mirror of
https://github.com/QubesOS/qubes-doc.git
synced 2024-12-11 16:54:31 -05:00
130 lines
5.0 KiB
Markdown
130 lines
5.0 KiB
Markdown
---
|
|
layout: doc
|
|
title: Config Files
|
|
permalink: /doc/config-files/
|
|
redirect_from:
|
|
- /en/doc/config-files/
|
|
- /doc/ConfigFiles/
|
|
- "/doc/UserDoc/ConfigFiles/"
|
|
- "/wiki/UserDoc/ConfigFiles/"
|
|
---
|
|
|
|
Configuration Files
|
|
===================
|
|
|
|
Qubes-specific VM config files
|
|
------------------------------
|
|
|
|
These files are placed in /rw, which survives a VM restart.
|
|
That way, they can be used to customize a single VM instead of all VMs based on the same template.
|
|
The scripts here all run as root.
|
|
|
|
- `/rw/config/rc.local` - script runs at VM startup.
|
|
Good place to change some service settings, replace config files with its copy stored in /rw/config, etc.
|
|
Example usage:
|
|
|
|
~~~
|
|
# Store bluetooth keys in /rw to keep them across VM restarts
|
|
rm -rf /var/lib/bluetooth
|
|
ln -s /rw/config/var-lib-bluetooth /var/lib/bluetooth
|
|
~~~
|
|
|
|
~~~
|
|
# Add entry to /etc/hosts
|
|
echo '127.0.0.1 example.com >> /etc/hosts
|
|
~~~
|
|
|
|
- `/rw/config/qubes-ip-change-hook` - script runs in NetVM after every external IP change and on "hardware" link status change.
|
|
|
|
- In ProxyVMs (or AppVMs with `qubes-firewall` service enabled), scripts placed in the following directories will be executed in the listed order followed by `qubes-firewall-user-script` after each firewall update.
|
|
Good place to write own custom firewall rules.
|
|
|
|
~~~
|
|
/etc/qubes/qubes-firewall.d
|
|
/rw/config/qubes-firewall.d
|
|
/rw/config/qubes-firewall-user-script
|
|
~~~
|
|
|
|
- `/rw/config/suspend-module-blacklist` - list of modules (one per line) to be unloaded before system goes to sleep.
|
|
The file is used only in a VM with PCI devices attached.
|
|
Intended for use with problematic device drivers.
|
|
|
|
- In NetVMs/ProxyVMs, scripts placed in `/rw/config/network-hooks.d` will be ran when configuring Qubes interfaces. For each script, the `command`, `vif`, `vif_type` and `ip` is passed as arguments (see `/etc/xen/scripts/vif-route-qubes`). For example, consider an PV AppVM `work` with IP `10.137.0.100` and `sys-firewall` as NetVM. Assuming it's Xen domain id is arbitrary `12` then, the following script located at `/rw/config/network-hooks.d/hook-100.sh` in `sys-firewall`:
|
|
~~~
|
|
#!/bin/bash
|
|
|
|
command="$1"
|
|
vif="$2"
|
|
vif_type="$3"
|
|
ip="$4"
|
|
|
|
if [ "$ip" == '10.137.0.100' ]; then
|
|
case "$command" in
|
|
online)
|
|
ip route add 192.168.0.100 via 10.137.0.100
|
|
;;
|
|
offline)
|
|
ip route del 192.168.0.100
|
|
;;
|
|
esac
|
|
fi
|
|
~~~
|
|
|
|
will be executed with arguments `online vif12.0 vif 10.137.0.100` when starting `work`. Please note that in case of HVM, the script will be called twice - once with vif_type `vif`, then with vif_type `vif_ioemu` (and different interface names). As long as the ioemu interface exists, it should be preferred (up to the hook script). When VM decide to use PV interface (vif_type `vif`), the ioemu one will be unplugged.
|
|
|
|
Note that scripts need to be executable (chmod +x) to be used.
|
|
|
|
Also, take a look at [bind-dirs](/doc/bind-dirs) for instructions on how to easily modify arbitrary system files in an AppVM and have those changes persist.
|
|
|
|
|
|
GUI and audio configuration in dom0
|
|
-----------------------------------
|
|
|
|
The GUI configuration file `/etc/qubes/guid.conf` in one of a few not managed by qubes-prefs or the Qubes Manager tool.
|
|
Sample config (included in default installation):
|
|
|
|
~~~
|
|
# Sample configuration file for Qubes GUI daemon
|
|
# For syntax go http://www.hyperrealm.com/libconfig/libconfig_manual.html
|
|
|
|
global: {
|
|
# default values
|
|
#allow_fullscreen = false;
|
|
#allow_utf8_titles = false;
|
|
#secure_copy_sequence = "Ctrl-Shift-c";
|
|
#secure_paste_sequence = "Ctrl-Shift-v";
|
|
#windows_count_limit = 500;
|
|
#audio_low_latency = false;
|
|
};
|
|
|
|
# most of setting can be set per-VM basis
|
|
|
|
VM: {
|
|
work: {
|
|
#allow_utf8_titles = true;
|
|
};
|
|
video-vm: {
|
|
#allow_fullscreen = true;
|
|
};
|
|
};
|
|
~~~
|
|
|
|
Currently supported settings:
|
|
|
|
- `allow_fullscreen` - allow VM to request its windows to go fullscreen (without any colorful frame).
|
|
|
|
**Note:** Regardless of this setting, you can always put a window into fullscreen mode in Xfce4 using the trusted window manager by right-clicking on a window's title bar and selecting "Fullscreen".
|
|
This functionality should still be considered safe, since a VM window still can't voluntarily enter fullscreen mode.
|
|
The user must select this option from the trusted window manager in dom0.
|
|
To exit fullscreen mode from here, press `alt` + `space` to bring up the title bar menu again, then select "Leave Fullscreen".
|
|
|
|
- `allow_utf8_titles` - allow the use of UTF-8 in window titles; otherwise, non-ASCII characters are replaced by an underscore.
|
|
|
|
- `secure_copy_sequence` and `secure_paste_sequence` - key sequences used to trigger secure copy and paste.
|
|
|
|
- `windows_count_limit` - limit on concurrent windows.
|
|
|
|
- `audio_low_latency` - force low-latency audio mode (about 40ms compared to 200-500ms by default).
|
|
Note that this will cause much higher CPU usage in dom0.
|
|
|