Software >> OS >> Unix >> Networking >> What is tcp wrapper what are the config files and how to determine if a service is using it

Protects network services by applying ACLs that control which machines can access that service


example for sshd

ldd /usr/sbin/sshd | grep libwrap

if libwrap is used => using tcp wrapper


ACL files in /etc/hosts.allow & /etc/hosts.deny