Thursday, October 12, 2017

Out Of memory , Not Enough Space Solaris 11

SQL> startup mount ;
ORA-27102: out of memory
SVR4 Error: 12: Not enough space
Additional information: 1671
Additional information: 16106127360
Additional information: 64424509440

The Above error appeared When trying to start Oracle 12c on Solaris 11.3, this is published bug 

Bug:20635316 - 12C DATABASE INSTANCE STARTUP FAILS WITH ORA-27102: OUT OF MEMORY

Solaris using something called OSM , Optimized Shared memory You can know more about it here 

To avoid this error as workaround just set the parameter

_use_osm=FALSE


Thanks
Osama

Monday, October 2, 2017

Configure AWS Command Line Interface

In this lesson i will show you how to configure AWS command line, and how to start working with your AWS account thru command line with very simple and basic steps :-


  • First of i will assume that you don't have any user or group in your AWS console
  • from the AWS Console :-


  • From IAM ( Identity access management ) Choose Group Create Group with permission Administrator access and then hit create.

  • create user and add that user to the group in my case the group name shown above, save the secret key and access ID as CSV.
  • Now from this link here, Download AWS Command Line Interface depend on your operating system and open cmd , terminal ... etc.
  • Now from Dos enter AWS configure and fill the information like the below:-

  • Open the command line and test if it's connected to AWS now.

You can learn more about the command line from AWS documentation , if you recive the following error 

"Could not connect to the endpoint URL: "https://s3.london.amazonaws.com/"

Then make sure you are on the right Region.

Thanks
Osama




Saturday, September 30, 2017

failed to associate the token : AWS

Once you create AWS you should activate "Activate MFA on your root account" 



and do that you should use your phone (Iphone, Android) download google authenticator app from the app store/Google Play once the installation is done Scan the QR and Enter the code, the code will be change automatically, if the first try not working and you receive this error " failed to associate the token" uninstall the app and try again.

Thank you
Osama

Friday, September 22, 2017

Helping implementer and tester dealing with famous Siebel - based system messages and errors



Upon my colleague Mohammad Altraimat i am publishing this article

 let me gives you a brief  about him , he is currently working with as Siebel Freelance , ensure the functionality of systems, support and train clients to use the systems and collect the requirements from the client and ensure it reflected during his career he developed this document to help people to understand more about Siebel.

You Can Share it But please mention the source of the article or you ask me to share the article with you.

You can find the article here.

Thank you
Cheers
Osama 

Tuesday, August 8, 2017

Weblogic 101 for DBA Webinar

if you want to learn more about web-logic, Register now "Weblogic 101 for DBA"

i will cover different topic during the webinar to give you a better idea about the weblogic concept

Register now here

Thank you
Osama

Sunday, August 6, 2017

Migrating From AWS to Oracle Using SQL Developer

The Data Uploaded to the Cloud Vendor Amazon web services ( AWS ) But the client decided to move their data on-premises for the first sight you will think this is hard and needs  a lot of work but thank you SQL Developer and Jeff Smith and he is the product manage for SQL Developer amazing man by the way and crossfitter  at the same time :P

However Lets start :-


  •  Open SQL developer
  • Choose Database copy option from tools menu.


  • Select source database should be AWS
    • Provide hostname only for the AWS
    • Listener Port
    • DB Name
    • Username/Password 
    • Test your connection.
  • Select destination database should be Oracle 

  • Provide hostname only for the AWS.
      • Provide hostname/IP for the server.
      • Listener Port
      • DB Name
      • Username/Password 
      • Test your connection.



    • Press Next Button, if the migration done before on the same schema press replace and next.

                                        

    • Press Next after choose what you want to move, Data, Functions , Or trigger ... etc

    • Check Proceed to summary and Press the finish button the migration will start after this,  it will take some time depend on internet connection and data size.
    Enjoy the migration
    Osama Mustafa






    Thursday, June 1, 2017

    Getting Started with Pentesting

    Today i received an email for the official publish for Penetration testing tutorial videos , this is another achievement will be added to my security list.

    If you want to have alook on the video here

    Thank you PackIT for this opportunity

    Thank you
    Osama