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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Cobbler Ubuntu 12.04 netcfg failure

I am using Cobbler to PXE boot cluster nodes and install Ubuntu 12.04. I have made Ubuntu 14.04 work with Cobbler and the cluster but Ubuntu 12.04 is showing weird errors at the start of the OS ...
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28 views

VirtualBox: error NS_ERROR_FAILURE (0x80004005) when starting a newly created VM

I'm trying to create a new VirtualBox, but am getting NS_ERROR_FAILURE (0x80004005). Googling suggested it's because of changes in the VM, or of certain ISOs. However - this is first time I install, ...
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1answer
35 views

Apache 2.2 / MySQL Overload of Ubuntu Server

I've run into a problem and I just can't seem to figure out how to solve it; I have a regular Ubuntu 12.04 Server with apache 2.2 running a website. Every now and then the server overloads and starts ...
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1answer
34 views

Postfix aliases db: No such file or directory

I am trying to use a postfix on a local Ubuntu 12.04 with ZoneMinder. I installed from Ubuntu Desktop the Postfix package and its dependency. Now if I try to send email with following command it ...
7
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2answers
376 views

Prevent Apache from starting after apt-get install

When I apt-get install apache2 the server starts automatically when install completes, and the default Apache configuration makes everything in /var/www/ accessible to the client side. Thus if I have ...
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2answers
35 views

Ubuntu 12.04 unmet dependency error

I am getting the following unmet dependency issue with Ubuntu 12.04 this happened after the /boot got filled up and had to remove some of the old kernel packages manually. There are no external ...
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12 views

ubuntu 12.04 ruby1.8 depends on libreadline5 which does not exist any more?

I just built a new 12.04 ubuntu box and tried to install puppet package. This failed because it could not load ruby1.8. After some fiddling around I tracked the issue down to the fact that the ...
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2answers
44 views

Server migration and DNS propagation

We're moving our store to a new server with a new IP address and I'm trying to determine if there is a way to minimize the number of users who still "see" our old site during DNS propagation. Right ...
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1answer
91 views

Ubuntu 12.04.5 is installing Apache 2.4 not 2.2

I have a VPS running Ubuntu 12.04.5, lsb_release -a output: No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 12.04.5 LTS Release: 12.04 Codename: precise ...
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1answer
109 views

Iptables block layer 7 DDoS attacks

Recently I've been experiencing lots of layer 7 ddos attacks to my website. Specifically an HTTP GET request flood on the index page. (~20k r/s), my server is at OVH, so it's not overloading the pipe, ...
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2answers
270 views

How to install build-essential on Ubuntu 12.04 - gcc and g++ dependency issues

I have just installed Ubuntu server 12.04 LTS. I am trying to install build-essential package; however, when I try to install it I receive the following error: Some packages could not be installed. ...
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38 views

Need to add new hdd on existing ubuntu server 12.04 [closed]

I'm having Ubuntu server 12.04LTS as my local with 500GB HDD. Now I added one more 500GB with this. But, I can't able to find the new one in /media. While trying with sudo fdisk -l I got this. ...
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53 views

sshd croaks daily with “invalid open call: O_CREAT without mode”

One of my servers has daily issues. When I log in via SSH or SFTP, I get the error below. When restoring it via a remote console, I need to purge and reinstall openssh-server. This is not enough, I ...
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0answers
44 views

TLS server extension

We have an Ubuntu 12.04 server with Tomcat and Nginx webservers on it to serve two different portals. Tomcat is serving on 443 port and Nginx is serving on 8443 port. And this server got latest ...
2
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1answer
58 views

Can't run binary executable on Ubuntu 12.04

I get the following error: ./cataclysm: command not found when trying to run this executable on a Linux server over SSH. when I run ldd cataclysm, I get: linux-gate.so.1 => (0xf7759000) ...
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0answers
29 views

how to filter sar -d disk output tidily

sar -D output-I would like a suitable command to run alongside stress -hdd but this is the output which sar -D 1 10 gives. I have filtered it using both awk |'NR > 1 {printf ...
0
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1answer
53 views

Apache starts up with high memory usage. Why?

My apache is starting up with high memory usage right away. After a reboot or a restart I'm seeing these kinds of number top - 15:37:59 up 22 min, 1 user, load average: 0.12, 0.09, 0.12 Tasks: ...
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1answer
41 views

Import MySQL Database : No such file or directory

Im am trying to get the following script to import a database. Every time I run the script I get a mysql -u username -pmypassword my_database < /var/hostdata/databases/my_database.sql -bash: ...
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4answers
501 views

Permissions set to 555. How can another user modify the files? [duplicate]

I run an Ubuntu 12.04 x64 VPS with Vesta, and a site in PHP. It has been hacked several times with injected code that looks like this: <?php ...
8
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5answers
243 views

High load due to I/O wait in Ubuntu 12.04 on EC2 instance

I am using Ubuntu server 12.04 , having trouble finding cause of load, I have seen change in response time of server from past week after reading Linux Troubleshooting, Part I: High Load It seems ...
0
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1answer
25 views

Does auth.log store mysql log in attempts?

Im seeing a few root login entries in the auth.log in one of our database servers but I dont know if these are applications logging in to our database, or ssh log ins. FWIW We are rotating our ...
0
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1answer
165 views

Ubuntu Server 12.04: upgraded php to 5.4, now sites won't load

I just upgraded php on my Ubuntu Server 12.04 to 5.4 from 5.3, using the ppa:ondrej/php5-oldstable ppa but now my php-powered sites don't load (I just get a downloaded file). I've restarted apache2, ...
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1answer
196 views

Curl version on command line is different to PHP

I've got PHP version 5.5.21-1+deb.sury.org~precise+2 running with Apache2 under Ubuntu 12.04 When I run phpinfo() it shows the curl version as 7.22.0 When I run curl --version via the command line - ...
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1answer
612 views

Apache virtual host is being ignored in Vagrant box

The issue I'm having is that when I visit http://d7.subdomain.example.org from my host machine, it takes me to the default apache It Works page. I'm on a Mac host with a Ubuntu 12.04 Vagrant box with ...
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11 views

Apache2 on Ubuntu - Start external process on request?

I am using Apache2 on Ubuntu Server 14.04.01 LTS (i368). I would like to start an external process whenever a request comes in (The process started will actually get the request proxied to it.) I am ...
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1answer
59 views

How to migrate RAID-6 from 5 disks to 4 disks while increasing disk sizes

I am having a quite complex problem and while I found solutions to individual steps (and already applied some of them in different contexts), I am not quite sure on how to do the whole procedure ...
2
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0answers
983 views

“echo 0 > /proc/sys/kernel/hung_task_timeout_secs” disables this message

One of my server (Ubuntu 12.04, 16CPU, 32GB RAM) runs the app section of my website (Nginx 1.1.19, PHP5-FPM, Php 5.3.10, Symfony2 Web Framework) Suddenly, users started getting HTTP 5** Errors. When ...
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1answer
65 views

Make postfix trigger a php script using always_bcc

I have been having a VERY hard time with this, have searched everywhere, and in utter desperation am posting this question. I am using postfix and dovecot on ubuntu 12.04. I am trying very hard to ...
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2answers
283 views

How to Make a Self-Signed SSL Certificate which uses TLS?

After upgrading Apache and PHP to the latest version on Ubuntu 12.01 LTS the SSL sites on it became inaccessible, stating error, "ssl_error_no_cypher_overlap". I have tried generating a new ...
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86 views

ZFS on Linux denied access when accessing child dataset on NFS

This is on 12.04 LTS with the latest ZFS on Linux from the ppa. I have two a storage pool named data, and a dataset data/Other with different settings (e.g. compression). I set data to sharenfs and ...
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1answer
59 views

Ghost vulnerbilty - upgrade only affected packages

regarding GHOST vulnerbilty: How could I only upgrade affected packages which can be found like this (on ubuntu 12-04): lsof | grep libc | awk '{print $1}' | sort | uniq I´m looking for a way to ...
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2answers
73 views

Clean /boot on Ubuntu

When I boot my Ubuntu server, I have this warning message: => /boot is using 100.0% of 235MB And when I look into /boot, I have a lot of files which are dependent of the version of the kernel. ...
2
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1answer
180 views

Ubuntu 12.04.2 LTS Server - Randomly hangs with no logging

My server randomly hangs and becomes unresponsive without any logging (dmesg, syslog, kern.log, boot.log, and messages). I cannot predict when it is going to happen. Sometimes the server runs fine for ...
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41 views

ImageMagick convert to MPC command killed or silently exits

Im having peculiar problem with the "convert" command on Precise hosted on Linode. I am trying to convert a pdf to a memory persistent cache file *.mpc using the following command: $ convert -density ...
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2answers
344 views

How to set custom $_SERVER variable for PHP

I'm working on a PHP web app which ALSO has some command line tools. I need the command line tools to detect the environment so that they connect with the correct DB credentials etc. The web app does ...
0
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1answer
178 views

Warning :mounting fs with errors, running e2fsck is recommended

Linux server will hang and when I restart it will take around 2 hours to come up and resume normal operations. I checked the system log files and found mounting fs with errors, running e2fsck is ...
2
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1answer
33 views

Is /usr being touched before /etc/fstab-specified volumes get mounted?

I have extracted /usr to a LVM volume that gets mounted by /etc/fstab on an Ubuntu 12.04 box. Basically I ran out of space on / mountpoint and LVM wasn't installed when I got the box, so /dev/sda1 is ...
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3answers
55 views

NGINX Not showing my index.html - Stays default

server { listen 80 default_server; listen [::]:80 default_server ipv6only=on; root /var/www/apexnetwork.org/public_html/; index index.html index.htm; # Make site accessible from ...
1
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1answer
903 views

Fail to do apt-get update on Ubuntu 12.04 Precise

I recieve this error all the time when I try to do apt-get update so that can not install or remove software with apt Get:102 http://archive.ubuntu.com precise-updates/universe Translation-en ...
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1answer
68 views

Apache2 logs missing in ubuntu 12.04

My Ec2 instance configured with apache2 was running fine and all of a sudden web-server stopped serving pages. I checked all the logs but it didn't help or may i am missing something here. Below are ...
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0answers
55 views

Slow sudo and ssmtp (hosts file wrong?)

I'm running an Ubuntu Server 12.04.5 LTS and when I type sudo su it takes 30+ seconds to open the shell. Searching on internet, this problem seems related to the file /etc/hosts and /etc/hostname. ...
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0answers
57 views

Configuring quagga to report Openvpn VPN subnet

I'm trying to use quagga with RIP2 to route traffic through an openvpn server. At the moment I'm having trouble because it's reporting the VPN subnet (172.19.2.x) as just a single IP (172.19.2.1). ...
0
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0answers
73 views

Installation of Razor failed on Ubuntu

I have a Ubuntu Server 12.04.5 LTS, with SpamAssassin 3.3.2. I try to install Razor2 for SpamAssassin by following this tutorial. Razor version 1:2.85-4build1 is installed with the following command: ...
1
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1answer
86 views

How do iptables policies work?

I've added some basic rules: iptables -A INPUT -p tcp --dport 22 -j ACCEPT iptables -A INPUT -p tcp --dport 80 -j ACCEPT Then, command to close all other ports with: iptables -A INPUT -j DROP ...
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2answers
463 views

“sudo apt-get remove hadoop” is not removing package

I am trying to uninstall Cloudera Hadoop from my Ubuntu System. For this I tried sudo apt-get remove hadoop command but this command is failing with following message: ...
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157 views

Using an Ubuntu VPS as a firewall/router

I have a dedicated server running ubuntu 12.04 hosting several websites and other applications which require client IP's to be visible, however the main dedicated server does not have DDoS protection, ...
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2answers
583 views

Chef Installation Error - Error executing action `run` on resource

I am trying install chef (chef-server_11.0.4-1.ubuntu.12.04) on ubuntu 12.04.5 64 bit. After the installation, when I run "chef-server-ctl reconfigure" getting following error. let me know how to ...
0
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0answers
64 views

Creating a Remote Desktop Session from within an EC2 server, not to it

Ok, I'm having problems answering this because I can't figure out how to word it. Most questions about "remote desktop" and "ec2" focus on remoting into an ec2 instance, which isn't necessarily what I ...
0
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1answer
91 views

File Location of mysql startup script on Ubuntu

When we run a command as "service mysql start" [OR] "/etc/init.d/mysql start", The mysql daemon it starts. Who is providing the job mysql to start to those commands? What is the startup script file ...
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1answer
73 views

Qcow2 images growing far beyond what they should

I am using ubuntu 12.04 and have seen this: https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/1025244 Our qcow2 images are growing far beyond what they should... with some of them growing to as ...