Author: Mattias Hemmingsson

Openldap with SQL Backend (Mariadb Centos 7 ) in Docker

We use Ldap for handling our users and I have spent time setting up Openldap and tryng to configur it. But now i have given up my ldap skills and setup my openldap to use a sql backend and then i config my user with SQL that i like more. I have also build i Dockerfile for docker that you… Read more →

Mesos cluster with Marathon running Docker

Hi So for hosting docker in large scale i have tested mesos cluster.  Here is a guide for setting up 3 nodes in mesos running Centos 7. And the adding Marathon to controll the dockers running. The network mesos-master 172.0.0.10 mesos-slave1 172.0.0.11 mesos-slave2 172.0.0.12   The node also have on nic connect to the network with internet access.   Security… Read more →

Elasticsearch controller

So we uses alot of easticsearch. And here is i small script to get status and do some simple task with es server. You can get cluster status and cron for index deletions.   import urllib2 # # # Clean up elastich search index by removing old stuff. #The defult ip to es server dhost=’10.101.1.31′ #The index name you are… Read more →

Python DOS protection (iptables,dos)

here are a small script I use to have some sort of dos protection on my webservers.   import subprocess whitelist=[‘192.168.1.2’] blockvalue=2 alertvalue=1 proc = subprocess.Popen(“netstat -ntu | awk ‘{print $5}’ | cut -d: -f1 | sort | uniq -c | sort -n”, shell=True,stdout=subprocess.PIPE) running = proc.stdout.read() runing_sorted = running.split(‘\n’) for r in runing_sorted: con =r.split() if len(con) ==2: #If… Read more →

Move an Megento site to new url

So I hade to move en megent site from topunder.se to test.topunder.se this is so that you can test and try new stuff on a site that is not you primary site. Moving magneto was some hazzel it not as easy as other site is take som sql to make it work.       First setup you webbserver  (This… Read more →

Foreman provision to bare and libvirtd (Centos7, foreman, libvirtd, KVM)

So I have started to play around with foreman and to get it to provision my diffrent servers. I started by starting up some local virtual servers on my laptop and played around with them. The flow is i started installing foreman as a virtual server. Then i provisin a new virtual server as bare matal (I created a virtual… Read more →

Build Openvpn centos 7

Here is how i build and setup openvpn on my centos 7 box. 1. Download and install openvpn latest Some yum packages   yum install openssl-devel lzo-devel pam-devel     https://openvpn.net/index.php/open-source/downloads.html   wget https://swupdate.openvpn.org/community/releases/openvpn-2.3.7.tar.gz tar zxvf openvpn-2.3.7.tar.gz cd openvpn-2.3.7 ./configure make make install # /usr/local/sbin/openvpn –version     So now we have the latest version setup and lets create some cert… Read more →

Python3 and rabbitmq

Im using rabbitmq in some of my python apps. Here is a small guide to get pyton3 to send and recive data from rabbitmq   I uses the code from https://code.google.com/p/py-amqplib/ And read some guide from http://blogs.digitar.com/jjww/2009/01/rabbits-and-warrens/ from 2009 !!!!   Get the pip you need to connect sudo pip3 install amqp     My python code for sending and reciving… Read more →

Raspberry pi And Tellusd

Im using tellus to get info from my sensors like huminity and temp. And to get to work am using my rasp pi to recive and send siganls. Here is a quick guide to install and setup tellusd on you raspberry.   1. Verify that tellus is there pi@raspberrypi ~ $ lsusb Bus 001 Device 002: ID 0424:9512 Standard Microsystems… Read more →

Setup SPI on Raspberry pi (mcp3008, Adafruit)

Im building my own watering system and to that I will have some sensores.. They are connected to my pi over SFI and a mcp3008 from Adafruit.   The gear http://www.adafruit.com/products/1989 http://www.adafruit.com/products/856 http://www.kjell.com/sortiment/el/elektronik/elektroniklab/kopplingsplatta-lodfri-p87886 http://www.elecfreaks.com/store/octopus-soil-moisture-sensor-brick-p-422.html   Setup the cables Use this guide and se how the you should connect the mcp3008 and the sensore. http://www.raspberrypi-spy.co.uk/2013/10/analogue-sensors-on-the-raspberry-pi-using-an-mcp3008/   Get the Pi ready  … Read more →

%d bloggers like this: