it has recently been heavily hinted to me that i might be tasked with building a new mail system soon, which got me thinking about how to do it better than i have before. i haven’t built a mail system from scratch in about a year, and there are some things i want to try that i either didn’t want to do last time, or didn’t have time to implement. my planning, design, and implementation process will be put here so that i have a future reference, and also in case it helps others.
Continue reading “building a new mail server – planning”
network monitoring is, in theory, a relatively simple thing : watch X for Y conditions, and tell Z what you find. most systems break this down into collection, analysis, and alerting. today i’m looking at data collection for monitoring systems.
Continue reading “ruminations : network monitoring (data collection part one)”
DNS servers are pretty simple things from a service standpoint, but can be annoyingly difficult to setup and configure if you aren’t used to it. the variety of packages, and options within those packages, makes this even more daunting. with that in mind, i’m going to cover just a couple of what i think are pretty useful options using bind9 on ubuntu 10.10, though the bind and OS version here aren’t too important and what i provide here will likely work with little change on similarly versioned platforms.
since i’m dealing with a recursive DNS server instead of an authoritative one, we won’t need to worry about many of the more complex options for bind, and we can have a pretty stock install work for us.
Continue reading “building an ubuntu 10.10 recursive DNS server”
i’ve got a demo instance of iphive running, so if you want to see how it works feel free to email me and i can get you access to try it out. the demo is using the latest version of the code as of 2011.4.4 and is using private address space for the example database.
the next version is being written to accommodate IPv6, and will also have better user-accounting facilities to better track the who-does-what aspect of inventory management. at that time i’ll also be upgrading to the newest version of the mite framework, which will unlock a whole slew of possible enhancements and improvements.