Wednesday, 27 December 2017

Adding an IP alias to OVH dedicated server

So, as you may have guessed, recently I've moved hosting from a dedicated server at Lunarpages, to a dedicated server at OVH. Lunarpages kept the system I was on going reliably for years (indeed, I'm slowly still migrating services from it), but just couldn't match what I got included by OVH.

Anyway, to keep some things separate, I like to use separate public IPs for them. In the past, you'd just add a stanza to /etc/network/interfaces, and your work was done... but I opted for Ubuntu Server 17.10, and well - it does things differently!

Thursday, 21 December 2017

Adding a public SSH key to OVH control panel

A quick post this one.

You bring up your SSH key, you go to paste it into the OVH interface, and then it refuses to show you the button to submit, what gives?

Thursday, 24 November 2016

Trying to identify a cheap security DVR's real manufacturer

So, someone I know has a cheap security DVR from Aldi. Distributed by "WinPlus Australia", it's been designated the brand and model "Cocoon Digital Video Security System IT115008".

With the latest hype around the Mirai botnet commandering things exactly like such a security DVR, I decided to get in touch with the local distributor and ask them if any issues had been reported, advisories released, or updates made available.

Saturday, 15 October 2016

Possible overlay skimmer security feature?

There's been a lot of talk on various websites about overlay skimmers on POS devices. Talk about technological solutions etc..

You know, I reckon there's a low tech solution.

If the POS device manufacturers supply their own overlays, that are designed to physically probe points that must be altered to capture data such as PIN pad presses, line of sight with PIN pad presses, and/or access to a card's magstripe.

At randomised intervals within a maximum timeframe, a shopkeeper could fit this overlay over each PIN pad in the store in turn, and if the overlay didn't fit, then the PIN pad or whatever other component of the POS device would be known to be outside of physical spec.

Couple this with screening for Bluetooth and other common wireless comms methods using a cheap Android or other cheap wireless enabled device, and it should be possible to pick up when stuff's happening.

Wednesday, 26 August 2015

It's time to clear the space junk...

Over the years, I've collected a lot of computer paraphernalia - from actual computers to various parts of computers, associated cabling etc.

It's now gotten to the point where it's clear I'm not going to use a lot of it ever again, and so before I send it off for ewaste processing, I wanted to offer folks the chance to grab some of it.

Tuesday, 9 June 2015

Protecting against ransomware - is this possibly a different way of thinking about it in the SOHO space?

Recently my folks got an email from their ISP (Westnet) scaring them, thinking they'd been hacked (it turns out an old Westnet user database had been compromised, along with cleartext usernames and passwords... oopsies?).

Before I figured out what it was, I was thinking suspicious activity had been detected on their accounts and was worried about whether or not they'd backed up recently... then my thoughts turned to cryptoware and how it basically spreads out to whatever it touches and encrypts everything (had someone else hit by a bug recently - and I'm moving them and their formerly Windows XP computer to Lubuntu as they only need Windowsish looking email, web browsing and printing).

Anyway.. long setup aside, I was thinking, that perhaps the best way to deal with backups and cryptoware, was to have the system that needed to be backed up make itself available to an authorised backup storage provider by some restricted and secured means (over a LAN or encrypted link). That backup storage provider could be prodded by the client system to perform a pull, but the client would never have direct, unrestricted access to the backup server's archives.

Sunday, 7 September 2014

How to turn off showing the margins (aka whitespace) in Excel 2010 Page Layout mode

It was driving me nuts at work, this particular spreadsheet we have. On two tabs it was showing the margins, and on two other tabs, it wasn't. I didn't need to see the margins, and for the life of me I couldn't figure out how to make things consistent.. Then I figured it out when I hovered my mouse over the area!