A blog maintain by Paul Labis, a Java developer from cagayan de oro city, who love to share his knowledge about technology, softwa..
| Home | My Account | Directories |
Encrypt and decrypt files in Ubuntu with ccrypt
Published on 2011-12-28 19:00:00
ccrypt is a utility for encrypting and decrypting files and streams. It was based on Rijndael cipher, which was chosen candidate by U.S. government's for Advance Encryption Standard. This cipher is believed to provide a very strong security.1. Install CCrypt from reposudo apt-get install ccrypt2. To encrypt a file, use one of the following command,ccrypt -e file_name or ccencrypt file_name3. It will prompt you for Encryption Phrase aka Password, enter it. for example,ccrypt -e sample.text&n
How to Backup and Restore PostgreSQL Database
Published on 2011-10-10 11:43:00
There is an easy way to create backup file and restore your current PostgreSQL database using the Linux terminal. I am not sure though if this is the easiest way. As of the moment I am writing this article, I used the following command to backup and restore my database. Using pg_dump and psql will make your life easier. Below are the terminal command I use to backup and restore my database.Backup : pg_dump -U {user_name} {database_name} -f {backup_file_name}Restore : psql -U {user_name
Recover Ubuntu Grub2 After Windows Installation
Published on 2011-10-06 01:42:00
A month ago I decided to dual-boot my laptop with windows 7 and Ubuntu 10.04 version as my main operating system. So I first installed Ubuntu 10.04 then Windows 7 afterwards. After installing Windows 7, ubuntu distribution isn't accessible. I am not sure but I think Windows installation might have wiped out Ubuntu grub.To be able to recover Grub2 menu along with the option to select either which operating system you want to use, I did the following recovery steps below.Boot from U
