Hi ,All ! Just wanted to use this option in sshd_config ,but I get error about line 6: Bad configuration option: AllowHosts /etc/ssh/sshd_config: terminating, 1 bad configuration options Seems like ssh not permit me to use this option. Does someone have solved this problem . Thanks ,Gabi . P.S I'm writing this letter not on my own box so that is the reason for this message writen on English ,and not Russian .