October 8, 2008

A quick fix when under DDOS attack

A friend of mine asked me what he should do when experiencing a DDOS attack. Well the excerpt itself would be long as on how to handle a DDOS attack, as each type of Denial of Service needs different handles… as experienced is a sys-admin, as throughout he/she would be able to handle the attack. However, for all here is a simple straight forward methodology.. 1) Find the IPs from which the SYN flood is coming from ... Read more

October 8, 2008

Denial of Service - Sockstress

Sock Stress is a new type of Denial of Service which was developed by Jack C. Louis. According to nmap creator Fyodor, the attacker sends a TCP SYN packet to a targeted port, but first by making sure that a firewall protects his own machine as to prevent it to interfere with the attack process. The main reason for the protection is as to avoid the attacker’s computer to reset the unexpected returned SYN/ACK packet (2nd step of the TCP 3 way handshake). ... Read more