How to Install MRTG with SNMP on Linux RedHat 6.5 / CentOS 6.5

Before you Install MRTG please verify apache is installed on your machine

[root@mysql01 ~]# vi /etc/hosts
 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
192.168.49.19 mysql01 Continue reading "How to Install MRTG  with SNMP on Linux RedHat 6.5 / CentOS 6.5" 

How to Install RHQ on CentOS 6.5

Install PosgreSQL

3.1.1. Type ‘yum install postgresql*’ making sure to include the asterisk (*)
3.1.2. Type ‘y’ when prompted (happens twice)

Confirm java version

4.1.    Type ‘java –version’
4.2.    Confirm it’s running at least 1.6 and using OpenJDK (or Oracle/Sun Java or JRockit, but NOT GNU Libgcj)

Continue reading “How to Install RHQ on CentOS 6.5”

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
 Continue reading "VPN CLIENT INSTALLATION on Linux" 

How to verify DDOS attack with netstat command on Linux Terminal

How to verify DDOS attack with netstat command on Linux Terminal

Some examples with explanation

netstat -na

This display all active Internet connections to the server and only established connections are included.

netstat -an | grep :80 | sort

Continue reading “How to verify DDOS attack with netstat command on Linux Terminal”

How to setup Network File Server on CentOS / Redhat with Automatic Backups — RackSpace

NFS SERVER SETUP ON CETNOS 6.5 / Redhat 6.5 / Fedora

In this tutorial let us see how to install and configure NFS server and how to share files between NFS server and clients. Though i have tested these steps in Cent-OS 6.5 32 bit edition, it will work on RHEL/Fedora/ 64 bit architecture.

Scenario

NFS Server Operating System : CentOS 6.5 64 bit (Minimal server install)

NFS Server Operating System  : CentOS 6.5 64 bit (Minimal server install)

NFS Client Operating System  : CentOS 6.5 64 bit (Desktop Minimal)

NFS Server IP Address              Host rackspace-nfs01: 192.168.58.152

NFS Server IP Address              Host rackspace-nfs02: 192.168.58.153

NFS Client IP Address               Host rackspace-jon: 192.168.58.154

Continue reading “How to setup Network File Server on CentOS / Redhat with Automatic Backups — RackSpace”