Build your own Dropbox using free software

I’ve been looking for Dropbox opensource alternatives. I wish to install my own linux server with a shared repository and clients accesing from windows, mac, ipad (IOS) and android devices.

I’ve been testing Sparkleshare, but there is no client for Windows XP and it hangs when there are changes in a big number of files at local repository.

Also I’ve plans to test syncany that seems to be in the good path but is not mature yet.

Now I will have a look at owncloud, that also has business releases with maintenance support plans.

Moving a virtual machine without vmotion in esx 3.5 and 4.x

 

When you move a virtual machine to a new datastore then the esx server shows it as inaccessible:

You can unregister and register the virtual machine again from the new location, but then you will need to do some other changes as fix ‘Virtual Machine Startup’ order, also Veeam backup treats this vms as new ones and backup and replica jobs will fail.

To avoid this problems you can do as follows:

bedb_log.ldf grows too much in BackupExec 11

If bedb.log.ldf file grows too much (20 GB or more) you can reduce it with the following procedure:
Open SQLserver Enterprise Manager an locate BEDB database:
 

How to backup and restore Veeambackup database

 

At Veeam forums you can find a .bat script that backups Veeambackup database I've made some changes to fit my own scenario:

GPMC in Windows 2008

Here you con find an article that explains how to install the Group Policy Management Console (GPMC) in Windows 2008

You can additionally download GPMC v2 from Microsoft's website here.

Here is a good article that explains how to use GPMC v2.

MDAEMON 554 Message is not RFC compliant; missing "Date" header

Here you can find the solution to this error in MDaemon mail server. It's a post from Jay Tolbert at lists.altn.com:
Go to Setup -> Default Domain & Servers, Servers, uncheck ...refuses
messages which are not RFC compliant. That will allow MDaemon to accept
the malformed messages.
To be RFC compliant a message requires a Date header, which you will get
if missing with the other switch you checked, and either a single From
or Sender header (see help for full requirements). If you want to make
sure messages have a From header, you can do it with a content filter
rule. Go to Security -> Content Filter, New Rule. Name it something
like 'Add missing From header'. Check 'If the FROM HEADER contains' on
the left. Click on 'contains specific strings' at the bottom, click on
'contains', change 'contains' to 'Does Not Exist', click OK, click OK.
On the right click 'ADD an extra HEADER 1 to message'. At the bottom
click on 'specify information'. Put in 'From' as the header name and
$Header:X-Envelope-From$ as the header value. Click OK. Click OK to
save the rule. The X-Envelope-From header is the from address given
during the SMTP transaction. Generally, it will match the From header
inside the message though there are several situations, like list
messages, where it may be different.

VMFS 3 maximum file size

This is the maximum file size in VMFS 3 depending on block size selected during filesystem creation.

iPad IPSec notes

Here are some notes relatives to IPSec connection to non CISCO routers from iPAD devices:

iSCSI disks rescan on vSphere 4.x

When you've lost your iSCSI disks on vSphere esx4, you can force a rescan of the vmhbaXX adapter from console, keep reading....

How to backup and restore Veeambackup database

 

At Veem forums you can find a .bat script that backups Veeambackup database I've made some changes to fit my own scenario:

Check if your mail server IP is blacklisted

If your mail server is blacklisted it not be able to send mails. There are several web pages that allows you to check this from one single click:
http://www.blacklistalert.org/
http://www.anonmails.de/blacklist.php?language=en

Netscreen - DDNS : Last response - not init

 

I've found this article is at http://www.fir3net.com/Juniper-Netscreen/netscreen-ddns-last-response-not-init.html it explains how to resolve the 'not init' issue while attempting to start DynDNS client on a Netscreen

VMware ESX 3.5 Update Manager Failure

This is a post from Roger Birong, esxupdate also fails from console not only from ssh:
If you are suddenly (June 2011) unable to Scan for Updates or Remediate VMware ESX 3.5 Hosts, you may be without

Block size limitations of a VMFS datastore

Here you can find a VMware's Knowledge Base article related to VMFS datastores:

VMFS Block Sizes

The block size on a VMFS datastore defines two things:

Registro de inicio y cierre de sesión en un W2003 con active directory

Para registrar el inicio y cierre de sesión en un entorno con windows 2003 y donde los puestos inician sesión validándose contra active directory hay que modificar la directiva de grupo del dominio, asique abre el programa Usuarios y equipos de Active Directory y en el dominio que tengas creado pincha con el botón de la derecha del ratón y selecciona propiedades:

Loading a saved configuration file to a new D-Link DGS-3627 switch

Connect with a browser to the default switch IP (10.90.90.90), the default user and password is blank, so press the OK button:

Performing a rescan of the storage on vSphere

Here you can find a VMware's Knowledge Base article that explains how to perform a rescan of the storage on vSphere.

Reordering vmnics on vSphere 4.x

Today I've had an issue with a vSphere installation (esx 4.0 update 2). I've installed the esx server using a kikstart config file (ks.cfg) as usual, I've only one nic (integrated in the MoBo) so the service console (vswif0) was linked to my first nic (vmnic0) as usual.

Configuring networking from the ESX service console

Here you can find this VMware Knowledge Base that explains how to configure networking from the ESX service console command line.

Details

This article provides steps to configure networking for an ESX host when you only have access to the service console.

Solution

Linux rescan SCSI bus

If you add a new disk to a Linux VM system and you don't want to reboot it, you must rescan the SCSI bus to detect it.

Here you can find a bash script that will do this task for you:

http://www.garloff.de/kurt/linux/

Thanks to garloff.