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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How do I properly SSH into a server behind a NAT while maintaining the tightest possible security?

I have a VPC in Amazon AWS. There's a NAT Server running in a Public Subnet that connects to an Internet Gateway. I have a bunch of servers running in various private subnets within the VPC. I'd like ...
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36 views

Linux bash - Add alias from script without source(-ing) the script

Is it possible to write a script like #!/bin/bash alias foo="bar -options" and get the alias added to the running shell without source(-ing) the script source myscript will work, but just ...
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1answer
25 views

OpenSSH server refuses to accept key authentication unless logged into server locally

My server is running Ubuntu-Server and ahs OpenSSH-Server installed on it. I set up the /etc/ssh/sshd_config file to accept and require rsa keys, it looks for keys in the 'AuthorizedKeys ...
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0answers
11 views

Boot order changed after pulling harddrive out to install Win 10 Tech Preview to different harddrive

Ok, so to install the Windows tech preview to my other harddrive I decided to pull my current one out, install Win TP to a spare 250 gig, and after it finished I put my original harddrive back in. ...
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0answers
6 views

Equivalent of apt urgency flag in yum changelog?

I develop a cross distribution package manager, and i want to get the urgency of all updates on APT et YUM based distributions. With APT, it's simple, I have to fetch the changelog with apt-get ...
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1answer
32 views

Sharing files between ubuntu and mac using parallel desktop

I'm using parallel desktop on OS X 10.9.4 with an ubuntu 14.04 installed on. I want to share folders between these two operating system but I can not find any method doing it. I tried to change the ...
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0answers
10 views

Fix an ESXi configuration issue with the Rescue System

I have described the context of the problem in great detail, however if you just want to get to the point, read only the last paragraph. I was experimenting with ESXi on a box rented from Kimsufi. ...
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0answers
16 views

How to get out of a chrooted environment in ArchLinux

I'm attempting to install ArchLinux via SSH. At the moment I'm not at the machine, but I do have root access to it. I have SSH setup in the Chroot environment (arch-chroot). Is there anyway, while ...
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2answers
182 views

Why is “source <(cmd)” working but not “$(cmd)”

I want to have a script to call with params which adds some aliases to my current shell. The aliases have to be builded in respect to the calling parameters and the current directory from where I ...
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0answers
5 views

Core dumps from Apache with MPM ITK

I am facing a (so far) irreproduceable segmentation fault in Apache/MPM-ITK/Mod-php, so I am trying to get Apache to produce a core dump when that happens. The problem is, that I do get core dumps, ...
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1answer
12 views

Unattended upgrade returned: False

I'm getting this email from several computers on our network. Any idea what I need to do? Unattended upgrade returned: False Packages that attempted to upgrade: firefox firefox-locale-en ...
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0answers
31 views

Ethernet always shows proxy server not found

I have installed Ubuntu 13.04. I can connect with wifi but In the case of ethernet I am able to fill up IP Address, subnet mask and gateway but the result is always PROXY SERVER NOT FOUND Here is ...
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0answers
8 views

Unable to compile GTK+ application

I'm trying to compile a simple GTK app for testing on a Trisquel 7 machine. The packages are derived from Ubuntu 14.04 LTS. I have libgtk2.0-dev installed, but when I try to compile, this is the ...
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0answers
23 views

Linux: locking root filesystem to read-only

I have an industrial computer (read: no keyboard/mouse/monitor except during maintenance) which will control some machinery. The operating system will be Linux (I would prefer OpenSuSE, but it's not a ...
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0answers
17 views

How to download bulk files from url with login protection(cookie)?

I need to download files in bulk each 0-2.5 MB from an Url to my server(Linux CentOS/can be any other too). The url is(only one parameter is changing): ...
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0answers
38 views

Linux on Microsoft Surface Pro 3

I read this and I was wondering now that we have surface 3, can we now have linux on it? (I prefer ubuntu) are drives compatible for this, anyone tried this?
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3answers
70 views

How to assign different static IP addresses to the same machine depending on its OS?

I was wondering if it is possible, e.g. to assign/reserve one static IP to a computer when it's running windows and assign a second static IP to the same computer/MAC address when it's running Linux? ...
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2answers
27 views

Create symlinks from files in new folder, but not folders

I would like to create symlinks from all files and files in the sub-folders in a new folder. So, it makes a new folder, and in this new folder it mirrors the actual folder structure from the source ...
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1answer
29 views

Linux find files in subdirectories by extension (.txz) then move them to specified directory using regular expressions

I have mirrored a directory from a server with a large number of sub directories, each of which contain a .txz package and the usual .txt and descriptor files. What I would like to do is the ...
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1answer
32 views

Why is the mounting of an NTFS partition in Linux not functioning properly?

This question is related to this one; call it Part 2. @allquixotic provided advice on that original question, which solved the symptoms, but the result exposed an apparent underlying problem, which is ...
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0answers
19 views

What triggers dropbox on fedora to upload files?

I am writing a computer simulation on a Fedora system, but wants to postprocess the data using MATLAB on a windows installation. My method for transferring files is Dropbox since the two computers are ...
1
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1answer
32 views

How to figure out a download or upload is in process on a linux system

I've written some anomaly detection program that recognize abnormal traffic on system, but it sometimes detect normal download or upload traffic as abnormal. Is there any way to check if a download or ...
1
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1answer
39 views

Why is a mounted NTFS partition not showing up in the Linux file manager?

The internal hard disk on my computer has three NTFS Windows partitions (Win 7 main, boot, and recovery), and several Ext4 Linux Partitions (Mint and swap). I'm temporarily doing most of my work on ...
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0answers
28 views

Linux Mint 17 (Cinnamon) doesn't discover the windows workgroup in Nemo?

I can scan the network via arp-scan and find the IP's of all the machines on the network but it doesn't resolve to the file manager. In Windows my machine is also not visible. I am able to connect to ...
2
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0answers
23 views

How to implement an integration for start and end of a call in Vicidial

I've developed most of the application in PHP for the integration (very similar to our Asterisk implementation) and all we need at this point is to run php async.php 12313123.12312 (shell command) ...
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0answers
18 views

Quickly write byte to Bluetooth dongle's serial port when webpage loads

I have a USB Bluetooth dongle mounted (?) as /dev/rfcomm0, and when I navigate to my local IP address from another device on my network in a browser, I want it to write a 't' to the serial port so ...
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0answers
28 views

Kali Linux over WiFi listed as new-host-X on Verizon (fomerly: WiFi only works with an Ethernet cable)

This was the text of my original question. I am keeping it here just in case I end up having this problem again: I installed Kali Linux as a dual boot using these instructions: ...
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0answers
13 views

Change color theme on all terminator windows

I wrote a script a while ago to change the color schemes of all of my terminals (Konsole) in Kubuntu. I can't find the script, but I remember that it involved doing something like. clear | tee ...
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0answers
23 views

Is the confidence about Linux's security against viruses make it even more vulnerable? [on hold]

Every once in a while, a computer user, regardless of whether they're a developer or common user, just feels like watching an episode of a favorite classic tv show real quick and doesn't feel like ...
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4answers
23 views

Access data from a linux partition inside an image without root privileges

I have a whole-drive image file containing a partition table and some partitions. I would like to list and read files from an ext2/ext3 partition inside this file. Using root priveleges, it is ...
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1answer
16 views

Target directory structure for tar different than original directory structure

Is there any way to set a different target directory structure than the orignial directory structure the tar archive was created from without creating it by hand? For example, I have many files in a ...
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0answers
27 views

Is there a 'plugin' or preferences file that I can use to make curl output formatted (i.e. HTML, javascript, JSON blobs, etc)?

When I type curl www.google.com I get an unintelligible mess. Is there a way to output this formatted and in color? I have seen someone do this before and they said they had a 'plugin'. If you don't ...
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0answers
32 views

Get the details of a killed process in Linux

I have seen from the logs/kernel messages that a termination signal has been sent to a process with PID say 1234. Now (few seconds after I see it), ps says that the process is no longer running, (to ...
2
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1answer
24 views

How to tell Dolphin which files to hide?

KDE's file manager Dolphin can hide some files, e.g., files starting with a . Is there a way to configure which files it actually hides? For example, I would like to make it hide all files matching ...
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0answers
14 views

Installing local repo of Cygwin via command line

I am trying to install Cygwin on a windows machine via command line. The Cygwin repo is sitting on a Linux server and is accessible via samba share. I am not sure, but I think this string will do the ...
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0answers
33 views

All change for UEFI/GUID? Windows 7 and Linux new build multi-boot.

Thanks to all for creating such a useful and interesting website. I notice quite a lot of Linux, W7 and UEFI experts on this forum so I'm wondering if I can get a little input and advice ahead of my ...
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1answer
24 views

Problems formatting USB stick to be bootable (with PeToUSB and Linux)

I'm trying to make a USB stick installation disk for Windows XP. I've done this several times before (using this method), but now it's failing, and I don't know why. The only thing that's going wrong ...
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0answers
14 views

Adding more than one image as album art to mp3 via command line

I want to add two images (front and back cover) to my converted mp3s. At this time I convert all my WAVs with lame, then I convert the ID3 tag version from 2.3 to 2.4 via eyeD3 and then I will add two ...
2
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1answer
38 views

OpenWrt: Cannot install package sudo

I have installed the latest OpenWrt Chaos Calmer r42871 on my TP-LINK WR-842ND router. And everything's good except the problem: root@router:~# opkg install sudo Unknown package 'sudo'. ...
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2answers
37 views

Grep output from multiple lines in a limited shell environment

I have been scouring the web for ways to search across multiple lines of output and then print the lines which contain the strings I care about. I am actually running this on a checkpoint firewall, ...
3
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1answer
30 views

Use /sys/class/gpio/ in Python without root permissions

I want to interact with the GPIO pins using the Python module Ablib. And I want to do this without root permissions. How can I achieve this? When I create an ablib.Pin instance the module opens ...
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0answers
10 views

Impossible to keep settings on firefox bookmark manager

My problem refers to sorting criteria, so after sorting as follow: "*BOOKMARK_MANAGER Views -> Sort ->[x es.] Sort by last modified" The choice don't remains after the bookmark manager is closed. I've ...
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1answer
34 views

Why does vim open network connections to a process owned by another user?

I just noticed something really weird... When I run lsof of my vim process I see connections to port 6013 of a process owned by another local user. I wonder where they might come from. I trust the ...
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0answers
18 views

How do I resize software RAID partitions in Gparted Live?

I have a linux-RAID partion that I want to extend into empty space non-destructively. In Gparted it has a lock symbol and right clicking the partion brings up greyed out options. But on the Gparted ...
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0answers
23 views

windows disc read-only after mounting in linux

For accessing my windows (NTFS) partition in linux, I have the following line in fstab # <file system> <mount point> <type> <options> <dump> ...
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2answers
7k views

Is “ps -u” Really a Bad Syntax?

IMHO ps -u shows a very useful output, much better than ps -u $USER: $ ps -u Warning: bad syntax, perhaps a bogus '-'? See /usr/share/doc/procps-3.2.8/FAQ USER PID %CPU %MEM VSZ RSS TTY ...
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Linux socket opening and closing time

I have a setup in which I need to record the time of opening and closing of a socket 192.168.1.1:12000 How can I record the time of opening and closing of this socket?
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1answer
17 views

Application specific routing table in linux

I've two systems A and B with different network provider but connected to the same switch. Suppose IP of A is 0.0.0.10 and IP of B is 1.1.1.10. I can make them connect locally or over internet by ...
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0answers
7 views

Creating a raw printer queue in CUPS (host) and adding them through CUPS (client)

I want to make my RasPi act as a little print and file server in a small home network consisting of three Linux clients. Unfortunately, Brother provides only binary drivers for x86, so I cannot run my ...
0
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1answer
23 views

GRUB2 How to inspect which distros (and where) are installed on partitions?

Old days are gone since it was simple to just view the menu.lst file... :) How could I detect installations on partitions from command line in a fully-loaded system?