27 August 2010

Custom Sizing Your MMC RDP Console

Following on from yesterdays post I was looking at some of the options and realised that you actually set the size of you RDP console.Since I use a Mac Book Pro with a wide screen the standard resolution are not very helpful, and I like to have fixed size windows, changing them to use the [...]

Multiple RDP Consoles – Who Knew ?

I have been working with Windows folks for a long time, and I have not seen this tool used before. As a networking guy maybe I missed it. I often deploy a number of Windows servers to monitor and manage networks (typically with open source and Ciscoworks). I recently discovered the MMC Snap-in for Remote [...]

Flush DNS Cache on MAC OS X

Mac OS X – Clearing or flushing the DNS Cache Once you go to a Web site, or do any DNS lookup, the IP gets cached for quite a while. This becomes a royal pain if you’re a systems administrator who is in the middle of migrating domains from one server to another. Executing the [...]

Cisco Application Control Engine (ACE) – Introduction and Comparison With F5

My new interest of the moment is the Cisco Application Control Engine or ACE module. I have just received a pair of them and planning on starting the configuration in the next couple of days. So perhaps some discussion on the ACE is in order, and why I am considering using both F5 LTM AND the Cisco ACE in this network.

iTerm and Dynamips – Write to All Terminals at Once

I am often find myself needing to stop, make a configuration change to Dynagen, and then restart. To make sure I don’t miss anything I go to every screen and write the configuration.

In iTerm, there is the ability to send the same command to all screens at once, excellent!

Suspending and Resuming Dynamips

As someone who travels often, and always looking to make use of the travel time, I was pleased to find that I can suspend and resume the Dynamips routers. This saves me battery on longer trips, or lets me have more CPU when I running other applications such as Parallels / VMware to give me some Microsoft Visio joy. iTerm sessions are not terminated by doing this, they just don’t show any data until you resume the sessions.

Dynamips and the Leopard Terminal

I wanted Dynamips to act more like the way I think and it keeps on opening multiple terminal windows but I like to use iTerm.

Configuring iTerm for Dynamips

To get started with my lab faster I use iTerm to prepare a full set of possible sessions. This post walks through how to do this which should help you to get started faster. Also some keyboard shortcuts.

On Layer 2 Access Designs and MPLS

I looking closely at Data Centre Designs at the moment, and been considering whether a looped triangle or a looped square is the best for edge switches. I find it difficult to detect a difference that makes a clear purchasing decision. So I sat down to think about this. I did some pictures and thinking.

Unzip Cisco IOS Images for Dynamips

I have a directory ‘dynalab’ in my ‘Documents’ where I have put ALL my Dynamips / Dynagen related files. I created a directory there which has all my IOS images, this makes more sense to my mind. Makes it easier to backup.

Tips for Dynamips / Dynagen on Leopard OS X

Tips for Dynamips / Dynagen on Leopard OS X

Dynamips on a MacBook Pro

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I am doing some proof of concept for an MPLS data centre and did something I have not normally done. I used my MacBook Pro to run Dynamips / Dynagen. I am very pleased with 9 3640 routers running Enterprise Plus, and 2 2611 Routers with IP and running less than 60% CPU across both [...]