stories of war between boy and machine
Back in Part 1, I demonstrated an example of uploading data to a webserver with cURL. The thing that bugged me was, however, that this used external libraries which can be annoying to deploy with. One option is to statically link the cURL libraries, which will make it huge, but I decided to go native in Windows […]
Following on from the last post on the topic of capturing packet data from a network, this guide demonstrates how you can use a cURL library to upload data from an application written in C (or C++) to a webserver. Although at times I refer to previous examples, you can use this in any number of applications. This will touch […]
So it has been a while since I last posted, because I now have a new job as of January! My new role is IT Infrastructure Engineer, although software development is still something I pursue when I can. In my new job, I am now responsible for a college’s IT infrastructure, including backups, deployment and […]
Further to my previous post, this post details how to interpret network discovery packets – LLDP and CDP – that have been captured on a network interface. To do this, I’ll explain how to create a Type, Length and Value reader that reads an array of characters, determines the type of packet and its subsequent data fields […]
The last 6 months have become very busy, so I decided to take a break from the breaking (and fixing) of our servers and get back to the program I’ve been working on to map network information (for which I still have no real name for). Progress had been going quite well; by around December last year, […]
A colleague and I both work on a number of our systems using two different approaches; I will often go for a more technically creative approach, whereas he will often find something that exists which gets the job done. The great thing about his approach is that he has some very cool tools that do some […]
Keeping a track of computers that are all connected to a network can be a hassle, without desktop management software. Even with it, you can’t necessarily tell exactly which physical computer is connected to a given switch port. Eventually, you will come back to a switch closet, but this doesn’t necessarily help the situation at […]
Last week was spent trying to get our ESX cluster back up and working, so now its back onto FOG. Towards the end of the week, I did manage to spend some time on this again. I changed our switch configurations for the three rooms we manage the network of ourselves to point from pxelinux.0 […]
BIG problem – our ESX cluster has fallen over. Kind of. Not entirely – but enough to be a complete pain. The symptom – our student webserver called ‘studentnet’ (which also hosts lots of student storage) stopped working. Actually, for a while I suspected something may happen, because we were observing very high memory usage […]
Recovering a deleted fog user – or – resetting a user’s password Today is off to a frustrating start. I couldn’t log into the web UI anymore – it kept telling me I had an invalid password. I rembered a while ago that I had a problem with my username – it turns out that […]