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 to debug SSH port forwarding?

The problem I encountered here is weird. There are two ubuntu linux machines, two identical HTTP servers run on them. One is ok on port forwarding, the other gets ERR_EMPTY_RESPONSE. I've checked ufw ...
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Operating Systems: Mac vs. Windows vs. Linux [on hold]

I want to know everything there is to know from the ground up between Mac Linux and Windows. How Mac handles programs vs. Windows?Windows vs. Linux ? What is the difference in what happens when each ...
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How to modify a Fedora Live installation media default configuration?

I have to install fedora on 20+ computers and they all have to start off with some extra packages and configurations that don't come by default on the vanilla installation media (like backgrounds, the ...
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[ERROR]Cannot access secondary GPU…Failed to initialize the NVIDIA kernel module

I've installed Bumblebee with Ryan McQuen's crazybee.sh script, described here, and I'm actually able to startx successfully now (because Bumblebee uses the on-board Intel graphics by default), but ...
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Path `/boot/grub' is not readable by GRUB on boot. Installation is impossible. Aborting

Whenever I try updating grub, I get this error: # grub-install /dev/sda Path `/boot/grub' is not readable by GRUB on boot. Installation is impossible. Aborting. and # grub-mkconfig -o ...
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1answer
11 views

Postfix with Dovecot: local and virtual users

I just finished setting up a Postfix SMTP and Dovecot IMAP/POP3 server. It works perfectly fine for virtual users both sending and receiving, but I need to do the following: Besides virtual users ...
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12 views

If I install a Linux VM, will I be able to work with ext filesystems from my Mac?

I'm working from a Mac and need to edit a few lines on a Linux partition. (I need to enable SSH on Raspbian for a Raspberry Pi, but I need to do so effectively headless – I don't have any peripherals ...
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3answers
677 views

How does Linux know that the new password is similar to the previous one?

Few times I tried to change a user password on various Linux machines and when the new password was similar to the old one the OS complained that they are too similar. I always wondered how does the ...
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Linux Ubuntu MATE 14.04.1 Connection Issues

I recently dual-booted Ubuntu MATE (14.04.1) alongside regular Ubuntu (14.04.1). Regular Ubuntu was able to connect to the Internet. Ubuntu MATE is having issues. It seems that the Wi-Fi is not on, at ...
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6 views

Update APR to 1.3.0 version minimum

build@subversion:/usr/src/subversion-1.8.11/serf-1.2.1> sudo zypper se apr Restoring system sources... Parsing metadata for SUSE Linux Enterprise Server 10 SP4... S | Catalog ...
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2answers
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Why doesn't this Linux symlink work?

I'm trying to create a symbolic link for the file logs inside home/dir1/ to the file netlogs inside home/dir3/. The link is created but when I try to look at the contents of netlogs I got this error ...
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How to setup a cheap linux router/proxy to log all URLs requested

I have a bunch of kids/devices connecting to the wireless router in my house at any given time. I know that there are many software/hardware solutions designed to filter out harmful content but I ...
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How to install apr? [on hold]

I encountered with problem. I found the same problem as mine here: https://clck.ru/9PU7a But I can not find a good example to install apr on my machine.
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6 views

Wifi Adapter/Type Changer using Linux

Is there a way to create a new WiFi network by connecting to an existing WiFi using Linux? Or maybe a less secured Wifi from a more secured wifi? Could you use it as WEP?
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After botting Opensuse goes console not GUI?

I am new to opensuse. I have installed opensuse 13.2 gnome I tried to install the nvidia drivers. After installing the drivers, when I restart the system it goes to console instead of GUI. So I ...
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Xorg/Xrandr Multiple Monitor (different resolution) - Position not set correctly

I'm running fedora on virtualbox (xmonad). I have the following in /usr/share/X11/xorg.conf.d/10-monitor.conf Section "Monitor" Identifier "VBOX0" Modeline "1920x1080_60.00" 172.80 1920 ...
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1answer
16 views

Linux to linux mount

Trying to mount a samba shared directory of a linux(SUSE) server to another linux(SUSE) server on the same network. My scenarion is like below.. on server-1 samba is configure like below and i ...
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1answer
20 views

Connecting with SMBCLIENT to Windows 7 produces error: “protocol negotiation failed: ERRDOS:ERRnomem”

We've got a home network that has a mix of different operating systems, including two Windows 7 Ultimate PCs, a couple of Android phones, a MacBook Pro and two Linux PCs. My housemates own all but the ...
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4 views

NTFS-3G unmounts USB drive as soon as it is mounted

I have created an udev rule to automount a USB hard-disk when I plug it in, but the drive doesn't appear as mounted. In /var/log/messages, I can see Dec 27 09:11:02 smug ntfs-3g[6043]: Version ...
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5 views

eCryptfs - Cannot decrypt filenames

I have encrypted data on an external HD mounted on /home/username/.Data. I am trying to decrypt it to /home/username/Data. Although I can successfully read the files contents, I cannot manage to ...
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0answers
10 views

How to set up a hotspot with socks5 proxy

I have a laptop with linux installed on it. The laptop has two network interfaces: eth0 and wlan0. Normally I surf the Internet through eth0, and I've successfully set up a hotspot in linux for my ...
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23 views

How to connect a local network to IPv6 site / net?

I want to connect my home network (IPv4 only conection to internet) to my server (IPv4/IPv6), what is the best way to do this? Current setup: Home network ("HOMENETWORK") with Linux (Ubuntu 14.04) ...
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1answer
15 views

Is there a way to detect malicious code in php files? [on hold]

On my server I often can see PHP files infected with some malicious code, and I'm wondering if there's some way that I can detect it automatically. I have installed ClamAV on CentOS but when I scan ...
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14 views

How to add a compiled ntpd in services on linux?

I compiled and installed ntp-4.2.8 using this link and created a rpm by running checkinstall on RHEL 6.5. I used the command ntpd -l logs to manually start ntpd. After starting I am able to verify ...
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1answer
20 views

Getting started with serial port (COM port) [on hold]

I'm beginner in hardware building and curious about using my parallel port. Could someone suggest me how to start work with it? What cables I have to buy? How get simple I/O using COM port? How ...
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1answer
13 views

Which program provides “lpquota” command?

At many universities, you can buy a printing contingent which allows you to print out a certain amount of pages. At the Linux terminals, students can check their current printing contingent by ...
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1answer
49 views

SSH error ssh_exchange_identification: read: Connection reset by peer

I am trying to access ssh to a server but got "ssh_exchange_identification: read: Connection reset by peer". The same client works well when I move the computer to home but show the error when the ...
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16 views

Newest build of Chromium OS won't boot

I haven't found anything useful related to this question but I bet many people having fun with the Chromium OS get this problem. Problem: All builds from chromium.arnoldthebat.co.uk don't boot ...
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1answer
12 views

SNORT -Unknown command line checksum option: ascii

snort -vde -l /var/log/snort -k ascii when i tried this command it gives me the error Unknown command line checksum option: ascii. I don't know why,coz i hve installed snort successfully, and also ...
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0answers
17 views

VNC over Reverse SSH Tunnel or VPN?

Okay so I'm fairly new to SSH Tunneling, VPN, VNC, all that good stuff. *NOOB ALERT* I recently bought a Raspberry Pi and I loaded the Raspberry Pi release of Kali Linux on it. I have tried all day ...
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Is it possible to configure Linux OpenMPI v1.6.5 to use multiple working directories on a single node?

I am running some quantum chemical calculations on a refurbished PowerEdge rack server, with dual quad-core Xeons, 16GB RAM, and a single 500GB SATA HDD. OS is vanilla Debian Wheezy. For one of the ...
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1answer
32 views

Configure a linux VM to use host computers internet connection

I am using a software which must be configured as a "bridged network" on a Virtual Box VM. I have already tried with NAT and other configurations but none of them work. the bridged network is the only ...
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1answer
23 views

Shared folder Virtualbox Ubuntu / Lubuntu

I can see a lot of posts on this but they either don't cover what I'm trying, the OS's that I'm using or (most likely) I'm not understanding them. I'm using Ubuntu 14, and I have VirtualBox running ...
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1answer
79 views

how to disable tcp congestion control [on hold]

here i have a private network, i know its bandwidth and it will never congestion, but will lost packet sometimes. its bandwidth is just same as network interface, both are 100Mbps. it means i could ...
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who/Which process is creating a .php file in a given folder?

I am trying to find out, which process is creating a specific file in a given folder. For example, I am trying to find out, Which process creates a .php file in a folder called "uploads". I can do ...
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1answer
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Executable lauches if called directly from terminal, but does not work when called from shell script

I have downloaded some software (called samtools) and it is stored in a folder on my desktop. Then I've added the path to the executable into the PATH environment variable. In other words my ...
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1answer
16 views

Regex for cron pattern not working

Tried to create a (simplified) regex for cron patterns for myself and came up with the following one: ^(((\d+(,\d+)*)|(\d+-\d+)|(\*(\/\d+)?))(\s+(\d+(,\d+)*)|(\d+-\d+)|(\*(\/\d+)?)){4})$ This is ...
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1answer
7 views

Grub2 not bootable

I replaced the internal HDD of my Lenovo Z570 by an SSD drive. Then I put the HDD in an external case and tried to boot it over usb; but the BIOS of my PC does not recognize it as bootable and just ...
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0answers
37 views

Why does windows have javaw and java?

Can someone explain to me why windows has a javaw and java executable while unix based systems only hava java. I'm assuming it has to do with the gui and cmd headers in windows but I don't actually ...
2
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1answer
19 views

Linux find command with multiple command -exec using chown and chmod

The following command runs but the two -exec commands don't run - so the file gets moved but the permissions and file owner doesn't change. find ~/Downloads/ -name "2014-12-24*" -exec sudo mv {} ...
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1answer
22 views

How do I recursively download a directory using smbclient?

When I try to fetch a directory with get "Path To\Directory\", I get the following error: NT_STATUS_FILE_IS_A_DIRECTORY opening remote file Path To\Directory How do I recursively download this ...
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2answers
33 views

Transfer file from server to home computer

I have a text file on the server(Linux) at work and now I am at home. I am a putty user. To connect to the server from home I have to connect to another server and then by SSH to the main server ...
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0answers
16 views

Recommended tool for read/write checking (hard/usb) drive (if thumb drive is bad) [on hold]

I'm looking for a tool that does read/write testing on a drive in order to find out if the data was written correctly, similar to what memtest does. For example, some usb thumb drives sold are ...
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3answers
280 views

How to tell, using a live Linux USB, if a computer is damaged?

Story: I was driving to my Mother's for xmas with a brand new (albeit cheap; it's plenty for her) computer. Unfortunately, I got into an accident, and the computer flew from my back seat into my front ...
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2answers
27 views

How to know if I have RAID configuration on my machine?

I was wondering if there is any Linux command I can use to check whether I have RAID setup on my machine? I know about cat /proc/mdstat but didn't show me anything meaningful. I just want to know if ...
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3answers
343 views

Bash- How to make a Linux script file human unreadable? [on hold]

I have seen many Linux scripts that are executable but cannot be read as they are in binary format. My question is how I can make my script not readable/binary format?
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2answers
38 views

Why do applications launch faster when running entirely from a RAM disk? [on hold]

What about running from a RAM disk makes applications launch faster when running entirely from a RAM disk?
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1answer
32 views

USB stick boot up won't work. Again [on hold]

I am planning to wipe my laptop and I am using a Ubuntu Live USB. However, my USB won't show in my boot list. Not even in BIOS setup. I need a way to fix it. Should I continue this way or use a ...
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8 views

time.conf - datetime range details

I'm writing a time.conf GUI editor for my personal use and I need to understand how does the datetime range work, so I would be grateful if someone could explain to me: What does MoWk mean? Such ...
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0answers
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Can't automount USB stick with Fedora 21+systemd-udev, could with Gentoo on same machine

In Gentoo I had created a small script that was called by udev and allowed me to mount an USB device, identified by its serial number, to any mount point I chose. Basically, ...