20130425

ssh_exchange_identification: Connection closed by remote host

$ ssh bingo@10.3.57.3 -vvv
OpenSSH_5.3p1 Debian-xduh, OpenSSL 0.9.8k 25 Mar 2010
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to 10.3.57.3 [10.3.57.3] port 22.
debug1: Connection established.
debug1: identity file /home/from/.ssh/identity type -1
debug1: identity file /home/from/.ssh/id_rsa type -1
debug1: identity file /home/from/.ssh/id_dsa type -1
ssh_exchange_identification: Connection closed by remote host



In the SSH Server.
# /etc/init.d/fail2ban stop
# /etc/init.d/portsentry stop


To allow connections to the SSH daemon from all hosts allways
# echo "sshd: ALL" >> /etc/hosts.allow




ssh_exchange_identification hosts.allow Debian