Tag Archives: Security

Creating VPNs with OpenVPN

Posted on October 21, 2009 by Ajitabh

Introduction A VPN is a set of tools which allow networks at different locations to be securely connected, using a public network as the transport layer. A VPN produces a virtual “dedicated circuit” over the internet and use cryptography to … Continue reading →

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Tightening up OpenSSH

Posted on March 29, 2009 by Ajitabh

Often I am required required to run a public ssh server, so its a good idea to restrict the OpenSSH server as much as possible. While this post does not cover all possible methods of securing the OpenSSH server, but … Continue reading →

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Security Softwares

Posted on August 16, 2005 by Ajitabh

On Unixreview.com came across a secrity tool to be used for SSH servers. Denyhost is a python script which finds out invalid login attempts from the log files and can add the IP address from where the login attempt was … Continue reading →

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