Questions specifically about Linux but not specific to a particular distribution. If the question could apply to any Unix-like system, specify your Linux distribution in the body of your question but do not use the /linux tag.

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91 views

error: getrlimit(RLIMIT_CORE): Operation not permitted. Proftpd on Embbeded Linux enviorment

I've been trying to use proftpd on Arm7 Embedded linux. After starting the execution, it delivers this message: error: getrlimit(RLIMIT_CORE): Operation not permitted The Proftpf version is ...
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103 views

How build wireless-compat-old in-kernel?

I'm running linux 2.6.24 with custom patches from Freescale, on an embedded board. I want to use a usb wlan modem that uses the Realtek rtl8191su chipset. Realtek provides a driver out of tree, ...
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846 views

USB fails to be mounted or detected on Debian machine

My lsusb command says this: Bus 001 Device 002: ID 80ee:0021 VirtualBox USB Tablet Bus 002 Device 005: ID 0951:1642 Kingston Technology DT101 G2 Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 ...
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156 views

Reset a crashed device (Intel Wireless-N 7260) without reboot

I have a problem with an Intel Wireless-N 7260 card in my laptop. When it dies, I have to reboot to use it again. Is there a way to reload the used modules somehow? I tried removing them with sudo ...
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447 views

How to fix dual monitor disconnect after desktop boot on Linux Mint 17 Xfce?

When I boot into my desktop, my dual monitors go into power save mode and the communication between the monitors and the graphics card radeon x1650 is disabled? When I press ctrl+F2 or ctrl+F7 I ...
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57 views

How do I write the rule that has an edge server forward a clients request to an internal network server and back?

I have a network situation as follows: -server1:1.1.1.1 -server2:2.2.2.2 -tunnel 10.8.0.0/24 -client: 3.3.3.3 I'm trying to have client IP 3.3.3.3 do an HTTP request from the 1.1.1.1 server. ...
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53 views

How fast is a process reading/writting virtual memory?

So, we have top, htop, iotop, iostat, vmstat, etc, to measure many different things on Linux, but how can one measure how much MB/s a process is reading and writting to/from RAM, i.e., virtual memory? ...
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132 views

Compiling drivers for armada 370

I am trying to compile usb_serial drivers for a Mirabox with armada 370. I first tried as followes : Install linux source for 3.2 (running kernel is 3.2.36) Install linux headers for 3.2 Edit the ...
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696 views

How to set up MouseButton4 on TeamSpeak

Is there a way to set up Button4/5 to push-to-talk in TeamSpeak? For Example: In Firefox I can undoing and forwarding but TeamSpeak doesn't recognize clicks. I'm using Arch Linux and my mouse is ...
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2k views

USB Ports not working with Ubuntu Linux 14

Sorry if this seems like a duplicate post but I am Ubuntu Linux noob and am struggling with it a bit. I installed and configured Ubuntu Linux 14 for dual boot setup on my Windows 8.1 machine. ...
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135 views

nfsroot freezing every once in a while presumably due to network glitch

Setup I've set up a thin client running gentoo according to these instructions. It seems to work quite nicely except that every once in a while it freezes. I've found that I can duplicate the issue ...
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37 views

How to enlarge the edit-box size of the login screen of fedora?

My macbook with retina display runs fedora-20 KDE spin. The annoying issue is: On the default login screen, the edit-boxes for username and password look too small to input. Is there a simple way ...
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110 views

Why was n't kqueue socket polling mechanism not implemented in Linux?

Linux has epoll for socket polling mechanism. kqueue seems to be better than epoll. Why did linux went with epoll rather than kqueue? I read about libkqueue. But that is implemented in user space and ...
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52 views

sshd suddenly wants a passphrase from Linux box, but not from windows (putty)

My Amazon EC2 instance running Ubuntu is no longer letting me ssh in via my local Linux system. I haven't changed a darned thing on either side but now it wants a passphrase and says nope when I ...
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146 views

Display boot splash on ramdisk only system

I'm working on a kiosk system with the root file system loaded into RAM. One of the requirements is that the boot process output should be completely hidden from the user. I've already managed to set ...
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1k views

How to enable IOMMU on the debian sid Kernel

I'm trying to enable IOMMU on my debian sid and with this kernel version : root@ziomario-Z87-HD3:/home/ziomario# uname -r 3.14-2-amd64 the motherboard of my computer is : GIGABYTE Z87-HD3 this is ...
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42 views

Huge UI elements in Crunchbang

I have just installed Crunchbang on my Desktop, and windows and menus appear incredibly enlarged. When I right click the context menu fills the screen, for example. My graphics card is the Radeon HD ...
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506 views

Fix the debian default version to wheezy

I followed this tutorial http://kemitix.postach.io/install-viber-on-debian-wheezy to install viber on debian wheezy 7.6. My problem is about the part that says: Fix the default version to wheezy. ...
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99 views

get Lexmark Z515 running on Linux

Following this tutorial I was able to intall this driver here in Crunchbang Linux 11. As expected, it didn't work. Lexmark itself offers a driver for OS X and that was it. I've tried something similar ...
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388 views

Set persistent permissions for /var/log/boot.log

Every time I reboot my CentOS 6.5 computer, it writes the boot log to /var/log/boot.log. The permissions on this file are always 644 after a reboot. I want the permissions to be 600. When I change the ...
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759 views

RTC is not saving time after hwclock

So I'm having quite a bit of trouble trying to get my system to set the hardware clock's time. Here is what I did just now, everything has worked, right? The first and last command seem to indicate ...
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66 views

Setting up touch driver to run through service

We are trying to integrate a touch panel to our Debian system. Touch driver (General touch) I am trying to run this application in Linux service.Below are the steps which i followed Driver ...
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476 views

Setting fbcon to use a specfic frame buffer device

I am trying to display the output from and SDL based application on to a framebuffer device /dev/fb1. Fb1 is associated with a SM750 based card. When I run my application, the output always appears ...
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186 views

“disagrees about version” message

I get a message "disagrees about version" on boot time, after compiling kernel and modules with KGDB. Why should this happen ? Is there any problem with KGDB ? This is the relevant log at boot: ...
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430 views

Different layouts and specific key mapping for different keyboards

Here's the deal I have an apple aluminium usb keyboard connected to my laptop with "windows" keyboard. And almost everything works great on my apple keyboard except three annoying problems. Each ...
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34 views

How can I find out what's seeding in Vuze if it's not listed anywhere in the application?

I use Vuze (formally known as Azuereus) for downloading torrents. But for some time now it's been seeding something that I can't see or find anywhere. It's not listed in any of the lists that are ...
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275 views

gpg: Bad signature

I'm trying to sign a public PGP key but am encountering a 'Bad signature' error: gpg --edit-key someone@somedomain.com ... gpg> sign ... You need a passphrase to unlock the secret key for user: ...
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415 views

How to properly start and stop shell script in linux, busybox?

I am trying to write a small shell script that would send some commands to my tv set from my set top box that has busybox on it. The problem is that it generates huge amount of zombie processes, and ...
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62 views

Why surt1000xli APC UPS recognised by NUT apcsmart driver as “old”?

So I have this UPS connected to machine with a RS232/USB cable. ups.conf contains [apc1] driver = apcsmart port = /dev/ttyUSB0 desc = "APC USB" And I get the following output: $ sudo ...
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0answers
138 views

How do I run Linux on a MacBookPro(11,2) with more than one CPU?

I have a late 2013 15-inch MacBookPro (MacBookPro11,2). I need to have Linux running on it. The closest I have come is loading Xubuntu, which only boots with the maxcpus=1 kernel option. Question ...
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38 views

Keyboard is disabling

I stuck with a strange problem on OpenSUSE 13.1, after some random uptime my keyboard is disabling. I'm not even sure how to concretize this problem, this happening randomly and I can't see any ...
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112 views

using gmake and make

My Makefile entry has this snippet: ####### Compiler, tools and options CC = cl CXX = cl LEX = flex YACC = byacc CFLAGS = -nologo ...
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0answers
111 views

How to Run a script on USB removal?

I want to execute the script on removal of usb drive. In that script I want to restart the server. Is there any way to do the same ? I know I have to modify the rules in /etc/udev/rules.d/.
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0answers
511 views

External VGA monitor port not working on HP Elitebook 2540p running RHEL 6.5

I'm running RHEL 6.5 on an HP EliteBook 2540p. When I connect the external VGA port to a projector or external monitor and press Fn+F3 to switch to the external port, nothing happens. Under System ...
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0answers
2k views

Route to LAN subnet via OpenVPN client

I am trying to route to a LAN subnet that is connected via an OpenVPN client. I am having trouble with the route command - I cannot make sense of it. The OpenVPN link is established and I can ping ...
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0answers
50 views

Rfkill refuses to unblock the WiFi device

Running rfkill list indicates the USB WiFi adapter is softblocked. I can run rfkill unblock 0 with no error message, yet running rfkill list again indicates the device is still softblocked. ...
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0answers
283 views

Build Mini Linux and Embedded Linux

How to build Mini Linux with Busybox, Kernel-3.15.3, Syslinux? I've built my Mini Linux using these steps: Steps in Building Base Mini Linux Distro 0 . Compile the kernel and see ...
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0answers
136 views

Chromium does not Render webpage (arm)

I am trying to run Chromium (the browser) on a Ubuntu install within Android (ARM) and am facing a weird issue: Webpages are not rendering at all. Links etc within the page are still clickable, ...
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0answers
290 views

How do I know from a BeagleBone Black if it is connected via USB (as a client/slave)?

BeagleBone Black has an USB port which allows the user to access it through ssh. In general, we could say that when you plug it to a PC, the PC is the USB host and the BBB is the USB client. On the ...
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0answers
139 views

Canon MF4550d refuses to print from Linux server

We have several Canon mf4550d printers at the office directly connected to Windows 7 machines. I need to print from a Linux server to those printers. I have installed the latest drivers for my model ...
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0answers
69 views

How do I mcast multiple pcap files simultaneously with guaranteed ordering and controllable speed?

We capture many pcap files every day on many different multicast groups. For the purposes of testing & benchmarking, we wish to replay these files in an isolated environment and in a controlled ...
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0answers
47 views

Is there a limit of GPIOs that can be used in Linux?

When it comes to use GPIOs, is there a limited number that can be used in Linux (except through the limitation of the physical availability/amount of the ports/pins) or is it theoretically possible to ...
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0answers
4k views

Error: iptables: No chain/target/match by that name

I am trying to configure proxy server on RHEL Server 6.5 using Squid and iptables. Below is the command I executed and the error message it displayed: vzlptest01 root [root] > iptables -A INPUT -i ...
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0answers
34 views

ip route match multiple fields

I have a Linux machine set up to forward IPv4 packets. I'm looking to do this: if packet matches both source and destination, forward to GW X. How do I specify the source field? Do I need to use ...
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0answers
83 views

How does an X86 Linux system maintain the system time, when no NTP etc. is in play?

When an x86 Linux system is powered up and running, how does it keep track of software time? E.g. is it incrementing a software counter based on hardware interrupts from the RTC, or is there some ...
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0answers
46 views

Traffic Control user permission

My users need to emulate packet loss on RTP video streams to achieve visual effects. We are in a artistic environment and don't worry about security. The application works only as super user. I ...
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0answers
2k views

checking sendmail status as NON root user

I am in the process of converting to CentOS 6.5 from 5.5 and need a way to check if sendmail is on or not. For reasons I don't want to go through, I need to be able to check if sendmail is ON as a ...
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0answers
31 views

Downloading distro source

I'm using LDME, a Debian based distro. Is there someway, preferably automatic, where one could download the source to everything that might be executed and everything needed by those executables? I'd ...
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0answers
86 views

How do I assign the controlling terminal to other process?

I use TIOCSCTTY to forcibly take over the controlling terminal in other "remote" application. But after the application finishes running, controlling terminal gets orphaned and bash stops reacting to ...
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0answers
111 views

Pcie 1.1 device is not detected on a pcie gen 3 slot

My PC is running in Ubuntu 12.04 LTS with kernel version 3.11.0-23. The link below is my PC model: http://www.villman.com/Product-Detail/HP_Pavilion_500_232d I inserted a x4 pcie 1.1 device on the ...