/etc/firejail/Xephyr.profile is in firejail-profiles 0.9.52-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 | # Firejail profile for Xephyr
# This file is overwritten after every install/update
# Persistent local customizations
include /etc/firejail/Xephyr.local
# Persistent global definitions
include /etc/firejail/globals.local
#
# This profile will sandbox Xephyr server itself when used with firejail --x11=xephyr.
# To enable it, create a firejail-Xephyr symlink in /usr/local/bin:
#
# $ sudo ln -s /usr/bin/firejail /usr/local/bin/Xephyr
#
# or run "sudo firecfg"
#
blacklist /media
whitelist /var/lib/xkb
include /etc/firejail/whitelist-common.inc
caps.drop all
# Xephyr needs to be allowed access to the abstract Unix socket namespace.
nodvd
nogroups
nonewprivs
# In noroot mode, Xephyr cannot create a socket in the real /tmp/.X11-unix.
# noroot
nosound
notv
protocol unix
seccomp
shell none
# using a private home directory
private
# private-bin Xephyr,sh,xkbcomp
# private-bin Xephyr,sh,xkbcomp,strace,bash,cat,ls
private-dev
# private-etc ld.so.conf,ld.so.cache,resolv.conf,host.conf,nsswitch.conf,gai.conf,hosts,hostname
private-tmp
|