - User Manual - <version>**. * Next, in the Virtual Machine settings for the Denodo Training Quickstart Virtual Machine, go to the **Network** menu option and set Adapter 2 to the new that is created and **disable the Adapter 1** which is enabled by default. * Now, start DQVM and login to find the IP address of the DQVM using the **ipaddr** command. * In Virtual DataPort Administration tool, create the [JDBC data source](https://community.denodo.com/docs/html/browse/latest/en//vdp/administration/creating_data_sources_and_base_views/jdbc_sources/jdbc_sources#importing-jdbc-sources) with the Database URI as** jdbc:oracle:thin:@<DQVM_IP_ADDR>:1521:xe**. Hope this helps!
Denodo Team
13-04-2021 06:52:36 -0400
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Hi, i followed all the steps but it keeps showing me the same error. - I went to the network section and deactivated card 1 and put adapter # 2 on card 2. - when I started the virtual machine (DQVM) I get the IP 192.168.100.8 On Virtual DataPort Administration Tool I put on URI -> jdbc:oracle:thin:@192.168.100.8:1521:xe - when I do the connection test I get this error "Unable to establish connection: IO Error: The Network Adapter could not establish the connection" - to verify that I can reach virtual machine IP I put on CMD as administrator "Ping 192.168.100.8" and it gave me as result "Pinging 192.168.100.8 with 32 bytes of data: Request timed out." Thanks in advance!
user
14-04-2021 07:52:10 -0400
I had the same problem and followed the advice of the denodo team. The solution that worked for me was using another IP address. My QuickStart virtual machine runs on 192.168.178.36 and 192.168.100.3. I dont know why the second address didnt work for me but using the first adress was my solution.
user
19-01-2023 09:42:42 -0500
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