Blog

Ubuntu

General

Proxy, Firewall, and DNS

NFS

Open Journal System (OJS)

E-mail

Java

Oracle

Python

PDF Support

  • sudo apt-get install pdfmod
  • sudo apt-get install pdftoppm
  • pdftoppm input.pdf outputname -png

WordPress

  • CREATE DATABASE WP_USER;
  • CREATE USER ‘WP_USER’@’localhost’ IDENTIFIED BY ‘PASSWORD’;
  • GRANT ALL PRIVILEGES ON WP_USER.* TO ‘WP_USER’@’localhost’;

MySQL

  • Instalation
  •  Backup
    • mysqldump –force –opt –user=$USER –password=$PASSWORD –databases $db | gzip -c > $OUTPUT/$db.gz
  • Restore
    • gzip -d $db.gz
    • mysql -u root -p $db < $db
  • Remote calls
    • CREATE USER ‘user’@’%’ IDENTIFIED BY ‘senha’;
    • GRANT ALL ON *.* TO user@’%’ WITH GRANT OPTION ;

PostgreSQL

  • Backup
    • su - postgres -c "/usr/bin/pg_dump $db | gzip -c > $DIR/$db.gz"
  • Restore
    • gunzip $db.gz
    • su - postgres -c "psql -d $db -f $DIR/$db"
  • Change postgres password
    • su -l postgres
    • psql
      • alter user postgres with password ‘<senha>’;
  • Remote Access
    • Edit postgresql.conf
      • Change: listen = ‘*’
    • Edit pg_hba.conf
      • Include: host   all   all   0.0.0.0     0.0.0.0   md5
  • Main

Locale

  • locale-gen pt_BR pt_BR.UTF-8
  • dpkg-reconfigure locales
  • apt-get dist-upgrade
  • vi /etc/default/locale
    • LANG=en_US.UTF-8
    • LANGUAGE=en_US.UTF-8
    • LC_CTYPE=en_US.UTF-8Se

[:en]General

Proxy, Firewall, and DNS

NFS

Open Journal System (OJS)

E-mail

Java

Oracle

Python

PDF Support

  • sudo apt-get install pdfmod
  • sudo apt-get install pdftoppm
  • pdftoppm input.pdf outputname -png

WordPress

  • CREATE DATABASE WP_USER;
  • CREATE USER ‘WP_USER’@’localhost’ IDENTIFIED BY ‘PASSWORD’;
  • GRANT ALL PRIVILEGES ON WP_USER.* TO ‘WP_USER’@’localhost’;

MySQL

  • Instalation
  •  Backup
    • mysqldump –force –opt –user=$USER –password=$PASSWORD –databases $db | gzip -c > $OUTPUT/$db.gz
  • Restore
    • gzip -d $db.gz
    • mysql -u root -p $db < $db
  • Remote calls
    • GRANT ALL PRIVILEGES ON $db.* TO ‘$USER’@’%’ IDENTIFIED BY ‘$PASSWORD’ WITH GRANT OPTION;

PostgreSQL

  • Backup
    • su - postgres -c "/usr/bin/pg_dump $db | gzip -c > $DIR/$db.gz"
  • Restore
    • gunzip $db.gz
    • su - postgres -c "psql -d $db -f $DIR/$db"
  • Version 9.4
    • Create the file /etc/apt/sources.list.d/pgdg.list, and add a line for the repository 
      • deb http://apt.postgresql.org/pub/repos/apt/ trusty-pgdg main
    • Import the repository signing key, and update the package lists 
      • wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | \
        sudo apt-key add -
        sudo apt-get update 
  • Remote Access
    • Edit postgresql.conf
      • Change: listen = ‘*’
    • Edit pg_hba.conf
      • Include: host   all   all   0.0.0.0     0.0.0.0   md5
  • Main

Locale

  • locale-gen pt_BR pt_BR.UTF-8
  • dpkg-reconfigure locales
  • apt-get dist-upgrade
  • vi /etc/default/locale
    • LANG=en_US.UTF-8
    • LANGUAGE=en_US.UTF-8
    • LC_CTYPE=en_US.UTF-8Se

Eduardo Ogasawara

I am a Professor of the Computer Science Department of the Federal Center for Technological Education of Rio de Janeiro (CEFET / RJ) since 2010. I hold a PhD in Systems Engineering and Computer Science at COPPE / UFRJ. Between 2000 and 2007 I worked in the Information Technology (IT) field where I acquired extensive experience in workflows and project management. I have solid background in the Databases and my primary interest is Data Science. He currently studies space-time series, parallel and distributed processing, and data preprocessing methods. I am a member of the IEEE, ACM, INNS, and SBC. Throughout my career I have been presenting consistent number of published articles and projects approved by the funding agencies, such as CNPq and FAPERJ. I am also reviewer of several international journals, such as VLDB Journal, IEEE Transactions on Service Computing and The Journal of Systems and Software. Currently, I am heading the Post-Graduate Program in Computer Science (PPCIC) of CEFET / RJ.