Published on : October 6, 2010 by Jithin Vijayan
IP Subnetting Increasing growth of Internet created a high demand for IPs and made the job of IP allocation a tougher one. To avoid this situation of requesting additional IP addresses was avoided by the introduction of IP subnetting. The IP subnetting was introduced so that the local network will be more adaptable to changes […]
Published on : by Jithin Vijayan
IP addressing Each host on internet is assigned with an IP address which is also called as Internet address. Though the hosts are assigned with the number system it won’t be an easy structure for us(humans) to understand or differentiate each system with a number format. Hostname/domainnames are associated to avoid this, and the mapping […]
Published on : by Jithin Vijayan
You must be hearing the word IP address from day since you’ve been to internet. Have you ever thought what these numbers signify or what is their role in the internet. Are they really the wheels that drive the DNS. Before going anything in detail I will explain the basics and the seven OSI layers […]
Published on : September 17, 2010 by George K.
A continuation of the previous exploits. http://isec.pl/vulnerabilities/isec-0025-syscall-emulation.txt Full Disclosure here – http://seclists.org/fulldisclosure/2010/Sep/268 & mitigation at http://seclists.org/fulldisclosure/2010/Sep/273 Details about the 0 day exploit and how to test whether your system is exploitable or not. However no need to get panicked as this particular exploit was with l33t hackers for last 2 years as you can see […]
Published on : September 2, 2010 by Vijesh Vijayan
How many times in Linux shell scripting have you written scripts and a had bad time with those having spaces? The remedy to this situation is your IFS value. IFS or Internal Field Separator holds the value which separates the various entities. This can be file names, values read a script by read etc. It […]
