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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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
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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
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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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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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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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12 views

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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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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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
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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
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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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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
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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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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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10 views

BTRFS file size vastly larger than apparent 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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19 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
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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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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
16 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
11 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
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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
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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
29 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
20 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
57 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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0answers
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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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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12 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 ...
0
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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
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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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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
23 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
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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
12 views

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
16 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
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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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38 views

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 ...
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3answers
25 views

Mail not sent from web server to mail server [on hold]

I am trying to send mail from the server example.com to support@example.com. The email is being sent from a webform on the website. However, it is all staying local and it says that the user ...
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0answers
22 views

How to mount a public windows 8.1 share in linux

I have a folder shared on a windows 8.1 machine. It is shared with "Everyone" and "Everyone" has "read/write" access. In the security tab of the properties dialog of the folder, again "Everyone" has ...
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Playing opus files under ubuntu

Opus is a new audio codec standard for audio on the web. Features include: Better compression than mp3/ogg/aac. Good for both music and spoken word. Dynamically adjustable bitrate, audio bandwidth, ...
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1answer
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Intel Centrino N-1000 WIFI problems on Linux Ubuntu

I have a laptop with the Intel Centrino N-1000 wireless card running Ubuntu 12.10. The Ethernet card works fine, but the wireless card doesn't. When I click the Networking icon I see that wireless ...
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1answer
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GParted - Testing for problems after shrinking too close to the data

I used gparted to shrink a 1TB volume with about 458GB of data to 470GB. I had Ubuntu installed. Apparently it went well at first. I restarted and Ubuntu had problems logging in Unity. It said there's ...
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Stuck on “Preparing automatic repair” loop windows 10

Just a few hours ago I was installing an update for Windows 10 and then it started turning on and off. I let it do it's thing for a while until I found it odd that it would do it so much. When I ...
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Access Files from a restricted partition

I am attempting to gain read-only access to memory from the Windows partition of my computer. I determined there was no mount point for it (according to sudo mount -t ntfs-3g -o ro /dev/sda4 ...