Category: Web

Maxscale Sql scaling with mariadb Cluster on Centos in Docker

So scaling sql server has now bean easy with mariadb maxscale. Here i uses it to connect to my mariadb cluster and setup two new servers. One is a loadbalanser and onw is a read/write splitter 1.First prep your mariadb servers with som users for you maxscale CREATE user ‘maxscale’@’%’ identified by ‘maxscaleW222’; GRANT SELECT ON mysql.user TO ‘maxscale’@’%’; GRANT… 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 →