dns

Instructions on how to set up your dns SPF record to improve email delivery and prevent forged email from your domain.

Quoted: include:aspmx.googlemail.com

OK - you have to go BACK a version in the Google Apps control panel in order to direct your AppEngine app to a naked domain!

In Google Apps Domain Settings
(https://www.google.com/a/cpanel/YOURDOMAIN/DomainSettings)

set Control Panel to "Current Version" (and NOT Next Generation).

This will let you type an arbitrary URL (including a naked domain) instead of requiring a sub-domain.

You still have to add the A records in your DNS to point to ghs.google.com - actually google recommends these ip addresses:

* 216.239.32.21
* 216.239.34.21
* 216.239.36.21
* 216.239.38.21

In this tutorial I will describe how to install and configure MyDNS and MyDNSConfig on Fedora 8. MyDNS is a DNS server that uses a MySQL database as backend instead of configuration files like, for example, Bind or djbdns. The advantage is that MyDNS simply reads the records from the database, and it does not have to be restarted/reloaded when DNS records change or zones are created/edited/deleted. A secondary nameserver can be easily set up by installing a second instance of MyDNS that accesses the same database or, to be more redundant, uses the MySQL master / slave replication features to replicate the data to the secondary nameserver.

This tutorial shows how to set up an Ubuntu Hardy Heron (Ubuntu 8.04 LTS) based server that offers DNS services using BIND. This article is written for the 32-bit version of Ubuntu 8.04 LTS, but should apply to the 64-bit version as well.

Quoted: Dan Kaminsky of IO Active provides some information about recently announced cache poisoning flaw, but gives administrators 30 days to patch systems before explaining it in full. Read this blog post by Robert Vamosi on Defense in Depth.

See also: http://www.matasano.com/log/1089/dan-kaminsky-could-have-made-hundreds-of-thousands-of-dollars-with-this-dns-flaw/

Quoted: IP address management lets customers manage DNS and IP address data at company-wide level, delivering unified management, monitoring, and administration, and providing for appropriate levels of centralized auditing and reporting.

Quoted: intoDNS checks the health and configuration of DNS and mail servers.

This tutorial shows how to set up a Gentoo 2007.0 based server that offers all services needed by ISPs and hosters: Apache web server (SSL-capable), Postfix mail server with SMTP-AUTH and TLS, BIND DNS server, Proftpd FTP server, MySQL server, Courier POP3/IMAP, Quota, Firewall, etc. This tutorial is written for the x86 version of Gentoo 2007.0, but should apply to other architectures with very little modification.