Ubuntu Linux is a Debian derivative that aims to bring Linux mainstream. Questions on this site should generally refer to Ubuntu Server. Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.

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235 views

GPU access on docker.io container

I have an app that can only be run in in X11 environment with full GPU access/hardware OpenGL. I can run it on Hetzner servers as their machines have decent GPUs. Ubuntu desktop is installed and it ...
3
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0answers
153 views

Apparmor externally included hats not working

Running apache2 on Ubuntu 12.04, using mod-apparmor for change-hat support. I have installed and verified that change-hat is working but that it is not working for externally included hats like the ...
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41 views

Using Samba for AD and file sharing

We use a combination of Samba and WinBind to allow AD logins on an Ubuntu 12.04 machine. We also use Samba as a file server. We do not want Samba file shares to work for AD logins, but only local ...
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113 views

iproute multiple ADSL load balancer through VM

For a long time (2 years?) I have been running a virtual machine (Ubuntu 12.04 server) with a very basic outbound load balancing capability, sending different outbound connections out different ADSL ...
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57 views

System clock jumps over 50 seconds randomly

Having a really strange and frustrating issue with system clocks across a few (non virtualized) Ubuntu 12.04 servers. The system clock jumps unpredictably by over 50 seconds. Here's a part of the ...
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0answers
248 views

Is there a way to log a per request unique id for nginx?

There appear to be a couple of third party modules for this https://github.com/newobj/nginx-x-rid-header https://github.com/hhru/nginx_requestid However if possible I don't want to rebuild nginx, ...
2
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0answers
41 views

Change the logical volume

I am quite new this snapshot process. Let, I have three logical volumes as A, B, C. I worked on logical volume C. But accidentally when I restart the system, it goes to the snapshot A. How can I ...
2
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0answers
58 views

EC2 Ubuntu SSH Stops Working

I use about 15 EC2 instances to run some services. They are hosted on EC2 and run Ubuntu. Every once in a while the SSH stops working and the "Reachability Status" in the EC2 console shows that it is ...
2
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0answers
214 views

How to preseed options before network in Debian/Ubuntu PXE installation?

I'm trying to fully automate an Ubuntu installation over the network, but the preseed file is loaded only after the network adapter detection. Even with those options in the preseed file the ...
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0answers
48 views

Apache2 serves gibberish after 2.4 upgrade

Problem: Apache 2.4 on Ubuntu Linux 13.10 serves gibberish instead of content over https: using AuthBasic and .htpasswd-based authentication. Here's an example: ...
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0answers
108 views

Having trouble installing Racoon and Strongswan on the same system

I have two applications that I need to run, one uses Racoon for establishing IPSec tunnels and the other uses Strongswan. Therefore, I need both Racoon and Strongswan installed simultaneously on my ...
2
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0answers
71 views

Server clock runs fast - sometimes

I have 12.04 Ubuntu servers that make a radio link once per hour to send updates and sync clocks. The clocks all stray by about +/- 0.6 seconds per hour, which is expected based their crystal ppm. ...
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300 views

Networking with lxc containers with local dhcp and external ipv6 double bridge problems

I want to use both ipv6 externally on all my containers, and ipv4 external only on the hosts. I am using Ubuntu 12.04 64bit. For ipv4 on the container I use the DHCP that came with the lxc ...
2
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0answers
131 views

Nginx gives 404 error for rails app except the root

I have an Ubuntu 12.04 LTS VPS server that serves a static website with Nginx. I would like to set up a rails application that is accesible from the subfolder 'foo'. I use Passenger for serving the ...
2
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0answers
62 views

How do I get Ubuntu to forget about a destroyed zfs pool?

I have also asked this question over on Ask Ubuntu but I thought I'd try here as well. The details can be found at: ...
2
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0answers
96 views

web-based apt-get/aptitude frontend

I manage some 15-20 Ubuntu servers and am faced with the tedious task of keeping them all up to date. I have looked for a simpler solution and came across Ubuntu Landscape, but this is waaaay out of ...
2
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0answers
189 views

Samba deadtime not working

I have a server where I want to limit the amount of concurrent connections to Samba due to performance reasons. So I have max connections = 5 Which works fine. However, people who have connected ...
2
votes
0answers
173 views

Manual Multicast forwarding with Linux router

I have a Linux router (Ubuntu). It is working well with unicast but with multicast routing/forwarding I have some trouble. The problem is that my hosts do not send igmp/mld messages thus the router ...
2
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0answers
362 views

Group membership erratically lost after user logs in - Ubuntu, winbind, AD

I have a really strange issue where the wbinfo -g command properly indicates the AD domain group I am interested in and shows a particular user in that group - this is always true, so on the linux ...
2
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0answers
141 views

Ubuntu traffic shaping by source mac address or destination host

Is there an easy way to manage traffic shaping/bandwidth monitoring to limit traffic based on source mac address and/or destination server address?
2
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0answers
583 views

netatalk 3.0 wont start on ubuntu server

Netatalk 3.0 built from sources using ./configure --with-init-style=debian --enable-debian On startup i'm having troubles: Aug 09 01:30:11.415825 netatalk[15692] {netatalk.c:162} (N:AFPDaemon): ...
2
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0answers
151 views

Ubuntu: How to force default ACLs to take effect for newly created files/dirs?

I've created the following ACLs for a directory: # file: . # owner: www-data # group: root user::rwx user:www-data:rwx user:deploy:rwx group::--- mask::rwx other::--- default:user::rwx ...
2
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0answers
170 views

Is there an alternative for the Intel WebConsole for managing the RS2WG160 RAID controler on Ubuntu?

I have a server with 16 HDs connected on an Intel RS2WG160 Raid controller and I would very much like to know the state of the disks using the Web Console that Intel provides. The problem is that ...
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0answers
224 views

How do I print, identified as an AD user, from an Ubuntu client to a Windows print server?

I know my question may be confusing, so I'll clarify. I'm an admin at a school and am setting up the labs to use Ubuntu (12.04). Users already can authenticate against Active Directory (currently ...
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0answers
212 views

checksecurity / setuid changes, is this a bug or did somebody break in?

I received a mail by checksecurity from my ubuntu 12.04 server with the following content: --- setuid.today 2012-06-03 06:48:09.892436281 +0200 +++ /var/log/setuid/setuid.new.tmp 2012-06-17 ...
2
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0answers
298 views

linode cloud server, symfony and phar

Okay, So I've recently got a linode cloud server running Ubuntu 12.04. I got it configured with the default symfony2.0 installation, but I've got a project that runs on the Symfony2.1 installation.. ...
2
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0answers
367 views

NFS inherit permissions from shared directory - Mac OS client

Short question: Is there a way to have files on a NFS share on a Mac OS client inherit the permissions of the shared directory? Scenario: Ubuntu 12.04 server Mac 10.7.4 client shared directory has ...
2
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0answers
362 views

Ubuntu SOCKS proxy setup with two interfaces - how to pass DNS

I setup a SOCKSv5 server (Dante) on Ubuntu with two ethernet interfaces: eth0 is connected to my WAN with a static routable IP eth1 is connected to my LAN with a private IP I have a client ...
2
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0answers
592 views

Nginx doesn't seem to stop correctly

I'm using the following script to start/stop nginx: #! /bin/sh ### BEGIN INIT INFO # Provides: nginx # Required-Start: $all # Required-Stop: $all # Default-Start: 2 3 4 5 # ...
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0answers
631 views

“Error: Unknown error” when trying to start virtual machine from VMware server

Problem We are running VMware Server 2.0.0 build-116503 on a Ubuntu 10.04 LTS server. There is a virtual machine installed, running Lotus Domino on Windows Server 2003. Ever since a sudden power ...
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0answers
848 views

HT Link Sync Error after Ubuntu 10.04 LTS Installation

Update 1 I just assembled an exact replica of this server, and successfully installed Ubuntu 10.04 LTS in a RAID10 configuration. The success was confirmed by a login to the initial account. There ...
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0answers
125 views

apparmor: same profile for multiple apps

so I have: #include <tunables/global> /usr/bin/python2.7 { /** mixrw, deny /** lwk, } /usr/lib/jvm/java-6-openjdk/jre/bin/java { /** mixrw, deny /** lwk, } ...
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0answers
504 views

Getting ipsec-tools to work between Ubuntu Lucid hosts

I have two hosts, one is Charity with IP 67.207.128.184, the other is Hope with IP 67.207.130.204. I've installed the ipsec-tools package on each host. I have not installed racoon on either host. ...
2
votes
0answers
1k views

How does one configure networking on OpenStack?

I've been playing with Openstack, but I can't get the networking to function correctly. I'm just trying to get a single server going. I can bring up instances, but they get stuck at the BIOS loading ...
2
votes
0answers
1k views

SSH to an ubuntu machine using avahi

I have an ubuntu box that I connect to using avahi. Connecting to that box works fine for all services (I regularly use AFP, SSH and SMB on it) but I've noticed that whenever I connect to it from a ...
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0answers
14 views

File descriptor limit in nginx/Passenger app

We're running a Rails app in Passenger 4.0.45 and nginx 1.6.0 (installed by Passenger installer) running on Ubuntu 14.04. Under heavy load Passenger restarts all of the application processes. After ...
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0answers
14 views

How to determine the values for an LDAP bind to a Windows Server 2012 DC? [ldap_bind: Invalid Credentials (49)]

Sigh. I have been trying for nearly 6 hours to get my Gitlab deployment to authenticate via Windows Server 2012 Essentials Active Directory LDAP. I am running Ubuntu 14.04 for my Gitlab server. ...
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0answers
17 views

LXC networking not giving outgoing connection

I have a LX container on Ubuntu 13.04 which has worked flawless for the last 161 days. I restarted the host and started all the LXC's and I'm allowed to connect to the LXC containers from the outside. ...
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0answers
10 views

HBase issue with *some* regionservers connecting

I have an HBase cluster that is working, and I'm attempting to add some new servers to the cluster, but "SocketException: Invalid argument" and "FailedServerException: This server is in the failed ...
1
vote
0answers
19 views

Two port PCI serial card. One port can only set baud rate once

I have a new PCI serial card, being used on a Ubuntu 14.04 box. It's serial ports show up as /dev/ttyS4 and /dev/ttyS5. $ dmesg | grep ttyS [ 0.732690] 00:03: ttyS0 at I/O 0x3f8 (irq = 4, ...
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0answers
37 views

Nginx proxy pass not working sometimes

I have a proxy server (ubuntu) that can accessible via my global IP (not have domain). For Example 85.45.0.12:6021 and this reverse to local server. Local server (10.0.0.25) installed tomcat and ...
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0answers
52 views

Client SSL fails with GlusterFS 3.5

I'm running GlusterFS 3.5 from the official Ubuntu packages on Ubuntu 12.04 and when I enable client.ssl, mounting starts to fail. The error I'm getting is: [2014-06-13 10:33:52.690770] E ...
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0answers
78 views

Slower VM Performance for Headless Browser Tests on Xeon

I created a virtual machine on my desktop to run our continuous integration process. After I was happy with it, I moved the VM (keeping the same configuration) onto our server where I found that the ...
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0answers
275 views

Ubuntu 12.04/14.04 - apt-get 404 Not Found [IP: local-dns-server-ip 80] through proxy

I am trying to setup an ubuntu server (12.04 or 14.04) and have installed the server image onto the system I am using. Everything works fine until I try to run sudo apt-get update. When this runs, I ...
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0answers
31 views

Ubuntu : apt-get command error

I work with Ubuntu 10.04 everyday. Several days ago, when I release command sudo apt-get install .... it run very good, no error. I also able to open websites with my browser with no proxy. But, ...
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0answers
42 views

ChrootDirectory for SFTP user in virtual host directory with write permissions and SuPHP

I am trying to give a SFTP user (user2) writeable access to a virtual host directory (website) in /var/www/mywebsite under Ubuntu 12.04. I have setup sshd_config to use Chrooting so that this user ...
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0answers
39 views

heartbeat doesn't work on virtual interface

I try to use vertual interface as broadcast for heartbeat(bcast in ha.cf). When I try it I see this message in syslog: May 23 12:17:26 Ubuntu2 heartbeat: [1107]: ERROR: glib: Error setting socket ...
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0answers
71 views

Duplicity -> S3 backup failing with “[Errno 105] No buffer space available”

I have a nightly script on my Ubuntu 10.04 VPS which uses duplicity (0.6.24) to run incremental, encrypted backups to Amazon S3. This script had been working until a month or so ago when it started ...
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0answers
138 views

OpenSwan + AWS + Ubuntu 14.04 - Cannot reach server

i'm currently trying to set up a VPN in order to login into a private subnet hosted on AWS. The target host has Ubuntu 14.04 and installed OpenSwan. I've setup ipsec.conf, ipsec.secrets, xl2tpd.conf, ...
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0answers
11 views

Which dependencies are removable after building ruby?

I've successfully built ruby 2.1.1 on Ubuntu/Debian by installing the following dependencies: apt-get install \ autoconf \ bison \ build-essential \ libssl-dev \ libyaml-dev \ ...