Posts Tagged: networking


8
Dec 11

Guide to Persistent Reverse SSH Shells and Port Forwards

Idiot proof setup for persistent reverse shells / port forwards (same thing) under a Ubuntu VM remote and my Dreamhost server, but should apply to nearly* all *nix’s

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17
Oct 11

Today’s Accomplishments: The 2.0 Generation

As I was walking back from our kitchen in the office, I realised that that ‘lift coffee cup, walk to kitchen, make coffee cup, return to desk’ was the most inefficient part of my working day; I can even justify writing this post as vaguely productive as I’m waiting for a download to complete…
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14
Oct 10

Hackathon

hackathon

On Saturday the 23rd October, the Hackers invade The Space!
In association with QUESTS, Dragonslayers, and IETNI, HackerspaceBelfast will be running a series of events over 24 hours of software, network, and hardware hackery goodness, as well as screening hacker movies, DIY repair, and maybe, just maybe, how to build a laser. Running parallel to Dragonslayers’ 24 hour gaming event, which will incorporate console, PC, and tabletop games, attendees will be able to both play and make games to their hearts content.

If you’re interested in programming, like to take things apart and see what happens if you mess with hardware, or want to know more about some of the the pitfalls of network and computer security (as well as how to prevent them), come along and mess with a group of like minded people.
Admission is £5 to pay for security and utilities. Space is limited so come early, stay late, and you won’t be disappointed. The ball starts rolling at 12 noon on Saturday.
For more information or to register your interest, check out our Facebook Event, Our Wiki, or the Google Group and get involved!


24
Jul 10

Citrix Web Client with Ubuntu

Citrix Reciever LogoUbuntu is one of those polarising technologies; Its really easy to use on a recreational basis, or as part of a institution/business wide rollout, but heartbreakingly awkward to use ‘alone’ within an entrenched business setting.

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1
Apr 10

Mod_Rewrite in Apache2

Just incase you forget how to fix this the easy way: Enable mod_rewrite for URL voodoo; (Or any module replacing the

rewrite

)

$sudo a2enmod rewrite
$sudo service apache2 restart

Remember to fiddle with

/etc/apache2/sites-available.*< \pre> and change "AllowOverride none" to "all" in any places that you're having trouble with rewritten URL's

14
Mar 10

Installing and Configuring NS-3 on a Ubuntu System

Network Simulated by NS

An Example of network simulation using NS

NS-3 Appears to have a staggeringly steep learning curve so I hope these posts help out someone else (or me, when i forget all this in a month).

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13
Mar 10

Mercurial Quick Start Cheatsheet

I hadn’t used Mercurial before so I thought it might be a good idea to leave a reminder for me and anyone else who comes across it…

For tidyness, I do all of my dev-stuff (Subversion, Mercurial, CVS, Git etc) under ~/src and only take root privileges when its needed; any good makefile should relocate the necessary files for you at the ‘make install’ or equivalent point.

Update:This article was picked up by the guys at DevCheatSheet.com and I’m really honoured to be included in a site that I’ve been dipping into over the years, so if you need any kind of cheat sheet or quick reference, I highly recommend checking them out. Anyway…

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12
Mar 10

GSOC or Having a go at Network Simulator

I had been looking at this years Google Summer Of Code google group and saw the list of  organisations that are getting involved. While i was alooking at it, I knew i didn’t want to even consider the big boys (I’m looking at you, Debian, Drupal, KDE, Apache, X.Org, etc), they’re too big to get my teeth into, and I’m currently in the throws of ‘WHAT THE HELL AM I GOING TO DO MY FINAL YEAR PROJECT ON!!! ‘ (For any Americans, that means ‘dissertation’).

My university is big into networking etc, so I had a look at the NS-3 Network Simulator, which currently sits at slightly less that 2 million lines of code, and is vaguinly within my realm of interest so I’m going to see a) if i can get it to work and play with it for a bit and b) if i can contribute anything to the project and parlay that into a final year project, and I’ll be documenting whatever progress I get on this blog.

I doubt that I’ll apply to GSOC as I don’t think I’d be able to give the required time committment over the summer. :(

Anyway, Next blog post will be a start into the installation and configuration of NS-3 on my virtualised Ubuntu setup.


10
Mar 10

So what can you do with 32 Million Passwords…

So I have a piece of coursework for a CS module I’m taking at Queen’s University Belfast and one of the focal points of it is the recent RockYou! SQL-injection breach that released 32million passwords into the internet, and I thought I’d have a closer look at that list.

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6
Mar 10

Any Port in a Storm

While working on an IDS Solution for a client, I came across Untangle, and I loved it so much that I pulled out an old box and loaded it up as my office firewall.

One thing that is lacking, from my perspective (at least in the ‘free’ edition) is the firewall interface; Untangle uses an IpTables based firewall, but doesn’t replicate the usual INPUT FOWARD OUTPUT rulebase. I think that in 90% of usecases for Untangle, this isnt a problem, but I found it a little bit alien to have portfowarding hidden in the Networking config pane, and firewall separatly.

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