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.

Switching

Catalyst 3750X licensing

René Jorissen on July 26, 2010 • 1 Comment • Tags: #3750x #base #ip #lan #licensing #services #upgrade

While making a kit list for a network design with Cisco Catalyst 3750X switches, I got confused while looking at the different licensing features. The Cisco Catalyst 3750X switches are available with multiple licensing options, which can be upgraded. A new switch can be ordered with two licensing options. These are LAN Base (Enhanced Intelligent … Read More

Other stuff...

Outlook 2010 and Google Calendar Sync

René Jorissen on June 30, 2010 • 2 Comments • Tags: #2010 #calendar #google #outlook #sync

I replaced my Outlook 2007 with Outlook 2010. Since I am using Google Calendar, I would like to sync my calendar with Outlook. With Outlook 2007 you can use the Google Calendar Sync application. After installing Outlook 2010 the synchronization of the calendar didn’t function anymore. While synchronizing you will receive the following error message. … Read More

Configuration Example, Security

Restore RSA 7.1 primary database and RADIUS config

René Jorissen on June 30, 2010 • 2 Comments • Tags: #configutil #database #instance #on-demand #primary #radius #replica #restore #rsa #rsautil

A few days ago I was troubleshooting a problem with an ISA array after upgrading the VMware environment as you can read in this article. I had a same kind of problem with a RSA environment. After upgrading the VMware Tools and the Virtual Hardware, the RSA database didn’t start anymore. RSA noticed to much … Read More

Security

Windows LDAPS expired

René Jorissen on June 17, 2010 • 0 Comments • Tags: #authority #certificate #certsrv #expired #ldaps #windows

A lot of appliances and/or security solutions use LDAP to synchronize users from an Active Directory or an eDirectory environment. Active Directory is LDAP enabled by default. If you would like to harden your network,  you would like to use LDAPS. LDAPS is a term to refer to LDAP communication over SSL. Intercepted LDAPS traffic … Read More

Proxy

VMware: upgrade VMware Tools and Virtual Hardware for Microsoft ISA array

René Jorissen on June 15, 2010 • 2 Comments • Tags: #array #duplicate #hardware #igmp #ip #isa #nlb #tools #upgrade #virtual #vmware

Today I have been troubleshooting problems with a Microsoft ISA array. The array didn’t function anymore after moving the Configuration Storage Server and one array member from a VMware 3.5 environment to a VMware 4.0 environment. After moving the array member the VMware Tools were upgraded and also the Virtual Hardware was upgraded. After rebooting … Read More

Configuration Example, Proxy

Microsoft ISA publishing – it’s all in the “path”

René Jorissen on June 9, 2010 • 0 Comments • Tags: #2006 #activesync #anywhere #isa #outlook #owa #path #publish #redirect #rpc #rpcoverhttps

I have installed multiple reverse proxy servers based on Microsoft ISA 2006. These reverse proxy servers are mainly deployed to publish services like Outlook WebAccess, PDA synchronization, SharePoint or regular websites. Services like Outlook WebAccess are published using secure session protected by SSL certificates. Microsoft ISA server uses “Listeners” to match and intercept traffic from … Read More