The EMQ broker is one of the most interesting MQTT brokers. EMQ is fully open source and licensed under the Apache Version 2.0. EMQ implements both MQTT V3.1 and V3.1.1 protocol specifications, and supports...
Category: UNIX TLC
The warning message in the title appears during the installation of packages (invoking Perl) and it’s due to missing locales being set not. The full message looks like the following one:
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LC_CTYPE = "UTF-8",
LANG = "en_GB.UTF-8"
are supported and installed on your system.
perl: warning: Falling back to a fallback locale ("en_GB.UTF-8").
locale: Cannot set LC_ALL to default locale: No such file or directory
As shown in the Remove all blank lines using Vim post :g command is what we are looking for. For example, to remove all lines containing the string “TO REMOVE” we have to issue the...
The “/dev/” directory in the linux filesystem, provides the entries for the physical devices that may or may not be present in the hardware. “/dev/” also provides some pseudo-devices that handle specific use. For...
Mysql provides the general query log. In the General query log, mysql records information about connection/disconnection by users and information about each statement received from clients. You can use this log file for debugging...
A transaction symbolizes a unit of work performed within a database management system (or similar system) against a database, and treated in a coherent and reliable way independent of other transactions. A transaction generally...
In computer networking, a hostname (archaically nodename) is a label that is assigned to a device connected to a computer network and that is used to identify the device in various forms of electronic...
Creating an hotspot with windows 7 is easy, but you may have to install some additional software. If you don’t want to install anything you can write a simple batch file that will do...
Some days ago I switched my php application to another hosting. All seemed to work properly, but one thing no. Just a little thing…… The Authorization header was not picked by the apache_request_headers()...