Category Archives: How To

What is GRSecurity

Grsecurity® is an extensive security enhancement to the Linux kernel that defends against a wide range of security threats through intelligent access control, memory corruption-based exploit prevention, and a host of other system hardening that generally require no configuration. It has been actively developed and maintained for the past 15 years. Commercial support for grsecurity is available through Open Source Security, Inc.

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How to Install and configure Apache Storm

STORM INSTALLATION SETUP Before setting up Apache Storm, Zookeeper server must be setup in the cluster, which takes the main responsibility of running Storm cluster. Zookeeper is not used for message passing, so the load Storm places on Zookeeper is quite low. Single node Zookeeper clusters should be sufficient for most cases, but if you want failover or are deploying large Storm clusters you may want larger Zookeeper clusters. Installing and Setting up Zookeeper: # cd /usr/local # wget http://mirror.nexcess.net/apache/zookeeper/stable/zookeeper-3.4.6.tar.gz # tar -xvf zookeeper-3.4.6.tar.gz #…

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VPN CLIENT INSTALLATION on Linux

VPN INSTALLATION on Linux [root@app-01 ~]# uname -a Linux app-01 2.6.32-431.11.2.el6.x86_64 #1 SMP Tue Mar 25 19:59:55 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux [root@app-01 /]# mkdir download [root@app-01 /]# cd download/ [root@app-01 download]# ll total 0 [root@app-01 download]# mkdir vpn [root@app-01 download]# cd vpn/ [root@app-01 vpn]# ll total 0

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