The theft of credentials has been occurring since almost the beginning of time. But of course when the web ‘happened’ and specially when e-commerce exploded stealing passwords also went on the rise. Emptying bank accounts, ordering stuff on behalf (and expenses) of others, spying, even impersonation was and is achieved by stealing credentials. Luckily for us identity got … [Read more...]
ARP spoofing attacks
ARP spoofing attacks are quite harming and they can easily constitute a man-in-the-middle (MITM) attack. They consist on the attacker sending ARP packets into the network the victim is located, typically redirecting traffic to the attacker’s machine. Once this is achieved the attacker can sniff all the traffic sent by the victim’s device and obtain sensitive information. … [Read more...]
A few useful network commands
Troubleshooting network issues with simple commands is not a very difficult topic once there is a little toolbox to pull from. Needless to say networking topics can be very complicated and any specialist on the field will tell you how cumbersome it can really get. However with a few set of commands one can get some important information that will help when dealing with network … [Read more...]
How to configure the PF firewall on FreeBSD
There are three firewall options on FreeBSD. The in-house built IPFW, the ‘old’ IPF (known as IP Filter) and PF ported from OpenBSD. PF is a very popular piece of software which was originally sparked from an issue on the IPF license that prevented making changes publicly available, which the OpenBSD did all the time. When they realised of this issue, they pulled the code and … [Read more...]
How to configure the IPFW firewall on FreeBSD
Among the three possible firewalls on FreeBSD (choice is always nice) IPFW is the in-house built one. There is a default, easy way, configuration path but if one needs to build a box to act as a dedicated network appliance with packet filtering capacity fine tunning the IPFW firewall configuration is more than desirable. Before start reading, for those unfamiliar with … [Read more...]