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.

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How to compile netfilter and iptables in linux kernel 2.6.15.4 with Slackware 10

I am new to kernel compiling and I need to compile the kernel module netfilter and the user program iptables into my linux kernel 2.6.15.4. My machine is running Slackware 10.2.0. I have researched in ...
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Configure 2 sshd services

I have the following task: Configure a ssh service so that user special cannot connect through it. Open a ssh server on port 2222 listening to 127.0.0.1. Limit this service so that just user special ...
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How do I remove a large partition from a LUKS encrypted logical volume group?

See the title. I want to remove a 2.7T partition (sda4) from my volume group to delete and split it up into 500G partitions for later use. # fdisk -l /dev/sda Disk /dev/sda: 4.6 TiB, 5000981077504 ...
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lvm2 thin pool “pool target too small”

I use dmeventd to monitor my thin logical volumes and increase their size when they become full through the usual thin_pool_autoextend_threshold mechanism. I believe that my problem was originally ...
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Connect to VGA console via SSH

I have Rock Pi which has HDMI output. Normally I see its console on connected monitor. I can also connect via SSH to this Pi. But I am looking for a way to SSH into this Pi and switch the view to the ...
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How to connect to a fixed IP address device with a different network portion than my local network?

My Actiontec WCB3000N has a fixed IP of 192.168.99.254 (or, at least, that's what it says on the side of the device). My LAN is 192.168.68.0 and when I try to direct my browser to 192.168.99.254, it ...
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availabe RAM using free command

I'm trying to find out what is the availbe RAM that can still be used in my raspberry pi 4a free -m result looking at the result it has available and free not sure which one says the availble RAM in ...
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How to configure httpd to listen to multiple ports?

My Web Server is running on CentOS and trying configure the web server where I can listen to www.example.com and www.example.com:8000. I believe the default port for www.example.com is 80 but I also ...
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Only the first item in UEFI boot order is visible in system boot menu

I have an Intel NUC8i7HVK running BIOS HNKBLi70.86A, with Arch Linux and Windows 10 on different partitions of a single M.2 drive. When I open the system boot menu, only the first item in the boot ...
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Why I can't run this programs in terminal?

Ubunntu 16.04 fresh updated. drwxrwxr-x 5 piotr piotr 4096 sep 14 02:59 platform-tools -rw-r--r-- 1 piotr piotr 17408 aug 16 13:09 PrimaryGPT.gpt -rwxr-xr-x 1 piotr piotr 201204 júl 15 2016 ...
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Giving NTFS (msftdata) drives permissions to allow Linux users to read, write and execute

I have a dual boot system with both an Ubuntu Server and Windows Server installation in the same physical machine with multiple other drives (An SSD and 2 HDD's). They both mount the same drives, ...
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Clone HDD with dd

I wanna clone a hdd but without loosing data from /home My current scheme is: [root@ns1 ~]# lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 512G 0 disk ...
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What is Ctrl+x on a linux terminal, exactly?

(tl;dr: long investigation. sort questions on the very end.) I just noticed that when I press super+some letters (e.g. command+n, or windowsKey+a, etc), I get a list of my hosts file in a strange ...
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GSM connection fails - NetworkManager

I am trying to achieve the gsm connection through my single board computer. I think I set up everything. Below is the output of the modem info: -------------------------------- General | ...
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Cgroup instance not creating “net_cls.classid” file

After creating cgroup i can see it is listed under 'lscgroup' cgcreate -g net_cls:123456 #lscgroup | grep 123456 net_cls,net_prio:/123456 But no child files got created under /sys/fs/cgroup/net_cls/ ...
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Add new LUKS passphrase or key using existing keyfile for LUKS2 encrypted partition

I have two partitions in my laptop where EFI and /boot resides on the first partition and the rest of linux directories including root resides in second partition which is encrypted with dm-crypt and ...
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Linux - What should I consider as Disk Space Usage (apparent size, or something else)?

I have a directory called /tmp/kafka-logs which I can see using ncdu or du command to find out my disk space usage. I am using Fedora Doplphin GUI browser on my laptop. When I see using my GUI file ...
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Why wont firefox browser launch in remote server SSH?

Cannot Launch Firefox using SSH Putty Description I am trying to to setup a headless web server and I need the firefox browser to do some configurations. I am currently using windows Putty to SSH to ...
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simulate hdmi/displayport “unplug” + “re-plug” from shell

I'd like to ~duplicate "unplug, re-plug hdmi/displayport cable from monitor", via shell. Obviously there may/will be some differences in result from real physical plug event. Also, it may ...
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tmux delimiter question mark character

hello I have a problem with the boundary tmux which has a question mark character. tmux version : 3.1b operating system : Arch linux (5.8.10-arch1-1) terminal : xterm-256colorenter image description ...
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How to DNAT local packets

I have a program send UDP packets to 192.168.0.2:12345, receive packets at port 54321, and it uses 192.168.0.1 IP address. I want it send packets to 10.10.10.10 with same port, because this program ...
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Why does adding local IP and username in scp return public key error?

I have two remote servers which have the same user and id keys. I can freely SSH to either of them from a local machine, or from one to the other. I ssh-ed to 100.100.100.1 and I tried to run: scp -i ~...
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Trying to find the right wireless adaptor under Kali linux as OS

I want to ask does d-link DWA-182 wireless AC1200 compatible with latest 2020 version and does it do packet injection and monitor mode. Thank you!
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screenkey on OpenSUSE

I'm trying to get screenkey to work properly on OpenSUSE Leap 15.2 with Gnome. I'm not getting any status bar icon, which is supposed to provide access to control and configuration. Only the default ...
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lock certain directories against deletion under $HOME directory

Recently I have been install Arch linux on many people's laptops and desktops. All of them are happy with the look and feel, speed, and it has got more user friendly than windows. But none of them ...
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How do I wrap dangerous linux commands with verification prompt

Question: How can I wrap linux commands to ask for verification before executing the command? Example: $> shutdown -r now Please verify the host you are shutting down by typing the hostname: ...
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How to install ASITIC (Simulation of Spiral Inductors and Transformers) CAD tool?

I want to run ASITIC http://rfic.eecs.berkeley.edu/~niknejad/download.html But it was developed upon an old architechture and g77 compliler as far i know and while i used this app on Ubuntu I had to ...
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FFmpeg/FFplay sometimes goes to sleep waiting on IO when webcam is unplugged

I made a webcam viewer out of a Raspberry Pi with Raspbian, FFmpeg/FFplay, and v4l2. I have a udev rule that automatically starts an FFmpeg stream and brings up FFplay to view it when my webcam is ...
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20 views

Nohup does not work with bash for loop properly

I have been trying to use nohup with bash for loop and I came across this post here which was helpful and gave me an idea but my command is still not working properly. What I have right now looks like:...
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Potentially corrupt file system, unable to boot back into linux partition

I've had this issue for a while and not found any solutions on all the other grub related posts. I think this may have been caused by some windows 10 update that killed my grub config. When I boot I ...
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USB Flash Drive not recognized after unsafe eject while dd was running

Wasn't thinking I'm going to end up here. What happened? I wanted to benchmark the speeds of a USB flash drive, which was USB 2.0. My system is Debian bullseye/sid 5.8.7-1. I used the same method ...
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My laptop microphone is auto muting and unmuting all the time

Suddenly my laptop microphone is auto muting and unmuting. I don't have any clue what's the problem. I'm using Arch Linux with KDE. This is so annoying to see microphone muted notification in the ...
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Unable to connect to google cloud instance via ssh in windows wsl

I am not able to connect to my designated ip provided by google cloud via ssh. It was working fine for a month but i am confused regarding this issue. When trying to connect directly from the google ...
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Can a Raspberry Pi 3 handle 3 NodeJS servers? [closed]

I am planning to buy a Raspberry Pi 3B+ and use it as a media center for my TV (my TV isn't smart but it's 4K, so I decided not to buy a new TV). I'll also be setting up a NodeJS Print Server and a ...
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School Dell laptop [closed]

So I am having a really hard time with my back round being more than 1 of the same image. Its hideous! They should make so is just one picture! I have backround. PLEASE FIX THIS
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Grid Engine unable to send message to qmaster using port 6444

I try to set up Grid Engine in the Docker VM on our work's server. I tried to follow this link from Kaldi documentation as well as this question. So my current setup looks like follows: /etc/hosts/: ...
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yum + skip broker or exclude rpms

during yum update on one of our rhel 7.6 server we get the following error --> Finished Dependency Resolution Error: Package: libtirpc-devel-0.2.4-0.6.el7.x86_64 (installed) Requires: ...
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Files missing when copying from Linux to Windows

I have a weird situation and I don’t know how to fix it: I have a Windows 10 running on a virtual machine that shares a directory. This directory gets mounted on a Linux machine using SMB. The problem ...
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Linux Mint 20 (systemd networkd) is ignoring dhclient.conf by not calling dhclient (isc-dhcp client)

I'm running Linux Mint 20 "Ulyana" and when it boots it seems to completely ignore /etc/dhcp/dhclient.conf. In previous versions of Linux Mint, one could add the following line to /etc/dhcp/...
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Fail to comparison item_var against ansible_hostname

I'm working with ansible version 2.9.13 and I'm trying to modify the following task -which btw is working fine - so I could compare a list of given hostnames stored in a yml file against the fact ...
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Getting “tar: Exiting with failure status due to previous errors” while trying to compress a directory

I'm trying to compress a directory but getting this error tar: Exiting with failure status due to previous errors I'm using centos 7 on aws instance and here is the commands I've tried tar cvzf hmd....
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Open clicked links in forwarded X11 email in a local browser instance

I forward Claws mail from my laptop to my desktop over ssh. When I click on links in messages Claws will try to open a browser process on the laptop. I use Brave and it uses hardware acceleration ...
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Parts of mp3 files overwritten with other mp3 files, software or hardware fault?

I'm running pop_OS, and I have a folder on an old laptop hard drive in which I store my music. They weren't organized, it was a mess, so a couple days ago I organized them in the following format, by ...
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What networking standard defines how two computers directly connected via Ethernet, ought to interact?

I'm specifically refering to a scenario where there is no router or switch, and the two machines are connected via a single crossover ethernet cable. I am trying to understand what must happen before ...
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Why are are few if any read only file systems targeted at larger scale applications? [closed]

Question(s): The specifics questions I'm looking for facts and citation on are: Are there some non-obvious technical problems that prior attempt at a read-only-FS have run into (and hopefully written ...
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1answer
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Has booting twice with GRUB `acpi=off` broken my monitor?

I'm running Ubuntu Fossa 20.04.1 with latest apt updates/upgrades. My monitor is a Asus VG248QE 1920x1080 144Hz running on DisplayPort. First time I booted it up I ran into a problem: After a few ...
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Are there any Read-only file systems for server systems? [closed]

Looking around, it looks like there are a number of different read only file system types, but (other than ISO) every one I've found (e.g. squashfs, cramfs) seems to target embedded and mobile ...
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How can I get Linux apps to work on Chromium on a Lenovo Ideapad?

I converted a new Lenovo Ideapad running Win 10 to the latest version of Chromium OS. I tied to initiate Linux apps, but there is an error when the installation gets to the point where it is creating ...
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Linux from Scratch 10.2.0 gcc fails [closed]

Hey guys i tried building gcc with Linux from Scratch 10.2.0. I followed the instructions exactly, but the make command throws following Error: checking whether gcc understands -c and -o together... ...
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Dovecot: Relative home directory paths not supported

I got a problem with dovecot, I have an external disk with all the emails in the Maildir format, I mounted this disk in Linux and for each user, I created a symbolic link (with ln -s) and then i ...