security - SomoIT.net

Sep 1, 2023 security linux email

Security - Remove sensitive data from headers in Postfix

Email headers can provide sensitive and valuable information. For security purposes it is highly recommended to avoid sending private IP addresses, versions, etc... Example email

Jan 31, 2021 security linux

Security - Sudo vulnerability allows privilege scalation

A 10 year old sudo related flaw has been discovered that can make unprivileged users obtain root permissions. Linux admins should patch this critical vulnerability

Nov 23, 2020 security linux

Security - Error installing Kali: "Installation step failed"

When I was installing a Kali virtual machine, I came across an error in the “Software selection” step After confirming the software, the installation shows

May 20, 2019 security linux

Security - List available cipher suite using nmap

If you are in process of securing your web server or site, there are some tools and online resources that can help us a lot

May 13, 2019 security networking

Security - View HTTP headers using tcpdump

If you need to trace the HTTP request and response headers by capturing the related packets, you can use tcpdump in this way: tcpdump -i