Monthly Archive:: April 2013

Site-to-site VPN pfSense and Amazon VPC

How to create a Site-to-site VPN between pfSense and Amazon VPC using Virtual Private Gateway feature.   From here, I presume that you already know what is pfSense and Amazon VPC, however instead of creating an instance in Amazon and use an IPsec software, we will be using here a VPN Gateway in Amazon that… [read more]

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SSH Two-factor authentication

How to improve SSH security using Two-factor authentication.   If you are in a process of implementing ISO 27001, PCI-DSS or any other standardization for security, you definitely asked yourself about SSH Two-factor authentication or SSH Dual authentication as other may say. There are some software that can accomplish that task, but the most famous one these… [read more]

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Connecting your Linux to a Cisco AnyConnect (SSL) – part 3

Hi there !   This is the final part of using openconnect  - You can check the older ones below: http://www.heitorlessa.com/connecting-your-linux-to-a-cisco-anyconnect-ssl-part-1/ http://www.heitorlessa.com/connecting-your-linux-to-a-cisco-anyconnect-ssl-part-2/   As mentioned previously, we will be covering here: How to create a script to monitor such VPN using ICMP, and restart that VPN if it is down   I would say, this… [read more]

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Connecting your Linux to a Cisco AnyConnect (SSL) – Part 2

Hey you! As said in the part 1 of this article, I will be covering here: How to create a openconnect init script So, concerning the init script I will be posting parts of the script first, and then will put a link for download at the end. First of all, we need the shebang… [read more]

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Connecting your Linux to a Cisco AnyConnect (SSL) – Part 1

Hi there ! Have you ever wondered an easier way to connect to a Cisco SSL VPN using Linux? I have been given such task to replace an old OpenVPN to a Cisco one, then I automatically thought that Cisco would provide a great client as well as they offer for Windows…. However the ones… [read more]

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NCDU – Different way to obtain Disk Usage in Linux

Hi ! Have you ever wondered a different way of getting Disk usage stats? Are you tired of using commands like “df -h”, “du -hs”, combining with several other ones in pipe? What if I tell you that there is an easier way to find out where your free space is going? It’s time to… [read more]

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Web conference, meetings and remote support for free

Hi there ! I am delighted to show you guys some useful tools to use in your routine as my first post in this new space. As most of you tech guys, we need sometimes to share screen or even do a remote access to anyone in an easy and safe way. So for this,… [read more]

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