How to setup the pfSense firewall to route port 25 traffic to a specific machine
pfSense is one of the most popular open-source firewalls available. It’s basically a fork of m0n0wall project by Chris Buechler […]
General Cybersecurity
Cool Tools: BitTorrent Sync for Secure File Synchronization over the WAN
One of the challenges I’ve encountered over the years has been how to get heterogeneous servers to share information via
How to troubleshoot SMTP Authentication
If you’re doing desktop troubleshooting of end user mail clients and you want to make sure that a persons account
Why am I blacklisted?
First: If you’re a security savvy IT administrator, this article is not for you. This will sound pretty obvious to
Single installer to deploy managed applications on 32-bit and 64-bit platforms
Introduction: With the advent of 64-bit hardware, Microsoft has released a 64-bit version of Windows to leverage the capabilities of
100% spam prevention – impossible?
On one of the security mailing lists I follow, someone had an interesting conundrum. His management wants a 100% effective
DNS Blacklist filtering still rules, but for how long?
I came across a blog post from Virus Bulletin today, explaining that anti-spam solutions displayed significantly lower spam catch rates [in
Part 2: How to monitor application performance and send alerts on Windows Server 2008
In my previous article, I outlined how one could monitor a performance counter and send alerts to a pager or
How to reproduce network errors (DNS, SMTP, …) with NetCat
As an administrator, developer, support technician, or a quality analyst who works with email or network solutions, you probably often
How to monitor application performance and send alerts when a threshold is breached
Before investing in an expensive tool to monitor the performance of your various applications, it’s important to know that Windows
