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+# Firewire
+
+Para evitar [dumps de memória via
+firewire](http://links.sarava.org/tags/firewire), [este
+artigo](http://www.hermann-uwe.de/blog/physical-memory-attacks-via-firewire-dma-part-1-overview-and-mitigation)
+oferece a mitigação ideal via `/etc/modprobe.d/blacklist`:
+
+    # Physical memory attacks via Firewire/DMA Mitigation
+    # Prevent automatic loading of the ohci1394 module.
+    blacklist ohci1394
+    # Prevent manual loading of the ohci1394 module.
+    install ohci1394 false
+    # Iff we should ever load the ohci1394 module, force the use of the 'phys_dma=0' option.
+    options ohci1394 phys_dma=0
+
+Depois dessa configuração, é preciso atualizar a `initrd` de cada sistema, através do comando
+
+    update-initramfs -v -u
+
+Feito isso, o firewire pode ser desabilitado nos sistemas que estão rodando simplesmente com um
+
+    rmmod ohci1394
+