Free CompTIA Linux+ XK0-005 Practice Question

A Linux administrator needs to verify if a newly installed web server is listening on the default port and is reachable from a remote system. Which command should the administrator use?

  • dig remote_server_ip -p 80

  • openssl s_client -connect remote_server_ip:80

  • netstat -tuln | grep ':80'

  • nmap -p 80 remote_server_ip

This question's topic:
CompTIA Linux+ XK0-005 / 
Troubleshooting
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