Protocols

Port scanning: introduction and basics

How port scanning contributes to your system’s security

It’s easy to lose track of all the different programs that are responsible for inbound and outbound data traffic. Networks hosting a large number of computer systems that are constantly communicating with online services often require technical backup. High-performance tools check the activities of various applications or computers and can close existing security gaps. Using port scanners is one...

Log file analysis with open source tool, GoAccess

How log file analysis works with GoAccess

The log files of web servers and cloud services reveal a lot about the users that access them. They contain information about which browser or operating system is being used, which search terms have been entered and how many different pages a user has accessed, for example. Since manually analyzing these extensive text files is nigh on impossible, you can use log file analysis programs such as...

IPsec: security architecture for IPv4 and IPv6

Secure network connections with IPsec

A big problem with the previous Internet Protocol version, IPv4, was the missing guarantee of security standards of integrity, authenticity, and confidentiality. This previous protocol lacked the necessary means to identify data sources or enable secure transport. The protocol suite IPsec, developed for IPv4’s successor, IPv6, has changed the situation for Internet Protocol overnight.

Log files: recording computer processes

What type of information is stored in a log file?

Log files contain a range of information on system processes, programs, and services. Whether it’s an operating system, database, or antivirus software: all of this information on relevant processes is stored in each respective log file. This enables extensive data recovery and allows users to find a quick solution when faced with troubleshooting tasks; it also helps with software adjustments....


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