Sebastian Mogilowskis Blog

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Adding an additional local storage to an existing XENServer

Add the new physical device “/dev/sdb” as second local storage to an existing Citrix XENServer installation:

(Note: I use XENServer 5.6)

xe sr-create content-type="local SR" host-uuid=(uuid of your xenserver host) type=(ext or lvm) device-config:device=/dev/sdb shared=false name-label="Second local storage"

The command returns the UUID of your new storage repository (SR).

Example:

xe sr-create content-type="local SR" host-uuid=d06d7c86-08af-4f87-9188-bd287daac20b type=lvm device-config:device=/dev/sdb shared=false name-label="Second local storage"
6b9fe5d2-bf6c-d776-dfb0-743f5b1f397c

If you want to set the new SR to the new default SR:

xe pool-param-set default-SR=[YOUR NEW SR UUID]  uuid=(uuid of your xenserver host)

Notes: You can use “pvdisplay” to lists all physical volumes.

[root@xen2 ~]# pvdisplay
  --- Physical volume ---
  PV Name               /dev/sdb
  VG Name               VG_XenStorage-6b9fe5d2-bf6c-d776-dfb0-743f5b1f397c
  PV Size               596.17 GB / not usable 7.79 MB
  Allocatable           yes
  PE Size (KByte)       4096
  Total PE              152617
  Free PE               150561
  Allocated PE          2056
  PV UUID               jKstcw-WSWy-EOWn-NUlq-fdM6-SwEC-eHwJSL

  --- Physical volume ---
  PV Name               /dev/sda3
  VG Name               VG_XenStorage-714f456f-7b1e-da9d-9022-153ebaec6cdc
  PV Size               588.17 GB / not usable 6.31 MB
  Allocatable           yes
  PE Size (KByte)       4096
  Total PE              150568
  Free PE               145772
  Allocated PE          4796
  PV UUID               U0Docl-IzMr-L7s0-nGCA-hTyQ-sHdk-2lVtJ2

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How to Use VNC to access VMware Servers

Edit the “.vmx” file of your virtual machine and add this lines:

RemoteDisplay.vnc.enabled = "TRUE"
RemoteDisplay.vnc.port = "5900"
RemoteDisplay.vnc.password = "YOUR_PASSWORD"

Note: Use a different port for each virtual machine.

Links:

* http://kb.vmware.com/selfservice/microsites/search.do?cmd=displayKC&externalId=1246

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Firmware Update HP Procurve

1. Download firmware

Download the latest firmware from http://www.hp.com/rnd/software/switches.htm

2. TFTP Server

Extract the downloaded file and use a TFTP Server http://www.mogilowski.net/lang/de-de/2010/10/25/setting-up-tftp-server-on-ubuntu

Example:

mv 2800-Software-I1077/I_* /srv/tftp/

3. Install new firmware

Create a telnet connection to the switch:

telnet SWITCH_IP

and copy the firmware to the switch:

copy tftp flash TFTP_SERVER_IP I_10_77.swi

Restart the switch with the new firmware with:

boot

Note: Replace “TFTP_SERVER_IP” with the IP of your TFTP server, “SWITCH_IP” with the IP of your switch and “I_10_77.swi” with your firmware version.

4. Test

Check if the new firmware is installed:

show version

5. Old versions

If your switch running a frimware lower than “I.07.68″ you frist have to patch with “I_07_68.swi”. After this update you can install “I_10_77.swi”. Both files are in the downloaded archive.

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Factory reset HP Procurve

1. Serial console

Connect your PC to the switch via serial console. Use “GtkTerm” for example on Ubuntu.

2. Reset the switch

Push “Reset” AND “Clear” on the front of the switch.
Release “Reset” Button.
If the “Test” LED blinks release the “Clear” button and wait.

2. Save the new configuration

After the switch rebooted type

setup

in the serial terminal. After saving your settings do

write memory
reload

Now the new settings are active and saved permanently.

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Setting up TFTP server on Ubuntu

Install a TFTP-Server on Ubuntu

1. Installation

sudo aptitude install atftpd

2. Configuration

sudo /etc/init.d/atftpd start

3. Files

Put all files for the TFTP server in the following directory:

/srv/tftp/
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VMware Server 2, Proxysvc SSL Handshake problems

Get this server in /var/log/vmware/hostd.log if you want to connect to your VMWare Server ?

Proxysvc SSL Handshake on client connection failed: SSL Exception

Open about:config in Firefox and change

security.enable.ssl2 from false into true

In some cases you have to kill the vmware-hostd process and restart the management deamon:

/etc/init.d/vmware-mgmt restart

Links

* http://planetvm.net/blog/?p=1087
* http://communities.vmware.com/thread/240209?tstart=0

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Extract images from .vob (photo cd) with Ubuntu or Debian

If you want to extract some images from a photo cd or dvd you can use transcode.

Installation

aptitude install transcode

Extract the images

transcode -x mpeg2 -i VTS_01_1.VOB -y im -F jpg -w 100

The parameters:

-F: picture format (jpg, gif, png)
-w: quality for jpeg and compression-level

Links

* http://dvd-slideshow.sourceforge.net/wiki/FAQ_Extract_Images_From_Vob

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Monitoring the Nagios process with monit

Monitoring the Nagios process with monit

Howto to install monit on Debian or Ubuntu to monitor the nagios process.

Installation

aptitude install monit

Configuration

Edit the monit configuration file /etc/monit/monitrc and make the following changes:

Generall settings

set daemon  120
set logfile syslog facility log_daemon
set mailserver localhost
set mail-format { from: monit@myserver.de }
set alert admin@myserver.de

Check the nagios process

check process nagios3 with pidfile /var/run/nagios3/nagios3.pid
        start program = "/etc/init.d/nagios3 start"
        stop  program = "/etc/init.d/nagios3 stop"
        if 3 restarts within 3 cycles then timeout

If nagios is not running, monit tries to start it 3 times. And send you an e-mail

Note: If you use Centreon the pid file is /var/lib/nagios3/nagios.lock . You have to replace it in the monit configuration file or change the “Lock File” value in your centreon configuration.

Change the following value in /etc/default/monit to:

startup=1

Start monit

/etc/init.d/monit start

Links

* M/Monit

* Monitor Debian servers with monit

* Nagios

* Centreon

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System Administrator Appreciation Day !!!!!

Happy Sysadmin Day !!!

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Adobe Coldfusion 9 – Debian 5.0 Lenny – Ubuntu 9.10 or 10.04

Install Apache2 webserver:

aptitude install apache2

Install required libraries:

aptitude install libstdc++5

Install coldfusion:

Download the coldfusion installation paket (Linux bin-file) from www.adobe.com. You can use the Trial Edition and upgrade later to the full version by enter the serial number in the administration webinterface

Make the downloaded file executeable and run the installer:

chmod +x ColdFusion_9_WWE_linux64.bin
./ColdFusion_9_WWE_linux64.bin

Answer the following questions:

PRESS  TO CONTINUE:
DO YOU ACCEPT THE TERMS OF THIS LICENSE AGREEMENT? (Y/N): Y
Install Type
------------

If you do not have a serial number, select either 30-day trial or Developer
Edition.

  ->1- Install new version of Adobe ColdFusion 9 with a serial number
    2- 30-day trial
    3- Developer Edition

Installation Choice: 2
Installer Configuration
-----------------------

What kind of installation do you want?

  ->1- Server configuration
    2- Enterprise Multiserver configuration
    3- J2EE configuration (EAR file)
    4- J2EE configuration (WAR file)

Choose one of the following options:: 1
Is Adobe ColdFusion 9 (Server Configuration) Installed?
-------------------------------------------------------

You cannot install the server configuration of Adobe ColdFusion 9 if it is already installed on this computer.

Is there already a server configuration of Adobe ColdFusion 9 installed?

    1- Yes
  ->2- No

ENTER THE NUMBER FOR YOUR CHOICE, OR PRESS  TO ACCEPT THE DEFAULT:: 2
Subcomponent installation
-------------------------

The following options are available for installation.

An option marked with "[X]" in front will be installed and an option with "[ ]"
will not.  Choosing an option will toggle it on or off

[X] 1) ColdFusion 9 Documentation
[X] 2) ColdFusion 9 Solr Services
[X] 3) ColdFusion 9 Search Services
[X] 4) Start ColdFusion on system init

    5) Continue with installation

Select an option: 5
Choose Install Folder
---------------------

Select the directory where you want to install Adobe ColdFusion 9.

Directory:

  Default Install Folder: /opt/coldfusion9

ENTER AN ABSOLUTE PATH, OR PRESS  TO ACCEPT THE DEFAULT
      : /opt/coldfusion

INSTALL FOLDER IS: /opt/coldfusion
   IS THIS CORRECT? (Y/N): Y
Earlier Versions of Adobe ColdFusion installed?
-----------------------------------------------

If you installed an earlier version of ColdFusion on this computer, you can migrate your settings to Adobe ColdFusion 9.

Is there an earlier version of ColdFusion installed on this computer (for example, ColdFusion 6 or ColdFusion MX 7)?

    1- Yes
  ->2- No

ENTER THE NUMBER FOR YOUR CHOICE, OR PRESS  TO ACCEPT THE DEFAULT:: 2
Configure Web Servers
---------------------

Please configure your web server(s).  If you do not configure a web server the
built-in web server will be used on port 8500 or the next available port.

    1- Add Web Server Configuration
  ->2- Continue with installation

Choice: 1

****************************************************

  ->1- Apache
    2- Sun ONE Web Server (iPlanet)
    3- Cancel

What kind of web server are you configuring: 1

What directory contains your Apache configuration file (httpd.conf)? (For
   example, on Red Hat Linux it could be located in the /etc/httpd/conf
   directory if you installed from an rpm, or for SuSe Linux, it could be in
   /etc/apache2)

   Directory: /etc/apache2

****************************************************

Where is the Apache program binary file? (For example, on Red Hat Linux it
   could be /usr/sbin/httpd if you installed from an rpm, or for SuSE Linux it
   could be located at /usr/sbin/httpd2) If you have more than one instance of
   Apache on your computer, enter the binary file location for the Apache web
   server that will use ColdFusion. (Note: this is not the Apache start and
   stop script.)

   File: /usr/sbin/apache2

****************************************************

Where is the control file that you use to start and stop the Apache web
   server? (For example, this could be /etc/init.d/httpd on Red Hat Linux if
   you installed from an rpm, /usr/sbin/apache2ctl on SuSe Linux, or it could
   be /usr/local/apache/bin/apachectl on hand-compiled versions.)

   File: /etc/init.d/apache2

****************************************************

Please configure your web server(s).  If you do not configure a web server the
built-in web server will be used on port 8500 or the next available port.

    1- Add Web Server Configuration
    2- Remove Web Server Configuration
    3- Edit:Apache : /etc/apache2
  ->4- Continue with installation

Choice: 4
Choose Adobe ColdFusion 9 Administrator Location
------------------------------------------------

Select the location of the web root for Adobe ColdFusion 9. This is where the installer places the Adobe ColdFusion 9 Administrator.

This directory must be the web root for one of the websites to be configured for use with Adobe ColdFusion 9.

Directory: (DEFAULT: /etc/htdocs): /var/www
Runtime User
------------

Enter the name of the runtime user.   This user must already exist on the system.

User Name: (DEFAULT: nobody):
Configure ColdFusion with OpenOffice
------------------------------------

Configuring OpenOffice installation with ColdFusion will enable Office documents to be processing using OpenOffice. If OpenOffice is not configured ColdFusion will not be able to convert some Microsoft Office Documents to PDF. Check the documentation for more details.

    1- Configure ColdFusion with local Openoffice installation
  ->2- Skip

ENTER THE NUMBER FOR YOUR CHOICE, OR PRESS  TO ACCEPT THE DEFAULT:: 2
Administrator Password
----------------------

Enter the password that you will use to restrict access to the ColdFusion
Administrator.

This field is required.

Password:
Confirm Password:
Enable RDS
----------

The ColdFusion Remote Development Service (RDS) lets developers using Adobe
tools remotely connect to this server for development purposes. RDS is required
for Line Debugging, Report Builder, and Dreamweaver Extensions.

If this is a production server, Adobe recommends that you disable RDS.
Note, however, that disabling RDS also disables debugging, the directory
browsing applets in the ColdFusion Administrator and some of the functionality
in the Report Builder.

Enable RDS  (Y/N): Y
Password:
Confirm Password:
Installation Confirmation
-------------------------

Installation Type:
  Server configuration

Licensing:
  30-day trial

Installation Directories:
  Product: /opt/coldfusion
  Web root: /var/www

Server Information:
  Web Server: Apache (/etc/apache2)
  Port:
  Search Services: installed
  ColdFusion Solr Search Services: installed
  Documentation: installed
  RDS: enabled

Disk Space Information (for Installation Target):
  Required: 992,437,542 bytes
  Available: 4,799,873,024 bytes

PRESS  TO CONTINUE:
Installing...
-------------

 [==================|==================|==================|==================]
 [------------------|------------------|------------------|------------------]

===============================================================================
Installation Complete
---------------------

You have successfully completed the first step in installing Adobe ColdFusion
9.

To continue with your installation, go to /opt/coldfusion/bin and type
"./coldfusion start" to start your server.

Once the server, is started log in to the Configuration Wizard at

http://[machinename]/CFIDE/administrator/index.cfm

Press Enter to exit the installer:

Start coldfusion:

/opt/coldfusion/bin/coldfusion start

Coldfusion now install the connector for the Apache2 webserver (/etc/apache2/httpd.conf). This connector forwards the scripts to the coldfusion server.

Start coldfusion on system start:

cp /opt/coldfusion/bin/coldfusion /etc/init.d
update-rc.d coldfusion defaults

Finish installation:

To finish the installation, open the coldfusion administrator with your browser.

http://SERVERNAME/CFIDE/administrator/index.cfm

Note:

You can use this howto to install Adobe Coldfusion 8, too. All installation steps are the same.

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