Hi, ssh in potato is set to always try to use reverse DNS lookup. If the client is not registered in the DNS server, then it gets an answer: "ssh_exchange_identification: Connection closed by remote host"
I've looked in "man sshd" and "man ssh" and I didn't see any configuration option which bypass the reverse lookup, enabling connections from machines without reverse DNS lookup. How can I do this? (I don't want to add each machine to /etc/hosts) Which are the security problems when I bypassing this lookup? Thanks in advance, Pedro