0
votes
1answer
75 views

Service that runs once when ppp0 connection shows up

We use wvdial to initiate a cell modem connection. We wrap it with nohup, launched by a cron job that checks if all is well every minute (everything we read said that wvdial and the associated ...
0
votes
0answers
34 views

Login dialog doesn't stay on screen long enough to input credentials(resume from screensaver)

I have an old computer which I upgraded the GPU to Mobility Radeon HD 5430 Series, I just installed the modules for Debian Wheezy, but now my screen-saver doesn't work anymore, when I come back to the ...
0
votes
0answers
31 views

Current situation of hybrid graphics

Let me ask simple question - what is current support of hybrid graphics on Linux? My friend has laptop with Intel and Nvidia GPU. He tried to configure Ubuntu with Bumblebee 2 years ago and this not ...
1
vote
0answers
198 views

Ipv6 Network unreachable Debian

Been trying to configure ipv6 on my proxmox server for about an hour now and I just can't seem to get it right. /etc/network/interfaces: auto lo iface lo inet loopback auto vmbr0 iface vmbr0 inet ...
1
vote
1answer
302 views

Send sleep command to usb disk mounted as /home (Fedora 20) from shutdown script

I have a usb sata2 drive connected to usb that is mounted as /home. When I turn off the computer/laptop the disk makes some high pitch sound as if the disks were still spinning and heads were not ...
2
votes
1answer
78 views

Running a constructed command from bash script

I constructed a command like this in a bash script a="my_cmd"; a="$a --verbose"; echo $a; $a; It works and executes my command correctly. But when I add an environment variable to the mix it ...
0
votes
1answer
2k views

setting up a relay port for postfix smtp on CentOS 7

A CentOS 7 server has postfix, dovecot, and mailx installed. I am able to make an IMAP connection to the server from my remote Thunderbird client running on my local devbox. But I am not able to ...
0
votes
1answer
627 views

how to get list of all processes accessing a shared library [duplicate]

I know that ldd utility can list all libraries linked to a process but I want it the other way around. I want all processes linked to a library. I want to replace a shared library without crashing the ...
0
votes
0answers
149 views

Sign a soap message from a JKS dynamically using Python Unix

I am currently calling a webservice using Curl command from unix . I have a requirement that I have to dynamically message sign the soap request every time I make a call to the webservice using my ...
3
votes
0answers
109 views

chromium (chrome) not loading home page automatically

when I start Chromium browser, it loads www.google.com as my "Home Page". This is configured in: Settings On Startup [*] Open a specific page or set of pages However, when I open another ...
0
votes
0answers
356 views

How do I start dnsmasq?

I have installed dnsmasq but I can't start it: $ dnsmasq dnsmasq: failed to create listening socket for 10.0.1.57: Permission denied $ sudo dnsmasq dnsmasq: failed to create listening socket for ...
2
votes
2answers
60 views

Network drives in the cloud?

Is there such a service that allows Linux servers to access remote cloud storage as if it were a file on a local network? I'm running a very small server, 512 MB RAM and 20 GB hard drive space, but do ...
1
vote
2answers
470 views

Why do iptables drop / log even if the appropriate packet should be accepted?

I'm setting up a server running Debian Jessie with some applications like iptables firewall, fail2ban, openvpn, apache, ... The iptables firewall is configured in the way, that it logs every packet ...
1
vote
0answers
35 views

network.service - after executing “telinit” network interfaces doesn't start

When I start RHEL 7 everything is fine, my network functions, I can ping other PC's etc: [root@localhost]# service network status Configured devices: lo eno1 enp2s0f0Team enp2s0f1Team team0 team0.300 ...
1
vote
1answer
497 views

Puppet-enterprise-install fails basename: missing operand

I just downloaded the puppet enterprise installer for my OS version from the puppetlabs website and the installer seems to fail immediately. Couldn't find anything online so I would appreciate any ...
0
votes
0answers
11 views

use php variables for awk regex commands [duplicate]

trying to implement autosuggest using php. autosuggest list generated using awk $input= $_GET["term"]; $suggest=array(); exec('awk \'BEGIN{FS=","}/.$input./{print $2,"-cost-",$1}\' ...
0
votes
0answers
171 views

Do I need systemd-logind service on server?

I'm setting up debian 8 lxc container on debian 8. And I see a lot of: [FAILED] Failed to start Login Service. See 'systemctl status systemd-logind.service' for details. when the container starts. ...
1
vote
1answer
165 views

How does the Linux kernel initialize console graphics?

Observation: I switch on a Linux box Boot loader displays its output on screen Boot starts with first output messages Screen goes blank, and never comes back on. Note: this is about the console, ...
0
votes
0answers
84 views

Xen ERROR Couldn't find xen kernel for Ubuntu tree

xen-4.2 running on server with multiple CentOS running guest, But when i am trying to install Ubuntu i got following error. How do i install Ubuntu on CentOS Xen Server? [root@example ~]# ...
1
vote
0answers
106 views

Disabling sslv3 on samba4

How can I disable sslv3 on samba4 ldaps and just have tlsv1 enabled? I have not been able to find any documentation or guides on disabling this feature. This is in regards to the poodle ...
0
votes
0answers
55 views

can't launch applet as root: “could not grab your mouse”

I'm programming a cinnamon applet..It requires root access.. so I've managed to launch gksu when the user click on the applet.. but I get "could not grab your mouse" error I've googled this problem ...
1
vote
3answers
340 views

Calibre don't convert from epub to mobi

Calibre did not convert my Epub Books to Mobi. It aborts with this Error: TypeError: QPixmap(): argument 1 has unexpected type 'ImageView' This is the full Error Message: calibre 2.20 isfrozen: ...
4
votes
3answers
669 views

Why does the specific sequence of options matter for tar command?

I was trying out tar command to make archive with .tar extension. please have a look at the following series of commands I tried: $ ls abc.jpg hello.jpg xjf.jpg $ tar -cfv test.tar *.jpg tar: ...
0
votes
1answer
304 views

xpdf configure WARNING - Couldn't find Motif / X

My environment is mint17 3.13.0-24-generic x86_64 I try to compile xpdf from source code: sudo apt-get install libfreetype6-dev libmotif-dev wget ftp://ftp.foolabs.com/pub/xpdf/xpdf-3.04.tar.gz ...
1
vote
1answer
140 views

Recognizing GPT partition table created with different logical sector size

I have a 3TB drive which I have partitioned using GPT: $ sudo sgdisk -p /dev/sdg Disk /dev/sdg: 5860533168 sectors, 2.7 TiB Logical sector size: 512 bytes Disk identifier (GUID): ...
2
votes
3answers
171 views

Find the number FN with awk

I have one document, and this document has several columns, like this: ,Flag2,,Flag4,Flag5,,,,,Flag10,Flag11,Flag12,Flag13 If I use awk to know the total number of fields, knowing the separator ...
26
votes
7answers
36k views

How do I grep recursively through .gz files?

I am using a script to regularly download my gmail messages that compresses the raw .eml into .gz files. The script creates a folder for each day, and then compresses every message into its own file. ...
3
votes
1answer
173 views

Invoke subshell command with loaded rcfile

I have some Python code that does: (this is a simplified version) shell = os.environ['SHELL'] os.environ['PATH'] = ... # some new PATH value if call(shell, '-c', ...
2
votes
1answer
188 views

How can I plot disk io per process over time

I would like to analyze and visualize the disk through put of certain processes over time to see how much data is written to disk and to see at which times a process does not utilize the whole disk ...
1
vote
0answers
120 views

Replay pcap on local machine only

RHEL 6.5. I have a capture of UDP packets, generated this way: tcpdump -nnXs 0 -i eth1 udp port 26477 and dst 233.86.230.111 -w ITCH.pcap I've moved this file over to a dev VM, and want to replay ...
5
votes
2answers
189 views

How do daemons like apache or bind open ports below 1024?

I know that ports below 1024 are protected and can't be opened by a user without sufficient permission. However, I'm wondering how daemons such as bind or apache can do so, though they aren't running ...
7
votes
3answers
1k views

Sed alternative for search and replace on very long lines

I have files that were generated by a program that did not put newlines at the end of records. I want to put newlines between the records, and I can do so with a simple sed script: sed -e ...
1
vote
0answers
130 views

Source code of the patches for Shellshock

I have a project for my grad level OS class, and I have decided to choose the Shellshock vulnerability bugs as my topic. There is a lot of great information out there, but I was curious if it is ...
0
votes
2answers
297 views

provide password for script begin called inside another script [duplicate]

I have written a shell script which in turn calls another script, but the second one prompts for password. I want to supply the password and pass the prompt without user begin notified. Here is my ...
1
vote
3answers
109 views

Renaming multiple Files, Bash Script, preferably with an Addition

Hello you wonderful people, I have a little problem creating a Bash Script. I have 7000 image files (dicoms). These files belong together and should be in order in ONE directory. However, the program ...
1
vote
0answers
164 views

Xrandr debian black screen when changing resolution

Impossible to change the resolution on wheezy to 1920x1080 I'm stuck and I'd down a bit as 1360x768. At the beginning in nvidia-settings i only had the choice to 1920x1080, after adding: Option ...
1
vote
3answers
333 views

Do I have multiple python on my computer? and how to uninstall one of them?

I encountered the problem that pip install - U numpy did not update the numpy version in python, which is similar to ...
0
votes
0answers
81 views

Add custom resolution

I want to add a customer resultion to my Fedora 21. The problem is that my Dell has a QHD display and I cannot select my favourtie solution of 1920x1080. That is why I tried to add a custom one: ...
0
votes
1answer
527 views

Error while making movie from png's with avconv or ffmpeg

I want to create a movie from a bunch of png's by using the command: avconv -i pics/*.png out.mp4 or ffmpeg -r 1/1 -start_number 1 -i pics/*.png -c:v libx264 -r 30 -pix_fmt yuv420p out.mp4 ...
0
votes
1answer
416 views

ssh-copy-id different port

i am trying execute ssh-copy-id in one port different than 22 (default). I researched and found the command below $ssh-copy-id -i ~/.ssh/id_rsa.pub "user@192.168.0.1 -p 22001" but, when execute the ...
2
votes
1answer
245 views

How to disable mouse support in terminal?

I'm asking this question while using xfce4-terminal, but I'm interested in a general solution: is there a way to stop a terminal emulator announcing mouse support in consoles? I need mouse-select and ...
0
votes
1answer
27 views

Unable to extract to specific directory

I am trying to extract to file to specific directory but it doesn't produce result Operating system : SunOS Command: zcat /export/home/tceng/Desktop/temp/3.tar.Z | tar -xf - -C ...
2
votes
1answer
89 views

Windowless xterm? (Faking a terminal for a process)

I'm fighting with a rather odd problem with Matlab. The startup script is located in /opt/matlab_2013b/bin and is called matlab. When I run it in terminal, it works fine. But I want to make a ...
0
votes
3answers
537 views

How to use password in shell scripting

I am writing a script which greps for for multiple files from 3 log files. One of the log file is created as superuser and every time it executes it prompts for password. How do I put it the same ...
10
votes
7answers
3k views

Is it possible to reverse a command in the bash shell?

I was wondering if there is a (simple) possibility to redo/reverse a command that was executed in the bash shell? (to make it undone) Is there something similar to the ctrl+z combination to redo any ...
1
vote
3answers
103 views

What is the preferred way of using low port numbers in linux?

Long story short: I want Glassfish to listen to port 80 so that you don't have to specify port when typing in the url, but linux doesn't permit using low port numbers without root and running ...
2
votes
1answer
2k views

Restore sudo privileges

Trying to install tor-browser, I screwed up my sudo privileges when I tried to take ownership of a directory. Now I get a message: sudo: /usr/bin/sudo must be owned by uid 0 and have the setuid bit ...
2
votes
2answers
117 views

Tmux stops responding to key bindings after xclip usage

I use Tmux version 1.9. To push tmux's clipboard to my X clipboard I have such a string in tmux.conf: bind C-c run "tmux save-buffer - | xclip -i -sel clipboard" The problem is that after pressing ...
1
vote
0answers
105 views

ufw firewall - how to only “allow” when I am going through a proxy

I am using a proxy to navigate on internet, and I am trying to setup a firewall that will only let me connect to internet via this proxy: if I forgot to turn on the proxy, that I should not be able ...
0
votes
1answer
119 views

How to modify recipient when bouncing email in Mutt?

I would like to send several times the same email to different recipients. I cannot put all recipients in CC or BCC because 1. one recipient should not see emails of the others (so not CC) and 2. I ...

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