Geek

Technical Writings

I have a soft spot in my heart for technical writing, partly because I edited a local computer magazine for a few years here in Portland. Below are some articles or resources I've written.

Address rewriting with sendmail genericstable

How to make locally generated mail appear to come from an e-mail address in a foreign domain.

January 25, 2006 • Read more…

Alpine on Mac OS X

Notes on building and running alpine under Mac OS X.

September 22, 2020 • Read more…

An Open Letter to Microsoft

Microsoft-borne worms and viruses are a boon to IT workers!

September 28, 2004 • Read more…

BIND for the Small LAN

How to configure BIND 9 to act as a caching nameserver or as the nameserver for a local domain.

May 24, 2007 • Read more…

BPM Delay Settings

Delay times for various beats-per-minute values.

December 26, 2022 • Read more…

Building Sendmail Mailing Lists in LDAP

If you already keep e-mail addresses in an LDAP database, it’s possible to tweak things a bit so that sendmail can lookup mailing list addresses in it.

June 04, 2004 • Read more…

DiG HOWTO

How to use dig to query DNS name servers.

May 11, 2006 • Read more…

Exim as an SSL/TLS client

How to configure exim version 4 to provide a client certificate when transfering mail over an SSL/TLS connection.

May 04, 2005 • Read more…

Extracting Google Queries from Apache Logs

How to extract from your Apache logs the Google queries that lead people to your web site.

February 21, 2019 • Read more…

Failover with ISC DHCP

How to set up the ISC DHCP daemon with load sharing and failover capabilities.

April 11, 2008 • Read more…

GPG Quick Start

A quick HOWTO for getting started with GnuPG.

October 07, 2016 • Read more…

Notes on UTF-8 and locales

Notes on using UTF-8 and locales on Linux systems.

March 23, 2005 • Read more…

OpenSSL Command-Line HOWTO

The openssl application that ships with the OpenSSL libraries can perform a wide range of crypto operations. This HOWTO provides some cookbook-style recipes for using it.

September 13, 2016 • Read more…

This little how-to is about getting pine (or alpine) and, to a lesser extent, fetchmail to work cleanly with Secure Sockets Layer (SSL) certificates. There’s some OpenSSL trivia explored along the way, too.

November 06, 2006 • Read more…

RCS HOWTO

How to use RCS, the Revision Control System.

March 16, 2005 • Read more…

RPM .spec Files

For work and pleasure, I sometimes build binary rpm packages. Here’s a little intro to rpm building