Fedora Linus Pls

Firewall: Another important security issue to consider for a Linux system is Packet filtering: there must be a packet filtering router or firewall between the Linux system and the outside world (iptables). See if iptables or another firewall is installed or is available. Insert the one specific rule. Display updated iptables again. Delete the rule added. Display updated iptables again. - Add your lab report these screenshots. Services: Unnecessary services are security breaches. Examine the contents of /etc/xinetd.conf. Report your results. xinetd.conf file there cannot be in your local. Too see it, first control whether to be or not to be with this command: rpm -q xinetd If there is no install with sudo yum install xinetd Then, open the xinetd.conf with sudo vi /etc/xinetd.conf Updates: Software patches: update software security patches regularly and as soon as possible. Use sudo dnf upgrade --security see the updates that you miss. Report your findings. Shadow file: The two files /etc/passwd and /etc/shadow are the system's first line of defense against intruders It is very important to regularly check every login has a password. Check it and interpret. Use sudo vi /etc/shadow. Passwd file: A common way for hackers to install a back door once they have obtained a root shell is to edit new root logins into /etc/passwd. Check it and interpret. Use "sudo vi /etc/passwd