DebianおよびUbuntuにセキュリティ更新を自動的にインストール

# apt-get install unattended-upgrades apt-listchanges

# vi /etc/apt/apt.conf.d/50unattended-upgrades

Unattended-Upgrade::Mail "<自分のgmailアドレス>";

# dpkg-reconfigure -plow unattended-upgrades

# vi /etc/apt/apt.conf.d/20auto-upgrades

APT::Periodic::Update-Package-Lists "1";
APT::Periodic::Unattended-Upgrade "1";
APT::Periodic::Verbose "2";

# vi /etc/apt/listchanges.conf

email_address=<自分のgmailアドレス>