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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KDE on Fedora 30 doesn't keep resolution

I've installed KDE Plasma on Fedora 30 Workstation. The resolution was at the lowest but attempting to change the value in System Settings does not work. The monitor supports the resolution. Upon ...
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1answer
19 views

Public key auth issue on ubuntu with ssh-ldap-pubkey?

I am testing out ssh-ldap-pubkey, to get the ssh key from an LDAP server. From auth.log, it shows that my user surfer.example is being closed in preauth and not even running the AuthorizedKeysCommand ...
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1answer
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Don't send modify event to inotifywait if file is opened

I use VSC as an editor on Windows 10 Pro and want to sync to a remote server on file change. I installed WSL with a debian guest system If I run this script while inotifywait -r -e modify,create,...
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How does an installer work under the hood? [on hold]

How does the installer wizards perform their tasks? Do they execute scripts under the hood or everything is done through a compiled language? Which technique is better from a performance standpoint?
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Check Mount Directory

I have raspberry pi and have microsd with raspbian from which the system is loading and the HDD on which I write logs. I encountered such a problem that sometimes the disk falls off and the logs begin ...
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1answer
21 views

ArchlinuxArm on Raspberry: Can't sync datetime at boot

I have a raspberry pi I use for an irrigation system. The problem is it doesn't have hardware clock so, every time it reboots, the system time is wrong, and I cannot set it to sync it automatically. ...
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Node MCU boards suddenly stop connecting to my compter

I hope this is the right place to ask this. If it's not pointing me to the right place would be highly appreciated. I am using BunsenLabs Linux together with the Arduino IDE to upload my code to my ...
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1answer
20 views

HDD Device WD Black 4TB isn't detected by any Controller

I bought a new WD Black 4TB HDD and it isn't detected after plugged in my HP ProLiant DL380 Server. I just tried it on different PC's and Controllers but the same thing I've sent the HDD already ...
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1answer
25 views

How to change my working directory using “Execute shell script on remote host using ssh” in Jenkins?

I put these commands inside the command field just to check if I am able to change my working directory.. pwd cd /apps/working/agent/working_agent/ (Directory path to run my script) pwd However ...
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1answer
27 views

How do I rename my rhel filesystem name?

I have 2 identical servers, both installed with RHEL7.6 . During the installation part I made a mistake of didn't provide the hostname on server 1 during the GUI installation, I then change the ...
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23 views

Command line shows extension “gd” is enabled but WordPress says it isn't. Terminal and phpinfo() showing different PHP versions

php -v is showing 5.5.9 phpinfo() is showing 5.6.22. WordPress is reporting that I have to enable either gd or imagic extension in order work with image processing. The Configure command for phpinfo(...
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Process 0 is taking 500%+ CPU time in MAC

Problem When I boot my mac, once the login screen appears and after which everything freezes, I can hardly open any applications. Analysis Using activity manager, I found out, process with process ...
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1answer
36 views

I wanted to transfer my 50GB to my Main Disk [on hold]

Newly Purchased Disk Linux Someone would help me out about the problem?
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1answer
21 views

fatal: write error: No space left on device fatal: index-pack failed only when git cloning via jenkins over ssh

I have a Jenkins server that is trying to run a git clone command on a Development environment server. When the command is run manually over ssh the there is no issue, but when the command is executed ...
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8 views

Create User with Read/Write access to specific folders only

I have the following file structure for a project and I want to create a user that can only access a few HTML & CSS files. I'm using Ubuntu 16.04.3 LTS. Here is my directory /home /projects ...
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NiMH-Akkupack H-AA1200Bx2, 2x AA to power up ESP 32 project [on hold]

besides some projects with RC-Cars where i have a full set of hardware i have some iot-projects in mind where i only need the esp 8266 (/ and in several the esp32 ) and a set of little sensors. some ...
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2answers
23 views

shell script not breaking from the loop

i am a neewbie to shell programming and tryin to implement some retry logic. for some reason my until loop is not exiting. its getting hanged there. any help is appreciated. #!/bin/bash retry_cnt=0 ...
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Linux Steam: Missing libc.so.6? But I'm not?

I'm trying to get steam to work on my Debian based Linux install, but it keeps telling me I'm missing "The following 32-bit Libraries: libc.so.6" However, I've found it in /lib/i386-linux-gnu If this ...
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Cannot start MySQL-Server after changing the owner for /opt/lampp/var/mysql

I am asking for your help to start MySQL-Server (Xampp-Local Server). After I changed the owner for the directory /opt/lampp/var/mysql I was not able to launch MySQL-Server. The Appach-Server works ...
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12 views

GCC 7.4 Can't find header files

Hello i have a problem compiling some c code. I'm trying to use the sendfile syscall in linux, but the problem is when i include sys/sendfile.h it gives me error about the size_t variable type (in ...
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19 views

Network UNCLAIMED Kali Linux 2.0

I just installed Kali Linux on my Computer and noticed my WIFI isn't working. I have Windows 10 installed to and no Problems there. Here is some Information: root@Kali:~# sudo lshw -c network *-...
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Chrome stops responding but ajax requests works fine

I use a java application on background with a php + javascript app on chrome and I'm having an issue that chrome all of a sudden just freezes but the ajax request keep working and sometimes it just ...
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Migrate SSH Keys from Centos 6 to Ubuntu Server 18.04 LTS

I have a Centos 6 Servers that runs some scripts in it to about 850 remote devices. I just bought a new server and installed Ubuntu Server 18.04 LTS in it, im trying to migrate the private and public ...
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linux hangs and found statvfs(/run/user/0/gvfs) failed: Permission denied

recently my virtual machine hanged and checking my messages file i found the next reasons but im not sure if is the filecount function. collectd[2143]: statvfs(/home) failed: Permission denied ...
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2answers
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How to analyze if cronjobs are running in a centos server?

How can I check if certain cronjob is running in my centos server? I have written various crons in centos. Some of those crons are not running even though the interval is set properly. Is there a way ...
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1answer
23 views

Run missed cronjobs when computer turns on

I have some cronjobs running at certain times of the day but sometimes my computer is switched off when they are scheduled to run. Is there anyway for these to run as soon as the computer is turned ...
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5 views

Can't run glxgears using XQuartx

I am trying to run glxgears on a remote Linux server using XQuarts 2.7.11 on macOS Mojave (10.14.6), but I get the following error: libGL error: No matching fbConfigs or visuals found libGL error: ...
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15 views

SAR concatenate several /var/log/sa/saxx files to generate sar reports for longe periods

I need to create report of sar collected data that are parseable easily and loaded in a database i usually use sadf -d -t /var/log/saXX where XX stand for the day of the month. one file is generated ...
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11 views

Ubuntu: Unable to map AD group with Linux local group

I'm using below command to map AD Group with the local Linux group and when I try SSH with the user who is part of AD group cant login. Am I am doing anything wrong here? net groupmap add ntgroup="SG-...
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9 views

Apache ZooKeeper Cluster Does Not Reconnect After Leader Election

I am running a ZooKeeper Cluster with five nodes, each of which has the following configuration (plus the correct quorum information at the end): tickTime=2000 initLimit=5 syncLimit=2 dataDir=/usr/...
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15 views

mysql: ERROR 1524 (HY000): Plugin 'mysql-native-password' is not loaded

I just installed a fresh install of mysql-server-5.7 no linux mint 19.1. I wasn't prompted to set a root password during the installation and so whenever I tried to use mysql via the mysql -u root -p ...
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1answer
27 views

How do I verify a file copy in linux

I am new to linux (my windows system drive died and I can't reinstall windows, so trying a ubuntu live usb) I am trying to clear a drive so I can install ubuntu properly, so I have copied a directory ...
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18 views

Tor browser not opening

Tor browser is not opening in my kali VM even though I am not logged on as root. I also commented the code in 'Start tor browser' which displays an error if you enter as a root As such no error is ...
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1answer
55 views

stop a systemd job and all activators

i want to stop a job that is activated by sockets or files or whatnot, e.g. # systemctl stop rsyslog Warning: Stopping rsyslog.service, but it can still be activated by: syslog.socket is there a ...
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Source (asymetric) routing Ubuntu 16.04

A bit of research according to source (asymmetric) routing on Ubuntu 16.04 LTS with more than one network interfaces. Assume, we have 3 NICs: eth0, eth1, eth2. All interfaces is on the same subnet ...
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1answer
56 views

Why is the local address the same as the peer one?

A weird issue occurred while I was troubleshooting with ss, the local address is exactly same as the peer one. Same IP address is ok, but how to explain the same port?
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32 views

Win32DiskImager creates an additional file with the partitions

I am using a Linux system with 7 partitions in an SoC environement. The output of the lsblk is as follows: NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT blk 179:8 0 14.7G 0 disk |-blkP1 ...
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1answer
35 views

Can I override links in /usr/bin/ by .zshrc?

I have /usr/bin/python mapped to /usr/bin/python3.7, but I prefer to use python3.6 instead. So I recreated links manually, but each time I update my system with pacman -Syu I have them overwritten by ...
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Strongswan on vServer not routing correctly

I tried to replicate a strongswan setup I am using on an openWRT router at home on a vServer running strongswan 5.5.1-4+deb9u4. The client is an iPad. uname -a Linux t 2.6.32-042stab127.2 #1 SMP ...
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18 views

Using find to cp million files from remote to local machine

I have 1.2 million files in a folder at a remote location. I am connecting to the remote location through VPN. The path to the files location is as follows: hatari@192.168.1.192:/home/hatari/...
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Why does iftop show 'b' characters instead of lines?

I am connecting to my Raspberry Pi 4 over SSH. Although I see iftop on all captures as having a nice frame, mine shows 'b' characters instead of lines. The curious thing is, the corner pieces and all ...
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1answer
16 views

how to break mirrored display setup or unmirror dual monitor setup

I currently have my monitors connected in a mirrored setup like so: xrandr --output DP-2-1 --auto --scale-from 2560x1440 --output eDP-1 What is the xrandr command to reset my display to just the ...
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Kali Linux : Failed to open session for virtual machine is failed on Windows 10

I installed Virtual Box 6.0 in Windows 10 OS and then downloaded 64 bit ova file for Kali Linux. I created NAT network for communication between host and guest operating system. When starting Kali ...
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Failed to install Qt on Win10 WSL2 (ubuntu 16.04) with error: QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-root'

When i tried to install Qt on WSL2 ubuntu, i got below errors: root@sun-pc:/mnt/e# ls -l qt* -rwxrwxrwx 1 sun sun 157714525 May 30 09:51 qt-creator-opensource-linux-x86_64-4.9.1.run -rwxrwxrwx 1 sun ...
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1answer
63 views

badblocks is taking ages - what am I doing wrong?

I have a 8TB Seagate Archive drive which has a few bad sectors. I can't afford to replace it yet, though. I'm trying to "fix it" with badblocks for the time being, but it's taking ages: # badblocks -...
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40 views

Arch/GNS3: Could not connect to 127.0.0.1 on port 3080: [Errno 111] Connection refused

I installed GNS3 install on Arch following this and this. I restarted the machine already but it keeps me telling it could not connect to localhost on port 3080. By default, when GNS3 is not running ...
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1answer
54 views

Recovering data from Synology NAS – RAID5, ext4, “number of reserved GDT blocks insanely large”

I have a 4-disk RAID5 array that had one of its four 3TB HDDs die. Being that RAID5 can tolerate a single drive failure, I'd like to try to operate the RAID5 without replacing the dead drive. (Run ...
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35 views

Virtualbox Says I can't create over 4GB files at FAT but I have EXT4

I installed VirtualBox at AUR and want to create a virtual machine for Arch Linux. For that, I mounted my SSD which has an EXT4 file system. Then I tried to create a virtual hard disk for my virtual ...
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1answer
44 views

Fedora update broke my wireless, now constantly creates new wireless interfaces

Recently my GNOME software library reported that there were OS updates for my computer (Dell XPS running Fedora 30). Previously everything worked fine, and I believe my kernel version was 5.1.19, the ...
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Connecting to wireguard on localhost

I want to be able having 2 wg interfaces on same machine and tunnel traffic from one to another. Every setup I found is basically begin with "setup your server peer on dedicated instance" but I need ...