Wiki-World security https://wiki.padix.dk/ 2026-05-31T09:30:22+00:00 Wiki-World https://wiki.padix.dk/ https://wiki.padix.dk/lib/tpl/dokuwiki/images/favicon.ico text/html 2022-06-10T19:19:08+00:00 Anonymous (anonymous@undisclosed.example.com) security:firewalld https://wiki.padix.dk/doku.php?id=security:firewalld&rev=1654881548&do=diff Is the firewall running firewall-cmd --state Show default zone firewall-cmd --get-default-zone list current settings firewall-cmd --list-all open port in firewall firewall-cmd --zone=public --add-port=5000/tcp open application in firewall(http) text/html 2022-06-10T19:19:08+00:00 Anonymous (anonymous@undisclosed.example.com) security:nmap https://wiki.padix.dk/doku.php?id=security:nmap&rev=1654881548&do=diff Nmap Scan ports on IP nmap -sT <IP> Scan ports on subnet nmap -sT <Net/cidr> Scan for vulnerabilities nmap --script vuln <IP> Scan for specific port nmap -sT -p <PORT> <IP> Remarks If you want to check your public IP, you need to run nmap from a location outside of your text/html 2022-06-10T19:19:08+00:00 Anonymous (anonymous@undisclosed.example.com) security:selinux https://wiki.padix.dk/doku.php?id=security:selinux&rev=1654881548&do=diff Set label on folder semanage fcontext -a -t samba_share_t <complete-path-to-folder> Set label also on subfolder and files semanage fcontext -a -t samba_share_t "<complete-path-to-folder>(/.*)?" Quotes are required! Restore label Also used to apply labels to sub directories. text/html 2022-06-10T19:19:09+00:00 Anonymous (anonymous@undisclosed.example.com) security:ufw https://wiki.padix.dk/doku.php?id=security:ufw&rev=1654881549&do=diff UFW ufw is the default firewall in Ubuntu based system and is also available on the Raspberry-Pi. Install UFW apt install ufw Examples Allow SSH ufw allow ssh List Rules ufw status if no rules are defined only the run status is shown. text/html 2022-06-10T19:19:08+00:00 Anonymous (anonymous@undisclosed.example.com) security:user https://wiki.padix.dk/doku.php?id=security:user&rev=1654881548&do=diff User Security commands run as root unless otherwise stated. Set password passwd <username> Lock user passwd -l <username> Unlock user passwd -u <username> Expire user chage -E0 <username> Remove expire date chage -E -1 <username>