APC PDU Load Balancing and Monitoring

Sometimes its easy to get wrapped up in the more complicated things and forget about the basics. Something as simple as power to your equipment being fully resilient can be forgotten but if it fails you can find yourself dealing with an outage that you don’t really want to have had to deal with. Balancing … Read more

APC ATS (Automatic Transfer Switch) AP4421 Data Centre Expert Shows “Transfer DDF Failed”

Using Data Centre/Center Expert and adding an APC ATS switch, even though the configuration was correct, FTP was enabled and the relevant settings set for SNMP for the relevant IP addresses the following error is observed in the Data Centre Expert “Device status may be inaccurate due to attempt to transfer DDF failed”. After much … Read more

Tado Smart Thermostats

I recently bought the Tado Smart Thermostats for my house to attach to my radiators. You’ll be familiar with such things as Hive and Nest which are Smart Thermostats, essentially these just make your Heating Thermostat you’ll typically have in your hall or landing into your home Internet enabled, so you can control it from … Read more

MTA-STS (Mail Transfer Agent Strict Transport Security) and TLS-RPT (TLS Reporting)

Emails crossing the internet use secure connections encrypted using Transport Layer Security (TLS). However, there remain vulnerabilities in this method of protecting the confidentiality of emails, whereby a person-in-the-middle can trick incoming connections to send to another server and/or send information in the clear. MTA-STS is a standard designed to address these vulnerabilities and is … Read more

Kemp Load Master – SAML via OKTA with KCD to Microsoft Exchange OWA (Outlook Web Access)

The Kemp Load Master allows for the configuration of authentication offloading to itself (from the Microsoft Exchange server supporting Kerberos) to allow for the Kemp Load Master to act as a sP (Service Provider) against an IdP (Identity Provider) for example OKTA. The use of SAML via OKTA allows for any SAML (and Kerberos KCD … Read more