Tag: debian | Page 2

Fix Class ‘DOMDocument’ not found error

Leave a Comment / Systems Deployment / sedlav / April 1, 2020

If you are using the DOMDocument in your projects and get this error:

PHP Fatal error:  Uncaught Error: Class 'DOMDocument' not found

you can fix it installing…

Fix Class ‘DOMDocument’ not found error Read More »

14 commands for basic Postgres administration

Leave a Comment / Data Base / sedlav / February 23, 2020

psql is a CLI client for Postgres administration, psql allows:

– Connect to the server
– Create DB
– Admin users
– Execute SQL queries and perform administration tasks in general.

14 commands for basic Postgres administration Read More »

How to install Debian, expert mode

Leave a Comment / Operating System / sedlav / February 22, 2020

Debian is a highly recommended distribution for server environments due to:

His version release philosophy. Debian does not have a fixed cycle to release new versions, but each version is released once the development team considers it stable enough (released when it is ready).
Packages inclusion policy: only stable and well-tested packages are included.
Its robustness and stability.

How to install Debian, expert mode Read More »

How to install PostgreSQL in Debian

Leave a Comment / Data Base / sedlav / February 15, 2020

PostgreSQL is a powerful object-relational database system with more than 30 years of active development that has gained a high reputation for reliability, robustness and performance.

How to install PostgreSQL in Debian Read More »

XFCE: Resolve Print Screen does not work

Leave a Comment / Desktop / sedlav / January 30, 2020

In Debian XFCE Prt Scr key is not associated with the command xfce4-screenshoter, utility to perform screen captures, if we want to set this shortcut to make screenshots we must follow the following steps

XFCE: Resolve Print Screen does not work Read More »

How to know if a package is installed

Leave a Comment / Systems Deployment / sedlav / May 16, 2016

We can use the aptitude command to know if a package has been installed on Debian GNU/Linux or derivative. In CentOS/RHEL/Fedora you can use yum

How to know if a package is installed Read More »

How to know the installed version of Debian/Ubuntu?

Leave a Comment / Operating System / sedlav / May 14, 2016

We can know the version of Debian / Ubuntu we have installed by running the following command:

$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.4 LTS"

How to know the installed version of Debian/Ubuntu? Read More »

Suspend or Hibernate in Debian XFCE

Leave a Comment / Desktop / sedlav / May 13, 2016

If you have installed Debian XFCE and you try putting your computer into hibernation or suspension mode as shown in the figure:

Suspend or Hibernate in Debian XFCE Read More »

Handle NTFS partitions in GNU/Linux

Leave a Comment / Operating System / sedlav / May 11, 2016

To handle NTFS partitions in GNU/Linux you should install the package ntfs-3g

Note: From April 2011 the ntfs-3g and ntfsprogs projects joined forces so now everything is in a single suite: ntfs-3g.

Most likely your distribution may already have installed the suite ntfs-3g else you can do it by exec

Debian/Ubuntu

$ sudo apt-get install ntfs-3g

CentOS/Fedora/RHEL

# yum install ntfs-3g

Handle NTFS partitions in GNU/Linux Read More »

Find duplicated files in GNU/Linux

Leave a Comment / CLI / sedlav / May 7, 2016

One of the easiest and safest ways to find duplicate files on GNU / Linux files is using the tool fdupes, fdupes find duplicate files comparing the file sizes, making a check MD5 followed by a byte to byte comparison.

Find duplicated files in GNU/Linux Read More »