Archive for the ‘IT’ Category

Asterisk – massively speeding up those REGISTER requests

Thursday, August 1st, 2013

So recently I started bumping into an issue where I would see a buildup of traffic in the RX queue of asterisk’s SIP port 5060 (udp bound). After some scavenging of the code I quickly came to realize that asterisk only processes a single incoming SIP request (or response) at a time. So I cooked a rather crude patch (that I for the shame of it won’t share here) in an attempt to figure out what went wrong.

Using php-fpm and mod_proxy_fcgi to optimize and secure LAMP servers

Wednesday, January 16th, 2013

So up until now I’ve been using mpm_itk or mpm_peruser – both with advantages and disadvantages in an attempt to secure web content. Both of these is essentially a forking mpm, kills Keepalive to a greater or lesser extent, and almost as important – neither is supported by mainline apache (so you’re on you own). Personally I prefer mpm_worker (or more recently mpm_event) since it’s threaded, and I find that it uses less resources (in terms of memory mostly). A lot of movement has also been happening with respect to FastCGI and the advantages are very good, both in terms of security and reliability (in theory).

Outlook hamstrunged ULS progress

Friday, August 24th, 2012

I’m not one for highly controversial titles. But today Outlook wasted a couple of hours of my life. Instead of posting big explanations I think I’ll rather let the pictures do the talking:

DSL (iBurst) bonding options

Tuesday, April 24th, 2012

So recently I started getting a lot of inquiries about ADSL line bonding and decided it was time to start investigating. Various options have presented itself, but very few true solutions.