
IT Stuff
Get flash to fully experience Pearltrees
Recover Your Windows Vista and Windows 7 Product Keys Easily wit
The New Rebels Haven Forum!!: Sticky: Biostar 965PT/Deluxe/Expre
Creating and Using a self signed SSL Certificates in debian
This document covers a very specific, limited purpose, but one that meets a common need: preventing browser, mail, and other clients from complaining about the certificates installed on your server. Not covered is dealing with a commercial root certificate authority (CA). Instead, we will become our own root CA, and sign our own certificates. (These procedures were developed using OpenSSL 0.9.6.)Sophos recommends enabling the MTA-level IP Blocker as part of an overall strategy to optimize PureMessage performance. If you want to authenticate connections using SMTP-AUTH while MTA-level blocking is enabled, you must modify PureMessage Postfix (SMTP-AUTH is not supported for external Postfix installations nor for any version of sendmail). When configured as described below, your system permits access for any IP address contained in the $mynetworks parameter, and then checks to see if it's an authenticated connection. If authentication is successful, messages are delivered without further testing. If authentication fails, messages are passed along to the MTA IP Blocker to begin testing. Since SMTP-AUTH alone is not secure (it sends usernames and passwords over the internet in plain text format), it is recommended that you use SMTP-AUTH in conjunction with Transport Layer Security (TLS), so that this information is encrypted.
PureMessage for UNIX: Configuring SMTP authentication with the M
Use SSH to Create Secure Tunnels for File Transfers (SFTP), Remo
Searching for the QoS Holy Grail
Using PAM to Block Brute Force Attacks
The idea to use PAM (Pluggable Authentication Modules for Linux) to block brute force attacks sounds like a good idea, right? After all, we are using PAM for most of the authentications mechanisms, so adding a module to check against repeated failures would be great. Surprisingly even if this sounded like something normal, I found only one PAM module that was written for this purpose. This is called pam_abl and you can find it here: http://hexten.net/pam_abl In order to use pam_abl we first need to install it on our system.In the previous article of this series, we started reviewing high availability and scalability enhancements in SQL Server 2005 (based on its recent Beta 2 release) by discussing database mirroring. In this article, we will continue exploring the same area of functionality, shifting our attention to failover clustering. We will also provide comparison of both features, which should help in recognizing the types of scenarios for which each of them is better suited. Failover clustering has been supported since SQL Server 7.0 so it is not surprising that its latest implementation is a combination of already familiar (and stable) technology with a number of useful improvements.

