Documentation Tsurugi Linux [LAB]

Many special and hidden features have been implemented in Tsurugi Linux OS:

A Write Blocker system has been enforced at kernel level to avoid device write access and integrity alteration

To prevent settings changes, potentially due to future updates, each time an user session starts, all values about device automount, device autorun and system hibernation options are put with default customized values

Each time the system boot, a cleaner script (tsurugi_cleaner) runs to kill programs that have been started because of new updates. This feature has been designed to limit memory waste

Automatic set HI-DPI zoom for high screen resolution with more than 2560 pixels. There is an option, inside graphics menu, where you can switch to the original screen resolution

In live mode, during the boot phase, it's possible to disable specific graphic drivers in case of visualization problems or potential crashes

OSINT Profile Switcher (profile_switcher_tsurugi) it's a feature that allows to fastly switch from DFIR to OSINT profile
The difference is that the Tsurugi menu became lighter because are kept only a few categories useful for OSINT activities. To easily differentiate the two profiles the default wallpaper also changes

An hidden feature allows to reset all menus and wallpapers (DFIR and OSINT profiles) to default values
(command line: profile_switcher_tsurugi default)

A graphical dashboard is available on desktop with many real time information (if needed it's possible to reset it by “Dashboard reset” button or “dashboard” command on Command Line Interface)

A Mouse keys switch function has been added to easily move the mouse pointer with only the keypad if needed. The on/off button is available on the Desktop

In some particular cases, it's possible to find faulty or incompatible hardware that generates huge quantity of error logs and so that, in live mode, saturates RAM. For this specific situation has been prepared a custom logrotate configuration, available under RAM saturation workaround button, that allows to work on this system despite this hardware problem

“TSURUGI Linux - the sharpest weapon in your DFIR arsenal”