Online editors and useful links

-

Comments

Post a Comment

Back To Top

Popular posts from this blog

error 18 at 0 depth lookup: self signed certificate

-
I was trying to test SSL connection between MySQL client and server. For that I created SSL certificate and keys by following the MySQL documentation at: Creating SSL Certificates and Keys Using openssl After finishing up all the commands when I verify the certificates by using: openssl verify -CAfile ca.pem server-cert.pem client-cert.pem I got the following output: error 18 at 0 depth lookup : self signed certificate error server-cert.pem: verification failed client-cert.pem: OK  Reason : The Common Name value used for the server and client certificates/keys must each differ from the Common Name value used for the CA certificate. Otherwise, the certificate and key files will not work for servers compiled using OpenSSL. Solution : When OpenSSL prompts you for the Common Name for each certificate, use different names. Common Name (e.g. server FQDN or YOUR name) []: I used values as follows: CA Cert:  ssl-ca-cert Server Cert: ssl-ca-server-cert Client Cer...
Read more

What are the various stages of database startup and shutdown

-
What are the various stages of database startup and shutdown?   To start up or shut down an Oracle instance, you need to be connected to the database with the appropriate privileges. Two special connection account authorizations are available for startup and shutdown: SYSDBA and SYSOPER Starting Up an Oracle Database STARTUP NOMOUNT This starts the instance without mounting the database. When a database is started in this mode, the parameter file is read, and the background processes and memory structures are initiated, but they are not attached or communicating with the disk structures of the database. When the instance is in this state, the database is not available for use. If a database is started in NOMOUNT mode, only the background processes and instance are started. The instance is not associated with any database. This state is used to create a database or to create a database control file. At times, a database may not be able to go to the next mode...
Read more

How to install and configure MySQL on Windows

-
Image
MySQL is a well-established relational database management system. It is fully compatible with a Windows computer system. By using the MySQL Installer, an application designed to simplify the setup of MySQL products, MySQL can be installed and deployed within minutes. Quick Links 1. Prerequisites 2. Installation 2.1. Download MySQL Installer for Windows 2.2. Set Up MySQL Installer for Windows 2.3. Configure MySQL Server on Windows 2.3.1. High Availability 2.3.2. Type and Networking 2.3.3. Authentication Method 2.3.4. Accounts and Roles 2.3.5. Windows Service 2.3.6. Logging Options (Optional) 2.3.7. Advanced Options (Optional) 2.3.8. Apply Configuration 2.4. Complete MySQL Installation on Windows Server 3. Conclusion The article is comprehensive, rich with images, and focuses on the individual steps nee...
Read more