Code Snippets

RightScale RightScript To Update CentOS iptables Rules On RackSpace Node

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Recently while working on some node or instance automation using RightScale I needed to have some extra iptables rules created automatically when a new node booted. Initially I was just trying to do this via iptables commands which I note below but it would never work. After digging through the logs I realized that the iptables commands created by RightScale for the ServerTemplate I was using flushed iptables at the very end of the boot process and thus wiped out the iptables entries created by the RightScript I had created. To accomplish permanent iptables entries for a RackSpace node via RightScale you need to output the iptables command to a file in the location where the boot process picks them up after flushing the current ruleset. Below I describe my first attempt followed by the correct way to have iptables entries picked up by RightScale.

Technology Insights

LiteSpeed Web Server: Redirect All Web Traffic to HTTPS Except One Directory Or URL

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LiteSpeed web server uses the same Rewrite engine that Apache uses so most of the information you will find  on the Internet relates to Apache and not LiteSpeed. One of the projects I am working on redirects all web traffic that hits each virtual host from HTTP to HTTPS without exception. Recently it came up that we needed to do some API testing with a company that wanted to test on a development server to HTTP and not HTTPS. So I needed to figure out how to exclude a specific directory from our HTTPS Redirect Rule on one specific virtual host which turns out is really easy. Below I describe how to send all traffic except one directory to HTTPS via the LiteSpeed web admin.