TSIG (Transaction Signatures) provides authentication and data integrity for the communication between servers. This communication includes zone transfers, notifications, recursive queries or dynamic updates. A shared secret will be generated in one of both servers and the same secret with
Monitoring DNS queries with bindgraph
Bindgraph is a tool that allow us see the number of DNS queries of a graphical way, taking the result of the queries resolved by our DNS server registered in a log file. For this, We’ve to configure logging for
A bit of Bind (Part II)
Hello everybody!! For today i have the second part of bind. In this part i’ll explain how to ensure our environment and prevent the DNS cache spoofing with the DNS extensions DNSSEC. DNSSEC offers the authenticity and integrity of the
A bit of Bind (Part I)
Hello everybody!!! For today i have a bit of bind. Bind is a name services, is the most used but exists any more like djbdns, NSD, PowerDNS, etc… First we have to understand the DNS is a big distributed and