Linux is the generic term for a UNIX-like open source operating system based on the Linux kernel.

learn more… | top users | synonyms (1)

0
votes
1answer
7 views

Why is my loop device size 0?

Why is my loop device not 600G in size? $ fallocate --length 600G sysvol $ sudo losetup --find sysvol $ sudo losetup --all /dev/loop0: [0831]:13 (/.../sysvol) $ sudo losetup --set-capacity ...
0
votes
1answer
28 views

How to properly make server backup [on hold]

Since I'm not really a server admin but I'm always eager to learn something new. I have a dedicated server to take care of. On that server are 2 VMs and on each VM a site (webapp). Both VMs have ...
1
vote
1answer
15 views

Can't execute any command

I can't execute any command on my Debian server, for exammple if I try to execute "reboot" command I have this : root@server002:~# reboot -bash: /sbin/reboot: Input/output erro Or if I want to ...
-1
votes
0answers
16 views

Need help configuring Ansible for the first time

Summary: I'm trying to install Ansible on an Ubuntu 14.x server. I'm trying to follow these steps: http://docs.ansible.com/intro_installation.html I have a problem with this command when I issued it ...
-2
votes
1answer
18 views

configuration of server - in order to support jpeg

but I can see gif/png support in the output of phpinfo(). I built PHP with --with-gd, but only GIF Support and PNG Support are in the output of phpinfo(), how do I enable JPEG Support? do i need to ...
0
votes
0answers
19 views

'ss' utility on Mac OS X [on hold]

Wondering if anyone could answer if it is possible to install the 'ss' utility on Mac OS X. I'm looking for an alternative to netstat. I've checked the MacPorts repository and don't see it there As ...
2
votes
0answers
14 views

Satellite 6's puppet is unable to find the hiera data sources

Using Satellite 6 which comes with Foreman 1.6.0.53. By default, Puppetlabs' documentation states that hiera configuration should be in $confir/hiera.yaml. # puppet config print confdir hiera_config ...
-6
votes
0answers
32 views

making a tiny datacenter in home [on hold]

iwant to make tiny datacenter at home. to host a file sharing website like mediafire or mega that's handle about 1500 user in same time Is this enough : HP ProLiant DL320e Gen8 CPU : Intel® ...
5
votes
1answer
56 views

Linux no space left on device issue

We have SUSE Linux OS: $ uname -a Linux 3.0.13-0.27-default #1 SMP Wed Feb 15 13:33:49 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux Only for a specific file the file creation fails with error no space ...
-3
votes
2answers
41 views

DNS not resolving 3rd level sub domain

I have a site working on a VM with Debian and Apache. The site is sitename.example.com . Now, I need to add a subdomain like subdomain.sitename.example.com on the same IP. What have I done until now: ...
0
votes
0answers
20 views

Moving a partition without gparted [migrated]

I need to move (shift) an ext4 partition on my disk in a headless Linux machine, like this: Before: [######### Partition #########][- Free space -] After: [- Free space -][######### Partition ...
-1
votes
0answers
12 views

mount osx folder via nfs case sensitive

I want to mount a folder on a mac using nfs. That is all working but mac is (by default) case insensitive. I now want the system (linux) that is mounting that folder to see it as case sensitive. Is ...
2
votes
1answer
41 views

Outgoing packet has NATed src address

Configuration/Topology: There are 3 machines hadoop2 | hadoop | driver eth0 10.10.15.3 | eth0 10.10.15.2 | tap0 192.168.0.199 ...
3
votes
1answer
62 views

Can I have different routing table for different users?

My Linux machine have two accounts. I want to set different default gateway for the different accounts. How can I do this, if it is possible?
1
vote
1answer
20 views

cURL to localhost gets dropped by iptables

I'm trying to use cURL on the shell to connect to localhost. I'm using curl http://localhost:80 to connect. Unfortunately, it's being blocked by iptables. Here's the error in the iptables log for why: ...
0
votes
1answer
23 views

Can you do multiple pvmove at the same time?

I have following case: Server with 4 disks - devices /dev/sdb - /dev/sde. Each of these disks is physical volume, and all of them are within single volume group. In this volume group, I have single ...
0
votes
0answers
10 views

What are the minimum permissions for a libpam-ldap unix domain socket?

I'm setting up an LDAP server and libpam-ldap to run on the same host, communicating via a UNIX domain socket. I'd like to give this socket the minimum permissions necessary, so random local users ...
-1
votes
0answers
30 views

Do network devices (router or endhost) evaluate the IP source address? [on hold]

Would accept a computer a packet to an established tcp connection from a computer which is not part of the connection ? E.g. I have three PC's. PC3 is driving a man in the middle attack and sniff ...
1
vote
0answers
26 views

Unable to join AD domain using Kerberos from kickstart

I am trying to join to the Windows domain in the %post chroot section of my kickstart script using kinit and net commands after setting up the samba, kerberos and sssd configurations in %pre. My ...
0
votes
1answer
26 views

Check if a constant file request is flooding the server

I'm new to this sort of thing so forgive me if I ask anything stupid. I am using moodle (open source LMS), it has a feature where you can upload a scorm package which requires a reliable internet ...
0
votes
1answer
31 views

500 Internal Server Error on Wordpress - BUT WORKS from a different country

MY MACHINE SPECS: I have a VPS (Location - Miami, 4GB RAM) running Centos and a LAMP stack. I have Wordpress installed on it with a SSL certificate. PROBLEM: Out of the blue, the admin ...
2
votes
0answers
26 views

How to change the display identifier of an application while running in linux? [migrated]

I want to change display identifier of an application in linux. It is possible in this way: gedit --display :0 But how to change it at runtime?
0
votes
0answers
19 views

Usermod -aG vs gpasswd -a as a best practice

I am aware that usermod -g is not best practice from many posts like this however they normally explain the usermod should not be used as it changes the primary group of a user. These posts dont seem ...
0
votes
3answers
53 views

rsync : write failed - No space left on device (28)

I want to rsync a folder from one server to another. But rsync synchronization fails: $ rsync -zr --compress-level=9 --delete /var/www/mywebsite/current/web/js login@192.168.1.4:/srv/data2_http ...
0
votes
0answers
10 views

Zpanel Not Showing Anything in Admin Screen / Reinstall / Repair Required [on hold]

I was trying to update zpanel repository so ran few commands including zppy update zppy update zgodx and after that my zpanel admin area shows nothing , it's empty, no modules show, if i try to ...
0
votes
0answers
16 views

dnsmasq fails to start, citing capabilities error

I have a stock install of Ubuntu 14.04.2 on x86_64 running a 3.13 kernel. I've installed the stock dnsmasq package (2.68), but when I start it, I get this error: service dnsmasq start * Starting DNS ...
0
votes
0answers
10 views

pacemaker/corosync node doesnt work after system upgrade

Few days ago I updated(yum update) one of my cluster node. While yum was performing cleaning operations after upgrade it tried to restart pacemaker. This operation hanged for quite some time until I ...
3
votes
1answer
58 views

Getting Error: “No space left on device” for a particular filename

I have a ext4 volume with lot of files inside a particular directory. Whenever I am trying to create a file inside it of a particular name, I am getting "No space left on device" error. $ touch ...
0
votes
0answers
26 views

WebServer Inaccessible

I have done an install of httpd and php on my new centos server. yum install httpd php -y I have done hundreds of webserver installs but for some strange reason I seem to be having troubles. When ...
0
votes
1answer
15 views

FTP with linux permissions not being set

I run a dedicated server with clients. I then accessed one client's account and created a folder. Let's call it TEST. I check permissions via the FTP client, and they check out to be ok (which is ...
-1
votes
1answer
23 views

How can I update nginx to lastest stable version?

I'm using a CentOS 6.6 Linux server and I have nginx 1.7.3 Installed on it . How Can I update Nginx to latest stable version (Nginx 1.8) ?
0
votes
0answers
26 views

Making the server communicate only with cloudflare IP`s [on hold]

I bought a new Server at OVH, after we got kicked by our old data centre to our DDoS. I want to setup the firewall correctly, which only allows communication with cloudflare servers, but I am not sure ...
-1
votes
1answer
38 views

What are the best practices to mirror a web app? [on hold]

I'm using a dedicated server which virtualize Linux machines, the data-center is located in Europe. All the virtual machines are Linux servers, one is the Apache front-end while another is Mysql ...
-1
votes
0answers
31 views

Changing hostname reboot reverts back to original [migrated]

So, What I'm trying to do is simply change the hostname permanently. I can update the hostname but when a reboot is issued the original hostname is used! I'm aware there is a file hostname located ...
1
vote
0answers
29 views

How to script parted to resize partition on running root filesystem?

I have a VM template that I use for building other VMs using virt-clone / KVM. The VM template is 4GB to save space. The storage for VMs that I build from this are on iSCSI targets or LVM volumes ...
1
vote
1answer
121 views

ps is giving a segmentation fault

I'm getting a segmentation fault when I try to run a simple "ps aux" for a certain user. If I run as root or another user it runs well. So I think is something related with ulimits, but I think that ...
1
vote
1answer
26 views

Azure Linux VM name resolution

We have a single virtual network, with a single cloud server on Azure. This virtual network has multiple server nodes - including Windows machines, and some Linux machines. One of the Windows machines ...
0
votes
0answers
9 views

FFmpeg transcoding what is needed in cpu way? [duplicate]

What is the exactly most important hardware for running a live steam FFmpeg transcoding server? Numbers of cores? Highest GHz clock for the CPU ? L3 cache on the cpu? I'm looking for buying a new ...
1
vote
0answers
6 views

linux + send wall message only to the specific user [migrated]

As all know , we can send broadcast message to all users on Linux machine But how to send message only to the specific user? For example #who rodegc pts/1 2015-05-04 04:23 (10.4.72.1) ...
1
vote
0answers
12 views

Switching to HP microserver [duplicate]

I wonder if anybody have experience with migrating to the latest Gen8 HP microserver from existing architectures. http://www.storagereview.com/hp_proliant_microserver_gen8_review In my case the ...
-1
votes
2answers
21 views

How to set specify encryption hash when creating Linux user? [on hold]

I want to create a few Linux user on my computer to test JohnTheRipper against different kind of password (including length, charset and encryption hash method). How can I easily specify which hashing ...
-2
votes
0answers
24 views

What is the correct directory for application depoyment? [on hold]

I and another sysadmin are constantly at loggerheads about where to put applications that we've built internally. I say /var/lib/<application-name> and he says /home/<application-name>. ...
1
vote
1answer
28 views

Remove a drive from a 2-drive RAID 5 array using version 1.2 metadata?

My situation is nearly identical to "How to remove a drive from a non-standard 2-drive RAID 5 array?", except my 2 TB RAID5 is using mdadm super block version 1.2. According to the best answer, ...
0
votes
0answers
10 views

How to set up Kali in VirtualBox with dsl modem? [on hold]

Anyone can help me to get internet inside my Kali? On another VB host I have Windwos 8 and all works fine here is ipconfig: Connection-specific DNS Suffix . : Link-local IPv6 Address . . . . . : ...
1
vote
2answers
29 views

Xerox Phaser 3010 won't print anything [on hold]

I've tried Fedora Core 18, 19, 20 and 21 (but I can't go back now, just had a chance while updating). Every time the system has no problem finding and identifying the printer. It doesn't have a PPD ...
0
votes
1answer
21 views

Having issues with inconsistent application of mod_rewrite rules

So I've been asked to clean up the URL's for the web app that we're currently running on apache (version 2.4.9 if so interested), but after messing around with mod re_write commands for a few hours, I ...
0
votes
0answers
34 views

Precision Time Protocol on AWS

We have a problem that requires a group of AWS linux servers to have the time exact by the millisecond between each other. (different nano seconds is ok, and we don't care if it is the real hour.) ...
0
votes
0answers
26 views

How to auto-start Degraded Software RAID1 under Debian 8.0.0 on boot?

If you remove a component HDD from an array, it drops into a "busy box" shell under "(initramfs)" saying something similar to "cannot mount root device" as the RAID1 array becomes "inactive". It is ...
1
vote
0answers
9 views

Linux kernel treating racoon's UDP socket as nonexistent

How can I figure out what's going on here? I've tried everything I know how to do short of adding printks or running a debugger on the kernel. I'm hoping somebody can spot something obvious that I've ...
-5
votes
0answers
19 views

HDD AND SSD FOR webserver [on hold]

I have a dedicated server with a ssd disk of 80gb and a HDD of 2tera. I want to install nginx + mysql + and all codes php in the ssd driver, and put all assets contents (more than 100GB) in the HDD. ...