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rubo77
Asked: 2019-10-28 17:54:45 +0800 CST

use debsums to automatically check all installed packages

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I want to use debsumsto check integrity of all my packages with

sudo dpkg -l | awk {'print $2'} | xargs | debsums |grep -v OK

But I get those errors:

debsums: can't open fwupd file /var/lib/polkit-1/localauthority/10-vendor.d/fwupd.pkla (Permission denied)
debsums: can't open geoclue-2.0 file /var/lib/polkit-1/localauthority/10-vendor.d/geoclue-2.0.pkla (Permission denied)
debsums: can't open gnome-initial-setup file /var/lib/polkit-1/localauthority/10-vendor.d/gnome-initial-setup.pkla (Permission denied)
debsums: can't open linux-image-5.0.0-31-generic file /boot/vmlinuz-5.0.0-31-generic (Permission denied)
debsums: can't open linux-image-5.0.0-32-generic file /boot/vmlinuz-5.0.0-32-generic (Permission denied)
debsums: can't open linux-modules-5.0.0-31-generic file /boot/System.map-5.0.0-31-generic (Permission denied)
debsums: can't open linux-modules-5.0.0-32-generic file /boot/System.map-5.0.0-32-generic (Permission denied)
debsums: can't open network-manager file /var/lib/polkit-1/localauthority/10-vendor.d/org.freedesktop.NetworkManager.pkla (Permission denied)
debsums: can't open packagekit file /var/lib/polkit-1/localauthority/10-vendor.d/org.freedesktop.packagekit.pkla (Permission denied)
debsums: can't open policykit-desktop-privileges file /var/lib/polkit-1/localauthority/10-vendor.d/com.ubuntu.desktop.pkla (Permission denied)
debsums: can't open systemd file /var/lib/polkit-1/localauthority/10-vendor.d/systemd-networkd.pkla (Permission denied)

How do I prevent those errors? And why can't even root read those files?

Finally, I would like to create some minimal rootkit detection system that sends out an E-Mail if there is any output

security rootkit

1 Answers

  1. Best Answer
    dpkg -l | egrep '^ii' | awk '{print $2}' | xargs sudo debsums | egrep -v 'OK'
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