GPG Keys Error

[devzeroo]

Not able to install Cortex from DEB because the repo key is not being downloaded.

sudo apt-key adv --keyserver hkp://pgp.mit.edu --recv-key 562CBC1C

Executing: /tmp/apt-key-gpghome.52eLRlobjR/gpg.1.sh --keyserver hkp://pgp.mit.edu --recv-key 562CBC1C
gpg: keyserver receive failed: No data

[1nv3st1gat0r]

Same issue, but quick and easy workaround: Download the key/copy it into a textfile and add the key to the system with sudo apt-key add <keyfile>

But the issue is already mentiond in the guideline:
Some environments may block access to the pgp.mit.edu key server. As a result, the command sudo apt-key adv --keyserver hkp://pgp.mit.edu --recv-key 562CBC1C will fail. In that case, you can run the following command instead:
curl https://raw.githubusercontent.com/TheHive-Project/TheHive/master/PGP-PUBLIC-KEY | sudo apt-key add -
I guess the issue could be closed ...