This is one of the three part security auditing post for Exchange servers. Many implementers, system integrators, users and administrators implement Exchange servers as part of their collaboration infrastructure without knowing what’s going on in Exchange. For security conscious companies/people, its important to know that … “Monitoring Exchange Unauthorized Mailbox Access (Exchange 360degree monitoring) PART: 1”

Read More

TMNet’s Streamyx, as part of their antiflooding attempts of their service implements the blocking of port 25 which is commonly used for sending emails using SMTP for. As a streamyx user (non corporate/non fixed IP user), you may find this a nuisance especially if you … “Sending emails with streamyx (port 25 blocked by Streamyx)”

Read More

Lets face it, you can have a 100Mbps link to the WWW but it makes a huge performance (speed) impact if you have crappy DNS servers. This could mean DNS servers that are easily poisoned, DNS servers that are slow and DNS servers that are … “Free Internet Filter (and open & fast dns server)”

Read More