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sickcodes
Yet another `gtk initialization failed` issue
I'm sure you're tired of these by now!
Terminal output:
umount-all: /proc/mounts: fsname=/dev/root dir=/ type=ext2 opts=rw,noatime freq=0 passno=0
umount-all: /proc/mounts: fsname=/proc dir=/proc type=proc opts=rw,relatime freq=0 passno=0
umount-all: /proc/mounts: fsname=/sys dir=/sys type=sysfs opts=rw,relatime freq=0 passno=0
umount-all: /proc/mounts: fsname=/dev dir=/dev type=devtmpfs opts=rw,relatime,size=617076k,nr_inodes=154269,mode=755,inode64 freq=0 passno=0
umount-all: /proc/mounts: fsname=/dev/pts dir=/dev/pts type=devpts opts=rw,relatime,mode=600,ptmxmode=000 freq=0 passno=0
umount-all: /proc/mounts: fsname=shmfs dir=/dev/shm type=tmpfs opts=rw,relatime,inode64 freq=0 passno=0
umount-all: /proc/mounts: fsname=tmpfs dir=/run type=tmpfs opts=rw,nosuid,relatime,size=249964k,mode=755,inode64 freq=0 passno=0
umount-all: /proc/mounts: fsname=/dev/sda2 dir=/sysroot type=vfat opts=rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,utf8,errors=remount-ro freq=0 passno=0
umount-all: /proc/mounts: fsname=/dev/sda1 dir=/sysroot/ESP type=vfat opts=rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,utf8,errors=remount-ro freq=0 passno=0
commandrvf: stdout=n stderr=y flags=0x0
commandrvf: umount /sysroot/ESP
commandrvf: stdout=n stderr=y flags=0x0
commandrvf: umount /sysroot
libguestfs: trace: umount_all = 0
libguestfs: trace: shutdown
libguestfs: trace: shutdown = 0
libguestfs: trace: close
libguestfs: closing guestfs handle 0x5640075452a0 (state 0)
### cleaning up ...
libguestfs: trace: close
libguestfs: closing guestfs handle 0x5637ea2472a0 (state 2)
libguestfs: trace: internal_autosync
guestfsd: => umount_all (0x2f) took 0.11 secs
guestfsd: <= internal_autosync (0x11a) request length 40 bytes
umount-all: /proc/mounts: fsname=/dev/root dir=/ type=ext2 opts=rw,noatime freq=0 passno=0
umount-all: /proc/mounts: fsname=/proc dir=/proc type=proc opts=rw,relatime freq=0 passno=0
umount-all: /proc/mounts: fsname=/sys dir=/sys type=sysfs opts=rw,relatime freq=0 passno=0
umount-all: /proc/mounts: fsname=/dev dir=/dev type=devtmpfs opts=rw,relatime,size=617076k,nr_inodes=154269,mode=755,inode64 freq=0 passno=0
umount-all: /proc/mounts: fsname=/dev/pts dir=/dev/pts type=devpts opts=rw,relatime,mode=600,ptmxmode=000 freq=0 passno=0
umount-all: /proc/mounts: fsname=shmfs dir=/dev/shm type=tmpfs opts=rw,relatime,inode64 freq=0 passno=0
umount-all: /proc/mounts: fsname=tmpfs dir=/run type=tmpfs opts=rw,nosuid,relatime,size=249964k,mode=755,inode64 freq=0 passno=0
commandrvf: stdout=n stderr=y flags=0x0
commandrvf: udevadm --debug settle -E /dev/sdb
No filesystem is currently mounted on /sys/fs/cgroup.
Failed to determine unit we run in, ignoring: No data available
commandrvf: stdout=n stderr=y flags=0x0
commandrvf: udevadm --debug settle -E /dev/sda
No filesystem is currently mounted on /sys/fs/cgroup.
Failed to determine unit we run in, ignoring: No data available
fsync /dev/sda
libguestfs: trace: internal_autosync = 0
libguestfs: sending SIGTERM to process 890
libguestfs: qemu maxrss 265900K
libguestfs: command: run: rm
libguestfs: command: run: \ -rf /tmp/libguestfszE9isf
libguestfs: command: run: rm
libguestfs: command: run: \ -rf /tmp/libguestfsfOR2qX
DEVICE_MODEL,SERIAL,BOARD_SERIAL,UUID,MAC_ADDRESS,WIDTH,HEIGHT,KERNEL_ARGS
"iMacPro1,1","C02GJ0PYHX87","C021414054NJG361F","C2E3A882-9A2F-4961-A322-E8B32A0886BC","40:C7:11:99:07:13","1920","1080",""
DEVICE_MODEL SERIAL BOARD_SERIAL UUID MAC_ADDRESS WIDTH HEIGHT KERNEL_ARGS
iMacPro1,1 C02GJ0PYHX87 C021414054NJG361F C2E3A882-9A2F-4961-A322-E8B32A0886BC 40:C7:11:99:07:13 1920 1080
ssh-keygen: generating new host keys: RSA ECDSA ED25519
nohup: appending output to 'nohup.out'
++ id -u
++ id -g
+ sudo chown 1000:1000 /dev/kvm
++ id -u
++ id -g
+ sudo chown -R 1000:1000 /dev/snd
+ [[ 4 = max ]]
+ [[ 4 = half ]]
++ id -u
++ id -g
+ sudo chown -R 1000:1000 /dev/snd
+ exec qemu-system-x86_64 -m 4000 -cpu Penryn,vendor=GenuineIntel,+invtsc,vmware-cpuid-freq=on,+ssse3,+sse4.2,+popcnt,+avx,+aes,+xsave,+xsaveopt,check, -machine q35,accel=kvm:tcg -smp 4,cores=4 -usb -device usb-kbd -device usb-tablet -device 'isa-applesmc,osk=ourhardworkbythesewordsguardedpleasedontsteal(c)AppleComputerInc' -drive if=pflash,format=raw,readonly=on,file=/home/arch/OSX-KVM/OVMF_CODE.fd -drive if=pflash,format=raw,file=/home/arch/OSX-KVM/OVMF_VARS-1024x768.fd -smbios type=2 -audiodev alsa,id=hda -device ich9-intel-hda -device hda-duplex,audiodev=hda -device ich9-ahci,id=sata -drive id=OpenCoreBoot,if=none,snapshot=on,format=qcow2,file=/home/arch/OSX-KVM/OpenCore/OpenCore.qcow2 -device ide-hd,bus=sata.2,drive=OpenCoreBoot -device ide-hd,bus=sata.3,drive=InstallMedia -drive id=InstallMedia,if=none,file=/home/arch/OSX-KVM/BaseSystem.img,format=qcow2 -drive id=MacHDD,if=none,file=/home/arch/OSX-KVM/mac_hdd_ng.img,format=qcow2 -device ide-hd,bus=sata.4,drive=MacHDD -netdev user,id=net0,hostfwd=tcp::10022-:22,hostfwd=tcp::5900-:5900, -device vmxnet3,netdev=net0,id=net0,mac=52:54:00:09:49:17 -monitor stdio -boot menu=on -vga vmware
QEMU 7.1.0 monitor - type 'help' for more information
(qemu) ALSA lib confmisc.c:855:(parse_card) cannot find card '0'
ALSA lib conf.c:5180:(_snd_config_evaluate) function snd_func_card_inum returned error: No such file or directory
ALSA lib confmisc.c:422:(snd_func_concat) error evaluating strings
ALSA lib conf.c:5180:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1334:(snd_func_refer) error evaluating name
ALSA lib conf.c:5180:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5703:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
ALSA lib confmisc.c:855:(parse_card) cannot find card '0'
ALSA lib conf.c:5180:(_snd_config_evaluate) function snd_func_card_inum returned error: No such file or directory
ALSA lib confmisc.c:422:(snd_func_concat) error evaluating strings
ALSA lib conf.c:5180:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1334:(snd_func_refer) error evaluating name
ALSA lib conf.c:5180:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5703:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize DAC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
audio: Failed to create voice `dac'
ALSA lib confmisc.c:855:(parse_card) cannot find card '0'
ALSA lib conf.c:5180:(_snd_config_evaluate) function snd_func_card_inum returned error: No such file or directory
ALSA lib confmisc.c:422:(snd_func_concat) error evaluating strings
ALSA lib conf.c:5180:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1334:(snd_func_refer) error evaluating name
ALSA lib conf.c:5180:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5703:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize ADC
alsa: Failed to open 'default':
alsa: Reason: No such file or directory
ALSA lib confmisc.c:855:(parse_card) cannot find card '0'
ALSA lib conf.c:5180:(_snd_config_evaluate) function snd_func_card_inum returned error: No such file or directory
ALSA lib confmisc.c:422:(snd_func_concat) error evaluating strings
ALSA lib conf.c:5180:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1334:(snd_func_refer) error evaluating name
ALSA lib conf.c:5180:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5703:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize ADC
alsa: Failed to open 'default':
alsa: Reason: No such file or directory
audio: Failed to create voice 'adc'
gtk initialization failed
Command used:
docker run -it \
--device /dev/kvm \
-p 50922:10022 \
-v /tmp/.X11-unix:/tmp/.X11-unix \
-e "DISPLAY=${DISPLAY:-:0.0}" \
-e GENERATE_UNIQUE=true \
-e MASTER_PLIST_URL='https://raw.githubusercontent.com/sickcodes/osx-serial-generator/master/config-custom.plist' \
sickcodes/docker-osx:monterey
Uname:
Linux fedora 6.0.11-300.fc37.x86_64 #1 SMP PREEMPT_DYNAMIC Fri Dec 2 20:47:45 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
Neofetch:
.',;::::;,'. harry@fedora
.';:cccccccccccc:;,. ------------
.;cccccccccccccccccccccc;. OS: Fedora Linux 37 (Cinnamon) x86_64
.:cccccccccccccccccccccccccc:. Host: HP 255 G7 Notebook PC
.;ccccccccccccc;.:dddl:.;ccccccc;. Kernel: 6.0.11-300.fc37.x86_64
.:ccccccccccccc;OWMKOOXMWd;ccccccc:. Uptime: 2 hours, 11 mins
.:ccccccccccccc;KMMc;cc;xMMc:ccccccc:. Packages: 2063 (rpm), 8 (flatpak)
,cccccccccccccc;MMM.;cc;;WW::cccccccc, Shell: bash 5.2.9
:cccccccccccccc;MMM.;cccccccccccccccc: Resolution: 1920x1080
:ccccccc;oxOOOo;MMM0OOk.;cccccccccccc: DE: Cinnamon 5.4.12
cccccc:0MMKxdd:;MMMkddc.;cccccccccccc; WM: Mutter
ccccc:XM0';cccc;MMM.;cccccccccccccccc' WM Theme: Adwaita
ccccc;MMo;ccccc;MMW.;ccccccccccccccc; Theme: Mint-Y-Dark-Aqua [GTK2/3]
ccccc;0MNc.ccc.xMMd:ccccccccccccccc; Icons: Mint-Y-Dark-Aqua [GTK2/3]
cccccc;dNMWXXXWM0::cccccccccccccc:, Terminal: gnome-terminal
cccccccc;.:odl:.;cccccccccccccc:,. CPU: AMD Ryzen 5 3500U with Radeon Vega Mobile Gfx (8) @ 2.100GHz
:cccccccccccccccccccccccccccc:'. GPU: AMD ATI Radeon Vega Series / Radeon Vega Mobile Series
.:cccccccccccccccccccccc:;,.. Memory: 2384MiB / 5867MiB
'::cccccccccccccc::;,.
Thanks in advance!
Disabling SELinux (temporarily) with the following command (as root):
echo 0 > /sys/fs/selinux/enforce
it works for me.
My system: Linux fedora 6.0.12-300.fc37.x86_64 #1 SMP PREEMPT_DYNAMIC Thu Dec 8 16:58:47 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
Ah and I'm using Podman and not Docker.
Not a great solution, but it could be a starting point to get a better solution.
Just a note that @grimaldello’s solution didn’t work for me on Fedora Silverblue 37 (using podman). Still getting the same error as in the error report…
…
ALSA lib conf.c:5180:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5703:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2666:(snd_pcm_open_noupdate) Unknown PCM default
alsa: Could not initialize ADC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
audio: Failed to create voice `adc'
even though
getenforce
Disabled
System details:
OS: Fedora Linux 37.20221222.0 (Silverblue) x86_64
Host: Gigabyte Technology Co., Ltd. B550I AORUS PRO AX
Kernel: 6.0.14-300.fc37.x86_64
Uptime: 12 mins
Packages: 1517 (rpm), 104 (flatpak)
Shell: fish 3.5.1
Resolution: 3840x2160
DE: GNOME 43.2 (Wayland)
WM: Mutter
WM Theme: Adwaita
Theme: Adwaita [GTK2/3]
Icons: Adwaita [GTK2/3]
Terminal: BlackBox
CPU: AMD Ryzen 7 5700G with Radeon Graphics (16) @ 4.673GHz
GPU: AMD ATI Radeon Vega Series / Radeon Vega Mobile Series
Memory: 3882MiB / 63644MiB
Add
--privileged
after run. That will fix it.
The command should be:
sudo docker run --privileged -it
--device /dev/kvm
-p 50922:10022
-v /tmp/.X11-unix:/tmp/.X11-unix
-e "DISPLAY=${DISPLAY:-:0.0}"
-e GENERATE_UNIQUE=true
-e MASTER_PLIST_URL='https://raw.githubusercontent.com/sickcodes/osx-serial-generator/master/config-custom.plist'
sickcodes/docker-osx:monterey
Right now I am installing Monterey, and I had the same error as you guys but adding --privileged after run in the command solved the issue. Fedora 37, Mate Desktop here, HP Z420, Intel Xeon E-1620, 40 Gb ECC RAM, AMD Radeon RX570 4 Gb GPU, Samsung EVO 500 Gb SSD, AOC 32" 2K monitor.
@crojack Thanks, but on Fedora Silverblue 37 with podman, at least, when I run:
sudo podman run --privileged -it \
--device /dev/kvm \
-p 50922:10022 \
-v /tmp/.X11-unix:/tmp/.X11-unix \
-e "DISPLAY=${DISPLAY:-:0.0}" \
-e GENERATE_UNIQUE=true \
-e MASTER_PLIST_URL='https://raw.githubusercontent.com/sickcodes/osx-serial-generator/master/config-custom.plist' \
sickcodes/docker-osx:ventura
It still errors with:
+ exec qemu-system-x86_64 -m 4000 -cpu Penryn,vendor=GenuineIntel,+invtsc,vmware-cpuid-freq=on,+ssse3,+sse4.2,+popcnt,+avx,+aes,+xsave,+xsaveopt,check, -machine q35,accel=kvm:tcg -smp 4,cores=4 -usb -device usb-kbd -device usb-tablet -device 'isa-applesmc,osk=ourhardworkbythesewordsguardedpleasedontsteal(c)AppleComputerInc' -drive if=pflash,format=raw,readonly=on,file=/home/arch/OSX-KVM/OVMF_CODE.fd -drive if=pflash,format=raw,file=/home/arch/OSX-KVM/OVMF_VARS-1024x768.fd -smbios type=2 -audiodev alsa,id=hda -device ich9-intel-hda -device hda-duplex,audiodev=hda -device ich9-ahci,id=sata -drive id=OpenCoreBoot,if=none,snapshot=on,format=qcow2,file=/home/arch/OSX-KVM/OpenCore/OpenCore.qcow2 -device ide-hd,bus=sata.2,drive=OpenCoreBoot -device ide-hd,bus=sata.3,drive=InstallMedia -drive id=InstallMedia,if=none,file=/home/arch/OSX-KVM/BaseSystem.img,format=qcow2 -drive id=MacHDD,if=none,file=/home/arch/OSX-KVM/mac_hdd_ng.img,format=qcow2 -device ide-hd,bus=sata.4,drive=MacHDD -netdev user,id=net0,hostfwd=tcp::10022-:22,hostfwd=tcp::5900-:5900, -device vmxnet3,netdev=net0,id=net0,mac=52:54:00:09:49:17 -monitor stdio -boot menu=on -vga vmware
Authorization required, but no authorization protocol specified
QEMU 7.1.0 monitor - type 'help' for more information
(qemu) ALSA lib pcm_dmix.c:999:(snd_pcm_dmix_open) unable to open slave
alsa: Could not initialize DAC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
ALSA lib pcm_dmix.c:999:(snd_pcm_dmix_open) unable to open slave
alsa: Could not initialize DAC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
audio: Failed to create voice `dac'
ALSA lib pcm_dsnoop.c:566:(snd_pcm_dsnoop_open) unable to open slave
alsa: Could not initialize ADC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
ALSA lib pcm_dsnoop.c:566:(snd_pcm_dsnoop_open) unable to open slave
alsa: Could not initialize ADC
alsa: Failed to open `default':
alsa: Reason: No such file or directory
audio: Failed to create voice `adc'
Update: The very first issue I see in the output is a warning that might be relevant (since Fedora Silverblue is an immutable distribution):
supermin: warning: /usr/bin/augenrules: Permission denied (ignored)
Some distro files are not public readable, so supermin cannot copy them
into the appliance. This is a problem with your Linux distro. Please ask
your distro to stop doing pointless security by obscurity.
You can ignore these warnings. You *do not* need to use sudo.
supermin: warning: /usr/lib/dbus-1.0/dbus-daemon-launch-helper: Permission denied (ignored)
supermin: warning: /usr/lib/ssh/ssh-keysign: Permission denied (ignored)
supermin: warning: /usr/share/factory/etc/crypttab: Permission denied (ignored)
supermin: warning: /usr/share/factory/etc/gshadow: Permission denied (ignored)
I’m able to get the QEMU window to launch on Fedora Silverblue 37 with
sudo podman run --privileged -it --device /dev/kvm --device /dev/snd \
-p 50922:10022 \
-v $XDG_RUNTIME_DIR/$WAYLAND_DISPLAY:/tmp/$WAYLAND_DISPLAY \
-e XDG_RUNTIME_DIR=/tmp -e XDG_SESSION_TYPE=wayland \
-e WAYLAND_DISPLAY="${WAYLAND_DISPLAY:-wayland-0}" \
-e GDK_BACKEND=wayland -e CLUTTER_BACKEND=wayland \
-e DISPLAY=":1" -e XDG_SESSION_TYPE=wayland -e RAM=16 \
-e QT_QPA_PLATFORM=wayland -e GENERATE_UNIQUE=true \
-e MASTER_PLIST_URL='https://raw.githubusercontent.com/sickcodes/osx-serial-generator/master/config-custom.plist' sickcodes/docker-osx:ventura
When I’ve also set permissions with:
chmod 777 $XDG_RUNTIME_DIR/wayland-*
But the initial launch still fails.
same here with fedora 37
+ sudo chown -R 1000:1000 /dev/snd
+ exec qemu-system-x86_64 -m 4000 -cpu Penryn,vendor=GenuineIntel,+invtsc,vmware-cpuid-freq=on,+ssse3,+sse4.2,+popcnt,+avx,+aes,+xsave,+xsaveopt,check, -machine q35,accel=kvm:tcg -smp 4,cores=4 -usb -device usb-kbd -device usb-tablet -device 'isa-applesmc,osk=ourhardworkbythesewordsguardedpleasedontsteal(c)AppleComputerInc' -drive if=pflash,format=raw,readonly=on,file=/home/arch/OSX-KVM/OVMF_CODE.fd -drive if=pflash,format=raw,file=/home/arch/OSX-KVM/OVMF_VARS-1024x768.fd -smbios type=2 -audiodev alsa,id=hda -device ich9-intel-hda -device hda-duplex,audiodev=hda -device ich9-ahci,id=sata -drive id=OpenCoreBoot,if=none,snapshot=on,format=qcow2,file=/home/arch/OSX-KVM/OpenCore/OpenCore.qcow2 -device ide-hd,bus=sata.2,drive=OpenCoreBoot -device ide-hd,bus=sata.3,drive=InstallMedia -drive id=InstallMedia,if=none,file=/home/arch/OSX-KVM/BaseSystem.img,format=qcow2 -drive id=MacHDD,if=none,file=/home/arch/OSX-KVM/mac_hdd_ng.img,format=qcow2 -device ide-hd,bus=sata.4,drive=MacHDD -netdev user,id=net0,hostfwd=tcp::10022-:22,hostfwd=tcp::5900-:5900, -device vmxnet3,netdev=net0,id=net0,mac=52:54:00:09:49:17 -monitor stdio -boot menu=on -vga vmware
Authorization required, but no authorization protocol specified
QEMU 7.1.0 monitor - type 'help' for more information
(qemu) gtk initialization failed
Add
--privileged
after run. That will fix it.
The command should be:
sudo docker run --privileged -it --device /dev/kvm -p 50922:10022 -v /tmp/.X11-unix:/tmp/.X11-unix -e "DISPLAY=${DISPLAY:-:0.0}" -e GENERATE_UNIQUE=true -e MASTER_PLIST_URL='https://raw.githubusercontent.com/sickcodes/osx-serial-generator/master/config-custom.plist' sickcodes/docker-osx:monterey
Right now I am installing Monterey, and I had the same error as you guys but adding --privileged after run in the command solved the issue. Fedora 37, Mate Desktop here, HP Z420, Intel Xeon E-1620, 40 Gb ECC RAM, AMD Radeon RX570 4 Gb GPU, Samsung EVO 500 Gb SSD, AOC 32" 2K monitor.
Running all as root is not a solution. Solution would be to identify what needs privileges and think about how to satisfy the need
Same for me on Arch
Linux lenovo 6.1.6-arch1-1 #1 SMP PREEMPT_DYNAMIC Sat, 14 Jan 2023 13:09:35 +0000 x86_64 GNU/Linux
I was thinking about this project today and the fact that I wait since months to use this solution. But nobody want to come to my issue
Unauthorized System Access: Allowing any host or user to connect to the X server without authentication creates a significant vulnerability. Malicious individuals can exploit this access to gain unauthorized control over your system and execute malicious commands.
Malware Execution: Unrestricted access provides an avenue for the execution of malicious code or malware on your system. This can lead to unauthorized activities, data theft, system damage, or the spread of malware to other connected systems.
Data Breaches: Uncontrolled access to the X server exposes sensitive information displayed by X applications. This includes personal data, confidential business information, and any other data processed or displayed through graphical interfaces. Unauthorized data access can result in reputational damage, legal consequences, and financial losses.
To mitigate these security risks, follow these best practices for X server access control:
Identify and Whitelist Trusted Hosts: Take the time to identify the specific hosts that require access to your X server. Consider the purpose and requirements of each host in your network. This could include trusted workstations, servers, or other devices that need to run X applications or access the graphical interface. By carefully evaluating and identifying these hosts, you can create a list of authorized entities.
Whitelist Only Authorized Hosts: Once you have identified the trusted hosts, whitelist them by configuring the access control settings of the X server. Use commands such as "xhost +hostname" or "xhost +SI:localuser:username@hostname" to allow only these authorized hosts to connect to the X server. This effectively restricts access to the X server to the specified entities, preventing unauthorized connections.