These questions are about Linux in general -- NOT specific to a particular distribution. If the question just happens to be in a Linux environment, please specify your Linux distribution in the body of your question, but do NOT use the /linux tag.

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34 views

libvirtd fails with iptables on Linux 4.3.2 (Debian)

When I start libvirtd on a selfbuild kernel (make olddefconfig), it fails setting up bridge virbr0 with: internal error: Failed to apply firewall rules /sbin/iptables --table nat --insert POSTROUTING ...
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1answer
37 views

In bash I'm unable to concatenate a string using a variable defined from output of echo + sed

I'm trying to concatenate a string with $result. Placing another string BEFORE $result results in the two strings not being concatenated: ...
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1answer
28 views

Using a list to exclude results from wget command download

Say I have a file called download.txt. In this list is the following: File1.file File2.file File3.file Is there a way to use wget command to use that list to download all files from a directory ...
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0answers
59 views

Installing crunchbang 11 from live usb to hard disk

I am trying to install crunchbang from live usb to hard disk. Everything is working file and it shows the menu to install the linux. But when I click on install it doesn't install the linux in hard ...
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1answer
60 views

Writing to terminals of other users

I know that you can use write or wall to write to users but you can't use these to send sl. I tried sending it through /dev/pts/* but that is strictly controlled, so that only the owner and tty are ...
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1answer
76 views

which process was running on a particular time in linux [duplicate]

Is there any way to find which process was running on a particular time in linux? I found the disk utilization was 99% and CPU utilization was 100% on two different times yesterday. The issue was ...
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1answer
28 views

mysql monitoring tool

Is there any monitoring tool for mysql which will send a notification mail to mentioned email ID ? It must monitor below parameters. 1. mysql more than 500 concurrent connections. 2. mysql deadlocks. ...
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0answers
39 views

I edited grub.cfg and linux mint won't boot now (virtual box)

So I was trying to boot DOS on Linux mint and found an old article, which told me to add this: title DOS update utility root (hd0,0) kernel /memdisk initrd /dosboot.img.gz in grub.cfg. I ...
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2answers
559 views

ffmpeg: nvenc mit crf option - very low bitrate

I bought a new computer some time ago.. I installed nvenc for ffmpeg to encode my videos with the h264 codec. To optimize i used the -crf option but something went wrong.. I want to encode a full ...
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1answer
368 views

Alsa not detecting the good sound card

I tried hard to figure out what's going on with my alsamixer but it seems I'm missing something. I'm using Debian Jessie with xfce, and my sound card has sundainly stoped working (playing). The sound ...
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0answers
70 views

Poor signal on bluetooth

I'm having some difficulties with my Bluetooth keyboard on Arch Linux. Using these other OS's, no problems with the range of Bluetooth, range: about 6 meters: Windows 7, 64-bit Windows 8.1, 64-bit ...
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0answers
37 views

oracle linux 7: network error when starting the virtual machine first time (DHCPDISCOVER on eth0 to 255.255…)

I'm working on virtualization project and I'm trying to set up a new service that needs to set up ifcfg-eth0 where the network configuration is stored for static ip and thus this service must complete ...
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0answers
27 views

How to change audio settings as non root user?

I am using kali linux version 3.12 (the old one). I am unable to access sound settings as non root user. I am unable to open Pulse Audio as well. The message I get is something PULSE_SERVER in ...
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0answers
79 views

Openssl installation in RHEL 6.2

I had openssl 1.0.0-fips in my RHEL 6.2 box. I tried to upgrade it with openssl-1.0.2e. It got installed successfully. However when I try openssl version I still get the old version. Further I see ...
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votes
1answer
19 views

Cannot find shared object in /usr/lib

Im trying to install ginac on a centOS 6.5 system. But run into strange problem that the installation cannot find the file libcln.so.6 even though I've installed the packaged and file exists in ...
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0answers
54 views

NFS client much more inbound traffic than outbound? Why?

I have a debian box that acts as a NFS server: Debian 8 server settings: $ apt-get install nfs-kernel-server nfs-common #/etc/fstab /dev/disk/by-uuid/6e7815a5-cd91-450c-8e83-479f732ecd87 ...
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0answers
148 views

Block IP Fragmentation attack using iptables

I am trying to stop all MF flag packet which has more fragment big set. because i have seen many IP Frag attack taking advantage of it. I know its not a good idea to do but, I have test my application ...
0
votes
1answer
380 views

Wifi drivers not installing

I just got myself a laptop with a Intel dual band 8260 Wifi adapter and I've installed linux on it but it doesn't install my drivers. This is a modinfo for iwlwifi filename: ...
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0answers
35 views

FORENSIC PURPOSE - Acquire Android image using flash drive OTG

In Linux, the dd command is used to pull the image from the smartphone to computer. And of course, the smartphone need to be rooted before the dd command launched.From the research i do and multi hand ...
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0answers
25 views

NUT UPS upssched Debugging

I've recently added a UPS to my server and went through the setup and everything is working fine but I am trying to use the upssched.conf to schedule some separate bash scripts. I added the following ...
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0answers
20 views

creating a 2nd ath9k_htc instance with a different firmware

I have 2 usb wireless ath9k_htc based devices in linux. They need a different firmware, htc_7010.fw and htc_9271.fw When I attach only one device it works as expected: [ 192.360102] usb 1-1.2: new ...
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0answers
14 views

last samples are skipping when we do record and playback in loop back mode in linux

I am just connecting my output to the input of codec using mixer controls in linux. I am recording the data with tinycap in bag round and then I started playing of a 30 seconds sine tone using ...
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1answer
34 views

Not registering wireless adapter / kali on virtualbox

ifconfig wlan0 returns a wlan0: error fetching interface information: device not found I am using a TP-LINK TL-WN722N on Kali Linux in Virtualbox.
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0answers
16 views

How can I encrypt disks in Mint-17 without destroying the data

I have a mint-17 machine with 2 disks managed through lvm. I would like to encrypt the disks. I need to keep the data/apps intact. Is there a way in mint if I could just encrypt the drives or ...
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0answers
25 views

Create a bridged interface like VirtualBox

When I createa a VirtualBox VM with Bridged Network (manually specifying which interface to bridge into) my VM gets IP address from the DHCP server in my LAN. How is this interface created? I want to ...
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2answers
876 views

Kali Linux 2.0- htc_9271.fw download failed

I am trying to get my wireless adapter TL-WN721N to work on Kali Linux 2.0 64 bit which is running on virtual box. lsusb Bus 001 Device 005: ID 0cf3:9271 Atheros Communications, Inc. AR9271 ...
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0answers
40 views

Restart service after boot then enable networking ordering

Problem: Server application when first started upon boot has memory leak. When service is restarted, it will then run without issue. Temporary solution is to: AFTER the OS has completed booting, ...
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votes
1answer
132 views

Device Trees: Difference between labels and aliases?

In the file imx6qdl.dtsi is the following definition of gpio nodes (somewhat shortened): gpio1: gpio@0209c000 { [...] }; gpio2: gpio@020a0000 { [...] }; [...] gpio7: gpio@020b4000 { ...
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0answers
16 views

Sudo access without any password prompt [duplicate]

I have set up sudoers.d file unix as below:-- User_Alias OOZIEUSERS1 = user1, user2 Runas_Alias APP1 = oozie Cmnd_Alias SU_APP1 = /bin/su - oozie OOZIEUSERS1 ALL = (root) SU_APP1 ...
0
votes
1answer
254 views

CentOS 7.1 - how to install gnome commander

I have CentOS 7.1 and cant install gnome Commander. I dont see it in the Software module as well as yum install gnome-commander does note see the package. I tried RPMs from ...
0
votes
1answer
644 views

Cannot run test program while cross compiling - cross compiling Firebird

I've tried to compile firebird server for arm linux, with cross-compiler (it's choosen - it's working properly). When using: ./autogen.sh --host=arm-linux-gnu I get this error: checking for ...
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0answers
159 views

Create CentOS-7.1 custom iso with upgraded kernel-4.2.6

I am trying to create CentOS-7.1 custom ISO with kernel-4.2.6. But I am facing issues while installing. Please see attached image for details. I have followed the following steps to prepare a custom ...
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0answers
60 views

How to delete Ubuntu without damaing another Linux distro?

I have 3 partitions on my computer they're dual-boot, Red Hat, Ubuntu & Windows 8. I want to get rid of Ubuntu and keep Red Hat & Windows 8. What would be the safest route to achieve my goal. ...
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0answers
9 views

how to safely increate ip_conntrack value

How do i calculate how much memory my single ip_conntrack connection will eat? I am planning to increate ip_conntrack on system but i want to be careful to not overcommit number. Is that any basic ...
0
votes
1answer
87 views

Beaglebone black Linux kernel 3.8 images?

I had to flash my beaglebone black with Debian 8.1, but I'm having trouble running/installing a lot of node modules I need for interacting with the hardware. From what I can tell my problems are ...
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votes
0answers
15 views

4G USB Wireless Internet Device Activation Error

I am using Ubuntu 15.10 on a Dell Vostro 1500. I tried to get a 4G wireless internet device (Sierra Wireless AirCard 320U) to work but got the following error message. Could some please explain what ...
0
votes
1answer
164 views

Cannot ping VirtualBox VM using bridged network

I have a Fedora 22 laptop with a VirtualBox VM on it. All worked fine when I attached the VM to my wireless network card, but I want to attach it to my hardwired card because the wireless changes. But ...
0
votes
1answer
23 views

How to start multiple graphic sessions?

I need to test my application on a friend's mac. Not to disturb him, I thought I could connect me to his PC through SSH (with -X option), but to avoid opening the app in his session, a new session has ...
0
votes
1answer
155 views

Error in named.conf

I am getting the following error: Starting named: Error in named configuration: zone blk1999.lab/IN: loaded serial 2001062501 zone localhost.localdomain/IN: loading from master file named.localhost ...
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0answers
62 views

use loop with ftp

what is the best scenario when the situation is that a client and server keep same files. The client connects to server to check whether files have change or not, if different it will upload it and ...
0
votes
2answers
49 views

Which DB2 client package is needed to compile embedded SQL programs?

I have to work on some embedded SQL files (.sqc) for DB2 which will be compiled on Linux. The DB2 command line processor (db2 command) has to be used for precompilation. What of the many DB2 client ...
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votes
0answers
29 views

Fedora/OSX Dual boot

I have been getting my mac ready to dual boot with Fedora. But when I get to the fedora set up, it only lists my Mac hard drive, not the partition I have created. My Partition: ...
0
votes
1answer
20 views

Keybord-key and the resulting character. Who is responsible (in the OS) [duplicate]

Pressing a key on the keybord results in different types of characters in different OS's. e.g. pressing the up arrow in windows will result in a nother sequence of characters then pressing the same ...
0
votes
0answers
88 views

Installing mysql-server always prompts me to configure mysql-server-5.5

This is so confusing, I am trying to install mysql-server using this command sudo apt-get install mysql-server but it displays these lines Reading package lists... Done Building dependency tree ...
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votes
0answers
33 views

Install ifenslave in older busybox version

I would like to bond my ethernet interfaces and as much as I know, I need ifenslave for that. I use an older busybox version so it isn't installed how can I install or update it?
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votes
2answers
239 views

File System with permission as “rwxrwSrwx”

I have a shared directory from SAN, whenever I create a folder or file inside that directory, it already has permissions; for directory we have "drwxrwxrwx" permission and for files we have ...
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votes
0answers
50 views

My computer only boots at acpi=off for any linux distro,what should i do?

I think booting with this parameter won't affect my laptop but it disables wifi by hardware switch and may be my laptop will not hibernate. please help me fixing this problem ,I know this is a common ...
0
votes
1answer
33 views

SSH tunnel between 3 box to get internet access

The network looks like this : Server X -- My machine -- Server Y My machine has SSH access to both boxes. Server Y has internet but not server X. How can I make a tunnel so server X can acces the ...
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votes
0answers
8 views

Access images in Mint 17.2

Linux Mint 17.2 has lots of magnificent images that appear on the login screen. I would like to use these images for other things, such as the desktop background. Can anyone tell me where I might ...
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0answers
49 views

Autostarting shell applications using Startup Applications Preferences?

In gnome I run "Startup Application Preferences". After that I press add and in comamnd field I write: logkeys --start. However, logkeys doesn't auto start. How to fix it?