Error : Contacting Server for Information

This happens when you have Outlook set to automatically download pictures from the Internet and when the web server hosting the image is slow or not available.

With newsletters from upcoming web services, this is more likely to be the case but it can also happen when an email contains an excessive amount of pictures or when you have a slow connection yourself.

Block, prompt and do not permit exception

To set your Automatic Download settings a bit more stricter go to:

• Outlook 2003
  Tools-> Options-> tab Security-> Change Automatic Download Settings…
• Outlook 2007
  Tools-> Trust Center…-> Automatic Download
• Outlook 2010 and Outlook 2013
  File-> Options-> Trust Center-> Trust Center Settings…-> Automatic Download

The safest configuration is as follows:

Don’t download pictures automatically in HTML e-mail messages or RSS items Permit downloads in e-mail messages from senders and to recipients defined in the Safe Sender and Safe Recipients Lists used by the Junk E-mail filter Permit downloads from websites in this security zone: Trusted Zone Permit downloads in RSS items Permit downloads in SharePoint Discussion Boards Warn me before downloading content when editing, forwarding, or replying to e-mail

Enabled Disabled   Disabled Disabled Disabled Enabled

How To Reset a Canon MX308 Ink Arbsober "'Check Printer 5B00"

Instructions :

1. • 1. Press and hold both the "Stop/Reset" and the "Power" buttons on your printer.
   • 2. Release the "Stop/Reset" button.
   • 3. Push the "Stop/Reset" button two times, while continuing to press the "Power" button.
   • 4. Release the "Power" button. Your printer is now in Service mode.
   • 5. Insert paper into the paper tray.
   • 6. Push the "Stop/Reset" button four times.
   • 7.Press the "Power" button to turn off the printer. The printer will print counter information about the ink absorber before powering off. The printer will now work normally.

Creating Cisco VLAN Using VTP

CONFIGURATION ON CORE SWITCH

CREATING VLAN DATABASE :



Switch>en

Switch#vlan database

Switch(vlan)#vlan 201 name Office_1st_Floor

VLAN 201 added:

    Name: Office_1st_Floor

Switch(vlan)#vlan 202 name Office_2nd_Floor

VLAN 202 added:

    Name: Office_2nd_Floor

Switch(vlan)#vlan 203 name Office_3rd_Floor

VLAN 203 added:

    Name: Office_3rd_Floor

Switch(vlan)#exi

APPLY completed.

Exiting....



CREATING VTP ON CORE SWITCH :


Switch>

Switch>en

Switch#conf t

Enter configuration commands, one per line.  End with CNTL/Z.

Switch(config)#vtp domain mycompany.com

Changing VTP domain name from NULL to my.company.com

Switch(config)#vtp mode server

Setting device to VTP CLIENT mode.

Switch(config)#vtp password Mypassword

Setting device VLAN database password to Mypassword

Switch(config)#



 CREATING TRUNK :



Trunk is the port that connecting the switches.

Helpful Command :

Switch#sh run (to see the interface format, e.g : gigabitEthernet 0/1 atau gigabitEthernet 0/0/1)

Switch#sh cdp neighbor (to see the trunk between switches)



Switch(config)#int gigabitEthernet 0/1

Switch(config-if)#switchport trunk encapsulation dot1q

Switch(config-if)#switchport mode trunk

Switch(config-if)#exit

Switch(config)#exit

Switch#wr

Building configuration...

[OK]

Switch#





========================================================================

 CONFIGURATION ON CLIENT SWITCH

CREATING VTP ON CLIENT SWITCH :


Switch>

Switch>en

Switch#conf t

Enter configuration commands, one per line.  End with CNTL/Z.

Switch(config)#vtp domain my.company.com

Changing VTP domain name from NULL to my.company.com

Switch(config)#vtp mode client

Setting device to VTP CLIENT mode.

Switch(config)#vtp password Mypassword

Setting device VLAN database password to Mypassword

Switch(config)#



CREATING TRUNK ON CLIENT :


Trunk is the port that connecting the switches.

Helpful Command :

Switch#sh run (to see the interface format, e.g : gigabitEthernet 0/1 atau gigabitEthernet 0/0/1)

Switch#sh cdp neighbor (to see the trunk between switches)



Switch(config)#int gigabitEthernet 0/1

Switch(config-if)#switchport trunk encapsulation dot1q

Switch(config-if)#switchport mode trunk

Switch(config-if)#exit

Switch(config)#exit

Switch#wr

Building configuration...

[OK]

Switch#

Symantec Backup Exec 2012 error when backup exchange server.

Problem  : Error when running backup on Exchange Server (Symantec Backup Agent).

Study Case :

1. There are 3 server on this company, Domain Controller, Exchange Server and Application Server.
2. Symantec Backup Exec is installed on Domain Controller server.
3. Symantec Agent is installed on Exchange server and Application Server.



Resolution :

1. Make sure the license is correct, check license compatibility.
2. Make sure Symantec Agent is successfully and can running on the Exchange Server
3. Install Exchange Management Tools on Domain Controller (Symantec Backup Exec server) server to perform GRT backup and restore exchange mail box .

Generating a Certificate Signing Request (CSR) using Apache (with mod_ssl) & OpenSSL

Generating a Certificate Signing Request (CSR) using Apache (with mod_ssl) & OpenSSL

To generate your CSR, you will need to log in to your server and use the OpenSSL software to generate a CSR and private key.

1. Log in to your server, and enter the following command:

openssl req -nodes -newkey rsa:2048 -keyout myserver.key -out server.csr

This will generate two files: a CSR called 'server.csr' and a 2048-bit private key called 'myserver.key'.

2. You will be prompted to enter some information for your CSR:

Country Name (2 letter code) [AU]: GB
State or Province Name (full name) [Some-State]: Yorks
Locality Name (eg, city) []: York
Organization Name (eg, company) [Internet Widgits Pty Ltd]: MyCompany Ltd
Organizational Unit Name (eg, section) []: IT
Common Name (eg, YOUR name) []: mysubdomain.mydomain.com
Email Address []:

Please enter the following 'extra' attributes to be sent with your certificate request

A challenge password []:
An optional company name []:

The 'CN' field (Common Name) is where you should enter the fully qualified domain name of the website you require the certificate for.
Note: for wildcard certificates, the Common Name should be in the format: *.mydomain.com

3. Your CSR is now generated. Open the 'server.csr' file with a text-editor and copy and paste the contents into the enrollment form when requested.

Notes:
The 'myserver.key' file should be kept secure (e.g. readable only by root on linux systems).

Removing the '-nodes' option from the openssl command will request a password and encrypt the private key. This can increase security, but note that the password will be required each time Apache is restarted.

EV certificates require a minimum of a 1024-bit keysize if valid before 2011, and 2048-bit if they are valid into 2011. We recommend that a 2048-bit keysize is the minimum used for all certificates.

The two-letter 'Country Name' field must be the ISO-3166 standard country code. Please note that 'GB' is correct for Great Britain, not 'UK'. A complete list can be found here: http://www.iso.org/iso/country_codes.htm

Exchange 2010 can send email from POP 3 using anonymous account without password

To prevent the spam or anonymous using your domain email :

1.Open the Exchange Management Console and go to Server Configuration - Hub Transport and create a new Receive Connector.

 2. Right click and go to properties on your new Receive Connector. Go to Network tab and  change the IP address with 0.0.0.0/32 or 0.0.0.0-255.255.255.255 and add your exchange IP Address,

3. Go to Authentication tab and tick Transport Layer Security (TLS) and Externally Secured.

 4. Go to Persmission Group tab and tick Exchange servers only and then click Apply and Ok.

Error when installing Microsoft Office Home & Business 2013

Error Messages :

Resolution :

1. Delete the existing folder for Microsoft Office which is located on :
    C:\Program Files\Microsoft Office.
    C:\Program Files\Microsoft Office 15

2. Start - run - type regedit and press enter,  find the below registry and delete it (please backup your registry before you change anything on it) :

HKEY_CURRENT_USER-Software-Microsoft-Office (delete "Office" Folder only)
HKEY_LOCAL_MACHINE-Software-Microsoft-Office (delete "Office" Folder only)

3. Restart the computer and try to run the installation again.

Exchange Server 2010 : EMC Initialization failure No Exchange Servers are available

Error Message : 

No Exchange servers are available in any Active Directory sites.  You can't connect to remote Powershell on a computer that only has the Management Tools role installed.  It was running the command 'Discover-ExchangeServer -UseWIA $true -SuppressError $true -CurrentVersion 'Version 14.1 (Build 218.15)".

Resolution : 

1. Please make sure the account you logged in is a domain account.

2. Restart Exchange 2010 to resolve any potential issues.

3. On exchange server, run DCDIAG to check your Active Directory and Domain Controllers and check if there is any error.

Exchange 2010 Error : The user "domain\username" isn’t assigned to any management roles.

Try to use Active Directory and Computers.

1. Open the OU Microsoft Exchange Security Groups.
2. In that OU, you'll find Organization Management.
3. Add your user to that group.

Limitasi Mikrotik port SMTP dan POP3 pada jaringan lokal

Limitasi Mikrotik port SMTP dan POP3 pada jaringan lokal. Di bawah ini configurasi port SMTP(25) dan POP3(110) pada mikrotik.

1. Buat mangle untuk SMTP dan POP3
SMTP:
    ip firewall mangle add action=mark-packet chain=prerouting dst-port=25 protocol=tcp new-packet-mark=smtp_pack passthrough=yes comment=Limitasi_SMTP


POP3:

    ip firewall mangle add action=mark-packet chain=prerouting dst-port=110 protocol=tcp new-packet-mark=pop3_pack passthrough=yes comment=Limitasi_POP3


2. Buat limitasi menggunakan "Queue Tree"

SMTP:

    queue tree add name=smtp-q parent=global-out packet-mark=smtp_pack queue=default priority=8 max-limit=256000


POP3:

    queue tree add name=pop3-q parent=global-out packet-mark=pop3_pack queue=default priority=8 max-limit=256000



Pada configurasi diatas dibatasi untuk SMTP dan POP 256kb bandwidth.
Dengan demikian limitasi port SMTP dan POP3 selesai.
End.