Ubuntu 12.04, named "Precise Pangolin" is Long Term Support (LTS) release of Ubuntu Linux. LTS releases receive updates for 5 years and have available paid support from Canonical. The version number comes from the year and month of release (April of 2012).

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Change and initialize Postgresql 9.3 default data and log directories on Ubuntu 12.04 LTS

On Azure with Ubuntu 12.04 LTS image, we're trying to change Postgres 9.3 default data and log file paths and also initialize them for the first time on a secondary drive /mnt/pgdata. We've starting ...
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4answers
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Ubuntu 12.04 host lookups extremely slow

I'm having issues with one of my servers taking a long time to look up host names. This is an Ubuntu 12.04 box, so I've tried following the new resolvconf directives. In my /etc/network/interfaces ...
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1answer
1k views

bash tab completion only works for root

I set up an Ubuntu 12 server (on rackspace cloud using their preconfigured image) and created a non-root user. When I log in as the standard user, pressing [TAB] at the terminal outputs an actual tab ...
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Unxeplainably high disk IO caused by nginx worker processes

I have just setup a ubuntu 12.04.2 LTS server that serves a big number of quite large static files. The configuration is the same as on another machine which works great. The other machine uses Ubuntu ...
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1answer
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Intel NIC X540-T1 non-functional in Ubuntu Server 12.04

I have installed three Intel X540-T1's in servers running Ubuntu Server 12.04, but all are non-functional, no link lights, no packets sent or received, and no connection on ip4 or ip6 whether set up ...
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No network loopback device after security update ubuntu 12.04

I've had Ubuntu 12.04 on a server for the last several months, with everything working fine. Last night I did an aptitude update && aptitude safe-upgrade to bring in all the latest security ...
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1answer
988 views

Add active directory user to linux group upon sign-in

I have Active Directory sign in working on an Ubuntu 12.04 box. When an active directory user signs in, I would like to add them to the group sambasharers. Where and how would I add this declaration?...
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Ubuntu 12 crashed and took down network

We recently set up a new Ubuntu 12.04LTS server on our network. It's not fully configured so it's not doing much beyond sshd and a default apache2 install. But this evening it appears to have ...
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1answer
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Riak “error”:“insufficient_vnodes_available”

We have 4 nodes Riak installation. They are running on Ubuntu 12.04 LTS Precise installed servers. We have installed 1.1.4 at August 1st 2012 and upgraded 1.2.0 when its available. Server names are: ...
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3answers
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Install Ubuntu truncate command to Mac OS X 10.7

Is there any way to install Ubuntu's truncate command to Mac OS X 10.7 in order to use the command in Terminal shell?
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1answer
15k views

a2ensite error “Site not exist” when creating virtualhost apache2 on ubuntu

I have created files for my site in the /home/junda/www/ directory. I use symfony2, means the public files goes to /home/junda/www/symfony2-tries/web/ directory. I then type this following command to ...
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2answers
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Is there an easier way to add public-key authentication for new users?

I am in the arduous and painful process of setting up secure users on a new web LEMP server with Ubuntu 12.04. I was initially going to setup something like vsftpd or proftpd but many have suggested ...
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1answer
11k views

Is It key_buffer or key_buffer_size?

I search the internet regarding the correct variable in my.cnf file. Some said that key_buffer_size is deprecated, but some said that key_buffer_size is the correct variable in my.cnf. So, what is ...
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3answers
9k views

How to uninstall the redis installed from source in ubuntu 12.04?

I'd installed the redis-server on Ubuntu 12.04 from source. But at somepoint it couldn't get installed fully, failed on last make install cmd. Then I just installed via apt package. Now I'm confused ...
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5answers
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Ubuntu 12.04 LDAP SSL self-signed cert not accepted

I'm working with Ubuntu 12.04, using OpenLDAP server. I've followed the instructions on the Ubuntu help pages and can happily connect without security. To test my connection, I'm using ldapsearch ...
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1answer
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Postgresql 9.2 “invalid locale name” on Ubuntu 12.04

Today I installed Postgresql 9.2 on Ubuntu precise via apt.postgresql.org – all was relatively painless until I got stuck in a "invalid locale name: it_IT.utf8" error: root@ubuntu:/tmp# sudo -u ...
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5answers
471 views

Should I enable automatic security updates on a Ubuntu server? [closed]

I can't seem to find an agreed answer on this anywhere, so I figured I'd ask it myself. I have five Ubuntu servers running either 12.04 or 14.04, should I enable automatic security updates on these ...
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2answers
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How to find cause of main file system going to read only mode

Ubuntu 12.04 File system goes to readonly mode frequently. First of all I have read this question file system is going into read only mode frequently already. But I have to know if it's not caused ...
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setting debconf selections for keyboard-configuration fails… layout ends up as Afghani

I have a machine I netinstalled, with german keyboard set, but it ignored my setting, and it is installed with US keyboard. I'm sure I set it, because if I don't set it, it asks interactively, but I ...
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1answer
772 views

Cannot ping B from A until B pings A

I have a server cluster all connected on a local network(all physical machines, not virtual). When trying to ping from Server A to B, I get a Desitination Host Unreachable. I can ping from B to A no ...
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2answers
2k views

Active directory integration not working properly with winbind and samba

I'm trying to get my linux box to use active directory authentication. I believe I have almost everything setup correctly. I'm able to issue wbinfo -g and wbinfo -u and see all the groups and users ...
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3answers
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Svn authorizing over sasl+ldap failing after Ubuntu update 10.04 -> 12.04

I have working svnserve solution on Ubuntu 10.04 for authorizing svn users over SASL to Active directory (LDAP, not LDAPDB). Config files are at the bottom. After upgrading server to 12.04 release, ...
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1answer
2k views

I need to monitor a log file with monit if the file does not change monit will alert

I need help. I was looking in to Monit documentation and I need help. I could not find my answer there. I need to monitor a log file of a service, if that log file stops to increase in size or even ...
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1answer
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Abnormal sendmail activity using up the server memory on my Ubuntu 12.04 server

Environment Rackspace Ubuntu 12.04 Wordpress MySql The issue I have been experiencing quite serious out-memory-issues in the last couple of days. While I resolved one possible cause the issue I ...
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1answer
279 views

How to prevent a service from starting until a volume is mounted?

Using Ubuntu 12.04 or 14.04, how can I prevent an upstart service from starting until a couple of network volumes (GlusterFS) get successfully mounted?
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Daemon dies but upstart thinks it is still running

If the daemon process dies, I'm unable to restart it manually: start foo results in a message that "start: Job is already running: foo", and stop foo hangs indefinitely. start on runlevel [2345] stop ...
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2answers
241 views

ipv6 multiple addresses and firewall on remote machine

I have an ubuntu server (serverA) which has a couple of IPv6 addresses. One of these is based on it's MAC address, and is known to the network, the other one I presume ubuntu created as a 'private' ...
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1answer
8k views

Why does name resolution not work on the server itself?

I have got an Ubuntu Linux 12.04.1 server which as one service runs bind9 for name resolution for a xxx.local domain which forwards all other requests to the name servers of my Internet provider. ...
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3answers
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runit - unable to open supervise/ok: file does not exist

I'm trying to figure out why runit will not boot or give me the status for the managed applications. Running on Ubuntu 12.04. I created /service, /etc/sv/myapp (with a run script, a config file, a ...
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1answer
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Why does this package (ppa:ondrej/php5, it's PHP 5.5) break the apache2 installation?

Problem Currently this package (ppa:ondrej/php5) is quite popular for installing the latest version of PHP 5.5. I've worked quite much with it, and everything ran smoothy, on several (dev) servers. ...
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2answers
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What is the effect of adding a user on a MySQL slave?

This is on a Ubuntu 12.04 server running MySQL 5.5 which is slaved to an OS X server running MySQL 5.1 Logrotate has been sending error: error running shared postrotate script for '/var/log/mysql....
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2answers
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How to configure SSL for CouchDB

How do I configure Couchdb to use ssl, I've followed the instructions here with no success. I generate my own self-signed certificate: mkdir cert && cd cert openssl genrsa > privkey.pem ...
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2answers
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OpenLdap TLS authentication setup

I am trying to setup openldap on ubuntu 12.04 by following this guide https://help.ubuntu.com/12.04/serverguide/openldap-server.html When I tried to enable TLS on the server by creating a self signed ...
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1answer
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DNS Server Behind NAT

I've got a Bind 9 DNS server sitting behind a NAT firewall, assume the Internet facing IP is 1.2.3.4 There are no restrictions on outgoing traffic, and port 53 (TCP/UDP) is forwarded from 1.2.3.4 to ...
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2answers
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Ubuntu 12.04 logger won't write to remote syslog

I'm trying to use logger to send events to a remote syslog server. The syslog server is Ubuntu 12.04 running the default rsyslogd. The "client" servers are both Ubuntu 12.04 and SLES11SP1. On SLES11, ...
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1answer
7k views

Dovecot (with Postfix) configuration has connection refused when accessing auth-userdb

...this was a hard one to describe in a title. This description should highlight the problem. Context I was following the Workaround.org tutorial to install a postfix, dovecot (plus some additional ...
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2answers
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Error 2013: Lost connection to MySQL server during query when executing CHECK TABLE FOR UPGRADE

I just upgraded Ubuntu from 11.10 to 12.04. My rails app now returns the (passenger) error "Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (111) (Mysql2::Error)". I ...
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4answers
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Chef 'notifies' fails to restart or reload services

I'm using chef-solo v10.12.0 to configure an Ubuntu 12.04 VM, and I keep running into an issue where services don't restart or reload as expected when a configuration file is changed. There are no ...
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1answer
734 views

GlusterFS fails to mount on boot but mounts later in Ubuntu 12.04

Having two machines, profitmargin and revisionist, I created a volume in profitmargin: root@profitmargin:~# gluster volume info Volume Name: uploads Type: Distribute Status: Started Number of Bricks:...
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0answers
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Apache 2.2 fails with “unable to write 'random state'” with 2048-bit RSA key (1024-bit works fine)

I'm usually pretty good with Apache and OpenSSL, but this one has me completely baffled. I'm running Apache 2.2.22 and OpenSSL 1.0.1 on a Ubuntu 12.04 LTS Server. I have an IP-based virtual host ...
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476 views

Courier MYSQL_QUOTA_FIELD isn't working

In /etc/courier/authmysqlrc, I have MYSQL_QUOTA_FIELD CONCAT(quota, 'S') But connecting to the account via RoundCube or Thunderbird with the Display Quota plugin shows an unlimited/unknown quota. ...
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1answer
2k views

Cannot find network subsystem in cgroup on Ubuntu 12.04 LTS

I'm trying to use cgroups to limit a process's network bandwidth, as described in this answer. However, I am unable to find the "files" they refer to. I am using Ubuntu 12.04 LTS with cgroup-bin ...
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1answer
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Ubuntu “No space left on device” for /home, df shows 100% full, ds shows much, much less [duplicate]

Possible Duplicate: Linux different size for df and du for root partition On an Ubuntu 12.04 server, normal users can no longer create or add to files in /home, encountering a "No space left ...
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1answer
851 views

Tuning Postgresql on a 16GB Linode VPS

I'm running a dedicated PostgreSQL on a 16GB Linode (Ubuntu 12.04 32bit). I've tried using pgtune, but I'll run into shared memory errors. I.e. The PostgreSQL server failed to start. Please check the ...
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4answers
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Restarting MongoDB automatically if it crashes

I am running MongoDB on an Ubuntu server. It's using an upstart script to start mongod when the machine boots. I noticed that if the process crashes, it doesn't get restarted. How can I make sure ...
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2answers
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Low on space in /run

On Ubuntu Precise, I'm low on space in /run: admin@foo:~$ df -h Filesystem Size Used Avail Use% Mounted on /dev/sda1 19G 6.6G 12G 38% / udev 10M 8.0K 10M 1% /dev ...
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1answer
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nginx 403 Forbidden Error hosting in User Home Directory

I've installed nginx 1.1.19 on Ubuntu 12.04 on my local machine and kept the default /etc/nginx/nginx.conf except for changing the user directive. /etc/nginx/nginx.conf user nginx www-data; ...
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4answers
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after enabling mod ssl apache stops listening on port 80

I have an ubuntu 12.04 server with zend server CE installed. I now wanted to enable https but after the first steps according to the documentation, 'a2enmod ssl' and 'apache service restart', apache ...
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1answer
386 views

Programmatically adding two lines to crontab

I'm trying to add two lines to the root crontab when building an AWS instance. I have a set of commands that are part of the "user data". These commands are run as root when creating the instance. I ...
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x2go arrow key is not working properly

I have installed ubuntu 12.04.1 and x2goclient on it. when connetc to a x2goserver (ubuntu 12.04.1) the arrow keys didnt work properly e.g: down key works like Enter Did anyone have this problem, ...