I have been receiving a fair amount of Spam from an e-mail forwarder. They are unwilling to correct their problems. Much of this Spam is in the form of bounce notifications. Attempting to reject other Spam resulted in more notifications. To control this Spam I implemented signed return path addresses. As a side benefit, I am also rejecting bogus notifications… Continue reading Signing Return Path Addresses with Exim
Cfengine is a declarative system configuration tool. This helps apply standards to system configuration. The configuration files specify the desired configuration and the engine applies these specifications to the system. It is useful to: Distribute configuration files; Install standard packages (including on Debian and Ubuntu with code provided here); Cleanup old files; and Ensure certain programs… Continue reading Cfengine 2 for Debian and Ubuntu
Squid is a proxy service for HTTP and other requests. This article covers installing it and configuring it to run on Ubuntu as a transparent proxy. This documentation includes configuring Web Proxy Auto-Discovery (WPAD) via DHCP and DNS. I run a heterogeneous configuration. This provided a number of challenges as various implementations of WPAD were encountered. Each seems to… Continue reading Setting up Squid Proxy on Ubuntu
The computer to which I had been synchronizing my Palm Tungsten E died a while ago. I explored the two options for connecting to my Ubuntu system using a USB cable. The fastest is to use a direct USB connection. However, I wanted to ensure I could synchronize over a network connection. I also configured… Continue reading Connecting a Palm via USB
Munin is a system monitoring program designed to capture and graph performance statistics with minimal configuration. It is significantly easier to configure than MRTG and has a wide variety of plugins. The Ubuntu (Debian) installer will setup a reasonable configuration on installation. It requires one server, and a client daemon on all monitored servers including… Continue reading Monitoring with Munin
WordPress is available as a packaged application for Ubuntu. However it requires a bit of post installation configuration. The installation will install the apache2 multi-user server if no server is installed. I modified the installation to run over top of an existing site. The default installation creates directories under /var/www, which I move to /srv.
Now I have replaced my old firewall with OpenWRT, I needed to enhance the configuration of dnsmasq to support the network. The old Ubunutu based firewall was already running dnsmasq, as does the DNS server on the LAN. I run a mixed network with wired and wireless clients on separate address ranges. DHCP services are… Continue reading OpenWRT and Ubuntu dnmasq setup