Changing SSL TLS Cipher Suites in Windows and Linux

Changing SSL TLS cipher suites on Windows Server 2012 R2I have added a basic guide for changing SSL TLS cipher suites that Windows Server IIS and Linux Ubuntu Apache2 use. Allowing only secure ciphers to be negotiated between your web server and client is essential. This guide will go through how to change and select the different ciphers for both Windows server 2012 R2 and Ubuntu 14.04 in order to help mitigate some of the vulnerabilities in the SSL/TLS protocols.

Read further on the Resource page for changing SSL TLS Cipher Suites here.


Linux Firewall

Linux FirewallCheck out the Linux Firewall mini setup guide which demonstrates the use of iptables in Linux. Here I demonstrate a few basic commands and rules and explained how we can allow and deny specific traffic on your Linux server. The scenario is for typical web server allowing only HTTP, HTTPS and SSH. Host based firewalls are often overlooked relying solely on perimeter defenses however are an important aspect of protecting your endpoint whether that is on a server or workstation. Iptables in built into Linux is a pretty capable command line based stateful firewall. Once you have the hang on the syntax it is fairly straightforward to implement and customize to your own requirements.

Linux Firewall iptables
Linux Firewall iptables

Click to check out the full Linux Firewall iptables mini guide here.



Installing VirtualBox Guest Additions in Kali Linux v1.x

A brief summary of the commands needed to install VirtualBox Guest Additions in Kali Linux v1.x. Having the Guest Additions installed is very useful, being able to copy and paste text like bash lines like the below is extremely useful. There is also the extra screen options such as the transparency mode. Being able to copy files in and out of the system into the host is also very useful.

Linux headers need to be updated.

Copy the file to the Desktop.


Make it executable:

Install it:

kali Virtualbox
Installing VirtualBox Guest Additions on Kali Linux version 1.x

Reboot for a final time.

After it has successfully installed you will now be able to go full screen, add in file sharing options, copy and paste and clipboard functionality. Enjoy.



Cisco ASA in GNS3

Having spent many hours over several days trying to get to a point were I could run a Cisco ASA in GNS3 in stable condition has proven to to be harder than first thought. However I now have a set of configuration options specific to the Cisco ASA to keep it running in a stable manner in GNS3. Check it out under my  Labs and Projects menu here, let me know your thoughts or any other better ways to achieve this.

Follow the link here to creating a Cisco ASA in GNS3 here :

Cisco ASA in GNS3