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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Managing users while sharing home directories across servers

I have two ubuntu servers that share home directories. The /home directory from server1 is mounted as the /home directory on server2. I have a problem when trying to give a new person access to both ...
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Reinstall Lenovo x86 tablet with “mom” friendly operating system [on hold]

We've got a Lenovo Miix 2 8" x86 tablet with Windows 8.1 but it's really not comfortable for my mom. I would like to reinstall the tablet with Ubuntu Touch or any other very-very handy operating ...
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1answer
10 views

SSH Server Not Responding To Connection Request

I'm attempting to set up an SSH server on my local machine using OpenSSH. When I try to SSH from a remote host into my local SSH server, the SSH server doesn't respond and the request times out. I'm ...
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LUKS encrypted volume lost upon reboot

Using this guide I encrypted a volume and am able to open and mount it manually. The problem comes after rebooting. On startup the system does not open the encrypted volume, nor is the decrypted ...
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Nohup doesn't work when executing script from Jenkins

I have bash script which executes following nohup ws --port 8080 & when executing that script directly on remote server and closing connection - process still exists. But when i am using ...
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8 views

at sends a BCC to an address that doesn't exist

I'm running some pretty long tasks at work and I want to be warned when they finish, wherever I am, so I use at -m with sSMTP to get a notification on my Gmail address. It's my first time playing ...
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1answer
32 views

Cannot delete file on Linux

After backuping with 'rsync --archive --update' my home directory from ext4 to btrfs, rsync reports errors like this: rsync: ...
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3answers
46 views

Why do I get permission denied even as root?

There is a directory 'dir1' owned by root:root. Stat shows: Access: (0750/drwxr-x---) Uid: ( 0/ root) Gid: ( 0/ root) and when I log in as root my id shows: uid=0(root) gid=0(root) ...
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1answer
8 views

Gateway Server Jump Bastion Host Local Setup

I want to ssh to a remote private host using an intermediate (bastion, jump, gateway) server. This command works fine: ssh gateway ssh private With this ~/.ssh/config setup: Host gateway User ...
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13 views

Special characters are not displayed in terminal and vim

I'm using redhat release 5.6 (Tikanga). Recently I installed a patched font that support some special characters. I'll describe what I did. Installed the font in the ~/.fonts directory Run fc-cache ...
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8 views

Configure PHP settings on per vhost basis

I have an Apache server that has two websites. I want the two sites to have a bit different PHP configurations. The setup: The two vhosts share the configuration php.ini file. The same php.ini is ...
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1answer
28 views

Setting Write Permissions for /var/www on an Ubuntu Desktop local web server

I've been struggling like hell for 3 days now, can't figure what I did wrong... EDIT 3: I think my question is more specific than I thought, so I created a new thread here: ...
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How to tell if razor is running?

I have a mailserver which is using amavis to do the spam testing (through spamassassin). Now I wanted to use razor and pyzor as well. I installed them and did the following: # su - amavis -s ...
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1answer
9 views

Changing the name of the network interfaces in Fedora 21

I am a software tester for an ethernet switch and I am sometimes working at home. On the computer I am using at work the two network interfaces are called eth0 and eth1. On my private laptop they are ...
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0answers
9 views

How to fix Kali after power-loss during installation

I am trying to learn Kali-Linux and wanted to enable VPN. The menu was grayed-out, so I googled for a solution. blackmoreops.com told me to run aptitude -r install network-manager-openvpn-gnome ...
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2answers
39 views

What is '**&**' symbol at the the end in the command for?

What is '&' symbol at the the end in the command for? nohup /server1/scripts/xyz.sh $1 2> nohup.out&
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1answer
19 views

Windows 7 installation on Ubuntu 14.04 LTS

I have installed Ubuntu 14.04 on my Laptop and assigned whole HDD space to ubuntu. Now i want to reinstall Windows 7 OS back on my PC and want to remove Ubuntu completely. I have tried to make ...
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10 views

Partitions going offline and coming back online

We have Linux server that has 5 LVM partitions. In that two partitions are going offline and coming back online again and again. It is a critical server. Please help, how to resolve the issue.
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1answer
17 views

SSH very slow log in after changing sshd_config, even on LAN

I am trying to get my home server to be ssh-able from the internet. Initially (before touching any config files, just doing apt-get install openssh-server i was able to connect to in while on my ...
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0answers
24 views

Why do unix-oriented users sometimes prefer Macs? [on hold]

For the last few years much of my "for fun" development research has regarded Vim and Git. It seems more-times-than-not a "guru" in the field is using a Mac but is extremely proficient (and using ...
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13 views

Windows Server Interoperability and integration capabilities across heterogeneous environments as Linux and UNIX

our teacher told us to do a research about : Windows Server Interoperability and integration capabilities across heterogeneous environments as Linux and UNIX. So we have to cover : Network Services ...
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0answers
5 views

How can I recover data after luksFormat?

How can I recover data after luksFormat? It was late one night when I decided to try gnome-shell 3.16 without messing up my Ubuntu box. So, I downloaded an Antergos image and booted it. I was maybe ...
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BTRFS size on disk 200x larger than actual size

Why is BTRFS so grossly misquoting the size of small files on my filesystem? [pi@rpi scipy]% cat __init__.py | wc -c # literal byte count 4729 [pi@rpi scipy]% du --apparent-size -h ...
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0answers
20 views

Troubleshooting SSH across networks when ICMP is not enabled

I have 5 Debian Linux servers at my main work, and a few at some of our off-site locations, and one personal one at home. I can SSH with PuTTY from Work to any of the 5 in the same building, and some ...
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1answer
14 views

CentOs 6, rsync/scp of big file stop at 40% (2.4G)

I'm trying to download from the remote server to local laptop a big file (~5G), but the download stops at 40% of the size (2.4G). I'm using this rsync command: rsync --bwlimit=1200 -rh --progress ...
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0answers
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Wireless not working in Kali 1.1.0 on Alienware 15

I'm new to this and i created a usb to run kali live on my Alienware 15. Once I get in, the ethernet is working fine but if I use the iwconfig command, it says "no wireless extensions" Can someone ...
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1answer
18 views

pppd, local and remote IP address are identical, no internet access

I am using a cell modem connected to an embedded linux platform and I'm setting up a data connection over the cell modem. Note that I had this working perfectly fine but I recently created a new ...
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2answers
13 views

Share the whole home directory between host and guest with Virtual Box

For some reasons, the place I work in is stuck with Ubuntu 12.04. As I need a lot of recent software, I wanted to use a VM with Ubuntu 14.04. I successfully setup everything with virtual box 4.3 (the ...
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1answer
19 views

Difference in folder size between properties and du -s

I run RHEL 6.6. When look at my home folder and run du -sh . it shows 7.2G whereas when I open it via the gui it shows only 6.3GB. I did reboot the machine just to be sure that no more file handles ...
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2answers
26 views

Can't write partition Table

I own an Asus UX31A Prime - 8GB Ram and SSD 256GB - SanDisk. It started about two weeks ago after hibernation (Windows). The problem is that is stocks on boot/resume. I search around it by trying to ...
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2answers
31 views

NTP doesnt sync my time

Im getting problems to sync my local time with the NTP Server. this is the output when u do a NTP Query. remote refid st t when poll reach delay offset jitter ...
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1answer
21 views

Wireless at 200 dBm?

So my desktop computer comes with a built-in wireless adapter part of the motherboard and now I installed an Alpha wi-fi adapter to play around with. The built in wifi on wlan0 says it's running at ...
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2answers
59 views

Copy linux directory into another one - delete contents

BIG EDIT: I currently have a directory with folders and files inside: -css --addons ---myaddon ----addon -----firsfile.xml -----secondfile.xml ----cfg -----anotherfile.cfg -----lastcfg.cfg ...
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23 views

Control synergy programmatically

I'm trying to toggle switchInDirection() from a window manager (dwm, written in c). As there seems to be no way to control synergy actions from the command line, I tried to fire appropriate key ...
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0answers
23 views

Cant receive mail from gmail (2)

I've noticed mails being sent from my gmail account to a mailbox on a centos 7 server are not arriving their destination, but no bounce message returned as well. This is what I've found in maillog: ...
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1answer
15 views

LXDE - bring window to the front

How can I programmatically bring a window on top of the others? I'm using a full screen app and I need to bring a second window temporary on the front.
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13 views

emacs can't create new files (linux)

In bash, I can usually create a new file and open it using $ emacsclient -n -c test123 (assuming an emacs process is already running) However, after the most recent Arch-Linux upgrade it doesn't ...
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1answer
20 views

dd writing on USB flash drive causes massive reads

I am currently restoring a usb stick with a dd image, I have previously created. However is noticed very poor write speed around ~7 MB/s although the stick is usually much faster. After looking ...
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2answers
26 views

Linux is it possible to run script as file owner?

I am sorry that I don't know this is the correct place or not. I am in a hurry, racing with the time. I have a file which has following attributes in a Linux machine. (kernel 2.6.26) -rwxrwxrwx 1 ...
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12 views

Server monitoring tips [on hold]

We have a service that running on linux server and it uses services such as rabbitmq, redis etc. Is there any tips and tricks or check list about monitoring linux servers, monitoring server load, ...
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0answers
25 views

OpenWRT and Not Working WI-FI driver for MT7620

I have platform (evaluation board) with MT7620a. In this platform I must install OpenWWRT. After I succes install distribution I whant to add ,launch wi-fi module but something is wrong. I using to ...
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0answers
16 views

See a USB storage device in Windows Disk Management, even if it contains non-Windows partitions

When I insert a USB-stick or a SD card containing only Linux partitions, Windows doesn't see these partitions, and doesn't assign a letter (D:, E:, ...) to them. This is normal, I don't want Windows ...
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0answers
23 views

Why does the installation of a 32-bit package remove 64-bit packages?

It's not clear to me why the installation of a 32-bit package would necessitate the removal of a 64-bit package. For example, if I try to install the 32-bit development package of libcurl with: sudo ...
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0answers
10 views

“recompress” a 7z archive inline

I have a rather large (~500GB) 7-zip archive. I originally made it when I had more space available, and did so at rather fast, low-compression settings. Now things are tight, and I'd like to try and ...
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0answers
6 views

Routing application traffic through interface, not receiving replying trafic

I'm trying to set up a Plex Media Server on a Arch server. However most of the time the server is connect to a VPN and I want the Plex traffic to be routed outside of the VPN interface, tun0 and ...
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0answers
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SSH agent forwarding is not working

My SSH agent forwarding is not working. The answer from this question is quite old and the answer is conflicting with the comments. Can we have an updated answer please? Basically I can SSH from ...
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0answers
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What are all these rcuos processes running on my server?

I just started my first home server running Ubuntu 14.04.2 Server Edition. I installed OpenSSH and that's it; I haven't even opened the port yet to make it accessible to the outside world. I ran top ...
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0answers
17 views

Set PWM on AMD GPU on Ubuntu

I used Windows for years and I haven't eye strain while using LCD. Now, I started using Ubuntu and after 10 minutes I have eye strain. So I tried to change ClearType, but it didn't help. I found ...
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0answers
8 views

How do I run a patched linux kernel on Arch, using LVM on LUKS

I'm running LVM on LUKS on a Dell XPS 13 (2015 version). I'd like to run the patched linux-xps13-alt kernel which fixes some issues with this system. I have built & installed the linux-xps13-alt ...
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how to combine two videos in one, odd frame video 1, even frame video 2…on Linux

I have two videos of same length but different content, I want video one to be on even frames and video two to be on odd frames on the same video. Frame sequence: video1 frame 1 video2 frame 2 ...