Tag Archives: command line

MQTT: Publish topics from command line

Hi,

the mosquitto MQTT broker also consists of some command line tools to publish or subscribe topics from a shell.

Continue reading MQTT: Publish topics from command line

Advertisment to support michlstechblog.info

Windows: Change application for a file extension from command line

Hi,

Windows has two command line utilities to alter the application associated with a file extension.
Continue reading Windows: Change application for a file extension from command line

ESXi: Upgrade an standalone ESXi Host from 6.0 to 6.7 from command line




Hi,

this post describes an ESXi Host Upgrade from Version 6.0 to 6.7 with an offline (bundle) zip file. The procedure for other version should be the same.
Continue reading ESXi: Upgrade an standalone ESXi Host from 6.0 to 6.7 from command line

Windows: Get Windows Feature Version/Release ID

Hi,

2 Ways to determine the Windows Feature Version / Release ID from commandline. With powershell
Continue reading Windows: Get Windows Feature Version/Release ID

Mail: Connect TLS encrypted to a smtp server by telnet

Hi,

the SMTP protocol is ASCII based. In the past, the SMTP protocol goes unencrypted over the wire means you can simply send emails by connecting to the SMTP port 25 and enter some SMTP commands via telnet:

michael@debdev ~ # telnet smtp.yourdomain.org 25
EHLO test.example.com
MAIL FROM:info@yourdomain.org
RCPT TO:receiver@receiversdomain.org
DATA
Subject: Testmessage
<ENTER>
<ENTER>
This is a test message. End with <ENTER><ENTER> and point

.
QUIT

Continue reading Mail: Connect TLS encrypted to a smtp server by telnet