Category: Security
Cisco 877W wireless authentication failed
At home I have a Cisco 877W router. I use the wireless functionality to connect the different laptops to the networks. After upgrading the software from the router I have problems with the wireless authentication. The router is working perfectly, but after some time the laptops are able to connect to the wireless network. Vista … Read More
Configuration Example, Security
Access rules DMZ components
Finally he first post in 2009, so before starting, HAPPY NEW YEAR!!!!! I know it’s late, but who cares…. This post is about opening specific ports from the DMZ to the internal network. This specific topic often results in discussions about which ports to open. One of the biggest discussion points is the use of … Read More
Configuration Example, Security
Cygwin with OpenSSL for CSR generation
A lot of services, which are published to the Internet, are secured with SSL certificates. A lot of times we use SSL certificates to secure communications when implementing ISA reverse proxy servers, Citrix Secure Gateway servers and/or Cisco WebVPN portals. When you want to secure a connection with a SSL certificate you have to create … Read More
RSA Authentication Manager 7.1 on VMware
I had to install and configure RSA Authentication Manager 7.1. Looking at the Supported Platforms I couldn’t find VMware ESX as supported platform. VMware ESX was supported for RSA AU6.1. So I thought by myself, let’s give it a try. What I noticed first was the size of the installer. The installation file for RSA … Read More
Configuration Example, Proxy, Security
Change password through LDAPS on ISA server
Today I received the question about allowing users to changes his/her password through webmail, whereby webmail is published via an ISA server 2006 reverse proxy. This is possible, but it requires the configuration of LDAPS to authenticate users. I started by configuring a Certificate Authority (CA) on a member server in the domain. During the … Read More
Configuration Example, Routing, Security, Switching
Secure HSRP configuration
A friend of mine works for a well known auditing and penetration testing company in the Netherlands. Recently we were talking about how he starts looking for flaws in network infrastructures. My friend told me that the first thing he does is simply starting WireShark and start looking at all the packets he receives. By … Read More