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problems after successful telnet

there are few things i cannot do after successful connectivity between two computers through telnet.
1- i cannot enter by using root login and password.
2- there are few commands like "init" and "shutdown" i cannot use.
tell me can i do these things and what are the reasons i cannot do these things.
Linux Networking

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8/22/2022 - Mon

its a nice effort to make easy for people to gain knowledge

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Depending on which Linux OS you use, you may still appear to be unable to run 'init' and 'shutdown' even after you 'su'.  The reason for this (if it happens) is that those commands will not be in your $PATH variable.

Instead of 'su', use 'su -' if you run into that problem.

Furthermore, it is highly recommended to bury telnet and use SSH instead; telnet sends username/password info over the wire in plain text.  SSH encrypts these.

hi sumsam,
       gbaughma is right,just follow his step,i have tried that , it the same that u need to logg in as a user first, then su - root with root passwd
       by then u be in the Superuser mode , u can do anything from that
       Furtherthat,first u need to be in the server to set the Linuxconf to enable remote access if u want to shutdown from any window client or unix client.Being called as a Server,after setting for remote access is configured , u dun have to install monitor or keyboard , all u have to do is enable the webmin port 98 in the redhat verison (for other flavours . u needto checkout).
      Enjoy ! ..if u still face problem .referto manual from th LIBRARY...its free .      
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