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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Why can't I start a VNC session using the randr flag?

I'm using Ubuntu 12.04 (I think it's desktop...) and can successfully run vncserver (which ultimately links to /usr/bin/vnc4server) and connect with my client, and I can also add the -geometry flag ...
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42 views

Citrix Receiver fails to run on custom distro

I have a customized OS, based on lfs. GCC, glibc version of this OS matched with that of Ubuntu-13.04 I installed an application named Citrix Receiver on both OS. On Ubuntu, it runs smoothly as per ...
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26 views

linux boot issue

I found an entry in file /etc/ld.so.conf.d/cognos.conf which stopping linux to boot in the VM. Its going to recovery mode after boot. I am not getting grub prompt and os in read only mode. Solution ...
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55 views

GDB up arrow doesn't work

I searched a lot about similar problems but found nothing. When running gdb I couldn't use up arrow for walking through previous commands. Up and down arrows are just ignored. I have started to ...
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44 views

I'm trying to create a public TLD using BIND

I'm using these two guides: jackal777.wordpress.com/2013/11/19/custom-tld-for-local-network/ timg.ws/2008/07/31/how-to-run-your-own-top-level-domain/ When I run dig sokolovskaya.ssu, it looks ...
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136 views

Routing incoming source IP traffic to a loopback IP issue

I'm wanting to accomplish the following: I have a BIND DNS server setup where it is listening on ANY address and also listening in a BIND config ACL on 127.0.1.1. If there is another way where you ...
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43 views

Dovecot/Postfix and mail vmail directory

I've setup a Postfix/Dovecot mail server. I'm using Postfixadmin to set up a SQL users database. My question is If I ever migrate to another server and I don't have the /var/vmail directory ...
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112 views

Ext3 file system became read-only and server reboots spontaneoulsy

We noticed ext3 file system in our CentOS 4.9 server became read-only. We got the following error in dmesg: EXT3-fs: INFO: recovery required on readonly filesystem. EXT3-fs: write access will ...
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151 views

bully can't work on mon0 on Ubuntu 14.04 LTS

I'm running bully on Ubuntu 14.04 LTS. I got this output: [!] Bully v1.0-22 - WPS vulnerability assessment utility [!] ioctl(SIOCGIWFREQ) on 'mon0' failed with '-1221085440' Segmentation fault (core ...
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10 views

Bind address forwarding in Lighty

I have a question not sure is it possible or not, if possible then how ? I have a Lighty running on a Linux system and is bind to localhost only on port 80. I have another web site written in Node ...
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25 views

Files and Directories Dissappearing from Software Raid on Power Failure

I have a home samba file "server" (a raspberry pi) with two hard drives in a software raid 1, which have proven less reliable than any of my non-raid disks. I know there is a chance for data ...
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34 views

File transfer between SSD and RAID array uber-slow

It's really simple: this server has an SSD for the main drive, and a RAID array (mdadm) for storage. Intermittently, it has a problem writing to the array: the write speeds slow down to the point ...
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66 views

Dual boot Linux Mint and Unix (FreeBSD)?

Currently i am using Linux mint 17 currently i am using FreeBSD on Virtual machine but now i want to dual boot Freebsd and Linux How can i dual boot linux mint 17 and freeBSD 10 ?
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125 views

How can I mount the Logitech C270 in the zynq-7000 (with Linaro linux)?

I am doing camera control programming for a university project using zynq 7000. I want to mount the camera module that's for the Logitech C270 (like this ...
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61 views

How to mount GPT nfts partition

I get this with parted: root@rescue / # parted /dev/sda print Model: ATA ST3000DM001-1CH1 (scsi) Disk /dev/sda: 3001GB Sector size ...
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40 views

How to decrease the RAM and Cores for sometime

I have 9 VMs running Ubuntu 12.04.I am using resources from GENI ( Global engineering Network Infrastructure ) to set up topology and i reserved resources with the following configuration. RAM - 4GB ...
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218 views

How to configure teaming in RHEL 7?

I've used RedHat documentation to configure LACP on my server. Now I see "Connecting" on the Team just created: why "team0" is mentioned twice in the list? Why is it "Connecting", not "Connected? ...
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87 views

Missing macros for VSYSCALL in Linux 3.16.4

I am running Arch with kernel version 3.16.4. I need to compile a kernel module for running Intel Vtune '13 (r17). GCC reports the following: ...
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55 views

Best approach to adding a kernel driver

I have a task to complete. An LED must be controlled immediately after the kernel loads and into the launch of a Debian system. It also must be controlled in user land. I already have basic LED ...
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35 views

BSPWM on OpenSUSE 13.1

Okay so I want to install BSPWM on OpenSUSE 13.1, I have herd good things about the environment the fact it can be customized while still been a very effective text environment. Reason I want this is ...
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37 views

Zone Normal range in system with 4G RAM

I have a 4GB RAM in my system. Following is my BIOS provided RAM map. [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009d7ff] usable [ 0.000000] BIOS-e820: [mem ...
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19 views

Mange the source code of kernel

If I download a kernel source tree and decompress it to get below directory: linux-3.13.9 I make a copy of it: cp -r linux-3.13.9 linux-3.13.9.orig, and then I modify one file and run a sequence of ...
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44 views

Start menu position in Linux Mint Petra

I added a panel at the bottom panel, then added the start menu button. The button is now located at the right corner of the panel, beside the month calendar. I want it to be where it always has been, ...
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216 views

network manager not listing wifi

When I use NetworkManager command tool to scan for wireless networks the output is empty. root@radxa:~# nmcli dev wifi list SSID BSSID MODE FREQ RATE SIGNAL SECURITY ACTIVE ...
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21 views

fsix Gold Server with Goldkey smartcard. Need to decrypt volume

I have a client that stopped paying support to WideBand and I have no clue how to get their files off that server and onto something newer. I can logon over the network but when trying to bulk copy ...
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27 views

Show power consumption (not on battery)

There are several tools for showing the power consumption when running on battery (PowerTOP is one of the better knowns). Is there also a way of showing the power consumption when not on battery (i.e. ...
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58 views

fails to boot after reboot (update required), mouting failed and no init found

After updating my ubuntu system, it requires me to reboot the pc. So I did it and then the following message shows on the screen: mount: mouting /dev/loop0 on /root failed: Invalid argument mount: ...
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19 views

Choosing only several wallpapers in Wallch

I'd like to have my wallpaper changed periodically. Unfortunately, Wallch gives me the option only to auto change all wallpapers. Can I select some wallpapers to be changed without copying them ...
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18 views

Change language of GNOME update manager

I was in France some weeks ago and used my laptop there. While being there and using the internet, I noticed that the GNOME update center changed its language from German (my locale) to French. I just ...
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41 views

How can I show battery percentage at u-boot?

I am checking the battery level from my sensor and able to display a static 'low battery' or 'in charging' image.How or what approach should I take to show the level of battery percentage through ...
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33 views

Linux - Install Wireless Card Driver

I trying to install a wireless LAN driver in my aircrack-ng v4 Virtual Machine but failed. I downloaded "iwlwifi-6000g2b-ucode-17.168.5.2.tgz" for my Chipset (Intel Centrono Wireless Card 1030) and ...
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294 views

Does the timeslice depend on process priority or not under Completely Fair Scheduling?

I'm trying to understand the Completely Fair Scheduler (CFS). According to Robert Love in Linux Kernel Development, 3rd edition(italics his, bold mine): Rather than assign each process a ...
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25 views

Waking nm up from sleep

nmcli g shows state: asleep. But since nmcli 0.9.10 it is no longer possible to wake up the network manager with sudo nmcli nm sleep false How do I wake it up in the new API?
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76 views

I have made custom audio cape using TLV320AIC3107 codec and here is a schematic diagram

I have made custom audio cape using TLV320AIC3107 codec and here is a schematic diagram. For connection with BeagleBone Black I refer audio cape which is available in market. here is a link: ...
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41 views

How to get diff for HTML reports?

echo "New defects" echo "===============================" n=0 def_num=0 while read line; do n=$((++n)) if echo $line | grep '^[[:space:]]*>' &>/dev/null; then if [ $(($n % ...
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83 views

GParted hangs while resizing partition

I decided to shrink a FAT partition on my memory card by 768 MB to make place for a new one. GParted hangs on the fsck step. The progress bar halts and any window above it leaves the part of the ...
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30 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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312 views

Capstone for Python not working

I'm unable to get Capstone for Python to work. I have attempted to install capstone both using pip and compiling and installing from source. Both are successful, no errors, but neither works. I've ...
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133 views

Folding in vimrc does not work as expected

I added these to my vimrc: set foldenable set foldmethod=syntax set foldlevelstart=1 let javaScript_fold=1 " JavaScript let perl_fold=1 " Perl let php_folding=1 ...
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24 views

third party linux auditing software

Linux has a audit system built-in in its kernel and a user space process called auditd reading the system calls intercepted by the kernel. Are there alternate solutions to the Linux Audit system ? I ...
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40 views

How do I rescue Qubes OS?

When logging into Qubes I get a black screen of death (no backlight). After setting up /mnt/sysimage in rescue mode, rebooting fails because exiting shell (ctrl+d) gives a Pane is dead error. ...
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332 views

Problem dual booting windows 8.1 and deepin on 2 different hard drives

I have two internal hard drives, one is 320GB and the other is of 1TB. I've installed windows 8.1 on the first one (the 320GB hdd), and using mini partition tool wizard I've partitioned my 2nd hard ...
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58 views

How to bind IP address to MAC in autoyast?

Is it possible to bind IP to physical address in autoyast config file? The following code doesn't do the trick: ... <interfaces config:type="list"> <interface> ...
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18 views

Gnome-keyring iteration count location

I know that Gnome-keyring hashes master password between 1000 and 2000 times. It picks random number. I would like to ask where does it save this number, what is the location of that file? As far as I ...
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58 views

How to access a RHEL desktop remotely without unlocking the screen?

I usually leave a lot of processes running on my RHEL 6 workstation, and sometimes need to access the desktop remotely on my Macbook. I have used Screen Sharing on Mac and it works fine, except that ...
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38 views

Red Hat Linux 3 in VMware Workstation 10 hardware question

I am running a very old copy of Red Hat 3 from 1999 in VMware Workstation 10 and I cannot get the X11 display server to go above 320*200 resolution. Installing VMware additions is out of the question, ...
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22 views

How to tie a keyword (to be pasted) to a key in Linux

I have to configure the keyboard to paste text 'abc123' into any program after pressing key combination Alt or Ctrl + a number. It has to work for every program, and I prefer to do it through the ...
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924 views

Black Screen after log-in in linux Mint 17 Cinnamon Qiana

Installed Linux Mint 17 Cinnamon Qiana on my Toshiba Satellite M55. Every once in a while I get a Black Screen after I log-in and I all see is the Mouse pointer. I checked and double checked the ...
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1k views

Linux curl request for SOAP webservice call

I have a SOAP webservice WSDL and when I make a call with SOAP-UI tool, it works perfectly fine.... Now, Im trying to mimic the same call using LINUX CURL but get a 404 error, Here is my CURL ...
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46 views

Cinnamon doesn't load at launch loading LXDE instead, what is wrong here?

Hi I Found myself with this weird issue that after installing Cinnamon desktop environment on a Debian-based linux distro, with apt-get upgrade apt-get install cinnamon, at the log-in moment even ...