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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29
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4answers
3k views

Windows vs Linux Local Time?

Ever since I started using Linux in dualboot with Windows I noticed that when I rebooted the machine, the time on the other OS was wrong, e.g. it was 12:00 on Linux, then I rebooted and on Windows it ...
0
votes
0answers
30 views

One virtualbox linux machine act as router the for second virtualbox machine

I have 2 virtualbox machines setup with debian. The first one has 2 network adapters: NAT and Internal Network, the second one has only 1 network adapter: Internal Network. On the first one I have ...
0
votes
1answer
39 views

CR versus LF: which should I recognize as “end of line” in terminal program? [closed]

I understand the use of line feed and/or carriage return as line separators in Windows, Macintosh and Linux. But now I'm writing a program that will accept text user input over a TCP socket, and I ...
8
votes
4answers
4k views

Can't write to file /sys/class/backlight/acpi_video0/brightness (ubuntu)

I am trying to change the brightness by overwriting the value on this file: sudo echo 5 > /sys/class/backlight/acpi_video0/brightness -bash: /sys/class/backlight/acpi_video0/brightness: Permission ...
2
votes
1answer
18 views

Real-time option in ulimit

Calling ulimit -a returns the following: core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, ...
5
votes
3answers
57 views

Is sendmail a smtp server? Is there any difference between MTA and mail server?

I am new to mail and do not exactly know how it works. I have seen administrators use sendmail to send out email. Is sendmail a smtp server or is it a client that need to relies on smtp server to ...
0
votes
1answer
25 views

Understanding fdisk -l output and calculating storage

I have basic understanding of disk. (Please correct me if i am wrong) I understand on 1 platter, there are 2 heads, 1 on top, and 1 on bottom. Both side of the platter is able to provide storage ? On ...
-1
votes
0answers
14 views

Logs extracting, limiting cpulimit

I have the following script for extraction of logs. Need to make work it with cpulimit, to not overload the server. Can anyone help? nice -20 zcat /var/detail-20150418.gz | sed ...
0
votes
0answers
13 views

USB not working with a 3D printer

I got an Ultimaker Original+ 3D printer, which works fine when connected to my Windows 7 PC. But when I connect it to my Mint Linux PC, it isn't detected at all: Cura (the 3D printing software) is not ...
1
vote
3answers
35 views

How to check the program is installed on linux?

I want to check if the program is istalled on linux(CentOS). (I used java jsch) If not, send messages to front-end which program user lacked. I used which As you can see,I didn't have php ...
2
votes
1answer
2k views

Why does trying to use “mdir” give me “Can't open /dev/fd0: No such file or directory”?

Every time I try to use the "mdir" command on Ubuntu 9.10, I get this message: Can't open /dev/fd0: No such file or directory Cannot initialize 'A:' Any idea what it means, and how to fix it? ...
1
vote
0answers
10 views

Port configuration for USB 3.0 Camera setup

I'm building a setup with 10 USB 3.0 5MP color cameras and need to connect all of it to a single desktop computer running latest Linux kernel. By trial and error, I've found out that 3-4 cameras per ...
-1
votes
0answers
16 views

Using tortoise svn on linux with wine

I have recently tried to use tortoise svn on my linux system using wine. I followed the instructions from here and installed it under a 32-bit wine prefix. The installation went well, and it seems to ...
0
votes
1answer
31 views

Prevent facebook from seeing real IP

I am using OpenVPN through networkmanager on Linux, and all is going well. However, I checked my active sessions on Facebook and it was able to see the IP address from my ISP. How can I prevent my ...
0
votes
1answer
23 views

How to use Window Manager of Linux inside VirtualBox?

I have the same problem in Redhat Linux and Debian Linux. I cannot use the normal switching between windows. I mean this square window manager: I tried all keys CMD, ALT, CTRL, FN and SHIFT and ...
3
votes
1answer
5k views

wifi p2p between ubuntu 14.04 and android

I attempted to make a wifi p2p connection between Ubuntu 14.04(kernel 3.13) and Android 4.4 Kitkat(Samsung Galaxy Note 2) In Ubuntu I use wpa_supplicant v2.1 which is built in to Ubuntu ...
-1
votes
0answers
39 views

Any Linux LiveCD with nvidia drivers? [closed]

I need a Linux LiveCD but the crappy nouveau driver most include by default just keeps crashing. I can force the system to use basic driver with nomodeset option, but that's just silly. Is there any ...
0
votes
2answers
20 views

How do I suspend Arch Linux

What command suspends an appropriately configured Arch Linux system? User story: It's now or never. I'm on the run. I don't have time to read ArchWiki/Power_management/Suspend_and_hibernate but I ...
0
votes
2answers
104 views

10 (count 'em) x-caja-desktop windows open upon Mint 16 login, often

Running Linux Mint 16 Petra on an HP Mini 1101, up-to-date. Since install, sometimes when I log in (as either of two users) exactly ten (at least the last two times, I counted) x-caja-desktop (file ...
0
votes
0answers
25 views

VLC h265 failure to display

In VLC 2.2.1, an MKV file fails to show video, playing audio OK. Error message: Codec `hevc' (MPEG-H Part2/HEVC (H.265)) is not supported. http://pastebin.com/7duQbH6S has the verbose debug ...
0
votes
0answers
18 views

XBMC/Kodi Default Volume

Kodi (formerly XBMC) seems to use a global setting for volume level, so when it goes to the next episode, it stops using whatever I've recently adjusted it to and goes back to the default volume ...
0
votes
0answers
8 views

Using diff-highlight with Git GUI

Is there a way to use diff-highlight with git gui? The extra highlighted info is invaluable when comparing lines that only changed a bit, and while using diff-highlight from the terminal (described ...
6
votes
3answers
6k views

Harddrive - wipe out “hidden areas” like HPA and DCO also after malware infection

Background - Malware in windows (yes), possibly rootkit/bootkit. Don't want to take any chances. So, wiped drive with DBAN foolishly (PRNG, 8 pass). Later came to know that DBAN does not kill HPA ...
2
votes
6answers
3k views

Are there open source Linux drivers for the Panda Wifi USB adapter?

I'm looking for a wireless adapter for my new PC. My requirements are: it supports 802.11n it is cheap (under 30 USD) it has good, open source Linux drivers (will work "out of the box") preferably ...
2
votes
1answer
5k views

Kali 1.0.5 Internet Connection Problems

I have recently installed Kali Linux and am having connection issues. It says I am connected to the network, but I am not able to access the Web. A Ubuntu 13.04 running on the same machine (dual boot) ...
1
vote
1answer
198 views

How to configure Jenkins to run on port 80

How can I configure Jenkins to run on the HTTP port 80, only accessible to a certain Apache virtual server only on a specific subdomain? I have one virtual server: business.com running on the server. ...
0
votes
1answer
13 views

Key codes: xterm vs. Terminal.app

I mostly use iTerm, and it lets you customize the key codes sent to your terminal by individual keys. It has a couple presets labeled xterm Defaults and Terminal.app Compatibility. I'd like to make my ...
1
vote
0answers
19 views

lubuntu - change default window manager (awesome wm)

I'm using Lubuntu 14.10 and trying to change the default window manager to awesome. I installed awesome with: sudo apt-get install awesome Per the awesome wiki, I tried editing the ~/.xinitrc file ...
0
votes
0answers
10 views

Can squid be used in reverse or any other package be used in reverse

I'm attempting to host a minecraft game server. The primary obstacle is that the network I'm using only has 1 mbps upload. I have a vps available that has 1Gbps both ways. I would like to have the ...
1
vote
0answers
25 views

After installing updates and rebooting server SSH keys modified to use hostname instead of IP

After a recent update on my Ubuntu 14.04 AWS EC2 server my remote machines could no longer ssh in. Checking the syslog on the EC2 I found: Jun 26 02:27:06 ec2: ...
0
votes
0answers
13 views

Most minimal Linux for only a LEMP? [closed]

I have a small VPS with 1 GB of RAM. I want to use it for WordPress only. So I need to install MySQL. I heard Nginx is far better than Apache, so I am looking forward to using it. I heard people are ...
2
votes
1answer
36 views

Laptop as *primary* display for desktop PC via LAN remote desktop

As the title says, I want to use a laptop as the primary display for a desktop PC. There's a few added challenges to this, however: The desktop PC does not have a display device of its own. By ...
0
votes
2answers
28 views

How can I track internet upload/download on linux while ignoring local traffic?

I have two Linux boxes connected to a router and the router is connected to a modem. The Linux computers share file systems via NFS. I want to track internet usage upload and download values, ...
0
votes
0answers
17 views

Snapshot a frequently changing file on linux

I have a file which is frequently rewritten by some application. The application runs and exits in a loop, so the file handle is released in short intervals. Is it possible to get a consistent ...
0
votes
0answers
10 views

pulseaudio pavucontrol: Missing “ALSA capture from” in gui

I am trying to redict sound output to fake microfone, but I got stuck in pavucontrol. After trying 3 tutorials, I gave up due to missing "ALSA Capture from" options. It should look like ...
1
vote
0answers
19 views

Per-process network usage on OSX?

I want to periodically poll for per-process network usage. Is there a way to do this efficiently in OSX like netstat -p on Linux? I know there's lsof -i -Tqsf but it doesn't seem to show bytes ...
1
vote
2answers
4k views

Linux 64bit on Virtual Box with window 7 profession 64 bit

I have HP ProBook 450 G1 Laptop with Window 7 Professional. It is Intel Core i7 and it claim it has Virtualization Technology. But I can't find it in Bios to enable it. Now I installed Oracle Virtual ...
1
vote
1answer
38 views

Resizing a partition in Linux - Bad magic number in super-block error

I was trying to resize my partition with parted and resize2fs. I tried the following: #parted Partition Table: msdos Number Start End Size Type File system Flags 1 2097kB ...
2
votes
1answer
3k views

Sharing a Windows 7 wifi connection with a Raspberry PI

I have a Windows 7 PC that is using a Wireless network connection that I want to share on the PI. I have a working CAT 5 cable that I am using to connect the Win 7 PC to the PI. I have configured ...
0
votes
0answers
36 views

Debian laptop loses all network access, can't ping anything

I've got a laptop running Debian (Jessie) that for whatever reason has decided it hates wireless. It has some kind of Intel wireless card (not sure which), and so uses the iwlwifi package for ...
40
votes
3answers
41k views

How do you check how much power a USB port can deliver?

Some laptops have a special USB port that can deliver more power than the other ones. However it is not always easy to identify which one is the good one, nor how much power it can deliver. So is ...
31
votes
4answers
78k views

How do you set a password for transmission-daemon, the BitTorrent client server?

The config file is ambiguous, and keeps getting overwritten when you restart the daemon in Debian, anyway. In /etc/transmission-daemon/settings.json, there are these options: rpc-username ...
0
votes
3answers
2k views

Dual boot linux mint 14 partitioning

I have 2 primary partitions installed: 100MB system reserved (NTFS) and 230GB Windows (NTFS). Can I make a linux /home partition so that different distros can point at it and use it's files? And will ...
2
votes
3answers
4k views

Cant get squid proxy to work

i need squid proxy on my centos server. But i just can't get it to work. I did yum install squid. Here is my squid.conf file (i removed all comments): acl all src 0.0.0.0/0.0.0.0 acl manager proto ...
0
votes
0answers
21 views

CentOS / RedHat DHCP working, static is not

I have installed CentOS 7 minimal install without GUI when I setup network configuration with Webmin web interface or manually editing files with VI it does not work. When I use e.g. "yum search ...
0
votes
1answer
16 views

HTML5 videos jagged/pixellated.

I'm using Chromium browser on Linux operating system but any html5 videos (like Youtube videos) are not resizing properly. This means that if I want to watch Youtube videos lower than 480p the videos ...
2
votes
2answers
78 views

Java Swing apps steal/don't release focus in KDE

Kubuntu 14.04 (64bit) with KDE 4.13.3, Java Oracle 1.7.0_80-b15 This problem first occured in 12.04 and persists. Java version does not affect the behaviour, i.e. the same happens with 1.6 to 1.8. ...
1
vote
2answers
52 views

How to create a virtual machine from a bootable USB?

I need to take a live USB, that has Ubuntu 12.04 and a ton of customization on it, and create a virtual machine in Virtualbox from it. I ultimately actually want to get this installation up to Google ...
0
votes
0answers
15 views

GNOME window positioning mess

I want all newly created window to show up on display 1 or 2, without overlaping to another display, on GNOME 3.16.2. Currently I am using a 3 display setup, with two standard monitors and one ...
0
votes
0answers
12 views

External monitor flicker - probably when CPU usage is higher

I have Fujitsu UH554 ultrabook. At work I'm using Acer external monitor, via HDMI. At home I'm using HP Pavilion external monitor via HDMI -> VGA convertor. Sometimes if I'm at work (on Acer monitor ...