Amazon ELB – monitoring packet count and byte size with Amazon Cloudwatch and VPC flow logs
We recently exceeded the capacity for one of our Amazon ELBs in a 60 second period. One of the points of our debrief was to monitor the network from the ELB.…
SSL – Amazon ELB Certificates
I always forget the order to concatenate SSL certificates and to upload to Amazon ELBs as well as commands to verify SSL certificates. Extract dates from certificate echo | openssl…
Automatically update Amazon ELB SSL Negotiation Policies
A quick script to update Amazon ELB SSL Negotiation policies for all Amazon ELBs. The security policies are managed from Amazon and will only update the predefined security policies, choosing…
Amazon Opsworks – Dependent on Monit
I recently converted a number Amazon Opsworks instances to be time based, so that they shut down at the end of the working day. After doing so, I kept seeing…
Awk craziness: Processing log files
A while back I wrote an awk script to process a custom log file to work out how an application was performing over a period of time. The following script…
Elastic Search Presentation
I’ve implemented a number of sites with Elastic Search and recently had a two-day spike to implement Elastic Search for Photobox’s backoffice systems. As a result I have since wrote…
Requests per second from Apache logs
Whilst recently looking into usage of SSL, I needed to analyse some logs from apache to determine requests per second. Initially I wrote a quick bash script to do this,…
Hackday @ Everlution
At Everlution we did a hack day to help motivate developers and to get the team working together. We started at and finished at 5pm. It was pretty impressive what…
apt-get unattended / non-interactive installation
I previously wrote about “Installing Java & MySQL – unattended/non-interactive installation”. Whilst using slack, I have been running apt-get during postinstall rather than preinstall. Files are transferred from slack after…
PHP apache_note, Graphite & Logster for logging
A nice tip for logging data against apache logs within requests. Apache_note is a wrapper for Apache’s table_get and table_set. It edits the table of notes that exists during a…