You will need:

• ubuntu 10.04 LTS
• zimbra 7.1.4 installed
• ssh access to zimbra box (Putty)
• scp access to zimbra box (winscp)
• some common sense

my zimbra 7.1.4 GA Release was running on ubuntu 10.0.4 LTS

The very first zimbra store folder usually belongs to the admin so we need the next* incremented mailbox store id.
this is an example zimbra store for admin:

/opt/zimbra/store/0/1/msg/1

Create a user account that will hold all the emails in zimbra admin panel, then send one email somewhere so zimbra would create a store folder for the account.

Once i have sent one email form the user who will have all the emails imported, zimbra created this store:

/opt/zimbra/store/0/13/msg/0

now we use SCP to copy all the messages to /opt/zimbra/store/0/13/msg/0 , after the copying has finished it might be a good idea to give zimbra full access to these emails.

cd /opt/zimbra/store/0/13/msg/0

sudo chown -R zimbra.zimbra

now we create a folder in zimbra for the user to keep the recovered emails, we will do this in the via putty/ssh.
start zimbra admin

/opt/zimbra/bin/zmmailbox -zadmin

select the user account that will receive all the imported mail

selectMailbox goofy@funkyemailaddress.com

createfolder /Recovery

now we exit zimbra cmd with a Ctrl + C

cd /opt/zimbra/

to begin import

/opt/zimbra/bin/zmmailbox -z -m goofy@funkyemailaddress.com addMessage /Recovery store/0/3/msg/*

if while importing you receive an error about the emails being too large, we increase the size of email messages.

/opt/zimbra/bin/zmprov -z mcf zimbraFileUploadMaxSize 41943040

/opt/zimbra/bin/zmprov -z mcf zimbraMtaMaxMessageSize 41943040

 

Well, instead of developing telepathic abilities, you can use DD an open source piece of software that will list the volumes and funny windows name in a comfortable – easy to digest manner.

1. Download DD (at the time of writing I have downloaded dd-0.6beta3.zip)
2. Start CMD and find the extracted executable of DD.
3. OR copy dd.exe to your “c:\windows\system32“ directory – or where ever your systemroot/windows system files are stored.
4. When you are in CMD type “dd --list“ to get a list of all the volumes/hard disks/storage devices.

Notice the letters below the \\?\Device\HarddiskVolume10

Antenna simulation, this is actually more interesting and fun than it sounds. Radio is complicated, I am not proficient enough at physics to teach the theory or explain why radio is the way it is.

What I will try to do is show what I have done so far and what works and where I failed.
Before you even consider making antennas, learn to solder. Now we need to get some proper cables for wireless.

Do not buy RG-58 coax cable, it’s very lossy and rigid, it also has a very low cutoff frequency of just 3Ghz.
Do buy LMR-195,200, 240, or any of the LMR range cables.

Here is some information about RG58 and LMR 200 the replacement for RG58.

RG-58 Attenuation (source www.rfsworld.com )
Maximum Frequency, GHz 3
Attenuation,
MHz		dB/100 m	dB/100 ft.
30 		8.5 		2.6
50 		10.9 		3.3
100 		15.6 		4.8
200 		24.0 		7.3
450 		36.2 		11.0
800 		50.0 		15.2
1000 		61.0 		18.6
1800 		92.0 		28.0
2000 		100.0 		30.5
2400 		116.0 		35.4
LMR 195 (source TIMES MICROWAVE SYSTEMS)
Maximum Frequency, GHz 41
Attenuation,
MHz		dB/100 m	dB/100 ft.
30 		6.5 		2.0
50 		8.4 		2.5
220		17.7		5.4
450 		25.5 		7.8
900		36.5		11.1
1800 		52.5 		16.0
2000 		55.4 		16.9
2500 		62.4  		19.0
5800		98.1		29.9

CABLE LOSS CALCULATOR

http://www.ocarc.ca/coax.htm

Belden 8240 (RG-58)
10M Cable for 2.4 Ghz (wireless)
Loss 8.464
Power in 100 W
Power out 14.244

TMS LMR-200
10M Cable for 2.4 Ghz (wireless)
Loss 5.421
Power in 100 W
Power out 28.701

http://binarywolf.com/249/connectors.htm#null
subtract about 1/4 dB loss per connector

Buying LMR cable & other wireless bits in UK:

MS Distribution << the only store I can recommend, great service and good products.

http://uk.wifi-link.com

http://wifigear.co.uk

More Soon..

This allows domain users to RDP into their workstations, this uses workstation RDP and NOT terminal server license connections.
You will need:

W2K3 > with ad configured and installed.
WXP
PSexec

Create a global security group in your domain called “RDP-Users”, add users from your domain to this group. These users will be able to login to desktop computers you choose.

Now add the “RDP-Users” group to each desktop computer you want users to RDP into.

Start > run > cmd
psexec \\COMPUTER01 -u domain.lan\admin -p password net localgroup "remote desktop users" domain.lan\RDP-Users /add

above adds the “rdp-users” group to a computer in the domain called COMPUTER01.

This can be done for all the computers on your domain, this allows users who are in the “RDP-Users” group to RDP into their computers.

So all you have to do now is add users to “RDP-Users” group ON YOUR DOMAIN CONTROLLER / Active Directory and that’s it you’re done. No messing about!

To add the domain.lan\RDP-Users group to a list of computers and speed things up do this.

Start > run > cmd
Net view > c:\rdpcomputers.txt