Install Varnish on Linux Debian or Ubuntu for WordPress

  What is Varnish? (From Wikipedia) Varnish is an HTTP accelerator designed for content-heavy dynamic web sites. In contrast to other web accelerators, such as Squid, which began life as a client-side cache, or Apache and nginx, which are primarily origin servers, Varnish was designed as an HTTP accelerator. Varnish is focused exclusively on HTTP,… Read more »

Installing and Configuring Exim4 to Smarthost on Linux Debian or Ubuntu

1. Update source¬†repositories apt-get update && apt-get -y upgrade 2. Install Exim4 apt-get install exim4-daemon-light 3. Create and edit the following file location: vi /etc/exim4/passwd.client 4. Add the following line smarthostaddress:login:password example: 5. Create the following file vi /etc/exim4/exim4.conf.localmacros 6. Add the following line AUTH_CLIENT_ALLOW_NOTLS_PASSWORDS = 1 7. Reconfigure Exim4 dpkg-reconfigure exim4-config 7a. Select… Read more »

Setting up Observium

What is Observium? Observium is an autodiscovering SNMP based network monitoring platform written in PHP which includes support for a wide range of network hardware and operating systems including Cisco, Windows, Linux, HP, Dell, FreeBSD, Juniper, Brocade, Netscaler, NetApp and many more. ¬†Observium has grown out of a lack of network monitoring platforms which are… Read more »

How to Install and Configure Splunk on Linux

Splunk is a software package for sending logs from a variety of server types or devices to a centralised repository for the ability to do searching, monitoring and analyzing of big data using a web style interface console. This Example In this example I will be installing Splunk version 6.0 on a virtualised Linux Debian… Read more »

How to install and configure fail2ban on Linux

How to install and configure fail2ban Reducing your attack area is ideal but in the situations where you need to expose services to the wild, you should reduce the effectiveness of attacks, this is where Fail2Ban comes in handy, it constantly reads logs you specify in the configuration file for multiple user pass attempts, if… Read more »