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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Administration suggestions for employees using Ubuntu

We're pretty much set on putting Ubuntu LTS (open to alternatives if it's really helpful) on a few new machines for some employees to cut the cost of Windows licenses and seemingly daily glitches. We ...
Big Millz's user avatar
5 votes
1 answer
8k views

VirtualBox Very Slow Boot Time

I have a VirtualBox machine running Lubuntu 15.04 with an excessively slow boot time (1:30+). It does not have the VirtualBox guest additions installed. The problem started when I had completely run ...
Anonymous's user avatar
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1 answer
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ansible most simple case not running - "MODULE_ARGS is not defined" error

I'm trying to begin using ansible, so I am walking thru an introduction. I've installed ansible on Debian Jessie, using apt-get. It displays version 2.2 I've configured /etc/ansible/hosts file like ...
62mkv's user avatar
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4 votes
1 answer
7k views

Font-spacing problems in Konsole terminal

Recently the font-spacing in my terminal changed. Some letters are overlapped by others and the entire line shifts and wiggles, when I move the cursor around. I posted an image below. Have a look at ...
Ben's user avatar
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1 answer
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Switching on / off X11 forwarding for remote firefox / git

I'm using Ubuntu16 inside a Docker image on top of CentOS6 in order to be able to run certain desktop apps that doesn't run on top of CentOS6. As an example, to run the Dartium browser, I do: ssh -X ...
Jan Vladimir Mostert's user avatar
1 vote
1 answer
1k views

Is it normal for mke2fs to consume above 100MB or RAM?

When I run mke2fs -t [ext2|ext3|ext4] /dev/sda1 program consumes above 100 MB of memory which can be quite problematic for embedded system. Is that normal behaviour? Is there a way to lower it somehow?...
RoughTomato's user avatar
1 vote
1 answer
3k views

Linux Mint reset NVIDIA GPU without a restart

I would like to know if it is possible through the terminal to reset a GPU? To clarify, an example scenario where the card is overclocked too far and resets to Performance Level 0, or around 30% of ...
Andrew's user avatar
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2 answers
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gtk_widget_set_realized was not declared in this scope

I'm trying to compile OpenCV 3.1.0 on RHEL 6.4 and getting the following error: [ 34%] Building CXX object modules/highgui/CMakeFiles/opencv_highgui.dir/src/window_gtk.cpp.o /hpcf/libs/opencv/vendor/...
drjrm3's user avatar
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2 votes
1 answer
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Recovering information from a damaged (reduced in size) MicroSD

I've got a 16 GB MicroSD card previously used in a Galaxy smartphone. What I see now is a disk hardly recognizable by a card-reader. The one that actually could have recognized it shows a disk with ...
Igor Shalyminov's user avatar
2 votes
1 answer
5k views

Trying to recover the home directory content

So while troubleshooting an ubuntu PC I received a request that all the home data have been erased. After running "history" command, I found this: sudo rm -rvf ~/ .wine Practically, this removed all ...
youta's user avatar
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Missing Storage

I am using a Raid1 1.2TB storage on my HP server but when I type df --total -BG I get a total of 32GB only! : Filesystem 1G-blocks Used Available Use% Mounted on /dev/mapper/rootvg-root ...
Peter Hayek's user avatar
6 votes
1 answer
21k views

Pacemaker Resource always stopped

I'm setting pacemaker for heartbeat seeing the doc https://skcave.wordpress.com/2014/11/04/creating-high-availability-cluster-with-centos-7/ When I set the pacemaker as above, there is no problem. ...
Levi's user avatar
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0 answers
37 views

Change directory for use with CMD

I have the SSH command line utility installed via chocolatey on Windows 8. The only problem is, it has an ssh key path with Linux OS' in mind, this means that the path is /home/roconnor/.ssh. This is ...
TechnicalTophat's user avatar
2 votes
2 answers
5k views

Can i execute a Linux command on shell script?

Can i execute a linux command on my bash shell script. for example how can i execute ifconfig on shell script. when i execute the shell the output of ifconfig should come on terminal. is there any ...
varza's user avatar
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2 votes
1 answer
3k views

Reduce the height of title/head-bars and their corner radius in Gnome 3.19+

Is there an entry in gnome-shell.css that control the corner radius of "title bar" (if I use the correct term) of most windows? As shown in the picture . I want to reduce the corner radius, since ...
oracleyue's user avatar
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New Trisquel installation always at 100% CPU, log files grow very fast, graphical glitches, etc

About a week ago, I installed Trisquel on a rather old (2010-ish) computer, and ever since then there has been an issue which I had never found a solution for, but hesitated from asking for support ...
jdoetrisquel's user avatar
1 vote
0 answers
425 views

How do I change iBus input methods when the session is locked in KDE?

How do I switch between input methods with iBus on the lock screen? Part of my work necessitates me using iBus for Chinese pinyin input. I had the misfortune of leaving the input method on pinyin ...
user2605299's user avatar
1 vote
0 answers
243 views

several minor issues intsalling Fedora 24 to an external USB drive

Most of my computers are UEFI, so I had the idea of, instead of dual-booting each one, installing Fedora 24 to a removable USB hard-drive, and having one Fedora installation that I could use on any ...
David Bolding's user avatar
0 votes
1 answer
199 views

Load average for a UNIX machine

Need help to understand if my CPU is overloaded. model name: Intel(R) Xeon(R) CPU E5-4657L v2 @ 2.40GHz $ less /proc/cpuinfo | grep processor processor : 0 processor : 1 processor ...
user600920's user avatar
6 votes
1 answer
35k views

SSH Network Error: Software caused connection abort

I am trying to connect to my linux shared hosting via SSH from my windows 10 laptop. It is not connecting at all. I have tried Putty (both 32 and 64bit), MobaXterm and one other SSH client and I am ...
thebigtine's user avatar
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0 answers
27 views

Ubuntu Internet Connection Issue

OK so I just got onto Ubuntu and I am not sure where to turn or what to do. I have been having some issues with my WiFi connection. No problems with Windows but I need to keep connecting and ...
Sricharan Krishnan's user avatar
1 vote
2 answers
2k views

How do I wait for a connection to be established?

I need to wait until a target host is up and running and accepting connections on a specific port. I want to use this as a part of the ssh -o ProxyCommand command to wait until the target host has ...
Juergen's user avatar
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Disable Open File security check Windows 10

I have not found a suitable solution for this: Open File security Check For the record this is the security dialog I am referring to: This is mounted as a network drive from a Raspberry Pi via a ...
CybeX's user avatar
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4 votes
3 answers
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Locating a process in a linux vm (it's complicated)

I have a virtualbox vm to which I can connect through a browser using localhost:8080. The network of the vm is NAT with port forwarding of localhost:8080 to vm:8080. However, logging into the console ...
hidenseek's user avatar
0 votes
1 answer
48 views

Windows 10 boot menu only gives me 'turn pc off' option

I am trying to install Ubuntu on my laptop (with Windows 10 already installed). I have my USB bootable by downloading Ubuntu 16.04 from their torrent file (because the direct one was taking ages to ...
user2851347's user avatar
0 votes
1 answer
1k views

Force modem to return IPv4 address

I recently got a new cable modem and when I reset the IP it gave me an IPv6 IP address. This is a problem because it is a hassle to type in this long string of hexadecimal numbers and also PuTTY does ...
Tyler Durden's user avatar
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Linux - Share local network only

I have two ethernet cards on PC: eno1: Connected to router ( getting internet connection network:192.168.200.0) eno2: Connected to access point (to share my connection to others network:192.168....
RepeatUntil's user avatar
2 votes
2 answers
1k views

VirtualBox Guest Shared Folder Ignoring umask

I have a folder on my host system (Arch Linux) which is being shared with an Ubuntu VirtualBox guest. Instead of using automount, I am mounting the folder at boot using the following line in my guest'...
Legendary_Linux's user avatar
1 vote
1 answer
42 views

Are device IOs handled even when a device is not opened by any process?

The following shell program examples makes the question clearer. Given a simple character device (a ftdi ttyUSB device in my case), I send it a request with echo to open();write();close(); the device,...
Julio Guerra's user avatar
1 vote
1 answer
888 views

Emulating PPC Arch on linux

I am currently trying to get a PowerPC architecture emulated running using qemu-kvm on my centos box. I currently have qemu-kvm installed however I see a lot of tutorials https://gmplib.org/~tege/...
DrumpftPls's user avatar
1 vote
0 answers
343 views

How can I correct two-finger scrolling on a Linux VM under OSX?

An earlier poster posted some of my concern at https://apple.stackexchange.com/questions/235029/in-terminal-how-to-exit-the-two-fingers-history-scrolling-mode, and I am grateful; I now know how to get ...
Christos Hayward's user avatar
0 votes
1 answer
2k views

TCP socket buffer for every flow

Does the linux kernel create a buffer for every TCP connection, for example when we have 1000 tcp connections the kernel creates 1000 socket buffer and stores the packets of individual flow on its ...
amer m's user avatar
  • 11
0 votes
1 answer
62 views

Power-off on CPU-intensive task

I'm not sure if this is the right place to ask, but I'm a bit lost at the moment: I recently looked into this project which is quite memory and cpu intensive. Everytime I start a calculation my ...
thegentlecat's user avatar
1 vote
1 answer
10k views

Missing /var/log/messages file in CentOS 6.8

I'm not sure what I'm doing wrong, but my Linux box doesn't seem to be logging any info to the /var/log/messages file. I've also checked and the kernel isn't logging anything either. My syslog ...
Tam N.'s user avatar
  • 143
0 votes
1 answer
67 views

Thinkpad T520 with sudden power cuts

I have a Thinkpad T520 running on Linux Mint 17. Once in a while (once a month) it has a sudden power cut, i.e. laptop switches off suddenly (it does not shut down properly) I can hear the heads of ...
radix's user avatar
  • 103
0 votes
0 answers
1k views

pip not working with non-root user on RHEL 6 server

I have a server running RHEL 6 with Python 2.6.6. I am having trouble using pip with Python as a non-root user. I am able to install pip packages and use them as root. However, when I try to run pip ...
Jake's user avatar
  • 213
2 votes
2 answers
3k views

Can't mount recently formated external hard drive

Linux doesn't seem to recognize my drive at all. It doesn't show up in mount or lsblk but can be found in /dev/. While trying to mount it manually I get the following messege: mount -t ext4 /dev/sdc ...
RoughTomato's user avatar
1 vote
1 answer
505 views

How to set PHP timezone for cloud based web server distributed to different geographic regions?

I'm getting the following warning while running php -i: PHP Warning: Unknown: It is not safe to rely on the system's timezone settings. You are required to use the date.timezone setting or the ...
jww's user avatar
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1 vote
1 answer
59 views

Can a process be started while Linux system shutdown?

This question is about a script which holds a lock to prevent multiple simultaneously executed instances of itself, which is executed at certain times by various processes and which sends reboot ...
philipp's user avatar
  • 171
1 vote
1 answer
721 views

How to find the user who is running rsync?

In Linux, if rsync is already running, how can we identify which user is running it? And what if it is running as cron job, will the cron job user be different?
user600242's user avatar
1 vote
1 answer
762 views

Line is not Wrapping in Terminal

I am using Ubuntu G-NOME 16.04. Line wrapping not functioning properly in my terminal. It starts rewrite at the beginning of the same line. eg. If I try to type follwining command user@MY-PC: ~$/home/...
stux_kill's user avatar
  • 125
2 votes
0 answers
83 views

Linux virtual machines cannot connect to each other via virtualbox network

I have created two linux virtual machines in virtualbox, one for server and one for client. But these two cannot connect to each other via virtualbox network. The pings are not reachable after giving ...
jdmuroe's user avatar
  • 31
0 votes
0 answers
123 views

Error messages "VBoxGuest_RTLogBackdoorPrintf" and "RTAssertShouldPanic" when updating a Linux host with VirtualBox installed

This has been noticed on the Linux host updates, where the virtualbox has been installed. Notice "VBoxGuest_RTLogBackdoorPrintf", "RTAssertShouldPanic" and more. What is this process please?
user avatar
2 votes
0 answers
5k views

Dropped packets in all Linux and Unix

I have a problem. I have motherboard by Supermicro – X11SBA-LN4F. There are 4 ethernet ports. In first port i have internet. In second port i have my local network. When, i write "ifconfig" or "...
Valeriu's user avatar
  • 21
1 vote
1 answer
186 views

Using two bonded network interfaces in Ubuntu14.04

I have 6 ethernet cards in my server. 4 of 1Gbps and 2 of 10Gbps, So I have configured all 4Gig cards as bond0 with static IP 144 and 10Gig cards as bond1 with IP 122. The problem I'm facing is that ...
Vishal Yarabandi's user avatar
0 votes
0 answers
788 views

PHP permission denied for FreePBX sysadmin

Trying to install the sysadmin module in FreePBX, but it keeps giving this: mkdir(): Permission denied /var/www/html/admin/modules/sysadmin/install.php the materials provided herewith, you agree to ...
amzt's user avatar
  • 1
0 votes
1 answer
4k views

Failing to mount exFat on Linux

I have an exFAT filesystem in a microSD card (devide /dev/sdi appears in dmesg when I plug it using a microSD to USB adapter). The card works on Android, and I want to mount it in Fedora 23. I tried ...
Luis A. Florit's user avatar
1 vote
2 answers
1k views

How to uninstall SmartSVN on Ubuntu

I cannot find any information on how to cleanly uninstall SmartSVN on Ubuntu. I'm not using it at the moment and part of the reason is that on the latest Ubuntu upgrade it has somehow hijacked some of ...
StrangeElement's user avatar
3 votes
0 answers
1k views

Forwarding traffic on Linux virtual machine received through GRE tunnel connected over OpenVPN

I'm trying to route traffic destined for the public Internet through an OpenVPN network, where the traffic will exit the VPN through another client on the network (that happens to be a VirtualBox VM). ...
ThomasL744's user avatar
2 votes
0 answers
661 views

Login to GNOME (Fedora) using my FreeIPA credentials

I have a FreeIPA Server (Fedora Server 23) and a FreeIPA Client (Fedora Server 23 with GNOME). Everything works excepts one thing: I can't login to Fedora Client with my FreeIPA username and password. ...
mbalint987's user avatar

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