If you're receiving e-mail messages and there are random exclamation marks (!) at the end of lines, you've likely encountered the odd "line length limit indicator" added by Sendmail MTAs.

The Internet standards for SMTP indicate that a single line of an e-mail message can be no longer than 1000 characters. If sendmail encounters a longer line, it wraps it and adds an exclamation point (!) at the end of the line as an indicator of its behavior.

When I went on vacation recently, I was looking for a VPN solution that would be easily used from just about anywhere, and that was easy to install. I found the perfect solution in a product from 3SP Limited, a U.K. company.

A VPN is a virtual private network. In the most basic terms, it is a tool that makes a network that is accessible over a public network to be accessible as if you were on that private network. This is usually done by tunneling the traffic, securely, through the public network.

Two fundamental principles of information security are privileged access and information integrity auditing. In order to protect data, one needs the records of data access, as well as the records of any alterations or destruction of the data.

Yesterday afternoon, our many servers hosted at SoftLayer, one of the fastest growing data center companies in the U.S. started being unable to resolve names using Nework Solutions' nameservers at worldnic.com. In addition, our e-mail servers at SoftLayer were unable to connect to Network Solutions' hosted e-mail services at netsolmail.com to deliver e-mail. SoftLayer claims that Network Solutions is undergoing a DoS attack.