New Python Project for RPZ Blacklists

I have been working with RPZ policy blacklists to do DNS firewalling. A great introduction to DNS firewalling can be found here An overview of the syntax can be found at this link I had previously done blacklisting at home using pi-hole and wanted to migrate to an RPZ based solution. I wrote a python… Continue reading New Python Project for RPZ Blacklists

Moving SuperPutty config to Linux Pac Manager

I have transitioning from a primary Windows desktop environment to a Linux desktop, and found that I wanted to get my saved connections from superputty, which my co-workers are using to a Linux tool. I found a tool called PAC Manager which does what I needed. The main thing I wanted was a tree hierarchy… Continue reading Moving SuperPutty config to Linux Pac Manager

Better way of formatting Mac Addresses in Python

Following up on my Formating mac addresses using python post I have a better way of using Mac addresses.  I have been using the netaddr library for ip and mac address manipulations.  To convert a binary mac address to an EUI object you can use the following code import netaddr from netaddr import EUI def convertMac(octet): """ This Function… Continue reading Better way of formatting Mac Addresses in Python

Mercurial for Tracking Cisco Configs

As I have been working with different routers I have squired a small repository of configuration files that I use for examples, backups, and ways of remembering the way the network was set up before a change. At the start I maintained each config as a separate file, usually containing the date (i.e. router1-071012.cfg). While… Continue reading Mercurial for Tracking Cisco Configs

Allowing UNI or protected ports on Cisco switch to reach each other using IP

When deploying Metro Ethernet service and Colocated services, best practice it to put the ports in protected mode or uni. This is to prevent customers from causing interference to each other with layer2 protocols. It also allows the user of service provider traffic filtering. The downside is without additional configuration, customer traffic to another customer… Continue reading Allowing UNI or protected ports on Cisco switch to reach each other using IP