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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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Linux HP 15 mute key light

I own HP 15-db0038nc laptop. It has LED on mute key, which indicates if sound is muted or not. It works on Windows, but it doesn't work in Linux (Xubuntu 18.04). I don't see it in alsamixer. This is ...
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1answer
21 views

how to restore softwares in linux from an old hard drive

I recently removed my old harddrive from my linux machine, as the linux was corrupted due to accidental deletion of /bin folder. I have inserted a new harddisk and installed a new linux system (which ...
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How to check the application i/o type

I want to check my NFS performance. Here I am trying to launch the application and I want to check the IO latency. Here I am using ioping to check the IO latency. As ioping has a different I/O type, ...
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14 views

Add PlantUML options in Tomcat 8 on Linux [closed]

How add option in Tomcat8 to a specific webapp (PlantUML)? -GRAPHVIZ_DOT=/usr/bin/dot /var/lib/tomcat8/conf/server.xml <Service name="plantuml"> <Connector port="8082" protocol="HTTP/1.1"...
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libpng warning: Application jmp_buf size changed [closed]

I'm in Ubuntu 18.04.1. When I try to install the lastest version of xampp(with the command sudo ./xampp-installer.run), I have a error message. Here's what I wrote and what I received: root@caso:/...
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18 views

SQLite malformed database error when connecting over MTP [closed]

I have written an android app that stores data in an SQLite database. I am trying to write a java app on my linux box to access the same database so that I can do data entry on a regular keyboard, ...
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19 views

How to change size of Terminal window during a tmate session (Linux)?

How to change size of Terminal window during a tmate session (Linux)? Hello, I am connecting from a client to a server over tmate (Linux) On the client side the Terminal window is full of small ...
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1answer
17 views

Apache2 “Failed to start The Apache HTTP Server”

Hi everyone I have a problem on Apache2 (on ubuntu). My server does not starts up and when I enter systemctl status apache2.service I see this; ● apache2.service - The Apache HTTP Server ...
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2answers
47 views

Add prefix to each lines of file from other file

I have two files named file1.txt and file2.txt, I'm trying to add the prefix to file2.txt from file1.txt in a manner so I can pipe the results to the next utility I'm using. cat file1.txt aa bb cc ...
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28 views

Can't assign ip address to veth directly after creating veth pair

If I run the following, then the ip address doesn't actually get added: ip link add veth0 type veth peer name veth1; ip address add 10.0.1.2/24 dev veth1 However if I sleep in between the commands, ...
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44 views

USB being read only after created usb boot

I've created usb boot using write click iso instead launch an application I'm using linux mint cinnamon. So I thought this may cause of problem. I tried many ways but it falis. I tried fdisk ...
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1answer
51 views

Boot automatically into Debian instead of busybox/initrd?

I'm using an old TS-7500 (https://www.embeddedarm.com/products/TS-7500) rugged platform for a home automation project (it was a freebie from my college) and I want to get the platform to boot into the ...
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20 views

Store single file on multiple partitions

I want store a file movie named movie.mp4 to sda1 and sda2. Some of the parts are on sda1 and rest is on sda2. If I open the file will it work normally. How to do that
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2answers
24 views

Cannot install hexbin library R on AWS instance

I am working on a project that uses the package plotly in R. When I tried installing plotly, hexbin (a dependency) would not compile, because it could not find the gfortran .so libraries. I have ...
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0answers
15 views

Disable Host Verification for Hadoop

I have set up Hadoop to run as a linux service in an AWS EC2 instance (deployed via an auto-scaling group) and have it run as a spark user. However, when I start it, I get the following message in ...
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1answer
81 views

How to get a Corsair gaming keyboard to act like a standard USB HID keyboard

I have a Corsair Strafe RGB keyboard which has caused a number of boot and suspend/resume issues on Linux due to some kind of USB error. On recent kernels, the issue has been mostly fixed, but it ...
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2answers
38 views

Why does the latest Ubuntu comes with an obsolete PHP Version? [on hold]

Why does the latest Ubuntu comes with an obsolete PHP Version? Is it secure to use this version?
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12 views

How to recover disappearing files on an NTFS partion on Linux

I have a Linux machine where I mounted an additional harddisk that has an NTFS filesystem. I use SAMBA to make that volume available in my network. I was uploading files to a directory on that disk ...
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2answers
14 views

chroot issues with ProFTPD

I'm running ProFTP on Centos 7. I have successfully installed the server and created a user that can login to the server. The problem is that the user always gets access to the root directory of the ...
1
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1answer
26 views

Sshpass in a loop

Why when using sshpass in a loop the first sshpass executes commands, while the next does not? for element in "${a[@]}" do { echo "$element" sshpass -p "omg" ssh root@$element 'ls' } ...
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0answers
10 views

meta-iot-cloud - az - runpy issue (yocto)

I've built and installed meta-iot-cloud and flashed it to a gateway, however, when I'm trying to run "az" I'm getting the following error: "Could not import runpy module". Anyone else built this ...
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38 views

System uses almost all my RAM

I am running a Linux Ubuntu(17.10) distro and my system specs are Memory : 7.6 GiB Processor : Intel® Core™ i5-3210M CPU @ 2.50GHz × 4 Graphics : Intel® Ivybridge Mobile GNOME : 3.26.2 OS Type : 64-...
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2answers
22 views

Sudo confirmation prompt

I use sudo on my linux workstation, and it is configured to request a password each time. But typing the password every time is cumbersome and also a bit dangerous if I don't have the focus to the ...
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0answers
16 views

Lenovo Z50 overheated under linux

My Lenovo Z50 overheated under Linux. I tried Ubuntu 16.04, 18.04 and Linux Mint 18.1. The standard installed Windows 8 doesn't have this problem. It heats up to 100°C and shuts down. I followed the ...
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30 views

Iperf giving wrong results

I ran TCP throughput from client(iperf -c IP -i1 -p19223) to server(iperf -s -i1 -p19223). The stats showed me bandwidth of ~5Gbps. However, when I ran iptraf on the server, I came to know that ...
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1answer
34 views

Display issue - Android x86 - Lenovo Miix 310

I'm trying to install Android x86 on my Lenovo Miix 310. I made a bootable USB, entered setup mode in the device and booted the USB. I can see the menu on which I can choose from live, live debug, ...
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1answer
33 views

How to route a LAN?

I have a private network with a PC and 3 raspberries. PC--RPi1--RPi2--RPi3 PC: 192.168.0.101/24 (ssh to RPi1) RPi1: 192.168.0.102/24 (eth0 linked to PC) && 192.168.0.103/24 (eth1 linked to ...
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1answer
43 views

Unable to make changes to /etc

I am using embedded linux (built using LTIB). I am unable to make changes to /etc directory. Basically I want to add a start-up script to /etc/rc.d/init.d /etc/ seems to be mounted as rwfs output ...
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0answers
8 views

PCIe sriov: interruption use on virtual function

I'm working on the developpement of an sriov pcie linux driver and have some trouble with interruption on the VF. Infact my problem is that i not able to activate msix its on a Virtual function ...
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0answers
13 views

Squid Proxy Terminal Connection error

I am using squid proxy server. This is working fine in the browser. But when I try to wget in terminal. I am getting below error. paulsteven@smackcoders:/etc$ wget https://www.google.com/ --2019-01-...
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11 views

How do I find out which log is constantly filling up the disk space?

We have a webserver (Debian Stretch) that hosts multiple domains. Unfortunately, our developers tend to use debugging (adding code that writes something in a log file) and forget about it, even after ...
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2answers
36 views

Should i use CNAME for my domain to hide the original public IP address

I have one domain example.com which is associated with four public IP address. I want to hide my four public IPs during dig/host etc. Should I use CNAME to hide my original public IP's? What will be ...
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1answer
37 views

How to install postgresql-contrib-11 on CentOS 7?

So, I was trying to install extension citext on PostrgeSQL 11.1, but of course I've encountered an error: ERROR: could not open extension control file "/usr/pgsql-11/share/extension/citext.control": ...
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0answers
10 views

Why does redis need write permissions for redis.conf?

I just installed redis on an Ubuntu server. When I examined its file permissions, I saw -rw-r----- 1 redis redis 59124 Jan 11 02:24 /etc/redis/redis.conf Why does the redis user need write access to ...
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2answers
58 views

Deleting user from sudoer

I would like to know the command to remove a user from the sudoer list in Linux. I have added the user using this command: sudo adduser user_name and also added it to a group. I now want to remove ...
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1answer
58 views

backing up corrupted linux os

The /bin folder of my linux system was accidentally deleted as a superuser. Now the system is corrupted, and restarting it will collapse the system. There are some stackoverflow posts which list what ...
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18 views

Kali Linux Install VB macbook

I downloaded the kali-linux-2018.4-amd64.iso and ran the graphical install on virtualbox on my mac. After the install I was able to login and I saw all the tools available, but when I poweroff from ...
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22 views

Can you kill a parent process while leaving its child process to complete normally?

I'm running a shell script we'll call parent that has a loop. Each iteration in the loop executes something else we'll call child, and when that completes (synchronous/blocking), my script goes to the ...
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0answers
24 views

Synchronize color scheme between Mac and Linux

I use iTerm2 in Mac, and frequently access Linux machines through ssh. I find that the color schemes (e.g. the colors in the output of ls, grep, emacs, vim) are always slightly different between Mac ...
2
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1answer
25 views

Windows does not show FAT32 partition

I created my own Rasbian image, with the following partitions: $ sudo fdisk -l 2018-11-13-raspbian-stretch-lite.img Disk 2018-11-13-raspbian-stretch-lite.img: 2,5 GiB, 2705326080 bytes, 5283840 ...
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0answers
37 views

What determines what algorithms are available to OpenSSH?

Is the version of OpenSSH or the version of OpenSSL (or a combination of the two) that is installed on a given system what determines which Ciphers, KexAlgorithms, and MACs are available to be ...
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1answer
8 views

mwoffliner ZIM file creation issue with local MediaWiki

I installed mwoffliner 1.6.0 as per these instructions in a Ubuntu 18.10 (cosmic, desktop edition). Some programs were missing and I apparently managed to install all of them. I succeeded running the ...
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0answers
23 views

Give docker container access to usb wireless adapter

I have a wireless usb adapter and I would like my docker container to use just this for the internet (not the computers own wireless adapter). My knowledge of networking is basic so I have tried to ...
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1answer
23 views

Restore SQL Database from full system backup

long story short I am restoring a failed server. I have a backup of most of the file system. I need to restore the SQL databases but I don't have a copy of the mysqldump. so I've restored the files to ...
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1answer
14 views

How do I make python modules available to all users?

I work in a multi-user setting and am relatively new to Python. The machines in question run Ubuntu 16.04, and we are using Python 2.7. I personally have installed several additional modules, such as ...
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1answer
26 views

How can I spawn my own program in a linux tty-session instead of the shell?

I want to spawn a little TUI program instead of the shell on a raspberry-pi on the standard tty (without x11 of course) Therefore I need to know how to switch of the starting of the standard-shell ...
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0answers
24 views

Extract tar file directly to stdout or other command like partition image extractor

Let's say I have TAR file with some partition images (dd/patclone/partimage/fsarchiver/whatever) and text file with MD5 sums (of image file and original partitions). I don't want to extract the image ...
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2answers
84 views

Data Recovery on Linux

I recently purchased a new computer so that I could upgrade my old Linux machine. My old machine was running Ubuntu 16.04 Server LTS. The operating system was installed on a 256 GB SSD, while a single ...
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0answers
13 views

Text Typed Into PowerShell on RHEL 7 Corrupt

I've just installed PowerShell 6.1 on a RHEL 7 system. The text generaetd by pwsh is ok but the text typed by the user is just weird. Here is what I get when I type $PSVersionTable at the pwsh ...
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1answer
51 views

Run command after opening terminal window from script using bash

I have a very simple script I use to open Terminal from Xcode in project root folder: #!/bin/bash open -a Terminal "`pwd`" I want to extend it to run pod install command so I've added && to ...