Questions specifically about Linux, as opposed to Unix-like systems in general, or to questions about a specific distribution or program.

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0
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0answers
36 views

Windows and Linux with UEFI

I previously had a computer with both Windows and Linux, totally separated since I always unplug the hard drive with the operating system not being used. When I upgraded to a mother board with UEFI, ...
1
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1answer
37 views

How does Debian select or prioritize IPv4 and IPv6 connections?

I'm going to explain my question with an example. I have two servers, A and B, both runs Debian 7.8, both have dual-stack connection to the Internet (I don't know if it matters but they even have the ...
1
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2answers
40 views

determining dvd drive capability

Aside from checking the manual for a particular DVD drive, is there any way to determine if a DVD drive supports DVD +R/-R (DL) for both reading and writing? In Windows, Nero InfoTool is a convenient ...
0
votes
1answer
25 views

shell script to search files under multiple directories and renaming them

I have 3 main directories, each main directories have multiple sub-folders and files in the sub-folders with different names and extensions. I would like to have a script which does find in all the 3 ...
5
votes
1answer
30 views

What memory is not used by processes and freed by `echo 3 > /proc/sys/vm/drop_caches`?

Without programs open, my computer uses about 512M of memory. Yesterday, I had nothing open, yet 2 GB of mem use (used - cache = 2153): total used free shared buffers ...
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0answers
17 views

make_tape_recovery: is possible to do the same on linux?

On hpux,i use a fantastic tool from ignite-ux make_tape_recovery -x inc_entire=vg00 -A -v -m pax -E With this i make and image on tape,and even if VG00 is corrupted and or unavaliable,or something ...
0
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0answers
38 views

How do I write a script for testing username/password? [duplicate]

I have about 500+ hosts I need to test a username/password combo to make sure there aren't any false positives in the list. I just need to make sure I can login and log out, no need to run anything ...
2
votes
1answer
189 views

Error “/run/lvm/lvmetad.socket: connect failed: No such file or directory” - but not Grub related

All LVM commands give me the error /run/lvm/lvmetad.socket: connect failed: No such file or directory. I Googled this error and found only postings related to Grub and Grub-install. wish to get rid ...
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votes
2answers
18 views

Unable to search a file location

i am unable to locate files or directories while executing below commands. getting below error: $ locate httpd locate: can not stat () `/var/lib/mlocate/mlocate.db': No such file or directory
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0answers
36 views

WiFi unable to connect after sleep ath9k

When I put my PC to sleep and wake it up, it cant connect to WiFi anymore. Sometimes it asks me 5 times to re enter my password and if it manages to connect connect the ping is 2000+, iwconfig says ...
2
votes
1answer
24 views

Set default color for top

How do you set the default color for top? Right now there is a red that I can barely read. You can toggle from mono to color with z or set it up more thoroughly with Z. But none of those settings ...
4
votes
1answer
173 views

bashrc lazy substitution

How does one get ~/.bashrc aliases to evaluate $() substitutions at run time, instead of at the time that ~/.bashrc is executed (when opening a terminal)? I run this command often enough that I would ...
0
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0answers
27 views

Scientific linux GUI Doesn't start

I am a new user of Scientific Linux 6. I am working on a project started by others and unfortunately the GUI stopped working. I need to find out how to troubleshoot the GUI to solve the problem. What ...
0
votes
0answers
11 views

Creating “new” fonts from font variants, using font.conf

Is it possible to make font variants such as condensed versions of certain font families available, by assigning new names to them? In my case, I would like to make use of DejaVu Sans Condensed. The ...
1
vote
0answers
33 views

Map a Linux VM's block device to its vmdk file on the vmware datastore

For development and staging purposes, I must frequently create clones of individual virtual harddisks (vmdk container) and move/deploy them into some other system. While I have been able to hack a ...
1
vote
1answer
27 views

What do the terms CC, LD and SHIPPED refer to during the Kernel Source compilation process?

What do the terms CC, LD and SHIPPED refer to during the Kernel Source compilation process? Am I correct to assume that [M] indicates that it is being compiled as a module?
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0answers
9 views

Diagonal touchpad movement results in wobbly line

I'm using a ThinkPad L440 with a Synaptics touchpad. A while ago (~1-2 months) the touchpad started acting strange when trying to move the mouse pointer diagonally. The picture shows the first line ...
0
votes
1answer
26 views

how to add application to initrd.gz

I have an initrd.gz (from linux parag*n live cd) I want to edit the file inside and add app like apache,ophcrack,etc. So far I've done extracting by following these step ...
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0answers
36 views

How to artificially cause a page fault in Linux kernel? [migrated]

I am pretty new to the Linux kernel. I would like to make the kernel fault every time a specified page 'P' is being fetched. One simple conceptual idea is to clear the bit indicating the presence of ...
5
votes
2answers
42 views

Define physical volume inside non-partitioned disk

I've been able to define a physical volume (LVM) in two ways: Creating a 8e (Linux LVM type) partition and then # pvcreate /dev/sdb1 Usign pvcreate directly using a non-partitioned disk and then # ...
2
votes
0answers
52 views

mdadm Software RAID1 with GPT on Debian 8.0 amd64 - Does not boot on disk removal [closed]

INTRO: I have spent countless days attaching/detaching MOLEX->SATA power cables, rebooting machines and trying hundreds of edits and commands. I am on the verge of desperation and desperately in need ...
0
votes
4answers
83 views

delete all .swp file using rm command

I am trying to find and delete all .swp files in my current directory. I was using below command: rm -i `find . | grep .swp$` But everytime it is giving me this error: rm: missing operand Try `rm ...
2
votes
0answers
32 views

Using autossh to create a persistent, multiplexed ssh connection without any port forwarding?

I want to use autossh to maintain an ssh session configured for multiplexing. This way I can write scripts on my localhost that take advantage of the persistent ssh connection. I'm having trouble ...
0
votes
1answer
33 views

How to get a list of major number -> driver associations

http://www.nostarch.com/tlpi states: "Each device driver registers its association with a specific major device ID, and this association provides the connection between the device special file and the ...
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0answers
82 views

Unable to boot Kali Linux 1.1.0

recently I have made a USB livestick for Kali 1.1.0 with lili and with Win32DiskImager and tried to boot it in Windows 8.1. When I came to the boot order menu my USB was recognized as an UEFI-device, ...
3
votes
1answer
142 views

Which file in /proc gets read by the kernel during the boot up process?

Which file in /proc gets read by the kernel during the boot up process? This was a question on my LPIC 101 test that I think I might have answered wrong. I searched on google and some other places but ...
0
votes
0answers
32 views

Unable to access localhost in Oracle VM (CentOs[Guest]) from Windows7(Host)

I'm trying to access the localhost in VM from Windows 7 64bit(Host OS), but unfortunately getting "Not Found" Http Error 404. I'm able to login to VM using Putty. Below are the work environment ...
1
vote
0answers
34 views

Why can't Adobe Flash for Mac run on Linux?

As we know, Adobe no longer develops new Flash versions for Linux (except for Google Chrome, i know). It does, however, develop actively Flash for Windows and Mac. Linux can run native Windows ...
4
votes
2answers
67 views

How to find out which process keeps tunnel interface(tun) up?

If I create a tun interface with ip tuntap add mode tun command and force it administratively up with ip link set dev tun1 up command, then the interface itself is always "physically" down: ...
0
votes
3answers
44 views

Change display output with xrandr?

My roommate has a really old 1280x1024 VGA display that the driver sets to 1600x1200 by default and it causes it to display a message saying it can't display the input. I can ctrl+alt+f1 and use ...
0
votes
3answers
63 views

Windows to Linux migration [closed]

I have been working with windows application development in C++ and SQL for around 3 years. I want to learn to develop C++ application on Linux and get myself little comfortable with Linux operating ...
3
votes
2answers
49 views

Detect and respond to ping in userspace

Is there a way to make a linux system react or do something when pinged from another device, besides just sending a reply (or not)?
1
vote
2answers
59 views

busybox tar or split large file to multiple smaller files

I am running Linux version 3.4.8 on an at91sam9g20. I want to take a large record and split it into multiple files. I have tried a number of methods, but none appear to function correctly, e.g. ...
0
votes
0answers
28 views

Configuring tun0 and tun1 IPSEC interfaces

I'm trying to make two IPSEC tunnel interfaces in order to make a bonding but i don't know how to start it since i can't find any tutorial showing something similar. Can anybody gives me an indication ...
0
votes
1answer
70 views

Change screen resolution into Kali on Mac BookPro

I installed Kali in dual boot on my Mac Book Retina, all work, but I have a screen resolution too high. So I need to change the screen resolution, but if I change it, the screen become black, and ...
0
votes
0answers
45 views

connecting to virtualbox ubuntu from osx extremly slow

I am running ubuntu 10.04.x as guest on virtualbox from osx x 10.10.x host It works (kind of), but after working a while with it and also after power sleep it can get almost unusable slow. It looks ...
1
vote
0answers
51 views

dhcp ipv6 dynamic prefix delegation

I'm trying to setup Linux-based home gateway with IPv6 support. IPv4 configuration is finished and I'm using IPv4 NAT, ISC DHCP for addresses allocation, PowerDNS for local DNS setup, PDNS recursor to ...
0
votes
1answer
34 views

Linux drop packets if received from another equipment

Problem description : When I establish a VPN connexion between a VPN client and my home server, if the connexion are both across my firewall (pfSense) or are established directly, the connexion is ...
2
votes
1answer
45 views

How can I rasterize all of the text in a PDF?

You know when you have a pdf, which is a scan of a document and it's a really huge file, because it just stores the picture of the scanned document? And there are OCR tools which can help you to ...
4
votes
1answer
441 views

Can I write C programs for Linux on OS X?

In case I'm writing a program (of any kind) in C, that is meant to be run on Linux environment, can I write it under OS X? (concurrency wise for example) I'm asking this because I like programming in ...
3
votes
1answer
47 views

use tar to extract and immediately compress files from tarball

I have a compressed tarball (eg foo.tar.gz) that I wish to extract all the files from, but the files within the tarball are not compressed. That is to say, the contents of foo.tar.gz are ...
0
votes
1answer
14 views

How to capture traffic from a website using tcpdump

I need to capture traffic to https://gmail.com using tcpdump. I solved this by using tcpdump -n dst host <ipaddress of gmail> But is there any way I can directly specify gmail.com instead of the ...
2
votes
0answers
36 views

How often are user repositories abused? [closed]

No matter which distribution you use, you probably have a package manager and most likely installed one or two packages from an "unofficial source", meaning a regular user has provided it. As ...
2
votes
1answer
113 views

Mount linux mount in windows (without ftp)?

I successfully mounted my external hard drive (ntfs) to /mnt/seagate. I'm using debian and the server is connected over LAN to my PC. So how can I mount my hard drive in my windows explorer without ...
-4
votes
0answers
35 views

Please help me with below expect code

Can anyone please help me with below code :- spawn /usr/bin/scp /opt/ldap/unboundid/backup/binbak/ConsumerDev/binbak_`date +%Y_%m_%d`.tar ...
2
votes
1answer
25 views

Get the time when nohup R program finishes

I want to get the time when program finish. But it always show the same time. Here is my shell script. But it always show that START TIME is same as END TIME. START=$(date +"%r") nohup Rscript ...
0
votes
1answer
32 views

How to benchmark memory in an embedded linux device?

Is there a generic utility to benchmark external memory device (eMMC, DDR) throughput on an embedded device (e.g. raspberry pi)? memtester, bonnie, bonnie++, memtest, dd? I've been running into ...
2
votes
1answer
89 views

Run script every 30 min with systemd

I would like to execute a script every 30 min after booting into the system. I know you can use cron, but I don't plan to use this feature often therefore I'd like to try it with systemd. So far I ...
0
votes
0answers
31 views

Install Acrobat Reader in SuSE 10.3

How to install Adobe Acrobat Reader in SuSE Linux 10.3 using commands in a terminal?
1
vote
1answer
49 views

Extracting duplicity backup data

I've made some backups of my previous systems using Deja Dup (duplicity). In my current distribution it's not available, so I've simply extracted the data. Now in order to make that data meaningful ...