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root@gate:~# apt-get install telnetd root@gate:~# cat /etc/inetd.conf
[gate:~] # cat /etc/inetd.conf
... telnet stream tcp nowait root /usr/libexec/telnetd telnetd ...
root@gate:~# apt-get install rsh-server root@gate:~# cd /lib/security root@gate:/lib/security# ln -s pam_rhosts.so pam_rhosts_auth.so root@gate:/lib/security# ln -s pam_unix.so pam_unix_session.so root@gate:/lib/security# ln -s pam_unix.so pam_unix_acct.so student@client1:~# sudo apt-get install rsh-client
[gate:~] # cat /etc/inetd.conf
... shell stream tcp nowait root /usr/libexec/rshd rshd ...
gate# cat ~user1/.rhosts
client1 root client1
client1$ rsh gate "uname -a" client1$ cat /etc/hosts | rsh gate "cat > hosts.bak" client1$ rcp /etc/hosts gate:hosts.bak client1$ rcp gate:hosts.bak /etc/hosts client1# rsh -l user1 gate "uname -a" client1# rcp /etc/shadow user1@gate: client1# rcp /etc/master.passwd user1@gate: client1# cd / client1# tar -cvf - etc/ | rsh -l user1 gate "cat > etc.tar"