How to connect to a specific SID using sqlplus under Unix

Posted on August 5, 2010 by Osama Magdy

A very easy way to connect to a specific SID (other than the default one) using sqlplus, is to make this SID “temporarily” the default SID.
Just change ORACLE_SID environment variable to the required SID name:
export ORACLE_SID=sid_name
Then connect using sqlplus to the default SID:
sqlplus / as sysdba
It may not be the ideal way, but it’s “simple and stupid” as  SoCRaT says 🙂

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My CRM Session @FCIH Intiatave Program

Posted on August 1, 2010 by Osama Magdy

Last Wednesday, I’ve delivered a session about CRM “Customer Relationship Management” in my dear faculty “Faculty of Computers and Information – Helwan University” 🙂

Many many thanks to the organizers, and whoever made efforts to make this day successful. And for audiences, I wish you liked the session, and I’m waiting your feedback and opinions.

As I promised during the session, the following are some CRM resources and websites for those who are interested:

1. CRM:

2. Siebel CRM:

3. SAP CRM:

4. Open Source CRMs:

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Solution to Not Able to import PDF files on OpenOffice.org Lucid

Posted on June 30, 2010 by Ahmed Tawfik

Don’t manually download the extension from the website, install it from the repos instead “sudo apt-get install openoffice.org-pdfimport”

That’s it! Enjoy!

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Huawei e156G 3G modem Connection not appearing in Network Manager Connections List in Ubuntu Lucid

Posted on June 17, 2010 by Ahmed Tawfik
  1. Insert the modem
  2. Right-click and select eject
  3. Unplug the modem
  4. Plug in the modem
  5. Done!

I’m using the USB Huawei e156g 3G modem on Ubuntu Lucid

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Encrypt and Decrypt Text Files on AIX using OpenSSL

Posted on June 16, 2010 by Ahmed Tawfik

There are oodles of encryption algorithms and encrypting a file is quite simple.

Code:
# openssl enc -aes-256-cbc -in file -out file.enc
enter aes-256-cbc encryption password: password
Verifying - enter aes-256-cbc encryption password: password
#

To decrypt, simply swap your -in and -out file parameters and add a -d to the command line:

Code:
# openssl enc -d -aes-256-cbc -in file.enc -out file
enter aes-256-cbc encryption password: password
#

Source: http://www.unix.com/aix/28903-file-password-protection-encryption.html

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