Configuring RANCID on CentOS 6.5

RANCID stands for really awesome new cisco configuration differ[1]and polls Cisco devices to geta copy of the configuration and an inventory of the hardware and commitsthe details to a version control system such a CVS or SVN. The versioncontrol is used to maintain a history of the changes, and any changes tothe configuration are reported. There are a number of guides availablefor installing RANCID[2,4,5], but I’ve documented thesteps I took here for my reference.

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Snort 2.9 on CentOS 6.3 (continued) with Barnyard2

This is a continuation of the post on installing Snort 2.9 on CentOS 6.4(http://nkush.blogspot.com.au/2013/03/snort-29-on-centos-63.html). Thispost installs Barnyard2 on the host. Barnyard is an output system for Snort. If effectively allows bettersnort performance by enabling Snort to produce binary output which isthen processed by Barnyard. Barnyard processes the binary Snort output files (unified2 binary) andstores the processed data into a database back-end, for example MySQL.The advantage of using Barnyard instead of the database output fromSnort is that Barnyard is able to “cache” the data in case the databaseis unavailable.

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Installing and Configuring OpenVPN 2.3 on Microsoft Windows Small Business Server 2003

My previous posts(http://nkush.blogspot.com.au/2012/08/installing-openvpn-22-on-centos-63-64bit.htmlandhttp://nkush.blogspot.com.au/2011/10/installing-openvpn-22-on-centos-57.html)have been on installing OpenVPN on Linux. This post is slightly different as it installs and configures OpenVPN ona Microsoft Windows Small Business Server (SBS). The SBS installation isalso different from the previous write-ups since this configuration usesEthernet bridging instead of tunneling. Although SBS comes with Layer2 Tunneling Protocol (L2TP) andPoint-to-point Tunelling Protocol (PPTP) for Virtual Private Network(VPN), some users may want to use an Secure Sockets Layer (SSL) basedVPN such as OpenVPN.

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Connecting to OpenVPN from a Mac using Tunnelblink

To connect to an OpenVPN server you need an appropriate OpenVPN clientinstalled to establish the SSL link. For Apple Mac OS X systems,TunnelBlick (http://code.google.com/p/tunnelblick/) is a good graphicaluser interface. At the time of this blog the current latest stableversion of TunnelBlick available was 3.2.7. These instructions wereexecuted on an Apple iMac running Mac OS X 10.7.4. As with all otherposts on this blog, the purpose of this post is not to provide atutorial, but instead to documents the steps taken, for my ownbenefit.

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