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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6
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426 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 ...
3
votes
0answers
83 views

Random SSH entries in Auth.log out of date order

Running an Ubuntu Trusty 14.04.1 LTS server at Rackspace but recently after running updates for bash, then with the reboots for the xen host vulnerability, I have the following weird issue. Some ...
3
votes
0answers
915 views

xen:balloon: reserve_additional_memory: add_memory() failed: -17

We're running Ubuntu 14.04 on an EC2 virtual machine. I've been seeing a lot of these errors in our kernel log: [ 704.032085] xen:balloon: reserve_additional_memory: add_memory() failed: -17 [ ...
3
votes
0answers
439 views

Haproxy using 10GB Memory and 100% CPU with 50k connections

On a Ubuntu 14.04 x64 server, Haproxy uses 3.3 GB of memory and 6.8 GB of swap, while handling 52k connections. The CPU usage also keeps spiking to 100% before most of the traffic was redirected to ...
3
votes
0answers
166 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 ...
3
votes
0answers
128 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, } ...
2
votes
0answers
18 views

UDP Traffic from outside to docker container is dropped after container restart

following situation: i have a hardware box with Ubuntu 14.04LTS as host for docker 1.4 I'm running an ELK stack in several containers. Curenntly the logstash container is exposing only port 514 to ...
2
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0answers
25 views

nagios mysql check using unexpected user after upgrading from ubuntu 12.04 to 14.04

I had Icinga monitoring my network. Everything was working fine. After upgrading from ubuntu 12.04 to 14.04, MySQL monitoring started reporting problems. I discovered that nagios check_mysql always ...
2
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0answers
81 views

Sudden increase in CPU usage and server response time

Over the past 10 days, I'm suddenly experiencing increased CPU usage on my website with CPU usage reaching 100% three times. During that time I'm unable to SSH to my website so I haven't been able to ...
2
votes
0answers
23 views

“ip route get” on Ubuntu returning default instead of static route

We've been trying to solve this seemingly simple routing problem for days. We are trying to route traffic through an OpenVPN tunnel. Specifically, traffic to 10.0.1.136 should be routed through our ...
2
votes
0answers
110 views

Ubuntu on EC2 boot error after dist upgrade to 14.04: disk drive for / is not ready yet or not present

I just upgraded my Ubuntu 11.10 EC2 instance to 12.04, then to 12.10 and finally to 14.04 using the do-release-upgrade command each time. I arrived at 14.04 and the instance will not boot now, it ...
2
votes
0answers
337 views

cloud-init does not grow the partition nor the filesystem

I am currenty preparing OpenStack-ready images of CentOS 7 and Ubuntu 14.04. For the "automation" I use packer, which is provided by you with a json-template. Packer then starts the installation ...
2
votes
0answers
128 views

ping: sendmsg: Operation not permitted (sometimes)

On a Ubuntu 14.04 running Haproxy, after a service haproxy reload, Haproxy is suddenly reporting all servers behind it as down. After some digging around, I noticed that ping is not working properly, ...
2
votes
0answers
2k 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 ...
2
votes
0answers
401 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
votes
0answers
76 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 ...
2
votes
0answers
47 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
votes
0answers
101 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
votes
0answers
213 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
votes
0answers
371 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 ...
2
votes
0answers
61 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: ...
2
votes
0answers
158 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
votes
0answers
89 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
votes
0answers
385 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
votes
0answers
166 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
votes
0answers
295 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
votes
0answers
274 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
72 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
votes
0answers
258 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
167 views

testsaslauthd - permission denied

Running: Ubuntu 12.10 32bits server version. I'm trying to connect to the saslauthd and getting the error I mentioned on the title (permission denied). $ /usr/sbin/testsaslauthd -u myuser -p ...
2
votes
0answers
198 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
votes
0answers
483 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
167 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
votes
0answers
619 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
votes
0answers
190 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
votes
0answers
187 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
votes
0answers
255 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
votes
0answers
239 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
votes
0answers
315 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
votes
0answers
399 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
votes
0answers
415 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
712 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
771 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 ...
2
votes
0answers
1k views

What is the difference between installing libcurl4-gnutls-dev or libcurl4-nss-dev in ubuntu 11.10?

For a software that I am installing in an ubuntu server, it needs the curl deb packages. When I try to install libcurl4-dev it says that this is a virtual package and I need to install ...
2
votes
0answers
952 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
555 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
85 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

ufw deny all incoming and outgoing not working!

I'm sure I'm doing something wrong. I'm expecting my current rules of "denying all incoming/outgoing" to cripple anything network related, but it's not. First, I did: sudo ufw default deny incoming ...
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 ...