MirrorNest
← Todos os guias

Automatic security updates on Ubuntu Server

Configure unattended-upgrades so security patches install automatically without manual intervention -- reduces the window a known vulnerability stays unpatched on a server nobody logs into daily.

Destino: Ubuntu 22.04 LTS / 24.04 LTSSecurityMaintenanceSite oficial ↗Documentação oficial ↗
Este guia foi elaborado a partir da documentação oficial do Automatic security updates on Ubuntu Server, ligada acima — verifique sempre lá os nomes exatos dos pacotes/versões antes de executar estes comandos num servidor de produção, uma vez que as versões da distribuição e do projeto mudam com o tempo.

  1. 1Install unattended-upgrades

    sudo apt update
    sudo apt install unattended-upgrades apt-listchanges

  2. 2Enable it

    Choose "Yes" on the prompt -- this enables the daily systemd timer that applies updates.

    sudo dpkg-reconfigure --priority=low unattended-upgrades

  3. 3Review what gets auto-updated

    cat /etc/apt/apt.conf.d/50unattended-upgrades

    By default only the -security repository is included. Uncomment additional origins in this file only if you specifically want full unattended upgrades, not just security patches.

  4. 4Verify it's actually running

    sudo unattended-upgrade --dry-run --debug