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.

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...

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...

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...

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

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...

EdgeMAX – Set up L2TP over IPsec VPN server

Interface and NAT Configuration To configure the allowed networks and NAT traversal on an interface, use the following commands: set vpn ipsec ipsec-interfaces interface eth0 set vpn ipsec nat-networks allowed-network 10.0.0.0/8 set vpn ipsec nat-networks...

Block Websites Using DPI

Here is an example of configuring a custom application category and firewall rule to block traffic for Facebook. You could also use the default application categories or create other custom categories. configure #If DPI is not already enabled set system...

Setting a Secure Password

When choosing your password we recommend using 3 word password phrases to set your passwords, rather than complex gibberish types. There are several freely available password cracking tools out there and there are 3 common techniques to crack a password: Brute force =...

EdgeMAX – Web proxy service for filtering

How the web proxy service can be configured via EdgeRouter's CLI? A web proxy is useful for blocking, allowing or redirecting web traffic. There are a number of options associated with the web proxy service: hg@optusnet# set service webproxy ? administrator...

The 5 Key Aspects of a Top Trading Computer

Our expertise in multi-screen computer systems means that we serve customers in a few different markets however our largest sector has to be the trading / financial area. We have supplied specialist trading computers for over 4 years now and have spoken with hundreds...

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