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