Test driving App Firewall with IPTables
With more and more application moving to the cloud, web based applications have become ubiquitous. They are ideal for providing access to applications sitting on the cloud (over HTTP through a standard web browser). This has removed the need to install specialized application on the client system, the client just needs to install is a … Continue reading Test driving App Firewall with IPTables
Worth Reading: Extend your ITIL
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Usable Security Highlighted at NDSS 2017
A number of seminal papers appeared towards the end of the 20th century calling for more attention to be paid to the human in the security loop. For example, Anne Adams and Angela Sasse’s “Users are not the Enemy” and Mark Ackerman and Lorrie Cranor’s "Privacy critics: UI components to safeguard users' privacy." The research field of Usable Security was thereby launched, and quickly garnered interest amongst academics and in industry. Almost two decades later this field has achieved independent status with a number of conferences and workshops being dedicated to this research field.
Melanie Volkamer
Karen Renaud
The Rising Tide of CCIE Written Costs
In CCIE news this week, Cisco has raised the price of their exams across the board. The CCNA has moved up to $325, and the CCIE Written moves from $400 to $450. It goes without saying that there is quite a bit of outcry in the community. Why is the price of the CCIE Written exam surging so high?
No Such Thing As A Free Test
The most obvious answer is that the amount of work going in to development of the exam has increased. The number of people working behind the scenes to create a better exam has caused the amount of outlay to go up, hence the need to recover those costs. This is the simplest explanation of all the cost increases.
As Cisco pours more and more technology into the tests, the amount of hands and fingers touching them has gone down. At the same time, the quality of the eyeballs that do look at the exam has gone up. It’s a lot like going to a specialist doctor. The quality of the care you receive for your condition is high, but the costs associated with that doctor are higher than a regular general practice doctor. Cisco’s Continue reading
Python – Kirk Byers Course Week 2 Part 4
This post will describe the exercises and solutions for week two of Kirk Byers Python for Network Engineers.
The final assignment in week 2 is the following:
IV. You have the following string from "show version" on a Cisco router cisco_ios = "Cisco IOS Software, C880 Software (C880DATA-UNIVERSALK9-M), Version 15.0(1)M4, RELEASE SOFTWARE (fc1)" Note, the string is a single line; there is no newline in the string. How would you process this string to retrieve only the IOS version: ios_version = "15.0(1)M4" Try to make it generic (i.e. assume that the IOS version can change). You can assume that the commas divide this string into four sections and that the string will always have 'Cisco IOS Software', 'Version', and 'RELEASE SOFTWARE' in it.
The first thing we want to do is to split the string into several parts and put them in a list. We were told that we could use the comma as a separator. We’ll print the list and show the type to show what is going on.
cisco_ios_list = cisco_ios.split(",")
print(cisco_ios_list)
print(type(cisco_ios_list))
This gives us the following output:
daniel@daniel-iperf3:~/python/Week2$ python3 ios_version.py ['Cisco IOS Software', ' C880 Software (C880DATA-UNIVERSALK9-M)', '\n Version 15.0(1)M4', Continue reading