alterou os arquivos para isso e agora parece estar funcionando.
saberá em poucas horas se isso resolveu ou não
#
# hosts.deny This file describes the names of the hosts which are
# *not* allowed to use the local INET services, as decided
# by the '/usr/sbin/tcpd' server.
#
# The portmap line is redundant, but it is left to remind you that
# the new secure portmap uses hosts.deny and hosts.allow. In particular
# you should know that NFS uses portmap!
ALL: ALL
Parece que o cólon precisa de um espaço depois disso.
#
# hosts.allow This file describes the names of the hosts which are
# allowed to use the local INET services, as decided
# by the '/usr/sbin/tcpd' server.
ALL: xx.xxx.xx.xx , xx.xxx.xxx.xx , xx.xx.xxx.xxx , xx.x.xxx.xxx , xx.xxx.xxx.xxx