usr/share/keyrings/arctica-keyring.gpg etc/apt/trusted.gpg.d/arctica-archive-keyring.gpg 
usr/share/keyrings/itzks-keyring.gpg etc/apt/trusted.gpg.d/itzks-archive-keyring.gpg 
usr/share/keyrings/x2go-keyring.gpg etc/apt/trusted.gpg.d/x2go-archive-keyring.gpg