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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2
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14 views

Give group of users install privilages in R but not affect root install?

So we have a few users who use a number of servers for various computations. They constantly ask us to install packages from bioconductor and cran for R. It's a real bother and truthfully they can ...
2
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0answers
616 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, ...
2
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0answers
2k views

uwsgi complains about python application not found

looks like quite common with uWSGI application, but still can't find any valuable solution. I ma working on ubuntu 12.04 with uwsgi 1.0.3 and python2.7 Here is my config.ini file: [uwsgi] uid = ...
2
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0answers
342 views

Ubuntu 12.04 crash analysis - strange binary data on all open files at the moment of crash

A couple of hours ago we got a system crash on Ubuntu 12.04. We checked all the log files and there is nothing suspicious to blame to. Last stuff that was logged was some dovecot activity. There are ...
2
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0answers
2k views

nginx service won't start after reboot + won't give output for service nginx status or start

A few weeks ago I configured an ec2 ubuntu server for my rails app. everything worked great. the database is on RDS and I use nginx and passenger for the rails app. anyway everything worked great ...
2
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0answers
54 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
2k views

Huge CPU usage by “host” command on my web server (ubuntu, apache )

Suddenly my website became very slow. When I login into my sever with ssh, and checked the cpu utilization, I found host command was utilizing more than 80% cpu. The problem was solved by a server ...
2
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0answers
488 views

Using ufw on OpenVZ-based VPSes

I'm facing with a problem to set up ufw on Ubuntu 12.04 running on an OpenVZ-based VPS. I know there is limitations for ufw. I googled a bunch of articles how to resolve the issue (like: http://blog....
2
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0answers
1k views

Ubuntu Locales Incorrect for Python Application

I have a NGINX -> UWSGI -> Django(python) stack installed on an Ubuntu AMI on Amazon EC2. I've run into a problem when accessing a file with unicode characters in the name. The exact output from the ...
2
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0answers
460 views

sshd running at 100%

I'm running an Ubuntu/WordPress server on Amazon EC2 which is experiencing problems every 24-48 hours: I get a CPU alarm from EC2, log into the server, and discover sshd is running at 99.9% CPU. This ...
2
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0answers
82 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: ‹Å»<:þãÕåød|~>¾…‹ÑõáéÙ§ã=œƒb*¢...
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0answers
888 views

Ubuntu server 13.10: Installing and running Archipel from deb packages

I am setting up a server to host virtual machines based on Ubuntu Saucy. The decision was to use Archipel for remote administration. Installation of ejabber and Web Client UI went smoothly. For the ...
2
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0answers
291 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
2k views

lxc container doesn't start because - lxc_conf - failed to setup the console

I use ubuntu 12.04 server with all updates I was restarted lxc container by a command in shell: "reboot" lxc version is: 1.0.0~alpha1.0+master~20130930-1830-0ubuntu1~ppa1~precise1 #uname -a Linux ...
2
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0answers
133 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. ...
2
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0answers
506 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
516 views

Ubuntu 13.04: apt-get and check-new-release CPU bound

I own a virtual server hosted by a provider. A few hours ago I was notified about the VM being CPU-bound. I couldn't log in and rebooted the server. After the boot, apt-get and check-new-release were ...
2
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0answers
544 views

Why can't I get logwatch to output anything in Ubuntu?

So I installed logwatch using this guide on a Ubuntu 12.04 box. I also setup postfix and my initial intention was to add a daily cronjob to email me these reports (I have the same setup on a Debian ...
2
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0answers
117 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: http://askubuntu.com/questions/304822/how-do-i-get-ubuntu-to-forget-all-about-an-old-...
2
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0answers
425 views

OpenVPN: Run 'bridge-start' on boot before starting openvpn service (Ubuntu)

I've got OpenVPN working properly on my server, using bridge-start and bridge-stop scripts to create and remove network bridge, respectively. How do I set these scripts up to run bridge-start at boot ...
2
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0answers
272 views

Samba server: Script before allowing opening a share

I have a small home server running Ubuntu 12.04 with an external hard drive attached to it. The external hard drive is mounted with autofs. Autofs basically unmounts a hard drive if it isn't used for ...
2
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0answers
534 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
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0answers
955 views

“sched: RT throttling activated” KVM host - what does this mean?

Ubuntu 12.04 64bit - under a KVM parent. 32 cores. So we seem to be having some load issues. We have noticed this line in kern.log: "kernel: sched: RT throttling activated" What does this mean? Is the ...
2
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0answers
233 views

Raid1 disk degraded after reboot

I'm testing a Rackspace cloud server and have two Cloud Block Storage volumes set up in a Raid1 configuration. There are no system files on these volumes, they're purely for storage. Everything ...
2
votes
0answers
3k views

Tortoise Git seems to connect then refuse my connection: git did not exit cleanly (exit code 128)

I had been using Tortoise Git from my windows PC to connect to GitHub as well as a local server. One of my OS drives failed (raid 0) so now I'm tasked with getting it back up to speed. I've been ...
2
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0answers
812 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
189 views

four-disk md raid10-far can be assembled and ran as “clean, degraded” with only 2 disks. Bug or i'm missing something?

Today i was solving raid failure on raid10-far with four disks. One disk failed and another wasn't re-added after a hard reboot. The mdadm -D was reporting it's clean and running with only two out of ...
2
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0answers
275 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
745 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
334 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 default:user:...
2
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0answers
253 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 ...
2
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0answers
366 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 ...
2
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0answers
1k views

LDAP groups not always mapping, Ubuntu server 12.04

Ubuntu 12.04 server, AMD64, authentication via LDAP. I'm having trouble getting the LDAP groups to map to my user account when logging in, even though 'getent group' shows the correct set of groups ...
2
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0answers
391 views

How do I prevent graphite from filling up my primary disk on ubuntu in EC2?

I am running graphite (per reading this blog by Etsy) on an Ubuntu 10.10 linux install on EC2. Basically it works, except that my server is constantly exhausting reported free disk space. I say ...
2
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0answers
302 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 06:47:...
2
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0answers
343 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
496 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
552 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
votes
0answers
855 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 # ...
2
votes
0answers
1k 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 ...
2
votes
0answers
4k views

tftp server configuration under ubuntu, Access violation

Here is my configuration: $ vi /etc/xined.d/tftpd service tftp { protocol = udp port = 69 socket_type = dgram wait = yes user = nobody server = /...
2
votes
0answers
803 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
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0answers
108 views

Connection reset with duplicate query parameters

Is there anything that could cause a connection reset when duplicate query parameters are passed to a page? http://test/?test[]=1&test[]=2 Causes a connection reset http://test/?test[]=1 Works ...
2
votes
0answers
2k 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 ...
1
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0answers
22 views

How to forward port through VPN on Linux

I'm setting up a small CTF (hacker competition) and have a machine that hosts VMs. One of these VMs will be the target. The host machine cannot be reached through the internet, so I have set up a ...
1
vote
0answers
80 views

How to allow users on an openLDAP server to create, update, and modify users under a certain organizationalUnit?

I have been stuck on trying to allow openLDAP users that are in a certain group (EX: cn=Admins,dc=mydomain,dc=com) to create, modify, update, and delete users that are in another organizationalUnit (...
1
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0answers
59 views

Failed to bring up eth0; can't establish any network connections

So for 1,5 years now I was running a DigitalOcean droplet without any problems. did apt-get upgrade several times, changed some things - all fine! Last night suddenly all my alarms went off and my ...
1
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0answers
60 views

How do I ignore unmet dependencies while using apt-get remove?

I have a thin VPS running Ubuntu 14.04 with automatic security updates. It has filled up the /boot partition with a lot of kernel updates. I am trying to remove the older ones, but I'm running into an ...
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0answers
9 views

Ubuntu Samba ssh login changes after successful login

We have many Ubuntu servers running different flavors, but on some of our 14.04 versions we are having a baffling issue with ssh logons. When a user uses ssh to connect, they are prompted for their ...
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0answers
25 views

ZFS issue after enlarging image

I created a new img using the following command: truncate -s 250G disk.img and I replace the existing image that I used for zpool with that one using (lxd.img was 2G): zpool replace lxd lxd.img ...