Stop Intruders in Their Tracks: Get an Email Every Time Someone Logs In via SSH
Ever wondered who’s logging into your Linux box? Whether it’s a critical production server or a personal VPS, it’s smart to get notified……
$ grep -rn "#Security" ./posts
Using Sudoers to Provide Passwordless Sudo Access
The sudoers file is a configuration file that dictates how and when users can execute commands with elevated privileges (sudo) on a Linux……
sslscan: Audit the SSL\TLS configuration of your web server
sslscan is a command line tool that gathers information about the SSL/TLS configuration of your web services which allows you to identify……
SUID permission, what is it and why can be dangerous?
SUID stands for “Set User ID” its a special permission in Unix and Linux operating systems which allows a command to be executed with the……
x509 certificate signed by unknown authority error, how to resolve it.
Recently i had a problem with a Docker installation, where i could not “pull” any image from a Docker registry, the error message when i……
Linux: disable ssh password login for specific users only
Recently i had the following scenario: we needed a local user which can…
Hacking sshpass (for a legitimate reason)
sshpass is a well known tool that everybody loves and hates at the same time, is very handy when you need to create scripts that use ssh……