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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Perl IRC Bot running on the machine

I had someone hacked into my linux machine and was running a perl code which seems to be some kind of a bot. The next day I got a call from ISP saying that there are large number of spam mails ...
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How to read raw serial data on linux?

I'm working a project for school that requires us to send data from our embedded system on a FPGA back to our host computer over serial. I have a UART instantiated in my FPGA and I have done all of ...
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rsnapshot exclude_file not working for local backup?

I've setup rsnapshot for 2 Ubuntu 14.04 servers. One is over SSH, the other is local. The configs are almost exactly the same, however the local backup seems to not honor the exclude_file. Global ...
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Cannot figure out what eats disk space, CentOS6

Here is disk free info: root@nqpc002/]# df -ha Filesystem Size Used Avail Use% Mounted on /dev/sda2 103G 85G 13G 87% / proc 0 0 0 - /proc sysfs ...
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Ubunut 14.04.3 LTS network stopped working on VMWare

After restart, networking suddenly stopped working and I'm unable to connect to internet. ifconfig -a eth0 Link encap:Ethernet HWaddr 00:0c:29:c9:1a:f3 inet6 addr: ...
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DNS server (bind9 on Debian) problems with Windows 7

I have made a home server in my house (for downloads, get arduino readings and stuff like that) I want to access this server with a domain (Ej, mylocaldomain.com) to do that I have configured a bind9 ...
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2answers
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How to login ssh without a password using the ssh host key?

I want to login to this machine, but I just have an ssh host key, not a password. Example from nmap: | 1024 b6:00:e3:71:8c:a3:4e:e4:8b:9a:b5:c2:68:86:de:82 (DSA) |_ 2048 ...
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useradd user with group with same uid and gid

I want to add a user named "nexus" with uid as 1234567 (example number) and gid 1234567. I'm running the following command: sudo useradd -r -U -u 1234567 -g 1234567 -m -c "nexus role account" -d ...
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4 views

Wing IDE on Kali Linux

I am trying to install Wingide 101 on a 64 bit Kali Linux vm, I have downloaded the Wingide package (wingide-101-5_5.1.9-1_amd64.deb) from the wingware site and followed the directions outlined on the ...
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14 views

What is the noauto mount flag for?

Entries in fstab exist ONLY to specify things to mount at system boot or manually with mount -a, right? But I was reading up on the noauto mount flag, which apparently makes corresponding fstab ...
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Creating a development VM from Arch Linux

I'm trying to set up a particular development VM. I'm doing web development, so it will host some version of LAMP. What I want to accomplish: I'd like it to be Arch. I want to be able to ...
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List the monitors physically connected to remote computer (make/model details)

If I were sitting in front of the computer I could run xrandr --query in terminal but this doesnt tell me the make/model (at least i know something is connected) but while remote (using ssh) I receive ...
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1answer
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iptables routing of wlan0 to usb0 and usb1

Server: wlan0 (WAN) - 192.168.0.17 usb0 (LAN) - 192.168.2.15 Client: usb1 (LAN) - 192.168.2.2 wlan0 <-> usb0 <-> usb1 How do I configure a NAT to share my wlan0 internet access to my ...
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1answer
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Connecting a port in linux from other machine

I'm going fast to asking this question so i'm apologize. I'm on Linux Fedora 23. I'm running an application Telegram-CLI with listening a port using this argument. -P 1337 That is fine and works ...
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Why can't Ubuntu read external volume files after I recursively { chmod +r and remove ACL }?

The commands I used are: sudo chmod -RN /volume and sudo chmod -R +r /volume The external volume is a backup of OSX home folders. The above made it only possible to read what contents is in the ...
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EVIL AP - Internet connection bridging issue

I've been trying to create an EVIL AP scenario in my test lab for a couple of days, but I always face the same issue. I can connect to the WIFI adapter and I receive an IP address etc, via dhcp. ...
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Track the calls of a command

To quickly explain the goal of my question, I use Ubuntu mate with an apple keyboard. To make the keyboard working properly, I had to remap some keys using xmodmap, such as interchanging the #/@ with ...
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On my Pi, chmod +w doesn't behave as usual?

$ ls -al file1 -r--r--r-- 1 pi pi 0 Feb 10 15:18 file1 $ chmod +w file1 $ ls -al file1 -rw-r--r-- 1 pi pi 0 Feb 10 15:18 file1 #only u is updated $ chmod +x file1 $ ls -al file1 -rwxr-xr-x 1 pi pi ...
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9 views

Linux:AWK gsub command not processing correct output

On the below csv file I would like to change the scope from ENG to PROD; I have used the following awk command but there is no change to the file, could anyone please tell me what is wrong? test.csv ...
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25 views

Ping between two Linux systems via an intermediate Linux fails

I have a simple network with three Linux systems running CentOS 2.6. Linux 1 (eth1: 192.138.14.1/24) | | (eth4: 192.138.14.4/24) Linux 2 (eth2: 192.138.4.3/24) ...
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Changed “path” variable in Ubuntu Linux and basic commands have stopped working

I'm using Ubunut 14.04 (as a virtual machine). I installed TeX Live system over the internet. Once the installation of TeX live finished, it said Most importantly, add ...
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1answer
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Debian - remote SSH authentication failed after numerous attempts of fixing it

So, a few weeks ago my remote SSH to a server stopped working. First of all my setup - I have my server running ESXI, 2 VMs, one as firewall and one where my server resides. I have a NAT rule set up, ...
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Bitnami edx cypress ubuntu server ip address is not browsing in local host browser

I have install vmware workstation 10 and open virtual machine bitnami_edx_cypress -4r02-ubuntu-14.02. In ubuntu typed ifconfig, nothing is come then I changed network adaption as NAT then typed ...
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RNDIS intermittently working on linux

I am trying to connect an RNDIS device via usb. When I plug the device in and run lsusb it seems to take ages (~20-30 secs) to run, and then the results are: Bus 004 Device 010: ID 19a5:0402 ...
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CentOS 7 Linux resize filesystem after partition resize

I am running CentOS 7 on a HyperV virtual server. I recently increased the size of the hard disk from 32GB to 64GB and used GParted Live to extend the partition, which seems to have worked as shown ...
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Stuttering sound, Cinnamon Mint 17.3, Dell Dimension T3500

This overpowered six-Xeon, 12GB ECC machine with Cinnamon Mint 17.3 installed on two 7200 rpm Barracudas (160GB and 1TB), suffers from s-s-s-severe stuttering sound playback. Chipset: Intel X58+ ...
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Linux Mint 14: LDAP users can't log in (passes login screen but desktop never appears)

I have a computer running Linux Mint 14 with ldap configured to use an OS X OpenDirectory server. ssh for ldap users works just fine and another similar computer has an nfs server which successfully ...
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OCI8 extension not loading in PHP 5.4, CentOS 7

I have a CentOS environment running as a VM guest. It runs and Oracle 12.1 Database, along with PHP 5.4.16, on Apache 2.0. I've gone through the installation steps to ensure that the correct OCI ...
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1answer
21 views

download file directly from http server

I would like to download a large file(s) from a web server given x.x.x.x:80 Usually wget and/or curl would suffice but I do not have a directory/to/file.zip to download, all I have is an IP. Any ...
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Installing linux on an imac

I am trying to get my new (purchased in 2016) iMac to boot Linux Mint Debian Edition 2. I have tried Booting from usb/cd drives, initiating a new fresh partition table per tecmints instructions ...
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Why does Amazon Video works on Google Chrome but not on chromium (Ubuntu)?

I tried firefox, opera, chromium and google chrome. Why does amazon video only works with google chrome?
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Change thunderbirds font sizes from command line

How can I change thunderbird's font sizes from command line? In firefox one can at least change an entry in the user.js and restart it, is there a similar way for thunderbird?
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1answer
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How to install dualboot linux in efi with weird ssd

I'm trying to install linux on my efi computer but still not working. I first installed Windows with 120/510 GB disk in EFI mode, and then want to install linux but every single linux just doesn't ...
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How do I create a Windows 10 bootable USB from Kali Linux

I deleted my recovery partition on accident when I was installing Kali. I've tried a method that was posted to this site, but I believe it only works for Windows 7. Any help would be greatly ...
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How can I diagnose recurring but unpredictable brief system hangs?

Yesterday, I wiped my / folder and installed a new version of Linux over my old executables, retaining my data mounted on other partitions and drives. Since then, the system will periodically hang for ...
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How do I enable hyperthreading on CentOS 6?

How do I enable hyperthreading on CentOS 6? I checked the flags field in /proc/cpuinfo and ht is in the flags section. Below is my processor information. ~$ lscpu Architecture: x86_64 ...
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Wireless for lan while using ethernet for internet on linux

So this is my situation: I need to limit my computer's wireless card to have only LAN access while using the ethernet port to have internet access.
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how to install ubuntu server on a new computer? [on hold]

I new to ubuntu linux and planning to set up home server using ubuntu. this home server will be used more like media storage, laptop backup, network print, file sharing and plex. Also I would like to ...
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What are the best (or well known) Linux or UNIX certifications? [on hold]

I've been reading online and a lot of people seem to think that certifications are useless in the software engineering field. However, I've been thinking of getting a certification in Linux or Unix ...
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1answer
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Omit domain part from username using realmd

I'm experimenting with joining my Linux machine to an AD domain, using realmd. Everything went very well (after enabling automatic home directory creation). Now I can login as jreinhart@domain.com ...
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Is there a way to apply preferences in firefox without restarting it

Instead of using manually about:config I want to be able to change firefox settings from command line (in linux). For this the only way I know is to change some lines in user.js (just as in my answer ...
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How do I access a window on another screen using Awesome?

I have two monitors. How can I focus on a window that is on a different screen than the one I'm working on? Mod+j/h works only for one monitor.
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How to access to my access point on Rasberry Pi

I have installed the image of UNIFI access point on my Raspberry pi and the ip is 192.168.88.243 the Raspberry is connect to a router with ip 192.168.101.1 i have do nat on router,and the interface ...
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19 views

How to save SSL certificate in terminal without openssl?

I've got the following scenario: A service runs on server-1, calling server-2 via SSL over proxy-1 Server-2 is external and out of our scope Server-2 can only be reached from server-1 over proxy ...
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How to start a systemd service after user login and stop it before user logout

I have a Fedora 23 Machine. I have a directory/file synchronizing bash script that synchronizes my local /home directory to a remote directory (in a NAS machine). I run it manually but I would like ...
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sed align all lines to last line in a file Bash script

I have a files with below lines Dev_Campaign_1873.rpm Dev_Campaign_1987.rpm Dev_Campaign_9876.rpm http://52.30.241.107:8081/artifactory/api/storage/adifact Trying to get the output to a file as ...
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Disable WLAN as kernel boot option?

I have a CubieTruck Plus (CubieBoard5) running Linaro. It has an ethernet port and wifi card. I want to disable unneeded services and reduce power, so I want to stop anything related to wifi and wlan0 ...
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CentOS can't see RAID array partitions

I have the current setup composed by (4x) HDDS sda, sdb, sdc, sdd partitioned in the same way: /dev/sd[abcd] | |- /dev/sd[abcd]1 [EFI FAT 32] |- /dev/sd[abcd]2 [Linux RAID] |- ...
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Cannot paste folder into Nautilus

The CentOS 6 version of Nautilus offered 2 modes for displaying the directory/folder heirarchy: Graphical format Text format: as follows /this/is/the/folder/in/question A great thing about this ...
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NTP sync issue on client servers

Does starting up NTPD daemon will automatically sync the client server with NTP server? Our server is running 5 mins behind the current time when we checked the service was in stopped state so does ...