KDE

roles/sudo-dom0-prompt/tasks/files/etc/authselect/custom/sudo-dom0-prompt/system-auth

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+# Generated by authselect
+# Do not modify this file manually, use authselect instead. Any user changes will be overwritten.
+# You can stop authselect from managing your configuration by calling 'authselect opt-out'.
+# See authselect(8) for more details.
+
+
+auth        [success=1 default=ignore]                   pam_exec.so seteuid /usr/lib/qubes/qrexec-client-vm dom0 qubes.VMAuth /bin/grep -q ^1$
+auth        requisite                                    pam_deny.so
+auth        required                                     pam_permit.so
+account     required                                     pam_unix.so
+
+password    requisite                                    pam_pwquality.so
+password    sufficient                                   pam_unix.so yescrypt shadow nullok use_authtok
+password    required                                     pam_deny.so
+
+session     optional                                     pam_keyinit.so revoke
+session     required                                     pam_limits.so
+-session    optional                                     pam_systemd.so
+session     [success=1 default=ignore]                   pam_succeed_if.so service in crond quiet use_uid
+session     required                                     pam_unix.so

roles/sudo-dom0-prompt/tasks/files/etc/dconf/db/local.d/adw-gtk3-dark

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+[org/gnome/desktop/interface]
+gtk-theme='adw-gtk3-dark'

roles/sudo-dom0-prompt/tasks/files/etc/dconf/db/local.d/automount-disable

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+[org/gnome/desktop/media-handling]
+automount=false
+automount-open=false
+autorun-never=true

roles/sudo-dom0-prompt/tasks/files/etc/dconf/db/local.d/locks/automount-disable

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+org/gnome/desktop/media-handling/automount
+org/gnome/desktop/media-handling/automount-open
+/org/gnome/desktop/media-handling/autorun-never

roles/sudo-dom0-prompt/tasks/files/etc/dconf/db/local.d/locks/privacy

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+/org/gnome/system/location/enabled
+
+/org/gnome/desktop/privacy/remember-recent-files
+/org/gnome/desktop/privacy/remove-old-trash-files
+/org/gnome/desktop/privacy/remove-old-temp-files
+/org/gnome/desktop/privacy/report-technical-problems
+/org/gnome/desktop/privacy/send-software-usage-stats
+/org/gnome/desktop/privacy/remember-app-usage
+
+/org/gnome/online-accounts/whitelisted-providers
+
+/org/gnome/desktop/remote-desktop/rdp/enable
+
+/org/gnome/desktop/remote-desktop/vnc/enable

roles/sudo-dom0-prompt/tasks/files/etc/dconf/db/local.d/prefer-dark

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+[org/gnome/desktop/interface]
+color-scheme='prefer-dark'

roles/sudo-dom0-prompt/tasks/files/etc/dconf/db/local.d/privacy

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+[org/gnome/system/location]
+enabled=false
+
+[org/gnome/desktop/privacy]
+remember-recent-files=false
+remove-old-trash-files=true
+remove-old-temp-files=true
+report-technical-problems=false
+send-software-usage-stats=false
+remember-app-usage=false
+
+[org/gnome/desktop/remote-desktop/rdp]
+enable=false
+
+[org/gnome/desktop/remote-desktop/vnc]
+enable=false

roles/sudo-dom0-prompt/tasks/files/etc/dnf/dnf.conf

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+[main]
+gpgcheck=True
+installonly_limit=3
+clean_requirements_on_remove=True
+best=False
+skip_if_unavailable=True
+max_parallel_downloads=10
+deltarpm=False
+defaultyes=True
+install_weak_deps=False
+countme=False

roles/sudo-dom0-prompt/tasks/files/etc/environment

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+JavaScriptCoreUseJIT=0
+GJS_DISABLE_JIT=1
+XDG_CURRENT_DESKTOP=GNOME

roles/sudo-dom0-prompt/tasks/files/etc/ld.so.preload

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+libhardened_malloc.so

roles/sudo-dom0-prompt/tasks/files/etc/modprobe.d/workstation-blacklist.conf

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+# unused network protocols
+install dccp /bin/false
+install sctp /bin/false
+install rds /bin/false
+install tipc /bin/false
+install n-hdlc /bin/false
+install ax25 /bin/false
+install netrom /bin/false
+install x25 /bin/false
+install rose /bin/false
+install decnet /bin/false
+install econet /bin/false
+install af_802154 /bin/false
+install ipx /bin/false
+install appletalk /bin/false
+install psnap /bin/false
+install p8023 /bin/false
+install p8022 /bin/false
+install can /bin/false
+install atm /bin/false
+
+# firewire and thunderbolt
+install firewire-core /bin/false
+install firewire_core /bin/false
+install firewire-ohci /bin/false
+install firewire_ohci /bin/false
+install firewire_sbp2 /bin/false
+install firewire-sbp2 /bin/false
+install firewire-net /bin/false
+install thunderbolt /bin/false
+install ohci1394 /bin/false
+install sbp2 /bin/false
+install dv1394 /bin/false
+install raw1394 /bin/false
+install video1394 /bin/false
+
+# unused filesystems
+install cramfs /bin/false
+install freevxfs /bin/false
+install jffs2 /bin/false
+install hfs /bin/false
+install hfsplus /bin/false
+install squashfs /bin/false
+install udf /bin/false
+install cifs /bin/false
+install nfs /bin/false
+install nfsv3 /bin/false
+install nfsv4 /bin/false
+install ksmbd /bin/false
+install gfs2 /bin/false
+install reiserfs /bin/false
+install kafs /bin/false
+install orangefs /bin/false
+install 9p /bin/false
+install adfs /bin/false
+install affs /bin/false
+install afs /bin/false
+install befs /bin/false
+install ceph /bin/false
+install coda /bin/false
+install ecryptfs /bin/false
+install erofs /bin/false
+install jfs /bin/false
+install minix /bin/false
+install netfs /bin/false
+install nilfs2 /bin/false
+install ocfs2 /bin/false
+install romfs /bin/false
+install ubifs /bin/false
+install zonefs /bin/false
+install sysv /bin/false
+install ufs /bin/false
+
+# disable vivid
+install vivid /bin/false
+
+# disable GNSS
+install gnss /bin/false
+install gnss-mtk /bin/false
+install gnss-serial /bin/false
+install gnss-sirf /bin/false
+install gnss-usb /bin/false
+install gnss-ubx /bin/false
+
+# https://en.wikipedia.org/wiki/Bluetooth#History_of_security_concerns
+install bluetooth /bin/false
+install btusb /bin/false
+
+# blacklist ath_pci
+blacklist ath_pci
+
+# blacklist cdrom
+blacklist cdrom
+blacklist sr_mod
+
+# blacklist framebuffer drivers
+# source, ubuntu: https://git.launchpad.net/ubuntu/+source/kmod/tree/debian/modprobe.d/blacklist-framebuffer.conf
+blacklist cyber2000fb
+blacklist cyblafb
+blacklist gx1fb
+blacklist hgafb
+blacklist kyrofb
+blacklist lxfb
+blacklist matroxfb_base
+blacklist neofb
+blacklist nvidiafb
+blacklist pm2fb
+blacklist s1d13xxxfb
+blacklist sisfb
+blacklist tdfxfb
+blacklist vesafb
+blacklist vfb
+blacklist vt8623fb
+blacklist udlfb

roles/sudo-dom0-prompt/tasks/files/etc/security/limits.d/30-disable-coredump.conf

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+* hard core 0

roles/sudo-dom0-prompt/tasks/files/etc/skel/flathub.sh

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+flatpak remote-add --if-not-exists --user flathub https://dl.flathub.org/repo/flathub.flatpakrepo
+systemctl enable --user --now update-user-flatpaks.timer

roles/sudo-dom0-prompt/tasks/files/etc/ssh/ssh_config.d/10-custom.conf

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+GSSAPIAuthentication no
+VerifyHostKeyDNS yes

roles/sudo-dom0-prompt/tasks/files/etc/sudoers.d/qubes

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+Defaults !requiretty
+user ALL=(ALL) ALL
+
+# vim: ft=sudoers

roles/sudo-dom0-prompt/tasks/files/etc/sysctl.d/99-workstation.conf

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+
+# https://madaidans-insecurities.github.io/guides/linux-hardening.html#sysctl
+dev.tty.ldisc_autoload = 0
+
+# https://access.redhat.com/solutions/1985633
+# Seems dangerous.
+# Roseta need this though, so if you use it change it to 1.
+fs.binfmt_misc.status = 0
+
+# https://madaidans-insecurities.github.io/guides/linux-hardening.html#sysctl-userspace
+# Enable fs.protected sysctls.
+fs.protected_regular = 2
+fs.protected_fifos = 2
+fs.protected_symlinks = 1
+fs.protected_hardlinks = 1
+
+# https://madaidans-insecurities.github.io/guides/linux-hardening.html#core-dumps
+# Disable coredumps.
+# For additional safety, disable coredumps using ulimit and systemd too.
+kernel.core_pattern=|/bin/false
+fs.suid_dumpable = 0
+
+# Restrict dmesg to CAP_SYS_LOG.
+# https://www.kernel.org/doc/Documentation/sysctl/kernel.txt
+kernel.dmesg_restrict = 1
+
+# https://www.kernel.org/doc/Documentation/sysctl/kernel.txt
+# https://madaidans-insecurities.github.io/guides/linux-hardening.html#sysctl-kernel
+# https://kernsec.org/wiki/index.php/Bug_Classes/Kernel_pointer_leak
+# Restrict access to /proc.
+kernel.kptr_restrict = 2
+
+# Not needed, I don't do livepatching and reboot regularly.
+# On a workstation, this shouldn't be used at all. Don't live patch, just reboot.
+kernel.kexec_load_disabled = 1
+
+# https://madaidans-insecurities.github.io/guides/linux-hardening.html#sysctl
+# Basically, restrict eBPF to CAP_BPF.
+kernel.unprivileged_bpf_disabled = 1
+net.core.bpf_jit_harden = 2
+
+# Needed for Flatpak and Bubblewrap.
+kernel.unprivileged_userns_clone = 1
+
+# Disable ptrace. Not needed on workstations.
+kernel.yama.ptrace_scope = 3
+
+# https://madaidans-insecurities.github.io/guides/linux-hardening.html#sysctl
+# Restrict performance events from unprivileged users as much as possible.
+# We are using 4 here, since Ubuntu supports such a level.
+# Official Linux kernel documentation only says >= so it probably will work.
+kernel.perf_event_paranoid = 4
+
+# Disable io_uring
+# https://docs.kernel.org/admin-guide/sysctl/kernel.html#io-uring-disabled
+# https://security.googleblog.com/2023/06/learnings-from-kctf-vrps-42-linux.html
+# Note that this will make using Proxmox extremely annoying though, so you might wanna comment this out
+# on a Proxmox node.
+kernel.io_uring_disabled = 2
+
+# https://madaidans-insecurities.github.io/guides/linux-hardening.html#sysctl-kernel
+# Disable sysrq.
+kernel.sysrq = 0
+
+# https://www.stigviewer.com/stig/red_hat_enterprise_linux_6/2020-09-03/finding/V-217911
+# Not running a router here, so no redirects.
+net.ipv4.conf.*.send_redirects = 0
+net.ipv4.conf.*.accept_redirects = 0
+net.ipv6.conf.*.accept_redirects = 0
+
+# Check if the source of the IP address is reachable through the same interface it came in
+# Basic IP spoofing mitigation.
+net.ipv4.conf.*.rp_filter = 1
+
+# Do not respond to ICMP.
+net.ipv4.icmp_echo_ignore_all = 1
+net.ipv6.icmp.echo_ignore_all = 1
+
+# Ignore Bogus ICMP responses.
+net.ipv4.icmp_ignore_bogus_error_responses = 1
+
+# Enable IP Forwarding.
+# Needed for VM networking and whatnot.
+net.ipv4.ip_forward = 1
+net.ipv6.conf.all.forwarding = 1
+
+# https://www.stigviewer.com/stig/red_hat_enterprise_linux_6/2016-06-05/finding/V-38537
+# Ignore bogus icmp response.
+net.ipv4.icmp_ignore_bogus_error_responses = 1
+
+# Protection against time-wait assasination attacks.
+net.ipv4.tcp_rfc1337 = 1
+
+# Enable SYN cookies.
+# Basic SYN flood mitigation.
+net.ipv4.tcp_syncookies = 1 
+
+# https://access.redhat.com/sites/default/files/attachments/20150325_network_performance_tuning.pdf
+# Make sure TCP timestamp is enabled.
+net.ipv4.tcp_timestamps = 1
+
+# https://access.redhat.com/sites/default/files/attachments/20150325_network_performance_tuning.pdf
+# Disable TCP SACK.
+# We have good networking :)
+net.ipv4.tcp_sack = 0
+
+# No SACK, therefore no Duplicated SACK.
+net.ipv4.tcp_dsack = 0
+
+# Improve ALSR effectiveness for mmap.
+vm.mmap_rnd_bits = 32
+vm.mmap_rnd_compat_bits = 16
+
+# https://madaidans-insecurities.github.io/guides/linux-hardening.html#sysctl-kernel
+# Restrict userfaultfd to CAP_SYS_PTRACE.
+# https://bugs.archlinux.org/task/62780
+# Interestingly enough, Arch does not even have userfaultfd in their kernel, so it is
+# probably not used in the real world at all.
+vm.unprivileged_userfaultfd = 0

roles/sudo-dom0-prompt/tasks/files/etc/systemd/coredump.conf.d/disable.conf

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+[Coredump]
+Storage=none

roles/sudo-dom0-prompt/tasks/files/etc/systemd/system/NetworkManager.service.d/99-brace.conf

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+[Service]
+# Hardening
+CapabilityBoundingSet=CAP_NET_ADMIN CAP_DAC_OVERRIDE CAP_NET_RAW CAP_NET_BIND_SERVICE CAP_SETGID CAP_SETUID CAP_SYS_MODULE CAP_AUDIT_WRITE CAP_KILL CAP_SYS_CHROOT
+LockPersonality=true
+MemoryDenyWriteExecute=true
+#PrivateDevices=true #breaks tun usage
+#ProtectProc=invisible
+PrivateTmp=yes
+ProtectClock=true
+ProtectControlGroups=true
+ProtectHome=read-only
+ProtectKernelLogs=true
+#ProtectKernelModules=true
+#ProtectSystem=strict
+#ReadOnlyPaths=/etc/NetworkManager
+ReadOnlyPaths=-/home
+#ReadWritePaths=-/etc/NetworkManager/system-connections
+ReadWritePaths=-/etc/sysconfig/network-scripts
+ReadWritePaths=/var/lib/NetworkManager
+ReadWritePaths=-/var/run/NetworkManager
+ReadWritePaths=-/run/NetworkManager
+RemoveIPC=true
+RestrictNamespaces=true
+RestrictRealtime=true
+RestrictSUIDSGID=true
+SystemCallArchitectures=native
+SystemCallFilter=@system-service
+UMask=0077

roles/sudo-dom0-prompt/tasks/files/etc/systemd/user/update-user-flatpaks.service

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+[Unit]
+Description=Update user Flatpaks
+
+[Service]
+Type=oneshot
+ExecStart=/usr/bin/flatpak --user update -y

roles/sudo-dom0-prompt/tasks/files/etc/systemd/user/update-user-flatpaks.timer

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+[Unit]
+Description=Update user Flatpaks daily
+
+[Timer]
+OnCalendar=daily
+Persistent=true
+
+[Install]
+WantedBy=timers.target

roles/sudo-dom0-prompt/tasks/files/etc/systemd/zram-generator.conf

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+[zram0]
+zram-fraction = 1
+max-zram-size = 8192
+compression-algorithm = zstd

roles/sudo-dom0-prompt/tasks/files/etc/xdg-desktop-portal/portals.conf

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+[preferred]
+default=gtk;

roles/sudo-dom0-prompt/tasks/main.yaml

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+- name: Setup passwordless sudo
+  hosts: 127.0.0.1
+  connection: local
+  tasks:
+   - name: Check that the sudo-dom0-prompt exists
+     stat:
+       path: '/etc/authselect/custom/sudo-dom0-prompt'
+     register: stat_result
+
+   - name: Create authselect profile
+     shell: authselect create-profile sudo-dom0-prompt --base-on=sssd --symlink-meta --symlink-pam
+     when: not stat_result.stat.exists
+   - name: Copy authselect file
+     ansible.builtin.copy:
+      src: '/etc/authselect/custom/sudo-dom0-prompt/system-auth'
+      dest: '/etc/authselect/custom/sudo-dom0-prompt/system-auth.original_aside'
+      mode: '0644'
+
+   - name: Copy authselect folder
+     ansible.builtin.copy:
+      src: '/etc/authselect/system-auth'
+      dest: '/etc/authselect/custom/sudo-dom0-prompt'
+      mode: '0755'
+
+   - name: Copy authselect file
+     ansible.builtin.copy:
+      src: 'etc/authselect/custom/sudo-dom0-prompt/system-auth'
+      dest: '/etc/authselect/custom/sudo-dom0-prompt/system-auth'
+      mode: '0644'
+
+
+   - name: Select authselect profile
+     shell: authselect select custom/sudo-dom0-prompt
+
+   - name: Fix sudoers.d
+     ansible.builtin.copy:
+      src: 'etc/sudoers.d/qubes'
+      dest: '/etc/sudoers.d/qubes'
+      mode: '0440'
+
+   - name: Check that allow all rule doesn't exist
+     stat:
+       path: '/etc/polkit-1/rules.d/00-qubes-allow-all.rules'
+     register: allow_all_result
+
+   - name: Delete allow all rule
+     ansible.builtin.file:
+      path: '/etc/polkit-1/rules.d/00-qubes-allow-all.rules'
+      state: 'absent'
+     when: allow_all_result.stat.exists
+