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Papewire and screensharing

When sharing your screen or other forn of sharing, and the notification mention a Pipewire missing funcrionality, just install the package papewire and then load it. In Debian 12: $ sudo apt install pipewire $ systemctl --user start pipewire

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Simulating a command execution

January 06, 2022

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Options to add after the command. Choose one of the followings:

-n
--just-print
--dry-run
--recon

commands

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Papewire and screensharing

When sharing your screen or other forn of sharing, and the notification mention a Pipewire missing funcrionality, just install the package papewire and then load it. In Debian 12: $ sudo apt install pipewire $ systemctl --user start pipewire

Process and device isolation

Process isolation Linux isolates the processes, and each of them can't access others' ones, even of they're running under the same user's privileges. Other system Linux uses to enhance security and protection: Control Groups (cgroups) Administrators can group processes and associate a limit of resources to each cgroup. Containers It runs multiple isolated Linux systems (containers) on a single system based on cgroups. Virtualisation Entire systems can run simultaneously as isolated and insulated guests (virtual machines) on one physical host. Device isolation Hardware and devices are not directly accessible. There is a file system layer which creates a file called node in /dev/ for every device of hardware. Each device special file has a standard owner, group and world permission fields. Security is the same like a normal file.

Firmware management: fwupdmgr

To upgrade the firmware, you can use the fwupdmgr command. Install it: $ sudo apt install fwupd Get a list of devices that support firmware updates with fwupdmgr: $ fwupdmgr get-devices Get the status of the devices if they have an available firmware update: $ fwupdmgr get-updates Install all available updates: $ fwupdmgr update Manually pass the device IDS of the devices you want to be updated: $ fwupdmgr update <DEVICE IDS>

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Papewire and screensharing

Simulating a command execution

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