Archive for April, 2014

Fudge Cam – Python Code

April 22nd, 2014 No comments

This project achieves many objectives. It gives me a chance to learn how to use Python to control external devices (in this case a very cheap motion detecting sensor) and it also makes my girlfriend happy. Even though she does (rightly as there is a time and a place..!) complain about my “enthusiasm” for getting a pin to connect to a software interrupt. Anyway. Here it is:

fudgeCapturing the antics of Fudgie the Hamster!

Detects motion using a PIR Motion Detection GPIO sensing kit to leverage the GPIO pins on the Raspberry Pi, then takes photos using the Raspberry Pi Camera Module and updates Twitter with a random rant from Fudgie himself. Read more…

Categories: Raspberry Pi Tags:

Cisco ASA Java 7 update causes ASDM not to Launch

April 14th, 2014 No comments

The recent update to Java has caused problems when the web interface of the Cisco ASDM has a security problem such as an unsigned or expired certificate. Java no longer allows ASDM to launch. The error message is shown as “This application will be blocked in a future Java security update because the JAR file manifest does not contain the Permissions attribute”. This problem is fixed by adding a site exception to Java. Read more…

Categories: CISCO, Security Tags:

Cisco ASA Debug, Syslog and Logging Lists

April 10th, 2014 No comments

When troubleshooting and using debug, it is possible to create logging lists to filter out messages which are unrelated to your problem.

%ASA-2-106016: Deny IP spoof from ( to on interface Inside

logging enable
logging timestamp
logging buffered warnings
logging buffer-size 65000
logging list ACL-MESSAGES_LOG-LIST message 106023
logging console ACL-MESSAGES_LOG-LIST
logging monitor ACL-MESSAGES_LOG-LIST
show log

Categories: CISCO, Protocol Analysis Tags:

How to export the SSL certificate from a Wireshark packet capture

April 10th, 2014 No comments

How to obtain the SSL certificate from a Wireshark packet capture: Read more…

Categories: SSL/TLS Tags:

tshark – Capturing Packets from the Windows Command Line

April 9th, 2014 No comments

A quick aide-memoir about how to go about capturing traffic from the Windows command line.  You must be in the Wireshark directory (or have the location in your PATH environment settings):

1. Find interface Index:

C:\Program Files (x86)\Wireshark>tshark -D
1. \Device\NPF_{B3BA19B1-3083-4FF5-9CA5-09E33CABEC93} (Microsoft)
2. \Device\NPF_{E7CE2EDC-D965-44DF-A7F2-A14B4A762B40} (Sun)
3. \Device\NPF_{B88703B3-2E09-4FC7-A061-21A94A22BBBE} (Intel(R) 82579LM Gigabit
Network Connection) Read more…

Categories: Protocol Analysis Tags:

F5 BIG-IP: Monitoring TCP Applications

April 4th, 2014 No comments

LTM has built-in application health monitor templates for many TCP-based application protocols (FTP, HTTP, HTTPS, IMAP, LDAP, MSSQL, NNTP, POP3, RADIUS, RTSP, RPC, SASP, SIP, SMB, SMTP, SOAP).

If you need to monitor an application which depends on an upper layer protocol for which there is not a built-in monitor template, LTM provides a number of options to build a monitor based on the underlying transport layer protocol– TCP. Read more…

Categories: Network Design Tags: