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.

Configuration Example, Routing

Netstat on IOS router

René Jorissen on December 4, 2008 • 0 Comments • Tags: #control #control-plane #host #netstat #open-ports #plane

I often use the netstat command on a Windows machine to check on which IP and/or ports the servers or workstation is listening or established connection. By accident I found the same kind of command for a Cisco IOS router, while I was looking through the CLI. Check out the output below: Router#sh control-plane host … Read More

Routing

GRE over IPsec with Cisco ASA

René Jorissen on December 3, 2008 • 0 Comments • Tags: #clear #connection #cscse36327 #gre #host #ipsec #local #local-host #reclassify-vpn #sysopt

In different scenario’s it is required to configure some kind of routing protocol between two offices, but the routers should be configured to look directly connected to each other. Normally I always configure an IPsec VPN between the two offices and configure an additional GRE tunnel over the IPsec VPN tunnel. In that way the … Read More

IPSec / SSL VPN, Proxy

Microsoft IAG

René Jorissen on November 25, 2008 • 0 Comments • Tags: #appliance #application #cag #cisco #csg #gateway #iag #intelligent #isa #juniper #microsoft #sa #ssl #vpn #webvpn

It has been a while since my last post, but time is short these days. Today I had to troubleshoot a Microsoft IAG appliance. Microsoft IAG stands for Microsoft Intelligent Application Gateway. And indeed, intelligent it is. NOT. I have seen and configured multiple SSL VPN solutions like Juniper SA, Citrix Access Gateway, Citrix Secure … Read More

Proxy

Where is the Internet Authentication Service?

René Jorissen on November 4, 2008 • 0 Comments • Tags: #2008 #authenticate #authenticate #ias #internet #isa #nap #networkaccessprotection #networkpolicyandaccessservice #networkpolicyserver #nps #owa #pda #radius #server #services #synchronization #technet #vpn #windows

Microsoft IAS server is often used as RADIUS server to authenticate VPN users or in conjunction with ISA reverse proxy to authenticate OWA users or PDA synchronization. Today I had to install an ISA reverse proxy server with ISA 2006 Standard and Exchange 2007. I wanted to install Microsoft IAS as RADIUS server to authenticate … Read More

Firewalling, IPSec / SSL VPN

Microsoft Outlook through Citrix Access Gateway SSL IP VPN

René Jorissen on October 31, 2008 • 1 Comment • Tags: #135 #1536 #access #administrator #ampr #ampr-inter #cag #citrix #epmap #exchange #gateway #inter #ip #microsoft #outlook #ssl #tcp #vpn

One of our customers wants you use their locally installed Microsoft Outlook through a Citrix Access Gateway (CAG). Sales people from that customer travel through the country and use the Outlook offline to read or prepare e-mail to send later. These people use UMTS technology to connect their laptops to the Internet. The customers wants … Read More

Management

Cacti Plugin Management and RealTime Plugin

René Jorissen on October 27, 2008 • 0 Comments • Tags: #21 #architecture #cacti #enable #management #pasql #plugin #real #real-time #time

I played a little with Cacti today and installed the Plugin Architecture 2.1. While reading some forums a lot of people are talking about the Plugin Management functionality. I looked and searched in my complete Cacti installation, checked all the configurations which can be made, but I couldn’t find anything about Plugin Management. After some … Read More