CentOS 8 install tcp_wrappers to protect from tcp malicious connection

 1.

 

 

 

 

 

 

 

 2. Configurate /etc/hosts.deny and /etc/hosts.allow

ALL:

in.fingerd:

sshd:

in.tftpd:

portmap:

 

References

https://pkgs.org/download/libwrap.so.0()(64bit)