Author: René Jorissen

René Jorissen works as Solution Architect for QMonkeys in the Netherlands. Network Infrastructures are the primary focus. René works with equipment of multiple vendors, like HPE Networks, FortiNet, SentinelOne, Phished, Holm Security, Microsoft services and many more. René is Aruba Certified Edge Expert (ACEX #26), Aruba Certified Mobility Expert (ACMX #438), Aruba Certified ClearPass Expert (ACCX #725), Aruba Certified Design Expert (ACDX #760), CCNP R&S, FCNSP and Certified Ethical Hacker (CEF) certified. You can follow René on Twitter and LinkedIn.

IPSec / SSL VPN

Juniper SA & Terminal Server with Novell Client SSO

René Jorissen on May 12, 2009 • 0 Comments • Tags: #access #client #juniper #novell #on #sa #secure #server #sign #single #sso #terminal

Normally configuring SSO on a Terminal Server in conjunction with a Juniper SA isn’t that hard. On the Juniper you pass the user credentials to the Terminal Server. On a normal Terminal Server you have to check the following: Disable Always prompt for password under: Terminal Services Configuration –> Connections –> Properties of RDP-tcp –> … Read More

Configuration Example, IPSec / SSL VPN

Juniper SA & GroupWise WebAcc SSO

René Jorissen on May 6, 2009 • 1 Comment • Tags: #2500 #authenticate #based #fba #form #forms #groupwise #juniper #novell #on #post #sa #sign #single #sso #webacc #webaccess

While configuring a Juniper SA2500 in conjunction with Novell GroupWise WebAccess, the customers wanted single sign on (SSO) configured. The default Novell GroupWise WebAccess login page uses FBA (Forms Based Authentication). So it should be possible to push the correct POST parameters to enable SSO for GroupWise WebAccess. I started with looking at the page … Read More

Mail relaying

Secret Barracuda Spam firewall options

René Jorissen on May 4, 2009 • 0 Comments • Tags: #ampexpert #ampexpert1 #1 #advanced #barracuda #extra #firewall #option #secret #spam

While troubleshooting a Barracuda Spam Firewall 300 I found a forum on internet, which shows you how to get an extra tab under the Advanced configuration of the Barracuda Spam Firewall. The “secret” configuration page is enabled with the following steps: Logon to the Barracude Spam Firewall 300; Click on the Advanced tab; Add &expert=1 … Read More

Security

Secure LDAP between Softerra and Novell NDS

René Jorissen on April 22, 2009 • 0 Comments • Tags: #48 #browser #cert7db #communicator #key3db #ldap #ldaps #nds #netscape #novell #secure #softerra

Softerra LDAP Browser is a powerful tool for browsing servers, which support LDAP. Using Softerra LDAP Browser against a Novell NDS with secure LDAP is a different story. A secure LDAP connection is a connection which uses SSL certificates to encrypt the data stream. I had to use my LDAP Browser to query a Novell … Read More

Configuration Example

802.1Q between Catalyst 3750 en PowerConnect 6226

René Jorissen on April 3, 2009 • 0 Comments • Tags: #6226 #8021q #acceptable-frame-type #catalyst #cisco #dell #general #native #powerconnect #pvid #switchport #tagged-only #trunk #vlan

Configuring a 802.1Q connection isn’t that difficult, but you need to know the command line interface and the appropriate commands. Today I configured a 802.1Q connection between a Cisco Catalyst 3750G and a Dell PowerConnect 6226, while configuring I played a little with the trunking options on the PowerConnect and I noticed the following: The … Read More

Configuration Example, IP Telephony

Strange VPDN-GROUP behavior

René Jorissen on April 1, 2009 • 1 Comment • Tags: #group #l2tp #receive #receive-window #tunnel #vpdn #vpdn-group

I noticed some strange behavior in a vpdn-group configuration on a Cisco 876 router. I have a router with the following vpdn-group configuration: vpdn-group pptp-group ! Default PPTP VPDN group description pptp vpn users accept-dialin protocol pptp virtual-template 10 The configuration is working perfectly and users can dialin using a PPTP connection. Backups of the … Read More