Ubuntu下安装rsh实现无密码访问详解

apt-get install rsh-client rsh-server xinetd 

# default: on # descrīption: The rshd server is the server for the rcmd(3) routine and, / #    consequently, for the rsh(1) program. The server provides / #    remote execution facilities with authentication based on / #    privileged port numbers from trusted hosts. service shell {     disable = no     socket_type       = stream     wait          = no     user          = root     log_on_success     += USERID     log_on_failure     += USERID     server         = /usr/sbin/in.rshd }  /etc/xinetd.d/rlogin  # default: on # descrīption: rlogind is the server for the rlogin(1) program. The server / #    provides a remote login facility with authentication based on / #    privileged port numbers from trusted hosts. service login {     disable = no     socket_type       = stream     wait          = no     user          = root     log_on_success     += USERID     log_on_failure     += USERID     server         = /usr/sbin/in.rlogind }  /etc/xinetd.d/rexec  # default: off # descrīption: Rexecd is the server for the rexec(3) routine. The server / #    provides remote execution facilities with authentication based / #    on user names and passwords. service exec {     disable = no     socket_type       = stream     wait          = no     user          = root     log_on_success     += USERID     log_on_failure     += USERID     server         = /usr/sbin/in.rexecd } 

root@block2:~# /etc/init.d/xinetd restart xinetd stop/waiting xinetd start/running, process 26181 

root@block1:~# cat .rhosts  compute root block1 root block2 root 

root@block1:~# cat /etc/hosts.equiv  # /etc/hosts.equiv: list of hosts and users that are granted "trusted" r #      command access to your system . compute 

root@compute:~# rsh block2 date Thu Mar 30 16:38:42 CST 2017