So after setting up Asterisk with a working DAHDI configuration for the PBX project, next was configuration for IP phones using PJSIP and provisioning them. Asterisk has a built-in module called res_phoneprov which handles HTTP based phone provisioning but that didn’t work for me – I just couldn’t have it [...]

So I got an opportunity to set up Asterisk PBX with a Reliance Communications E1 line. I have worked with Asterisk PBX, but without PSTN interfacing. This post is about what all stuff I have done to get a Reliance E1 line with Digium TE131F card. Having explored a lot [...]

I’m a huge fan of ZFS because of its performance and other features like snapshots, transparent compression. In fact I had switched to FreeBSD for servers just because it had native ZFS support. But as of Ubuntu 16.04, ZFS is officially supported for non-root partitions. Now I’m migrating a FreeBSD [...]

Of late, many mainstream distributions have been switching to SystemD as their init system. This includes Debian (since Debian 8) and Ubuntu (since Ubuntu 15.04). In the traditional SysV init system we used to have stuff like spawn-fcgi or custom scripts for starting a FastCGI process and having the web [...]

Recently I moved from Apache to Nginx on one of my servers due to increase in traffic. But I was using HTTP Basic authentication with group based authorization on Apache in this manner: However, there’s no AuthGroupFile  in nginx. But LUA, a programming language is supported in nginx. So here’s [...]