Tag Archives: Security - Page 4

Monitoring devices by sending syslog to OSSEC

Lately I’ve been working a lot with OSSEC, which is an open source host-based intrusion detection system (HIDS). This has primarily involved installing Linux or Windows based agents onto servers and configuring them to point to the OSSEC server, a process which is straight forward and fairly well documented. Unfortunately you aren’t going to be able to run an agent on some devices, such as those provided by Cisco or Juniper, so we instead have to look towards agentless or syslog monitoring.

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How to use the CloudNS DNS resolver with Windows

In this post I outline how you can set up and use the CloudNS DNS resolver on a Windows computer. CloudNS is a free security focused service currently providing two servers in Australia for DNS resolution. CloudNS only allows connections with DNSCrypt which ensures messages are safely and securely sent to the resolver and not tampered with, DNSSEC is also supported. The resolvers also support Namecoin resolution which is an alternative decentralized DNS system, allowing you to start accessing .bit domains. CloudNS also does not log any of the queries or connections taking place, keeping things anonymous.

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Problems with WinSCP verifying SSL certificates

Lately I’ve been working on setting up a file server on an Amazon ec2 instance with ProFTPD so that I can upload files using FTPS/SFTP. I had some issues getting FTPS to work correctly despite using a Rapid SSL certificate from GeoTrust that I purchased. I attempted first with FileZilla, and then with WinSCP but both gave me the below error and had problems verifying my SSL certificate.

Unable to get local issuer certificate. The error occurred at a depth of 2 in the certificate chain.

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Overview of Ruxcon 2012

I attended the Ruxcon 2012 computer security conference this year and thought I’d post an overview of the event. I’ll cover the awesome presentations that I saw as well as the capture the flag hacking game. I have now attended Ruxcon for the past 3 years and can definitely say that it only keeps getting better, this year was by far the best thus far and I can’t wait to go again in 2013. If you are at all interested in security and are in Australia I highly recommend going.

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