If you have ever uploaded an image to a switch that is not supported by that hardware you will be all too familiar with this. Keep in mind these instructions are written for a Cisco 3750x switch, other switches may be different. Now looking at the switch on the console it appears to be booting … Read more
In this post I will be showing how to configure an IP tables firewall on a Ubuntu Linux server. At first glance configuring iptables seems cryptic and complex but once you analyze the commands and understand what they are doing it becomes much easier to work with. There are a few things you will need … Read more
If you need your script to check if a file exists, for example before attempting to create one, it is relatively straight forward and easy to do so using the ‘os’ module. Below is a snippet of code that all it will do is check if a particular hard coded file exists, if it does … Read more
When running a python script it is many times beneficial to know where on the system the python file you are running is located, for instance if you have files in the same directory as your script that you need to read from or write to but you wont always know where your script will … Read more
Its possible that over time or when uploading new firmware to a switch the firmware that the switch is using to boot will become corrupt, in this case you will be left at a “switch:” prompt and will need to recover the IOS on the device. Below are the steps to do that assuming that … Read more
Gathering input from a user in your GUI is something that will need to be done often, one basic way is to use a simple text entry field which i demonstrate below. In this example I will be showing an example of user name and password entry fields, below is the base code we will … Read more