BraveZone

Julho 9, 2014

Error: “Access is Denied” during USB Driver Installation

Filed under: Windows — Tags: , — BraveSoul @ 11:04 am

Ir ao registo para esta chave:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\USBSTOR e dar permissões ao atual utilizador de full control.

Janeiro 29, 2014

Reparar NTLDR is missing

Filed under: Windows — BraveSoul @ 12:56 pm

Entrar na consola do windows XP e usar os seguintes comandos:

copy d:\i386\ntldr c:\

copy d:\i386\ntdetect.com c:\

bootcfg /rebuild

Usar a opção /fastdetect.

fixboot e fixmbr caso não funcione.

Fevereiro 4, 2013

Known “safe” DNS Servers

Filed under: Geral — BraveSoul @ 4:53 pm

Some known DNS servers that filter improper content and make it a bit more safer to navigate.

Open DNS family:

208.67.222.123

208.67.220.123

Norton Con Safe 1

198.153.192.60

198.153.194.60

Norton Con Safe 2

198.153.192.50

198.153.194.50

MetaCert DNS

184.169.223.35

BTW here goes google ones:

8.8.8.8

8.8.4.4

Novembro 9, 2012

Outlook and NK2

Filed under: Office — Tags: — BraveSoul @ 12:52 pm

A common mistake when people back up outlook and move it to another PC is thinking there´s no way to save the history of typed emails which like 90% of people rely and some get quite upset by loosing them.  But that´s far from truth so all the history is saved to this little file with the extension .nk2 which gets stored in your %userprofile%\user\application data\microsoft\outlook\ , dont forget to keep the same name.

There´s also a tool to export the history of what´s in that file in here:

http://www.nirsoft.net/utils/outlook_nk2_autocomplete.html

 

PFBackup and Office 2010

Filed under: Office — Tags: — BraveSoul @ 12:43 pm

PFBackup from Microsoft is quite a nice utility when it comes to backing up your outlook without much trouble, but since Office 2010 i think, it started doing absolutely nothing when we tell the program to backup up, it just ignores the whole process, so here it goes the wonderful fix, for every problem there´s always a fix right? or not🙂

HKEY_CURRENT_USER\Software\Microsoft\Office\Outlook\Addins\Microsoft.OutlookBackup.1
Value name: RequireShutdownNotification
Value type: REG_DWORD
Value: 1

 

Winsock Reset

Filed under: Windows — Tags: — BraveSoul @ 12:39 pm

“NETSH WINSOCK RESET”

Life saviour command to use when apparently all ok with your network card, but you have no network, no nothing.

Cannot open outlook windows

Filed under: Office — Tags: — BraveSoul @ 12:36 pm

When that error message appears and happened with me quite some times in clients just run this key in cmd:

Outlook.exe /resetnavpane

easy and simple.

Windows Variables

Filed under: Windows — Tags: — BraveSoul @ 12:32 pm

Some useful variables for any windows OS:

Variable = Typical value (May vary, depending on system)
%ALLUSERSPROFILE% = C:\Documents and Settings\All Users
%APPDATA% = C:\Documents and Settings\{username}\Application Data
%COMPUTERNAME% {computername}
%COMSPEC% = C:\Windows\System32\cmd.exe
%HOMEDRIVE% = C:
%HOMEPATH% = \Documents and Settings\{username}
%PATH% = C:\Windows\System32\;C:\Windows\;C:\Windows\System32\Wbem
%PATHEXT% .COM; .EXE; .BAT; .CMD; .VBS; .VBE; .JS ; .WSF: .WSH
%PROGRAMFILES% = Directory containing program files, usually C:\Program Files
%PROMPT% = Code for current command prompt format. Code is usually $P$G
%SYSTEMDRIVE% The drive containing the Windows XP root directory, usually C:
%SYSTEMROOT% = The Windows XP root directory, usually C:\Windows
%TEMP% and %TMP% = C:\DOCUME~1\{username}\LOCALS~1\Temp
%USERNAME% {username}
%USERPROFILE% = C:\Documents and Settings\{username}
%WINDIR% = C:\Windows

Windows Server Time Skewed

Filed under: Windows Server — Tags: — BraveSoul @ 12:28 pm

It will happen once and awhile one of your client computers cant log to your windows server because it isnt synchronized with it, so here it goes the command to run in the workstation:

net time \\yourserver /set /yes

Open Relay Test

Filed under: Microsoft Exchange — Tags: — BraveSoul @ 12:20 pm
Open Relay Test

One of the worst crimes that you can commit with an Exchange server connected to the Internet is become and open relay. This allows anyone to send email to anyone else through your server.

Check Whether the Exchange Server is an Open SMTP Relay using a Telnet Test

A Telnet test involves establishing a Telnet session from a computer that is not located on the local network to the external (public) IP address of the Exchange server. You need to carry out the test from a machine at home, or from another office. Doing the test from a machine on your own network will produce useless results.

  1. Start a command prompt.
    Either click start, run and type CMD
    or Choose Command Prompt from Start, Programs, Accessories, Command Prompt
  2. Type “telnet” (minus quotes) and press enter.
  3. At the Telnet prompt, type

    set localecho

    (minus quotes) and press enter. This lets you see what is going on.

  4. Still in the telnet prompt, enter the following command and then press enter

    open external-ip 25

    where external-ip is your external IP address eg:

    open 111.222.333.444 25

  5. You should get a response back similar to the following:

    220 mail.server.domain Microsoft ESMTP MAIL Service, Version: 6.0.2790.0 Ready at

  6. Type the following command in to the telnet windows:

    ehlo testdomain.com

    and press enter (note “testdomain.com” can be anything that isn’t a domain that the Exchange server is responsible for.

  7. After pressing OK you should get a response back

    250 OK

  8. Type the following command in to the telnet window:

    mail from:address@testdomain.com

    and press enter (again where address@testdomain is an email address that is not on the Exchange server. Note the lack of space between from and the first part of the address).

  9. After pressing OK you should get a response back:

    250 2.1.0 address@testdomain.com….Sender OK

  10. Type the following command in to the telnet window:

    rcpt to:address@anotherdomain.com

    and then press enter (where address@anotherdomain.com is not either an address you use internally or the address you entered earlier as the from. Once again note the lack of space between to and the first part of the e-mail address).

  11. After pressing enter you will get one of two responses.
    If you get

    550 5.7.1 Unable to relay for address@anotherdomain.com

    then you are relay secure.
    However if you get

    250 2.1.5 address@anotherdomain.com

    Then you are an open relay.

What now?

Exchange 2003

There are a number of parts of the Exchange server that can make your Exchange server an open relay. On Exchange 2003 this is the Default SMTP Virtual Server and SMTP connectors. You need to check both to ensure that you haven’t configured them wrongly and turned your machine in to a spammers target.

Default SMTP Virtual Server

To check or correct the configuration of the Default SMTP Virtual Server:

  1. Start Exchange System manager (ESM)
  2. Expand Servers, <your server>, Protocols, SMTP.
  3. Right click on “Default SMTP Virtual Server” and choose Properties.
  4. Click on the “Access” Tab.
  5. There are four buttons, click on “Relay…” at the bottom.
  6. Ensure that “Only the list below” is enabled and the list is empty.
  7. If you don’t have users sending email through your email server with Outlook Express or another POP3 client then you can disable “Allow all users that successfully authenticate to relay regardless of the list above”.
  8. Apply/OK until all windows are closed.

SMTP Connectors

  1. Start ESM, Connectors.
  2. Right click on each SMTP Connector in turn and choose Properties.
  3. Click on the “Address Space” tab.
  4. If you have a “*” in the address list, check that “Allow messages to be relayed to these domains” is not enabled.
  5. Apply/OK until all windows are closed.

Once you have made the changes, repeat the telnet test above to ensure that you have closed everything.

Exchange 2007/Exchange 2010

With Exchange 2007 it is actually more difficult to turn the server in to an open relay. The server can be turned in to an open relay through Connectors and through the Accepted Domain configuration.

Connector Configuration

First thing is to check that you have not enabled “Externally Secured” on the Send and Receive Connectors that is exposed to the internet. If the server can be seen from the internet then that needs to be checked.

  1. Start Exchange Management Console (EMC).
  2. Expand Server Configuration, Hub Transport.
  3. Right click on each Receive Connector and choose Properties.
  4. Click on the tab “Authentication” and ensure that the Externally Secured option hasn’t been enabled.
  5. If you need to change any settings, restart the Microsoft Exchange Transport Service for the change to take effect.

For Send Connectors repeat the above process, but look in Organization Configuration, Hub Transport.

If you are using an Edge server then force an Edge Sync to take place using the command “Start-EdgeSynchronization”

Accepted Domains

The other setting that can turn the server in an open relay is Accepted Domains. Ensure that you haven’t set an Accepted domain as *, which turns the server in to an open relay. If you configured the Accepted Domain using the Management console then you should have received a warning about it turning the server in to an open relay.

  1. Start Exchange Management Console.
  2. Expand Organisation Configuration, Hub Transport.
  3. Click on the tab “Accepted Domains” and ensure that * is not listed. If it is, remove it.
  4. Restart the Microsoft Exchange Transport Service.

If you are using an Edge server, then force an Edge Sync to take place using the command “Start-EdgeSynchronization”.

Source: http://exchange.sembee.info/network/openrelaytest.asp

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