Unable to update GCE


I just installed the Greenbone Community Edition using the ISO on hyper v. I do have an internet access on the machine but still the feed doesn’t seems to be updating.
I tried going to the shell to check logs but I do not seem to obtain the super user privileage to check any info. Could you please help me on how to get the root access to check the logs and also if you can share with me any particular IP or domain to which I need to resuest ports to be opened like 873 for RSYNC.

Best Regards,