Linux refers to the family of Unix-like computer operating systems using the Linux kernel. If your question is about a certain distribution only, use a more specific tag.

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Can login in to Gmail and Chrome, but can not access accounts.google.com

I visit the Internet through a VPN, my DNS has been set up as 8.8.8.8. I can ping through domain names include accounts.google.com and 1.client-channel.google.com, they all works. So far as I know, ...
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25 views

How to disable a plugged-in PCI-e graphic card on OS level?

I have a server running for which I want to have a possility to access it with a screen connected to VGA (very rarely, most of the time it's accessed via SSH). Therefore I have a PCI-e graphic cards ...
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2answers
32 views

Should I dual boot (or triple boot) or use Virtualization [closed]

I have a 15" Retina MacBook Pro (July 2014) with 16GB RAM, 512 GB SSD, and a quad core i7, that I use for school. I program in multiple languages, and do penetration testing projects, but right now I ...
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3answers
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How can I have very large files/directories copied from one host to another “offline”?

I intend getting a vps server real soon for some of the resource-intensive sites I manage. I live in a country where 1Mb/s internet speed is a luxury and constant uninterrupted electricity, a myth. ...
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6 views

equivalent of iptables rule in ip6tables

I m newbie in the iptables. I have the following iptables rules in the source code of a project iptables -t mangle -I PREROUTING ! -i br0 -p TCP --dport 45 -j MARK --set-mark 0x1000 iptables -t nat ...
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2answers
30 views

iptables directing traffic through vpn

Networking newbie. I have two interfaces on the host: eth0 and tun0 from my OpenVPN client. The IP addresses are: eth0 192.168.1.22 tun0 10.1.0.8 Question 1 For outgoing traffic by changing ...
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10 views

Exchange Server 2013 with Linux domain controller

Consider the scenario: in DMZ LAN, a company is willing to replace Zimbra mail server (running in Linux server) with Exchange Server (running in Windows server) in LAN, employees use Windows in ...
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17 views

what the “!” means in the iptable rule

what the "!" means in the following iptable rule iptables -I inacc ! -i br0 -p UDP --dport 69 -j ACCEPT I think is related to the interface br0. I think it mean any interface except the br0 Am I ...
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3answers
37 views

How to create a group, add user to group, and give that group full access to directory in linux

I have my local user localUser who has directory /home/localUser. There is another user serviceUser who runs some services and he needs full access to some folders in my home directory. I want to ...
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1answer
46 views

Fastest remote desktop alternative to RDP on Linux [on hold]

What is the fastest available alternative today for remote desktop connection on Linux? I've tried following but all seems slow compared to Windows RDP: X11 forwarding (even with compression and ...
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1answer
33 views

Purpose of each disk access and why it may not occur [on hold]

I'm going over past papers for an exam I have and my university do not provide answers so that I can check them, please could you let me know if my understanding is correct and if not please could you ...
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26 views

Ms office 2010 not working in fedora 22 in wine

i am new in Linux, Using fedora 22 beta. i have installed wine. Then installed ms office standard 2010 package. Everything was okay except the Ms power point.Then thought as we do in windows, i will ...
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1answer
20 views

What does “warning: nm: no name list” mean?

I'm trying to grep for a symbol in a library. $ nm /usr/local/ssl/macosx-x64/lib/libcrypto.a | grep rc4_md5_enc warning: nm: no name list warning: nm: no name list warning: nm: no name list ... The ...
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1answer
32 views

Why did the naming convention of network interfaces change in linux?

I recall not too long ago, interfaces were identified by eth0, eth1, wlan0, etc. Now I'm finding interface names like enp0s3, enp0s8, etc. In another question I asked here only moments ago, someone ...
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2answers
24 views

Database backup bash working via ssh but not in cronjob

I've put together a script to backup my database on a shared host. The script is as follows: mysqldump --databases [db1] [db2] | openssl aes-256-cbc -a -salt -pass ...
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2answers
38 views

In Virtual Box, how do you know which NIC is which from the linux command line?

I've run into a problem a few times now where I'm installing linux in a virtual machine, and all of my interfaces look like "enp0s3" or "enp0s8" ect. In one test, I was running a VM with 4 virtual ...
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1answer
10 views

Problems with function checking if a path exists or not

I am a little new to bash scripting and I was trying to make this program capture a directory path from user and then check if the directory is present. It seems as if the variable SRC inside the ...
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1answer
19 views

Cat and/or echo several things into one file on “one command line”

I know we can do things like this: stat -f%z mybigfile > RELEASENOTES.txt and echo "bytes" >> RELEASENOTES.txt Now RELEASENOTES.txt will look like this: 47556304 bytes How can I get ...
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0answers
16 views

Sharing HFS+ (USB-HDD) over NFS

I've hooked up an external HDD to my Raspberry Pi running Raspbian. It shows up under /dev/sda2 and /dev/sda3 (two partitions). I followed numerous tutorials, but none seem to have a fix for my ...
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1answer
24 views

How to show path in shell, but only a fixed number from pwd?

Basically, I want to display something like: me@host.serv.com:../projects/1234/source$ cd cpp me@host.serv.com:../1234/source/cpp$ instead of: ...
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1answer
13 views

Remove PostgreSQL database files

I've uninstalled PostgreSQL some time ago, but now I needed it again, and installed it. When running rcpostgresql I get the following: /usr/sbin/rcpostgresql Your database files were created by ...
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11 views

Linux interrupt handling : bottom half

In Linux, the handling of interrupt handler is divided into two components : top half, and bottom half. From my understanding, the bottom-half of an interrupt handler can be handled in many ways : ...
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29 views

Kali Linux gives me an error message when i try to use setup

When i try to setup Kali Linux i get an error message saying it cant find win32-loader.ini. I have also tried just booting it but a CMD window pops-up for a blink of an eye not nearly enough time to ...
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1answer
18 views

file owner doesn't belong to file group

hopefully quick question regarding web server write and read permissions. Here's the thing. Currently I have this setup on a production server: ... drwxr-xr-x 12 apache developers 4096 Apr 27 ...
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1answer
8 views

How can I disable KDE Alt-` behaviour

After upgrading my Linux Slackware, KDE started to respond to a new key shortcut, which did not happen before. When I click Alt-`, I see the icon of the current window with it's title in the center ...
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1answer
23 views

Changing ownership not permitted

Probably answered many times, but I connot find the solution of my case. I'm compiling a Yocto project with bitbake. A recipe of bitbake try to change the permission of some dir and files using ...
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1answer
16 views

Make a group be able to run shutdown command without entering a password (CentOS)

I used the command visudo -f /etc/sudoers to edit the sudoers file. How do I make a group be able to run the shutdown command without supplying password?
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2answers
18 views

SSH Connection is established on port 22, but service is not working

I am having this recurrent issue on one of my MySQL Cluster Servers, actually always happens in any random MySQL server of this cluster, on many countries where we have this same configuration. I ...
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1answer
22 views

iptables problem in Evil Twin

I've been looking into the Evil Twin method and I found this steps: Creating AP airmon-ng start wlan0 airbase-ng -e PrivateWIFI -c 9 -v mon0 at0 Configuration ifconfig at0 up ifconfig at0 ...
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1answer
15 views

inotify script stops after first change

Inspired by this superuser answer I have written the following copy_library.sh script, saved in the same folder as a file called library.bib: #!/bin/sh while inotifywait -e close_write library.bib; ...
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1answer
83 views

Terminal error messages are not in English [duplicate]

I have Ubuntu 15.04 installed on my machine. Currently terminal error messages are not in English (actually they are in Russian). For example, $ mmmm mmmm: команда не найдена I want to see $ ...
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Why would I choose mkcramfs over mkfs.cramfs, or is there even a difference?

From what I've seen it looks to me like mkcramfs from cramfsprogs is thought to become a successor of mkfs.cramfs from util-linux — is that correct? If that's true, why is that so? What exactly is ...
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21 views

Anonymous root access via ftp

I have inherited a part of a project where the rootfs of a Linux system must be accessible over anonymous ftp with read/write access. I have been trying to set this up using vsftpd on Ubuntu server ...
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12 views

netstat -o timer value “probe”

A bit of background on the scenario. I have a distributed application running on RH6.5 that uses JMS (OpenMQ 4.5.2) to send messages between hosts. One host (Host A) receives information from network ...
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1answer
25 views

Partition size from “df -h ” vs “fdsisk -l”

Partition size using "df-h" Filesystem Size Used Avail Use% Mounted on /dev/sda5 19G 17G 516M 98% / none 4.0K 0 4.0K 0% /sys/fs/cgroup udev ...
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10 views

I can't press right click and icons disappeared on RHEL6

I'm only left with the desktop. When I right click, I get no response. Another problem is that there's no menus or icons. When I try to open Nautilus it doesn't start. When I tried to open it from ...
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3answers
62 views

Can I change my PATH dynamically based on my cwd?

I would like to change my $PATH environment variable dependent on my current working directory. Say I'm in /foo/bar/baz and I have the directories /foo/node_modules/.bin and ...
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1answer
18 views

Debugging ExtFS on OSX - works for 3 days then nothing?

I installed the trial of ExtFS 9.7.109 on OS X 10.10.3. It worked great for the first 3 days. But now my ext4 drives no longer show up. Last thing that worked was copying data from an ext4 drive. ...
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1answer
18 views

Connect a external SSH Server from blocked SSH Tunnel network

I need connect to SSH Server in my work office from a academic network, but in all tries occurred a "Timeout error". In my home and in other places the access work fine to connect (SSH Server working ...
2
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0answers
37 views

Getting 4K@60Hz via ATI R9 290 display-port on Panasonic TC65-AX-800U

Hi I have an AMD R9 290 card, under linux, with the proprietary Catalyst 14.50.2 driver; the AMD Card only Has HDMI-1.x which can't do 4K@60Hz, but it does have display port which is capable of ...
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1answer
35 views

Raw reading USB mass storage or SCSI

Wife's USB HDD has a slight issue where a folder refuses to open (NTFS filesystem). I have been able to image the drive with Linux but for one sector (sectors are 4096 bytes). Reading that sector ...
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6 views

IW and IWCONFIG reveals different wireless interface results

I am using VMWare Fusion with Ubuntu 14.04 as guest system upon the OSX host system. The question is that when I plugged in the USB Wifi adapter (TP Link WN725N in my case), The commands iwconfig, ...
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1answer
23 views

any one have a workaround in Linux for firefox's bogus “video can't be played because the file is corrupt” message

Systems are Xubuntu 14.04.2, 64-bit running (currently) Firefox 37.0.2 (provided by Canonical). attempts with firefox to open training videos by clicking on the website-provided links at (e.g.) ...
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12 views

Bluedevil wizard starts on KDE startup

Bluedevil wizard (3 copies) starts on each boot after KDE start. There are no bluetooth devices near PC or smth. Why and how to fix?
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2answers
42 views

Install Google Earth on Linux Fedora (rpm)

I'm trying to install Google Earth: [alexus@wcmisdlin02 Desktop]$ cat /etc/redhat-release CentOS Linux release 7.1.1503 (Core) [alexus@wcmisdlin02 Desktop]$ uname -a Linux ...
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2answers
24 views

Where to set advanced settings for serial port on linux

I use a special USB to serial adapter to get data from legacy hardware. Under Windows i have to set some advanced settings in order to start sending data in a way the devices can "understand" and ...
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0answers
8 views

Generate octave.info file to include documentation on additional installed packages

I use vim to write GNU Octave scripts and I have included the line autocmd FileType octave setlocal keywordprg=info\ octave\ --vi-keys\ --index-search in my .vimrc file which enables me to use Info ...
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3answers
37 views

Understanting wifi routing and gateway

EDIT : I've found a solution as explain here So I'm completely lost. I'm a real beginner about linux networking. I have 3 interfaces eth0, wlan0, wlan1 (2 wifi usb dongle) on my raspberrypi. My ...
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1answer
28 views

use curl to download and yum to install (NTLM proxy issues)

I need to use a wi-fi under a corporate environment with my Fedora 21. It uses NTLM. With curl i've been able to reach sites (yahoo) setting the proxy, the type of proxy, the user and the password, ...
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1answer
114 views

PHP 5.3.10 on Debian Jessie

By default in Debian Jessie, I get PHP 5.6 installed by using apt-get install php5 . The problem is that the project that I'm working on has severely deprecated functions to the point that the ...