Ubuntu 14.04, named "Trusty Tahr" is a Long Term Support release of Ubuntu Linux (released in April 2014). Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.

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What is the best practise to autostart unprivileged lxc containers on Ubuntu 14.04 64bit?

The current implementation of the LXC technology deals nicely with an issue of starting the privileged containers upon system start.. Users of the unprivileged containers (which arguably promise ...
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44 views

Virtualization limits for Ubuntu Server 14.04 LTS with KVM?

Essentially I'm after something like this: Virtualization limits for Red Hat Enterprise Linux with KVM but for Ubuntu Server 14.04 LTS. I'm trying to create some KVM guests with very large 1TB+ RAM ...
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166 views

Low SSD write IOPS (~100)

I am experiencing very low IOPS with a SSD in my server. I noticed this when running a mysql database server, which performed very bad when there were many (~100 per second) updates to an InnoDB ...
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101 views

File upload through Nginx with proxy_pass to Gunicorn is slow (Ubuntu 14)

I previously was running Ubuntu 12 where I had Nginx receive large file uploads, and then proxy_pass it to gunicorn / django (port 8000). This worked fine once I figured out I needed to set ...
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94 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 ...
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33 views

Q: lighttpd uses 2GB ram while idle for private page

I'm running a server with lighttpd installed. It runs php5-fpm and servering an owncloud server. Ubuntu Server 14.04 lighttpd/1.4.33 (ssl) (Jan 28 2014 17:26:04) - a light and fast webserver PHP ...
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487 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 ...
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147 views

MySQL permission errors

It seems that on a Ubuntu 14.04 machine the user mysql cannot access anything. It is not writing logs nor reading files. Witness: - bruno():mysql$ cat /etc/passwd | grep mysql mysql:x:116:127:MySQL ...
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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 ...
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16 views

Slow IO Performance with PERC H700/710 with current linux distributions

we noticed really bad write performance, on our new Dell R720 with Perc 710. Especially when it come to writing a lot of small files. The funny thing is that this bad performance only occurs on newer ...
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24 views

Kickstart for ubuntu works on vm but not on physical machine

So I have made a ks.cfg file for Ubuntu 14.04 server edition and uploaded it to http://address/of/my/ks.cfg and modified isolinux/txt.cfg with necessary changes. Now when I use this ISO on ...
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49 views

Ubuntu dd test becoming slow over time under ESXi 5.5

I have a HP DL320e running the custom HP build of ESXi 5.5.Guest is a Ubuntu server 14.04 with vmware tools installed. Write speeds to the two SSDs in RAID1 (disk added with thin provision) are great ...
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92 views

Haproxy backend server down due to layer 6 invalid response failed ssl handashake?

The scenario is we have two servers which are in different network . We want to have ssl communication from client to front-end and from front-end to back-end ! the front-end able to get ssl ...
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118 views

Ubuntu OpenLDAP TLS negotiation failure

I've been following the Ubuntu Server Guide for OpenLDAP, and have run into an issue with what I suspect is replication. If I run the following command on the client with access to the server: ...
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287 views

LDAP client can connect to LDAP host but can't see LDAP users

I'm configuring LDAP on a cluster of Ubuntu 14.04 machines. I successfully set up the LDAP host using these instructions. Now I'm trying to get an LDAP client to work using these instructions. ...
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82 views

LVM psychical volume partitions

I have 2 logical volumes in a volume group that span two hard drives. The problem that I'm currently having is that the I can no longer mount the volume group because the superblock is misreporting ...
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17 views

Force the GPL/PV driver to a lower link speed

I'm running Xen 4.4.0 on Ubuntu 14.04. On this Dom0 I am running: 1 DomU Ubuntu 14.04 with Shorewall 1 DomU Windows Web Server 2008 R2 with GPL/PV drivers Both domUs connect to the same bridge ...
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173 views

Ubuntu apt mirror repository with debian-installer

I am trying to make a mirror of the ubuntu 14.04 repository that includes all the files necessary to be able to be used as a source repository during Ubuntu 14.04 server installation. I had my ...
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40 views

RabbitMQ limited to one slave

I am having an odd issue with rabbitmq when deploying on AWS. When I spin up a master and connect a slave to it everything goes fine and I have two servers in the cluster. When I go to add the second ...
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300 views

Apache generating huge “AH00126: Invalid URI in request X-Requested-With: XMLHttpRequest” error log

Server version: Apache/2.4.7 (Ubuntu). The problems is [client 110.191.197.24:50666] visit /var/www/html/prokfv2/chatapp/www/w generating huge error logs.Could anyone please help me find out what ...
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93 views

Exim mail not signing DKIM. Don't find whats wrong. (detailed description of steps taken)

I'd like to setup my fresh server (ubuntu) for hosting my www.bolleboos.be website and enable sending of email from my php scripts. So... I installed apache, php, mysql, ... and for the mail exim4 ...
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113 views

task fstrim blocked for more than 120 seconds

I'm experiencing random crashes on my system. I've narrowed the problem to the fstrim program that's launched weekly by cron. In the console, I've got a set of blocked tasks among whigetch I find ...
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477 views

Apache 2.4 RequestHeader while reverse proxying with ProxyPass

I'm using Ubuntu 14.04 and have multiple Apache HTTP VirtualHosts listening on port 80. One site is reverse proxying for application listening on localhost. Apache has Basic authentification ...
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180 views

shorewall can'T start: UNTRACKED state requires Raw Table in your kernel and iptables

I'm trying setting up my firewall and installed and configured shorewall. Unfortunately I tried to directly configure iptables first, but this didn't work. When I start shorewall, I get this messages ...
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51 views

Postrotate “error running shared script”

Morning all, I realise this question has been answered already but the fix does not seem to work in this case so I'm hoping you guys can help. This this is the error I'm getting: error: error ...
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123 views

Setting Samba passwords using Chef without storing plain text passwords in data bags

We have a server that is configured using Chef. Currently, the way that chef manages the passwords is by simply copying down the samba tdb databases and updating the shadow hashes of each user. ...
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167 views

LDAP user's NFS files are mapped to nogroup (user ID mapped correctly)

In my office environment, I have set up multiple Ubuntu machines with LDAP authentication using the LDAP & NFSv4 server hostS. The LDAP/NFS server hostS exports the /home directory for all users ...
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2k views

ERR_INCOMPLETE_CHUNKED_ENCODING apache 2.4

I upgraded my Ubuntu server to 14.04 and Apache 2.4.7. Now my images don't load and console yields net::ERR_INCOMPLETE_CHUNKED_ENCODING. Also, I can sometimes see some of the images load for a little ...
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264 views

rsync chgrp Failing on NFS

I am trying to set up NFS on two servers to share files. The owner of the files in question have the same UID and GID on NFS Server and each NFS client. The NFS Server is running on Ubuntu 14.04 and ...
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108 views

php5-fpm doesn't create sockets for pools

I'm going off of section 3.1 of http://www.howtoforge.com/php-fpm-nginx-security-in-shared-hosting-environments-debian-ubuntu . I have created a directory in /var/run which www-data:www-data has ...
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1k views

Print directly to CUPS server from non-local clients (Ubuntu 14.04)

I set up a CUPS server with a few queues and printing from local clients (the CUPS test page and Samba) seems to work just fine. It seems like the CUPS server is denying non-local clients though: ...
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767 views

Phalcon does not load under nginx and php5-fpm

I've tried putting extension=/usr/lib/php5/20121212/phalcon.so into /etc/php5/fpm/php.ini, when it didn't work, I've put that into /etc/php5/cli/php.ini as well and when that didn't work either, I've ...
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21 views

Ubuntu 14.04 Cant connect to openswan/xl2tpd/IPsec VPN via iOS

I am setting up a VPN using openswan, xl2tpd, and IPsec and i am getting issues with connecting via an iOS device with the error "You were disconnected by the communication device". This is configured ...
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41 views

can't restart samba from restart or service, but /etc/init.d/smbd restart works

on ubuntu 14.04 I followed the tutorial at https://help.ubuntu.com/12.04/serverguide/samba-fileserver.html to set up samba (pretty trivial). After installing (and fully rebooting the machine, just ...
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13 views

Ubuntu 14 AWS m1.medium limit nproc 32000 32000 not obeyed

Just installed mongodb on an Ubuntu 14.04.2 LTS (GNU/Linux 3.13.0-29-generic x86_64) AWS m1.medium instance type. When I run mongo I get the warning: ** WARNING: soft rlimits too low. rlimits set to ...
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13 views

Windows Server IPP Index Page Formatting

I am trying to automatically add printers to linux clients using cups so unfortunately I cannot make use of GPO printer distribution in this case. I've enabled IPP printing on Windows Server 2012 (I ...
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25 views

BIND9 zone forwarding is not working at all. How can I troubleshoot?

I've read a lot of other ServerFault BIND9 DNS not forwarding questions and answers. Queries (using DiG) for FQDNs I expect to be forwarded respond as if the public internet has the authoritative ...
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169 views

Ubuntu 14.04.2 LTS - Errors on apt-get autoremove old kernel images - dpkg and grub errors

I was running my usual apt-get update / apt-get dist-upgrade sequence on my Ubuntu 14.04.2 LTS server, and saw some old kernel packages marked for autoremoval. I frequently run apt-get autoremove to ...
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0answers
19 views

Ubuntu 14.04 virtual servers lose network connectivity after inactivity

I'm trying to set up an MDM environment on a few virtual Ubuntu machines, 14.04 LTS running on VMware ESXI 5.5. They're currently very vanilla -- 14.04 mini CLI installs, 20gb storage with 2gb ram. ...
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9 views

Encrypt ubuntu 14.04 home directory with services accessing them without login

I have few services which gets started as soon as server boots up. Now i would like to encrypt my home directory. Will services work properly if i do so? Code for those services is present in the home ...
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24 views

UFW (Ubuntu 14.04) gazillion open ports after adding one rule

I have very strange situation with UFW firewall after upgrading Ubuntu Server 12.04 to 14.04. My UFW status looks like this ubuntu# ufw status verbose Status: active Logging: on (low) Default: deny ...
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7 views

How to make TCPFlow to not store package body?

Is it possible to configure tcpflow to store only package headers without package body? My log simply explodes in production.
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58 views

Unable to install grub to software Raid array in Ubuntu

How do you ensure Grub is properly installed on a software RAID array in Ubuntu? I have a failed RAID array on an Ubuntu 14.04 server. When I first tried booting it, the Grub screen came up, but ...
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18 views

Run compiled kernel with mcp251.x support

I have jetson tk1 board with ubuntu 14.04 pre-installed. I want to add mcp2515 functionality to it. How can I get it running? First of all, I set up the support of can bus in kernel and make and ...
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36 views

Can't Get Virtual Subdirectory Locations Working in Nginx

I have my webapps each as toplevel directories under /var/www, and ideally need to stay that way.. only one hostname (_), no vhosts, so I want "/" to point to my /var/www/mainsite/, and then I want ...
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32 views

rdiff-backup script not working on this server, but does work on an other server

I have a rdiff-backup script that isn't really working on a specific server. The script I'm using, is for allmost all the servers the same and they all work fine, except for one server. The first time ...
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82 views

virtualhost don't redirect to tomcat apache 2.4

I'm trying to redirect a specific domain to a application that runs on a tomcat server. My apache (2.4) runs on Ubuntu Server 14.04 and I really tried every answer here on stackoverflow. Most of them ...
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39 views

Ubuntu 14.04 bonding changing primary interface

I have a server with a fresh install of Ubuntu 14.04 server. Im trying to set up bonding but for some reason, one of the interfaces when made primary does completely shuts down the link (ssh, ...
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67 views

Samba AD DC Authentication Problems

I'm trying to setup an AD PDC using Samba4 on Ubuntu 14.04. My endgame here is to have an AD domain with users created by LDAP that can login to the domain and use roaming profiles, so that any users ...
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20 views

Ubuntu VServer: “TetherMeNRB” on FTP

I'm currently trying to setup a FTP service on my Ubuntu vServer which is the only service I'm missing currently as I successfully installed a LAMP server, mail server etc. - however I'm in trouble ...