OptusNET Wireless High Speed Internet

We are the leader in delivering innovative communications, information and entertainment. We offer voice, data and video products and services over intelligent wireless, broadband and global IP networks that meet customers growing demand for speed, mobility, security and control. As a committed corporate citizen, we use our advanced communications services to address important issues confronting our society.

XenServer – Secure SNMP Installation (Version 3)

This tutorial describes a detailed procedure showing how to perform the installation of Secure SNMP (Version 3 ) on a computer running XenServer Remotely access the XenServer server via SSH. In our example, we are using the putty software to remotely...

UniFi – Where is ?

You will see in many of our configuration instructions. When following these instructions you are supposed to substitute with the corresponding location in your computer. Its location will vary depending on your operating system. Find in the following...

Wi-Fi KRACK, How to Protect Yourself

It was this morning revealed every Wi-Fi network is potentially at risk as a result of a vulnerability called 'Wi-Fi KRACK'. It allows 'snoopers' to eavesdrop on traffic between network devices (i.e. computers, laptops and tablets) and a wireless access...

Secure NTP template

The Network Time Protocol (NTP) is the de-facto means Internet hosts use to synchronize their clocks. A reliable and accurate notion of time is important for a number of services, including distributed applications, authentication services, multi-user...

How to Add Devices to LibreNMS Monitoring Tool

This guide focus on adding devices to LibreNMS tool for monitoring. Assuming that you have a working setup for LibreNMS monitoring tool, if not, follow the below guide. For a demo purpose, we will install and configure SNMP on the client servers (Linux...

Creating Ethernet loopback cable with RJ45 connector

This article will help us with a small hardware testing tool which helps verify whether interface port is working or not. The small testing tool is an RJ45 based Ethernet Testing tool which can be created within minutes by connecting wires as per defined...

Ransomware ‘Nyetya’ behind new global cyber attack

The computer virus that is affecting companies and institutions around the world is a new variant of ransomware called Nyetya -- WannaCry's bad cousin -- according to networking and security major Cisco. The new cyber attack started massively affecting dozens of...

Difference between QSFP, QSFP+ and QSFP28

SFP is short for small form factor. It refers to fiber optic transceivers supporting 1Gbps data rate. Except SFP, current market is full of various types of fiber optic transceivers, such as QSFP, QSFP+ and QSFP28. At the first sight, these transceiver...

Are your customers ready to repel ransomware?

More than four out of five (83%) resellers see ransomware attacks as the main threat – but most are not ready to counter any such attack. In a survey carried out for WatchGuard, 45% of resellers said they believed less than half of their customers would have the right...

How To Use SSHFS to Mount Remote File Systems Over SSH

In many cases it can become cumbersome to transfer files to and from a droplet. Imagine a development usage scenario where you are coding apps remotely and find yourself uploading a script repeatedly to your virtual server to test. This can become quite a hassle in a...

How To Set Up an NFS Mount on Ubuntu 16.04

NFS, or Network File System, is a distributed file system protocol that allows you to mount remote directories on your server. This lets you manage storage space in a different location and write to that space from multiple clients. NFS provides a relatively quick and...

Set up a CAcert SSL certificate for DirectAdmin

This is how to set up a SSL certificate on your server and running with it, using DirectAdmin on Debian GNU/Linux. All of the following tasks are done as root, from the command line: cd /usr/local/directadmin/conf create a private key: openssl genrsa -out cakey.pem...

Bash: How to send email from Terminal

With the minimum installation of any Linux operating system, you will not see most of the commands in your system. In minimum operating system installation only required packages are installed for running an operating system and skipped unnecessary...

Recommended Server Room Temperature

An exploration of the recommended server room temperature and the issues surrounding maintaining the recommended temperature. Figuring out the right temperature to run your server room at can be tricky, you don't want to run the server room too hot and potentially...

Best practices for firewall rules configuration

When you modify a firewall configuration, it is important to consider potential security risks to avoid future issues. Security is a complex topic and can vary from case to case, but this article describes best practices for configuring perimeter firewall rules. Block...

Businesses under-reporting cyber attacks

Businesses are underestimating the importance of cyber security with 28% of cyber attacks being reported to the police, according to research by the Institute of Directors (IoD). A survey of 1000 businesses found that 49% have experienced damage and interruptions to...

Cable Test from CLI

Cable test is available through the CLI: swctrl -d cable show And you should expect something similar like: BusyBox v1.19.4 (2017-03-10 11:34:48 PST) built-in shell (ash) Enter 'help' for a list of built-in commands. US.v3.7.47# swctrl -d cable show Port...

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