Questions tagged [linux]
A family of Unix-like operating systems using the Linux kernel. If your question is about a certain distribution only, use a more specific tag.
58,800
questions
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2
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21
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How to detect if “/dev/mapper/dev0” exists in Bash?
I'm trying to make a decryption software for my NAS, so that it automatically mounts all drives and decrypts them.
But, I need to know if the sudo cryptsetup luksOpen /dev/blahblahblah dev0 exists ...
0
votes
1
answer
16
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Changed color settings of ble.sh bash terminal are not applied
I installed the ble.sh from this git repository https://github.com/akinomyoga/ble.sh.git, but i want to customize the color settings with ble-face commands.
What happens is that, I changed the color ...
0
votes
1
answer
20
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iptables not dropping udp port for exact ip address
My iptables rules are as follows, defined ip and ports are examples:
-P INPUT ACCEPT
-P FORWARD ACCEPT
-P OUTPUT ACCEPT
-N f2b
-A INPUT -p tcp -m multiport --dports 80,443 -j f2b
-A INPUT -d 8.8.8.8/...
1
vote
1
answer
34
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Is there a way to use Linux-like symlinks on a Windows computer?
My application is writing logs to a directory, which is hardcoded "Logs" and is present under the runtime directory of my application.
Today, a customer asked me if it was possible to have ...
0
votes
1
answer
7
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Converting Linux partition to crypto_LUKS
I'm currently working on RHEL 8.9 and attempting to harden a VM of mine, and looking into applying the crypto_LUKS encryption to my active partitions. When I check my partitions using the blkid ...
0
votes
1
answer
11
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Routing a cgroup to a different table and back to the main table
I want to have the following setup. There are two interfaces: wlan0 and wg0. wlan0 is the default, wg0 is a wireguard interface, configured manually.
By default traffic goes to wlan0. But if a process ...
1
vote
0
answers
15
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SSDP Discovery not working for IP address other than WSL's instance IP
I am trying to port a process from Windows to WSL/Linux. Earlier, two Windows process were communicating through TCP connection after successful SSDP discovery. Now, I want similar communication to ...
0
votes
1
answer
13
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Use a subset of system fonts for LibreOffice, on GNU/Linux
I have a lot of system fonts in my GNU/Linux distribution (in /usr/share/fonts/): most of them are useless for me when I'm using LibreOffice to write or to open a document.
I'm using my distribution ...
0
votes
0
answers
19
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Tmux session disconnect does not preserve session content when reconnecting
I need to copy a 200gb+ file to multiple servers from one server. I have a sftp transfer running in multiple tmux sessions from the one server.
When I press ctrl+b, d to exit the tmux instance and ...
0
votes
0
answers
12
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SSH over Powershell: read user user groups and assign to other user
We try to administrate our Linux-Servers with Powershell-Scripts.
I'm working on a script to automatically create user.
In my thoughts I extract the groups of a certain user und assign them to the new ...
4
votes
4
answers
985
views
why does assigning a var with command substitution then echoing that var always fail?
Why does the following not work in bash?
# ensure TEST is unset
export TEST=''
echo "Hello world!" > test.txt && TEST="$(cat test.txt)" echo "$TEST"
It always ...
-1
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0
answers
31
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Quarantining kernel-level games onto a VM
Let's say I have drive running Linux and a partition of that storing a VM containing a game like Valorant using. Is there a way for processes within the VM to break through the virtualization layer ...
0
votes
0
answers
12
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Remapping Artist Shortcut Remote in Linux
I am using the XP Pen Shortcut Remote that comes with the Deco Pro tablet, it has a dial and 10 keys. Each key (and the dial) is mapped to a keyboard stroke by default. For example pressing the top ...
0
votes
0
answers
24
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SSO authentication for Shiny Server
We have been using Shiny Server Pro with LDAP authentication. Now, we want to use Single Sign On (SSO) based service with Shiny Server Pro or the open source version (if possible).
I have looked in ...
0
votes
0
answers
16
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Alternative for transfer.sh [closed]
I need to transfer something from one machine to another. The problem is that the machine from which I need to send something does not have a desktop and is not in the same network as the other ...
0
votes
0
answers
15
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Cannot setup pam_oath with Yubikey: OTP not authorized to login as user
So, what I want is to login to system with Yubikey as a second factor or the only factor.
I use Linux Mint 21.3, my Yubikey is 5C NFC.
My /etc/pam.d/common-auth:
auth [success=1 default=ignore] ...
1
vote
1
answer
29
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Keep command line visible while scrolling
Unsure what the best place to tackle this would be .bashrc? Using different shell? Some fancy terminal emulator?
Basically, I just want to keep seeing the command line / the last line of the terminal ...
0
votes
1
answer
29
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How does RAID 5 handle unrecoverable sectors on a HDD
I'm going to set up a RAID 5 on 4 hard drives on my ubuntu system. I plan to use ext4 on a logic volume.
Suppose one disk reports an unrecoverable sector. How would RAID 5 handle this? My ...
0
votes
1
answer
31
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How to set up port forwarding to guest VM using iptables
I am trying to do a proof of concept for port forwarding to a libvirt guest server.
The following are the variables I use for generalization:
port=500 # Arbitrary port, for proof of ...
0
votes
1
answer
26
views
How to change boot_drive/operating_system from within that operating system?
I'm trying to figure out if it's possible to change boot drive or operating system that PC will boot into during the next startup but from within that operating system (!) as oppose to just going into ...
0
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0
answers
17
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Brother HL-L2325DW Printer on Arch Linux Will Not Print, Despite Showing That the Job Has Completed
As the title says, I cannot get my printer (A Brother HL-L2325DW) to print. It beeps at me a few times once it receives my print job, and CUPS states that the print job is complete, but beyond the few ...
0
votes
0
answers
18
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Seagate HDD spins up - Not understanding why (WD does not)
I have built a NAS with TrueNAS at my home. I access the data around once every week (twice, as I will run a ZFS scrub once per week), hence I prefer to spin-down the disks when I do not access the ...
0
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2
answers
68
views
Remove all files with name starting with single quote
I need to delete all files with these names (the quotes are part of the name):
'index.html?some-query-string'
I tried with:
rm \'index.html?*\'
I get this error:
rm: cannot remove ''\''index.html?*'...
0
votes
3
answers
41
views
Reassemble RAID0 array despite error
My ancient Synology CS407 was setup (deliberately) with RAID0 and I didn't have a backup system set up yet. There are four 1TB drives making a 4TB volume. One drive had a failure which led to the on-...
0
votes
0
answers
17
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Why would sudo complain about DNS name resolution? [duplicate]
I'm running on Ubuntu 22 Linux. When I try to manually fix my /etc/resolv.conf file using
sudo vi /etc/resolv.conf
# or
sudo cp $HOME/tmp/working-resolv.conf /etc/resolv.conf
The command appears to ...
0
votes
0
answers
26
views
Appending File Path (With Spaces) to $PATH Variable Removes the Spaces
I have the following command in my .profile file: PATH=$PATH:"/mnt/c/Users/spenpal/AppData/Local/Programs/Microsoft VS Code/bin/".
When I start up my terminal and try echo $PATH, I get the ...
1
vote
0
answers
30
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Linux won't boot with f2fs
I recently had a hardware failure and replaced by old HDD with an SSD. Therefore I used f2fs for my root partition. But now I am unable to boot properly due to fsck failure. I keep getting the ...
1
vote
0
answers
13
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Discrete graphics card doesn't clock down in a laptop
Recently, I've noticed that sometimes my laptop runs very hot despite nothing happening.
Nothing was using the CPU and I found that the graphics card was the culprit (see screenshot below).
Note that ...
0
votes
0
answers
14
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VMware Workstation linux installation stuck at "clocksource: Switched to clocksource tsc"
During installation XCP-ng 8.2.1, installation stuck at "clocksource: Switched to clocksource tsc".
I had the same problem with Virtual Box but this command "vboxmanage setextradata &...
1
vote
0
answers
32
views
+50
GNOME 44.10: Drag-and-drop breaks Alt + Tab window switching in numerous ways
I am running a pretty fresh install of a Bluefin-based Fedora Silverblue atomic desktop with a GNOME shell using Wayland, and mostly Flatpak applications. (For what it's worth, I recently migrated my ...
6
votes
1
answer
706
views
Is it possible to recover bitlocker using a USB drive?
So I've got a laptop currently dual booting windows and linux. I primarily use the linux installation, but I have certain things that need to be on windows. Currently I have bitlocker set up on ...
0
votes
0
answers
39
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How to get Intel i210at NIC ethernet card working on Linux
After my Ethernet port (on asus prime z370-p) mysteriously stopped working, I bought this PCIE ethernet card.
I received this. Looks different than advertised, but probably equivalent?
I am now ...
0
votes
0
answers
17
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Snap on Arch Linux : Cannot create user directory
I try running termius in Arch using snap, with snap run termius-app, but it says :
2024/03/23 21:28:19.783334 cmd_run.go:1046: WARNING: cannot create user data directory: cannot create snap home dir: ...
-1
votes
1
answer
37
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Operating system not found after installing linux mint
I installed linux mint along side windows 10 on an old laptop from 2012 (i7-2670QM),
after installation,
removed mint flash drive -> enter -> laptop rebbot,
and getting Operating sytem not found
...
0
votes
1
answer
12
views
Booting a LUKS-encrypted drive with a flash drive, falling back to keyboard
I have some systems configured using GRUB as my bootloader, with an unencrypted boot partition and everything else using LVM-on-LUKS. Right now, the only way to unlock the system is for me to ...
0
votes
0
answers
16
views
Converting WireGuard from docker to k8s, handshake ok but no internet access
Problem: I have a working WireGuard setup in Docker (see guide: link) but am struggling to achieve internet access for clients when porting the configuration to Kubernetes with host networking. I can ...
0
votes
1
answer
69
views
Linux to Windows - smbclient works fine but mount.cifs does not
I am using a Ubuntu 22.04 guest in Hyper-V in Windows 11. I have created a file share and shared it for a local user ("shareuser"). I am trying to automatically mount it with cifs and ...
0
votes
1
answer
23
views
How can I enable Wayland's autorotation in Plasma 6?
I've recently updated from KDE 5 to KDE 6 on OpenSUSE Tumbleweed on a convertible (Lenovo Thinkpad X390 Yoga). Before the update, the automatic screen rotation in "tablet mode" (apparently ...
0
votes
0
answers
12
views
How do I get a Linux system with legacy mouse support to accept my KVM switch with absolute mouse mode?
One of my customers has a Linux system with the following details:
Suse Linux 15
I plugged in a KVM-over-IP device from Raritan (DKX4-101) which introduces a USB-device with Keyboard + mouse in ...
1
vote
1
answer
18
views
Why Linux chooses shorter prefix? (strongSwan, table 220)
I'm having 2 following routes:
# ip ro show table 0|grep 10.250
10.250.0.0/16 via 10.80.1.1 dev ens5 table 220 proto static src 10.80.1.76
10.250.1.4 via 10.80.1.45 dev ens5
The first one comes ...
0
votes
0
answers
17
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Properly switch Caps Lock and Esc
I'm on KDE Neon 5.27 with X11, and the settings app has an option "Swap Esc and Caps Lock". I've been using this for a while, but some applications still think they're not swapped. I have to ...
1
vote
1
answer
13
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How to configure junest to mount a specific directory to chroot?
junest automatically mounts /home/$user/ which is really nice, but I also want to mount for example /srv/public or /mnt/something so I can use it, inside a junest environment, how could I do this?
0
votes
0
answers
22
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how to use curl for single sign website or page
I already written shell script but its exactly not working getting empty response it should first return token and also it should login then registry API
thats my task of shell script has to do
#!/bin/...
0
votes
0
answers
16
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Can i create a new root user with root priviliges when i have just access to the boot partition?
is there any way i can create a new root user when i have just access to the boot partition.
I have no access to / partition . This is just a question for my own lap. So don't worry.
I running an alma-...
0
votes
0
answers
28
views
Linux (xcp-ng) installation has around 40GB of MS basic file system
So, I am having this trouble to get rid of these 3 partition that my Lenovo Thinkcenter keep creating when I install XCP-NG.
fdisk -l output:
So, basically I tried to remove those by fdisk /dev/...
0
votes
1
answer
14
views
linux command line, rearrange djvu file to facilitate book index use in reader
To read books that have an index on my laptop or ereader, I like to make the first page in the reader/viewer be the first page of the text, so that the book's Index page numbers correspond directly ...
0
votes
1
answer
34
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How to simply cleanup a filename?
OS: Kubuntu 22.04.4 LTS x86_64
to display above:
neofetch --stdout |grep 'OS:'
.
How to simply cleanup a filename, not file contents?
by removing from a filename:
\n newlines
\t tabs
non printable ...
0
votes
0
answers
11
views
Unable to get to switch_root mode in CentOS 7
I am trying to reset the root password on my old drive, and I followed this instruction:
https://www.redhat.com/sysadmin/recover-root-passwd
However, instead of booting into a 'rescue' prompt as the ...
0
votes
1
answer
15
views
accessing the filesystem of the host from a docker container running in --privileged mode: unknown filesystem type 'LVM2_member'
I'm running a systemed docker container with ssh conection and now want to mount the host filesystem to gain access to it. ( don't worry this is just for demonstration purpose)
If i do
mount /dev/vda2 ...
-1
votes
1
answer
18
views
Moving all files in sub directories into a main directory
I have a directory called "public" that contains a thousand of subdirectories
eg:
public/63a/e9b/79a/file.pdf
public/64a/2cd/184/other_file.pdf
...
My aim is to move all the files ...