June 2008

Data center redundancy

Submitted by MarkAdams on Fri, 06/06/2008 - 18:38

Recently, a large well known dedicated server provider in Texas had an explosion in the power control room of one of their data centers, causing the data center to lose power. SpamStopsHere had four servers in the affected data center. This wasn't a big deal for us as we often have more than one server down just for maintenance.

Tags: 
System Administration

DNS also uses TCP

Submitted by MarkAdams on Thu, 06/12/2008 - 21:19

When configuring your firewall, please remember that the Domain Name Service (DNS) protocol does not use only the User Datagram Protocol (UDP) but also falls back to using the Transmission Control Protocol (TCP) for queries where the answer is over 512 bytes.

Tags: 
System Administration

Anti-spam ROI

Submitted by MarkAdams on Wed, 06/18/2008 - 17:58

What's your antispam ROI? An accurate anti-spam product can give you a positive ROI, while using an innaccurate anti-spam product like postini can lose you money.

Tags: 
Antispam

No more domain tasting!

Submitted by MarkAdams on Thu, 06/26/2008 - 18:27

Domain tasting has been a tactic used by spammers for a long time, but it has finally been ended by the Internet Corporation for Assigned Names and Numbers.

Tags: 
Antispam