Ubuntu 12.04 Joomla 3

I recently setup an Ubuntu server with Joomla 3.  I used the instructions found here with a few modifications.  I did not want the joomla site to be under the /joomla subdirectory so I skipped the first three commands under step 2.  The steps I used are as follows:

1. sudo apt-get install lamp-server^

   mysql -u root -p

   CREATE DATABASE dbjoomla;

   CREATE USER joomlauser;

   (Change <password> to the password of your choice)
   

   SET PASSWORD FOR joomlauser = PASSWORD("<password>");

   GRANT ALL PRIVILEGES ON dbjoomla.* TO joomlauser@localhost IDENTIFIED BY '<password>';

   FLUSH PRIVILEGES;

   exit

   wget http://joomlacode.org/gf/download/frsrelease/17965/78414/Joomla_3.0.3-Stable-Full_Package.zip

   sudo unzip -q Joomla_3.0.1-Stable-Full_Package.zip -d /var/www

   You will want to remove the index.html that exists in /var/www by default
   

   sudo chown -R www-data.www-data /var/www

   Install joomla 3.0 from a browser by typing http://[hostname]

Locale error

August 8, 2012

I had been getting an error on some Ubuntu servers when using apt:

locale: Cannot set LC_CTYPE to default locale: No such file or directory       

locale: Cannot set LC_MESSAGES to default locale: No such file or directory

locale: Cannot set LC_ALL to default locale: No such file or directory             

After some googling I found a solution:

localedef -v -c -i en_US -f UTF-8 en_US.UTF-8                                            

EDIT:  This occurs when I setup Ubuntu 12.04 servers using an openvz image that I downloaded (I don't remember from where).

 

Expand Proxmox VM

These are the steps I took to expand the hard drive of a Windows 2003 server running on Proxmox
I found these steps here.

1. Shutdown server
2. Create backup
3. Expand disk in my case it was to 60GB which is 64424509440 bytes which you divide by the bit size for the "seek" option (125829120):

~# cd /var/lib/vz/images/101
~# dd if=/dev/zero of=vm-101-disk-1.raw bs=512 count=0 seek=125829120

4. Restart pvedaemon:

~# /etc/init.d/pvedaemon restart

5. Add GParted live CD to virtual CD drive and boot server
6. Resize NTFS partition with GParted interface
7. Reboot server (Windows will run a constistency check because of the new disk size)

Glassfish 3.1.2 on Ubuntu 11.10

These are the steps I took to install Glassfish 3.1.2 on Ubuntu 11.10.

I should point out that I used a Proxmox KVM virtual server for this.  I first tried an OpenVZ virtual server but kept running into an error: "There is a process already using the admin port 4848 -- it probably is another instance of a GlassFish server."  After some googling I decided this error had something to do with the networking which is significantly different on OpenVZ than KVM so I abandoned the OpenVZ container and created a KVM virtual host.

These steps are a combination of two other guides in order to provide an internal Glassfish server that is password protected (here and here).

Before I began I installed Ubuntu 11.10 server (64-bit) on the Proxmox KVM virtual machine and updated to the latest available updates then backed-up the virtual machine.

1. Install Java (I chose the natively available version of Java, openjdk):

~# sudo apt-get install openjdk-7-jdk

2. Install the unzip utility (not included by default in Ubuntu 11.10):

~# sudo apt-get install unzip

3. Create user and group to install and run Glassfish (I chose glassfish and glassfishadm):

~# sudo adduser --home /home/glassfish --system --shell /bin/bash glassfish
~# sudo groupadd glassfishadm
~# sudo usermod -a -G glassfishadm glassfish

4. Change to glassfish user:

~# sudo su - glassfish

5. Get Glassfish zip:

~# wget http://download.java.net/glassfish/3.1.1/release/glassfish-3.1.1.zip

6. Unzip glassfish and move it to root of glassfish user home folder:

~# unzip glassfish-3.1.2.zip
~# mv glassfish3/* .
~# rm -r glassfish3
~# rm glassfish-3.1.2.zip

7. Change owner and group of entire folder:

~# chown -R glassfish *
~# chgrp -R glassfishadm *

8. Exit glassfish user:

~# exit

9. Create script to start and stop Glassfish server at /etc/init.d/glassfish.  This script will use the glassfish user to start and stop the Glassfish instance so that it does not run as root:

#!/bin/bash

case "$1" in
start)
    su - glassfish -c "/home/glassfish/bin/asadmin start-domain domain1"
    ;;
stop)
    su - glassfish -c "/home/glassfish/bin/asadmin stop-domain domain1"
    ;;
restart)
    su - glassfish -c "/home/glassfish/bin/asadmin stop-domain domain1"
    su - glassfish -c "/home/glassfish/bin/asadmin start-domain domain1"
    ;;
*)
    echo "usage: $0 {start|stop|restart}"
    ;;

esac

exit 0

10. Set script to run at boot:

~# sudo chmod u+x /etc/init.d/glassfish
~# sudo update-rc.d glassfish defaults

11. Set admin password (default password for admin is blank):

~# sudo su - glassfish -c "/home/glassfish/bin/asadmin --user admin change-admin-password"
Enter admin password> _
Enter new admin password>
Enter new admin password again>
Command change-admin-password executed successfully.

12. Set security on Glassfish:

~# sudo su - glassfish -c "/home/glassfish/bin/asadmin enable-secure-admin"

13. Start the server:

~# sudo /etc/init.d/glassfish start

Redmine on Ubuntu 11.04 using MySQL

I decided to give Redmine a try and ran into a few issues using most of the guides out there to get it installed.  The guide that worked is below but be sure to install your mysql server (sudo apt-get install mysql-server) first.

http://foxfoo.com/howto-install-redmine-on-ubuntu-1104.html

Resizing with LVM

I am running a proxmox server with several virtual machines and noticed that I have more disk space configured on the virtual machines then I have on the partition they are running on. Here are the steps I took to increase the size of the ext3 partition hosting the vms.

1. View the mount points to determine what logical volume the vms are on

~# mount
/dev/pve/root on / type ext3 (rw,errors=remount-ro)
tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
procbususb on /proc/bus/usb type usbfs (rw)
udev on /dev type tmpfs (rw,mode=0755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
/dev/mapper/pve-data on /var/lib/vz type ext3 (rw)
/dev/cciss/c0d0p1 on /boot type ext3 (rw)


2. View the logical volume to determine what volume group it is on:

~# lvdisplay /dev/mapper/pve-data
  --- Logical volume ---
  LV Name                /dev/pve/data
  VG Name                pve


3. View the volume group to be sure there is room for expansion:

~# vgdisplay pve
  --- Volume group ---
  VG Name               pve
  System ID
  Format                lvm2
  Metadata Areas        2
  Metadata Sequence No  2236
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                3
  Open LV               3
  Max PV                0
  Cur PV                2
  Act PV                2
  VG Size               477.93 GB
  PE Size               4.00 MB
  Total PE              122351
  Alloc PE / Size       44928 / 175.50 GB
  Free  PE / Size       77423 / 302.43 GB
  VG UUID               ThGaW0-KPoF-ZA3V-jgxE-zv6d-jaMY-Pc8Y1W

4. Extend the logical volume (-L flag as used below allows you to specify the new size of the volume):

~# lvextend -L150G /dev/pve/data
  Extending logical volume root to 150.00 GB
  Logical volume root successfully resized

5. Resize the ext3 partition

~# resize2fs /dev/pve/data
resize2fs 1.41.3 (12-Oct-2008)
Filesystem at /dev/pve/data is mounted on /var/lib/vz; on-line resizing required
old desc_blocks = 4, new_desc_blocks = 10
Performing an on-line resize of /dev/pve/data to 39321600 (4k) blocks.
The filesystem on /dev/pve/data is now 39321600 blocks long.

Pretty easy.

Create copy of VM on Proxmox

1. Ssh into the Proxmox server as root.
2. Run "vzdump" with desired VMID.

$vzdump 101

3. Run "qmrestore" with unused VMID. Your dump file should be located in /var/lib/vz/dump.

$qmrestore /var/lib/vz/dump/vzdump-qemu-101-2011_01_10-11_13_30.tar 102

I tested this with a Ubuntu server 10.10 VM.  From the Proxmox console I deleted the network device and recreated it to be sure it had a unique MAC address (not sure if that was necessary).  I started the new VM, logged in, and changed the hostname and some values for the apache server.

---

**UPDATE (02/09/2011)**
I noticed that when running the this command I would see:

INFO: mode failure - unable to dump into snapshot (use option --dumpdir)

After some intrepid googling I discovered this was because the dump was being created on the same lvm group vzdump had to suspend the vm to do the backup.  To avoid this (since I was backing up a live webserver) I mounted a windows share (on a domain) and pointed the dump to there.

1. Mount the windows share to the /mnt/share directory (be sure that directory exists)

$mount -t smbfs //server/share /mnt/share -o username=domainuser

2. Run vzdump with the --dumpdir option

$vzdump --dumpdir /mnt/share/dumps 101