A family of Unix-like 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 identify GPU memory on ARM Linux

I am developing an appication reserving lots of GPU memory on ARM devices. For some devices (eg. Nvidia Tegra based) some of the memory is reserved in the 'cached' area as it seems. Particulary, the ...
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34 views

CPU temperate stuck and fan at maximum speed

I have a Dell Inspiron 5548 (i7-5500U, 16GB RAM) and I'm running Fedora 24 with kernel 4.5.1. I noticed the internal fan will stay at maximum speed (5500-5600RPM) forever while the CPU temperature ...
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87 views

Kubuntu live cd via PXE on server 2012r2

I am attempting to PXE boot the kubuntu live CD ( prepped to be booted on a usb drive, then files placed on a NFS share with root acces read/write to everyone ) the PXE boot menu component launched ...
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12 views

How to reset keybase deivece key

I am using command line tool keybase on archlinux, and forget my keybase deivce key passphrase. But, my gpg secret key no not saved in keybase, and I have found my paper key. So, how can I do to ...
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22 views

Where can I get Unicast, Multicast, Broadcast and Discard Packets Sent and Received via a particular interface in Unix systems?

I have created several interfaces on my Unix machine for communication to the external world. Now I need to get the count of various packets Sent and Received via each interface. I have already ...
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9 views

Using ab command, 100 concurent process fails in Linux, How to solve this issue for Linux?

What i have done : I have used following ab command : ab -n 1000 -c 100 http://192.168.101.143:8558/num?num=5 Here, I am trying to generate 1000 http request , 100 concurrent process, port ...
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13 views

how many rules iptables or single chain support

I have multiple user (approx 800 users), I am developing IPTABLES firewall for MAC address based filtering. My Question is HOW MANY RULES CAN I ADD IN A SINGLE CHAIN AND HOW MANY RULES CAN HANDLE ...
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7 views

Need to extract info from the source of HTML and put it in an mySQL update string

I need to get callsign, channel number and xmltvid from this HTML source. Here's a link to a larger sample of the file: http://pastebin.com/VuzBRhq6 In this case each TD of the table contains a span ...
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15 views

How do I create a Docker container with a non-default IP address?

I created a docker container with this command: docker run -p x.x.x.x:80:8080 <imageName> bash where x.x.x.x was the IP address of the Docker server running CentOS version 7. I then tried to ...
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6 views

Share drive between Docker and host OS

I have Docker running on Ubuntu 14.04 LTS. How can I have a volume, which can be read/written by the host OS, as well as select Docker containers (I will choose which)?
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23 views

rpmfusion error for installing mplayer

I am trying to install mplayer and geckoplayer (using CentOS 7) for firefox, as I wanted to play videos on 360training and QuickTime isn't available for linux. While trying to install from rpmfusion ...
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14 views

Linux group can't access folder created under windows even if the rights are good

I own a Netgear ReadyNAS 100 series (RN102) for my personnal use . I have a project that I already started : create a custom "FTP Cloud" for my android cell phone, by using Foldersync with many ...
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10 views

How to make logind act different when power line plugged-in or not?

I am using Arch Linux and use logind to handle acpi. There is only one acpi event HandleLidSwitch. When closing the lid I want my laptop to act differently based on the current power source. For ...
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10 views

Shorten DDNS name in /etc/hosts or similar

I have Dyanamic IP, therefore I'm using No-IP with a DDNS name. However it is quite long. The hosts file /etc/hosts uses the format: {ip.add.re.ss} {host-name.here} but, and I have a DDNS ...
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7 views

How to track package version when updating via tarball

I want to check if package is installed in proper version. If version is not proper, I want to download tarball and install/update it. When I check version with rpm -qa | grep {package} command ...
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18 views

Chromium: No microphone devices

I am using chromium on ArchLinux, and I have tested that with ffmpeg the microphone works and I can record a wav file. But when it comes to using online flash recorder, it shows that "Microphone ...
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26 views

isolating traffic between 2 interface on a linux box

I have a Raspberry Pi Linux device with 2 network interfaces - eth0 (subnet 10.10.10.0/24) and wlan0 (subnet 192.168.1.0/24). wlan0 is connected to a wireless router and is isolated from eth0. I have ...
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17 views

ntpdate pool.ntp.org getting lost on slackware

On Slackware 13.1, keep time correct is getting difficult. I've noticed BIOS clock is wrong. So I do ntpdate pool.ntp.org and just after I check time with date. It's correct. I check it again with ...
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40 views

how to send a log file which has owner & group as 'root' using rsyslog

i have a file inside as /var/log/suricata/fast.log , the owner and group of this file is root. I want to send this file to a remote nxlog server. The following is the configuration file placed at ...
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18 views

Any tool to update system fonts automatically?

Is there any tool to check the last available version of installed fonts and try to update them if a new version is available?
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27 views

a “pixelated” picture showing up for some seconds before the actual User Interface loads.

I have been observing that every time I turn on my Linux notebook, I'm seeing a "pixelated" picture showing up for some seconds before the actual User Interface loads. The thing here is that the ...
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9 views

Tool to connect to a file descriptor for I/O

I'm looking for a unix tool which can connect me to a specific file descriptor and do some I/O operations on it, assuming that the user permissions are valid. What could I look to use?
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13 views

How to fix Nemo file explorer as crashes frequently in Linux and asks for root privileges to fix the error?

I have Nemo installed on Centos and Fedora, on Gnome classic and Mate Desktop, crashing every now and then and asking for root privileges to fix the issues found but other explorers work just fine. I ...
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29 views

Windows 10 freezes after having contact with linux

Thread title might be funny but in reality it's a nightmare. I've already read that one which seems to be similar to my problem. OP out there stumbled upon freezing while having two drives connected ...
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17 views

IO blocking on USB 3 installed OS?

I'm working with an HP Stream 13 that has a set storage size of 32GB. I purchased a fast 128GB Samsung USB 3 low profile drive to eliminate the storage issue. Upon installing various Linux distros ...
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25 views

Can we use share volume to share docker container across different host?

What i want to achieve is to share docker container across different machine. since docker will store container data into /var/lib/docker/container i am thinking to have a network volume, and map ...
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8 views

ftpd not visible after reinstallation

What I have done is: install ftpd, configure it, use it, all ok uninstall ftpd, install proftpd uninstall proftpd, install ftpd For now there is no ftpd service: ftpd: unrecognized service and ...
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48 views

Polkit / Systemd interaction

I tried to add the following rule to polkit: polkit.addRule(function(action, subject) { if (action.id == "org.freedesktop.systemd1.manage-units") { polkit.log("action=" + action) ...
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81 views

Unable to SSH to windows machine from a linux machine

I am trying to SSH from a linux machine to a windows machine.I followed below steps to do the same. Installed Win32-OpenSSH on the windows machine and set it to automatic mode. Generate a key pair ...
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53 views

Hard resetting link after SSD firmware upgrade

System: HP Omen 15-5003nl OS: Elementary OS Freya 0.3.2 (and Windows 10) SSD: SanDisk A110 SD6PP4M-256GB-1006 SSD Firmware: A200906 Kernel: 3.19.0-58-generic I recently upgraded my SSD firmware ...
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26 views

fail2ban does not ban IP although there is one failed regex in table

I don't know why fail2ban not adding the bad ip into iptables rules. Here is my setup. /etc/fail2ban/filter.d/http-get-dos.conf [Definition] failregex = ^<HOST> -.*\"(GET|POST).* ignoreregex = ...
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26 views

aws linuxAMI crontab ec2 to s3 backup command not working

I am new to Aws Platform and was trying to get Hands on experience on Command Line... but when i was configuring installed wordpress site...and syncing it to S3 bucket.. and for that my instructor was ...
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16 views

how to load jffs2 image in mpc8309twr

I am trying to load the jffs2 filesystem through uboot in powerpc mpc8309twr board, while uncompressing the kernel image it is showing Wrong Ramdisk Image Format Ramdisk image is corrupt or invalid ...
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21 views

About grep, what's the main difference between using option E(ERE) and P(Perl)

About Grep tool in RHEL, usually I use -E option which is ERE grammar, but sometimes I use -P to use the look-ahead/behind-positive/negative grammar. I know -P is more powerful than -E, but not ...
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Getting “rpm: -–import: unknown option” when tryihng to import public key on Amazon Linux

I’m tryhing to install Google Chrome on Amazon Linux using this site — , and one of the steps is [davea@mydevbox ~]$ sudo rpm -–import linux_signing_key.pub Unfortunately, when I try this, I get ...
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26 views

Why does partition alignment affect hdparm -t /dev/sda

I have a Samsung SSD 840 EVO 120GB in my debian box, which shows disappointing performance beaureve:/home/martin# hdparm -t /dev/sda /dev/sda: Timing buffered disk reads: 242 MB in 3.01 seconds = ...
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18 views

xubuntu: restoring “drive snapshot” image onto removable disk

I have some images created with Drive Snapshot I now want to restore one of these images onto a removable disk, using my xububtu system. The removable disk is a USB device which appears as a SCSI ...
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18 views

How to change the test parameters for aio-stress test in phoronix-test-suite

I am using aio-stress test from phoronix-test-suite for bench-marking my linux server. Currently, the aio-stress uses 2GB[2048KB] test file and 64KB record size for random write and gets the ...
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27 views

Windows 10 access to CentOS

How can a windows 10 user access the CentOs Linux 7.1.1503 over samba server? Windows 7 and 8 users are able to access but Windows 10 user.
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5 views

about bcache cache_lookup(): Can the last bkey in bset be hit?

I want to know whether the seach_key can hit the last bkey in the bset. I think that it can't be hit. void bch_btree_iter_push(struct btree_iter *iter, struct bkey *k, struct bkey ...
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44 views

WiFi card not detected by Windows first time after restarting from Ubuntu in dual-boot

The following is my setup: Asus K551LN i5 laptop (dual boot), Windows 10 Home (fast startup disabled), Ubuntu 15.10 amd64 (dual boot) This laptop has the MediaTek MT7630E wifi card for which the ...
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41 views

Cannot ping my own router on any Linux distro (ethernet)

I've tried multiple distros, all failed. I always run Windows 10 (ethernet and wifi work fine) but I dual boot and changed my distro from Arch (~6 months ago) to Fedora (~3 months), and Fedora used ...
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43 views

WebDAV backup software not working with my ownCloud server, yet working fine with others

I'm trying to use Duplicati to back up a computer to my ownCloud server over WebDAV, but it fails every time with one of the following two errors (depending on OS) and the accompanying log entry. ...
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24 views

Native Instruments Maschine Mikro and Linux

After searching a solution wherever I could, I'm resigned to ask it myself. I'm the owner of a Maschine Mikro MKII from Native Instruments and, some months ago, I switched to Ubuntu Gnome (under 15.10 ...
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28 views

How to extend OS X system partition?

I have this situation. Hardware Lenovo T420. Drive: /dev/disk0 (internal, physical): 0: GUID_partition_scheme *480.1 GB disk0 1: EFI EFI ...
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63 views

How boot custom ISO within Rescue Mode (or not) in a OVH VPS

I need to boot a custom ISO in OVH VPS, but i don't know how, the iso I need to boot is from FreePBX. Right now the VPS is in Rescue Mode. So, how to boot the FreePBX ISO Image in my OVH VPS if ...
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21 views

Startup script unexpected results

I'm experimenting with a small script to setup my webserver on Vultr. This is a "Startup script" that is used by Vultr on the background after deploying a new machine for me. If I run manually with ...
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9 views

my graphical debian is deleted after trying upgrade GCC

I am not an experienced debian user, what I did is following this post to install Nodejs 4.X in my debian wheezy : http://alex-taran.blogspot.com/2015/10/nodejs-4xx-on-debian-7-wheezy.html after ...
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55 views

Plex Media Server won't find media files

PMS on Arch won't find my media files. I can't think about anything else to say, but that I'm running PMS 0.9.16.4.1911-1 on Arch 4.4.5-1-ARCH. One of my libraries is set to /srv/plex/movies. The ...
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Error with execute zypper install any-program

I'm using OpenSuse Leap with Gnome interface When I try execute sudo zypper install wine yesterday, the command return for me fallowing messages: sudo zypper install wine root's password: Refreshing ...