20) 212.4 Security tasks

"It's a computer networking service for reading from and writing to network connections using TCP or UDP"

• ss

• netcat

• netstat

• telnet

• fuser

"It's a feature-rich networking debugging and investigation tool"

• ss

• netcat

• netstat

• telnet

• fuser

Which are three features of Netcat?

• Provides routing table information

• Can be used as a proxy or portforwarder

• Full DNS forward/reverse checking

• Outbound/inbound connections to any ports

• Faster execution than netstat

Type the full command to check port 80 on the remote server with the IP address 192.168.18.53 .Please use the Netcat tool:

Type the full command to check ports 20 to 80 on the remote server with the IP address 192.168.18.53 .Please use the Netcat tool:

Which files are typically read by Fail2ban?

• /var/fail2ban/auth.log

• /var/log/pwdfail

• /var/log/auth.log

• /var/log/apache/error_log

• /var/log/error.log

"It is a software tool designed to enhance the security of servers by automatically blocking malicious or unauthorized access attempts.

It's typically configured to unban a blocked host after a certain period."

• Ban2fail

• Fail2ban

• DenyHosts

• SSHGuard

• Snort

"It's a network exploration tool and a security scanner. It can be used to scan a network, determine which hosts are up and what services they're offering"

• ss

• nmap

• netstat

• telnet

• fuser

"It's an open source framework of several services and tools offering a comprehensive and powerful vulnerability scanning and vulnerability management solution"

• ss

• Snort

• netstat

• telnet

• OpenVAS

What does OpenVAS stand for?