VULNERABILITY ASSESSMENTS

THE CHALLENGES OF VULNERABILITY ASSESSMENTS Network vulnerability assessments are widely recognized as a crucial component of network security and a key component of any overall Network Security Assessment Service. Vulnerability Assessments are performed to determine the actual security posture of a network environment. They are designed to explore whether or not a malicious attacker can … Read more

WINDOWS VS. LINUX DESIGN

It is possible that email and browser-based viruses, Trojans and worms are the source of the myth that Windows is attacked more often than Linux. Clearly there are more desktop installations of Windows than Linux. It is certainly possible, if not probable, that Windows desktop software is attacked more often because Windows dominates the desktop. … Read more

LAYERS OF LINUX/UNIX

LINUX/UNIX has three most important parts. They are Kernel, Shell and File System Figure: Layers of Linux Kernel Kernel is the heart of the operating system. It is the low level core of the System that is the interface between applications and H/W. Functions Manage Memory, I/O devices, allocates the time between user and process,inter … Read more

BENEFITS OF LINUX

Linux can give you: 1. A modern, very stable, multi-user, multitasking environment on your inexpensive PC hardware, at no (or almost no) monetary cost for the software. Linux is a rich and powerful platform don’t think of it as a “poor people” operating system. Out-of-box Linux has as much capability as MS Windows NT with … Read more

IPTABLES : Introduction to Linux Firewall

IPTABLES : Introduction to Linux Firewall   Linux is the most-used open source operating system. Managing network traffic is one of the toughest jobs to deal with.  For this, we must configure the firewall in such a way that it meets the system and users requirements without leaving the system vulnerable. The default firewall in most of the Linux distributions is IPTables. IPTables is … Read more

Setup SFTP Server on linux

Setup SFTP Server on linux CentOS 7 or any Linux server distribution is a very powerful server that performs above and beyond what your business might need. Whatever task you throw at the server, it will be ready. And, if it isn’t ready out of the box, you can make it so. A complete and simple … Read more

Find Files and Directories Based on Size in Linux

find command linux

Find Files and Directories Based on Size in Linux In Unix-like and some other operating systems, find is a command-line utility that searches one or more directory trees of a file system, locates files based on some user-specified criteria and applies a user-specified action on each matched file. To find all 50MB files, use. # find / … Read more

Find Files and Directories Based on Modification Time in Linux

find command linux

Find Files and Directories Based on Modification Time in Linux In Unix-like and some other operating systems, find is a command-line utility that searches one or more directory trees of a file system, locates files based on some user-specified criteria and applies a user-specified action on each matched file. Find Last 50 Days Modified Files … Read more

Search Files Based On Owners and Groups in Linux

find command linux

Search Files Based On Owners and Groups in Linux In Unix-like and some other operating systems, find is a command-line utility that searches one or more directory trees of a file system, locates files based on some user-specified criteria and applies a user-specified action on each matched file. To find all or single file called testdata.txt under / root … Read more