Tag: Security

Windows PowerShell cmdlets to secure PSCredential Objects

March 26, 2016

I have previously discussed securing credentials using Windows Powershell atPowershell: Securing credentials using the PSCredential class. In this article, I will discuss a number of cmdlets I have created to secure credentials using a Advanced Encryption Standard (AES) encryption key to retrieve the content from a encrypted standard string. As I am using an encryption … More Windows PowerShell cmdlets to secure PSCredential Objects

Part Two – Computing email address hash value using Windows PowerShell

October 13, 2015

In part one I discussed computing the hash value using the MD5 hash algorithm for an email address, in this post I am going to discuss using other hash algorithms available in the HashAlgorithm Class to compute the value. The available hash algorithms are MD5, RIPEMD160, SHA1, SHA256, SHA384 and SHA512 therefore in the advanced function we will … More Part Two – Computing email address hash value using Windows PowerShell

Part One – Computing email address hash value using Windows PowerShell

October 10, 2015

I was recently discussing tracking email addresses and in particular protecting sensitive information and ensuring that the email address may not be re-used on deactivation. This got me thinking of how we could achieve this using Windows PowerShell. As the advanced function required an email address I wanted to validate the  parameter specified for an email … More Part One – Computing email address hash value using Windows PowerShell

Security – Part Five: Security Profile, Services and Firewall

February 14, 2015

When an ESXi host system is installed by default the firewall is enabled. All incoming and outgoing ports are blocked except the default TCP and UDP ports using for Management Services. The ESXi firewall protects the management interface of the ESXi host system, but provides no protection to virtual machines. By default, the following management … More Security – Part Five: Security Profile, Services and Firewall

Security – Part Four: Enabling ESXi Lockdown Mode

February 14, 2015

To increase the security of an ESXi host system which is being managed by a vCenter Server system you can enable Lockdown Mode to restrict users from performing actions directly on an ESXi host using SSH or the ESXi shell. Also, users without the DCUI Access privelage will be restricted from accessing the DCUI. As Lockdown … More Security – Part Four: Enabling ESXi Lockdown Mode