Tag Archives: TLS

rsyslog: Configure TLS/SSL

Hi,

to setup a remote syslog server TLS encryption is strongly recommended.

Continue reading rsyslog: Configure TLS/SSL

Advertisment to support michlstechblog.info

.NET: Set default SSL/TLS Version to 1.2

Hi,

by default .NET does not uses TLS Version 1.2. So if you disable all SSL/TLS versions lower then 1.2 .NET application could not establish a secure connection anymore.
Continue reading .NET: Set default SSL/TLS Version to 1.2

SSL/TLS: Enumerate all security ciphers a Web- or Mailserver offers

Hi,

you want to know which security ciphers a particular server supports?
Continue reading SSL/TLS: Enumerate all security ciphers a Web- or Mailserver offers

VMware Workstation: Generate a new selfsigned SSL/TLS certificate

Hi,

the VMware Workstation does not provide a program or script to generate a new pair of key and selfsigned certificate.

If’ve written a batch file which builds a new one. The scripts assumes that the Workstation is installed in the default folder C:\Program Files (x86)\VMware\VMware Workstation and uses the openssl command delivered with the program.

Adjust the Countryname, State, etc. to your own needs. Config is based on the VMware Docs.

Continue reading VMware Workstation: Generate a new selfsigned SSL/TLS certificate

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