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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How do you tell the linux network traffic control system to apply fair queueing across a set of traffic classes?

I've been skimming the Traffic Control HOWTO and it appears to have SFQ for dividing bandwidth evenly between flows. But my boss is interested in dividing bandwidth fairly (and/or weighted) among ...
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Show all my files on Linux like on Mac Os

I would like to know if there is a Linux file manager that features a shortcut displaying every single files on the computer like the "All my files" shortcut on Mac OS X (see ...
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Can't use standard ways to change password

It seems like the title of million internet posts, but I think this one is new. I login to a server server with a username usrname and a password, say pas. Then, I try to change the password. Here ...
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port forward from host to libvirt guest virtual machine that is bridged to the host nic

I am having no luck getting access from the outside to a http server running on my network in a Debian virtual machine that was created through libvirt. This what my network looks like: PC1: running ...
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1answer
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get the IP address of USB device in Linux

is it possible to get the IP address of a device connected via USB? The device in question is a wireless printer, its connect via USB and WiFi, the printer is assigned an IP address and its displayed ...
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2answers
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Moving all files from one folder to upper folder

I was searching the answer to question how to move files from one folder to upper folder and nowhere I have not found the answer mv name/* . Why I can't use this to moving files to upper folder? The ...
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Httrack filter links with certain pattern

I am trying to use httrack to download an entire webarchive from archive.org. The idea is to download only the archive links (as many as possible), but only the links that are really from the archive ...
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1answer
7 views

Squid 3.1 Monitor HTTPS logs

I have configured squid3 on Raspbian Wheezy OS, here is the configuration file (squid.conf): acl manager proto cache_object acl localhost src 127.0.0.1/32 acl to_localhost dst 127.0.0.0/8 acl ...
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19 views

Bad sectors on Disk

There are multiple bad sectors on my Hard disk, as the message is shown. I want to reinstall OS on the disk. Is it possible to do the same. If yes whats the process which needs to be followed.
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1answer
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How to install office 365 in linux centos 6

i have lots of work in office 365 but recently our company install openoffice which is very difficult doing work, so we want office 365 in linux centos 6, kindly suggest me how to install office 365 ...
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4answers
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How do I kill a process in Linux without using kill?

I am supposed to kill job #3 without using the command kill %3. How do I do that? I can’t seem to find the answer anywhere. I can only use one command. How do I go about doing this?
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Booting Debian from USB stick fails although Secure Boot is disabled

I have a Lenovo Thinkpad X1 Carbon (3rd gen.; 2015) with Windows 8. I used Unetbootin to create a bootable USB stick with Debian Testing (the USB stick is FAT32 formatted). When I plug in the USB ...
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Does wpa_gui need wpa_supplicant to initialize first to work properly?

I am using Linux on a custom board based on the Freescale MCIMX6Q-SDB (armv71). I installed wpa_gui, a GUI for wpa_supplicant, on the custom board. I'd like to know if I have to initialize ...
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resolv.conf keeps getting overwritten when dnsmasq is restarted, breaking dnsmasq

I'm running Debian Jessie and I'm trying to configure dnsmasq as a caching DNS server. I used a guide to come up with the following /etc/dnsmasq.conf: listen-address=127.0.0.1 bind-interfaces ...
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6 views

AIDE scanning time increase

ALL, At work we are using RedHat. We recently moved from version 5 to version 6. We also use AIDE to scan the system. What had been noticed is that going from RH5 to RH6 the scan time for AIDE ...
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1answer
27 views

Unable to SSH to internal IP

Read a few related questions here and here. The situation is as follows: assume that I have a computer A and computer B. I am able to ssh to both computers when by setting Port Trigger and Single ...
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1answer
29 views

does linux zero memory released by applications

I was thinking about making Linux more secure. Can I write code that grabs a bunch of memory and go through them looking for "interesting" stuff? main() { char *p = (char ...
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Mount sysv filesystem under Linux

I have a hard disk with a filesystem created by an old version of System V Unix that I would like to mount read-only on Linux. fdisk shows me: /dev/sda1 * 2048 86015 41984 63 ...
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ethernet usb adapter ax88179_178a, ARP captured with 62 bytes

While debugging some l2 protocols on an ethernet usb adapter (chipset ax88179_178a) I noticed 2 bytes from Frame Check Sequence (FCS) are promoted to user data. Dump of the arp frame 60 bytes is now ...
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1answer
12 views

Shrink a from ddrescue created image or copy to new image?

I have rescued data from a 2TB hdd (and it turned out that it was not faulty - but this is a different story) and I goe=t a 2TB image. Mounting this image under Linux, I can see (using df) that in ...
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2answers
28 views

Is there an easy way to do a host lookup by MAC address on a LAN?

Is there an easy way (on Linux) to implement host lookup by MAC address? In small local networks, it is easy to use for example arp-scan to find out the IP address of some device. I usually use ...
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0answers
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Running time of locating a file in a directory

When you search for a file in a directory with a large number of files (n), what is the worst case running time of locating this file? I mean does the OS (linux) sequentially check all filenames in ...
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Continuously partition after resize [on hold]

I run parted->resizeparted to a specific partition (for shrinking). How i can make now to all the partition to be Continuously Start\End (I don't want unallocated place + i don't want to use GPARTED). ...
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1answer
22 views

Start PuTTy session in remote host over network

I have 5 hosts - A, B, C, D and E. A and B are windows hosts. C, D and E are Linux machines running ssh server on port 22. I've copied plink.exe (putty command line backend client) in host B. When I ...
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How to install package with locale dependencies?

I've built my own PHP5.5 on my RedHat6.6 two month ago in order to support Sybase database connections. Today I want to enable memcached support. I tried yum install php55-php-pecl-memcache.x86_64 ...
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Can I raise the CPU usage of a application on Ubuntu?

I'm using GNU/Octave a lot, and sometimes I want to leave my computer alone doing some calculations while I'm working with something else (somewhere else). Using the system monitor, I see that Octave ...
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1answer
30 views

USB 3.0 not going past the speed of USB 2.0

I have a WD My Passport Ultra, which I know can reach 100MB/s easily while connected to USB 3.0 port, but I'm getting 40MB/s on 3.0 and 2.0 ports. What may be the problem? I run Fedora 18 (32 bit (on ...
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0answers
6 views

Keytool without root access and leiningen

My traffic goes through proxy which replaces SSL certificate. This causes problems when accessing the maven/leiningen packages through HTTPS. I tried to install the cert in my keytool but that ...
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1answer
24 views

Owner and User in Linux [on hold]

I am facing issue with permission in Linux. I would like to know the difference between User and Owner of a particular file and directory, if its a non root user in linux. Please help.
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5 views

XFS filesystem spanning drives and allocation group alignment

I have a query regarding creating an XFS filesystem on what is commonly incorrectly called a JBOD volume, that is, linear RAID or Spanning raid. I have two hard drives (1.5T and 2T) that I want to ...
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1answer
15 views

The best way to setup port forwarding

I have a situation when I want to connect from Windows machine to a web server running in virtual machine in Linux host. For this I would like Linux host to listen on a certain port and redirect it to ...
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aptitude safe-upgrade: apache2_invoke : already enabled messages

On my Ubuntu 14.04 LTS server I run unattended upgrades using that script in /etc/cron.daily: #! /bin/sh PATH=/usr/bin:/bin:/usr/sbin:/sbin export DEBIAN_FRONTEND=noninteractive date >> ...
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multiply ttys instances in console

I've run who command in terminal and see: myName console today_date myName ttys000 today_date myName ttys001 today_date myName ttys002 today_date why are there multiple ttys instances?
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1answer
19 views

Disk Space Changes with Command Used

Can anyone help me understand why I get different disk space results for /mnt/kvm_images depending on the command used? This is in Ubuntu 14.04. du gives this result: andrew@ubuntu:~$ sudo du -sh ...
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Change the location of GPT partition

I have a GPT partition table. I want to change the start and the end location in this table to specific partition. How can i do it without using Gparted. Thanks
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A proper mail server installation tutorial [on hold]

I know that there are plenty of tutorials floating around online on how to properly setup a mail server on Linux. The only problem is that most are severely outdated and the information isn't clear. ...
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Last partition fails to dd copy

I'm trying to copy the NOOBS Raspbian distribution's 8GB SD card to a new card. For some reason, the logical partition /dev/sdb6 will not copy correctly. Accessing fdisk /dev/sdb after the attempted ...
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1answer
23 views

SFTP file writes show completed in FileZilla but on server side 0 bytes written

Kind of a weird issue here. We have a lot of data dropped on our SFTP, and sometimes we get a lot of files written with 0 bytes. Upon checking the remote users SFTP Client (FileZilla) it shows the ...
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13 views

How do I restart a service with correct permissions?

I have a service that watches a directory for files. When a file arrives the service moves it to another directory. When the file is fully moved the service executes setWritable(true). As long as ...
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Comparing access control tools on linux [on hold]

If I need to limit someone's access, say by IP, there are a few ways to do it. iptables /etc/hosts.allow /etc/hosts.deny routing table, ie route add Which way is the best way to do it? Discussion ...
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1answer
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I want to shrink Windows 7 partition, expand Ubuntu partition, remove swap partition. [on hold]

I have Windows 7 and Ubuntu 14.04 installed on laptop. There is very little space (9 GB) for Ubuntu, and unnecesary 8GB swap partition which would never be used anyway (there is a lot of RAM on this ...
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0answers
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wget only new or updated files when the source files are compressed but the destination files are uncompressed

I would like to know how to wget files from a url which are stored with bz2 compression. However, I would like to only wget the new and updated files, relative to my destination, where the files are ...
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0answers
8 views

Set IP Rotation of sending Email using cPanel/WHM

I have setup Linux Server to send Bulk Emails. I am using phpList to send Emails and It is working fine. I have cPanel/WHM and root access. Now, to prevent BlackListing and to send Smooth Emails, I ...
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0answers
18 views

docker: performance of multi-process app

I've dockerized a legacy app which builds a thing, and while building it it uses a lot (but a constant number, around 32) of processess, which are ran using GNU parallel. They all are in the same ...
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Fedora ia_64 chroot environment - grub is retaining external environment

The system is Fedora 20. There are two environments, the first is the booted environment. It is LVM based and is labeled 'fedora'. The second is LVM based as is labeled 'vg_raidrootbu-server'. The ...
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1answer
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readline - deleting word under cursor

E.g. Alt-d deletes word until next word boundary. There's also a shortcut to delete until previous word boundary IIRC, but I'd like to delete word UNDER cursor (i.e. to current word left boundary and ...
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2answers
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ls with directory path shows files, but ls with file pattern does not?

Why is this happening? $ sudo ls /var/lib/postgresql/9.4/pg_log/ postgresql-2015-03-23_134626.log postgresql-2015-03-25_000000.log postgresql-2015-03-25_095920.log postgresql-2015-03-24_000000.log ...
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1answer
21 views

Get the Group name which has GID=0

I wanted to write a shell script in which it needs to give the group name whose GID=0.I used awk command like this, awk -F ':' {$3==0} /etc/group | cut -d ':' -f1 It works fine in redhat,aix.But ...
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LAN network freezes

I have three Ubuntu computers connected to a router. Everything's OK, both have internet conections running well and can connect via ssh to each other. In one computer, I usually launch a softwared ...
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3answers
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Linux server is running out of memory and swap

I guess there is some memory leakage and memory is not being freed. Is there some good ways to find out which process and why is leaking memory? The only temporary solution is to restart server. But ...