Hi guys,
Currently when I log in via telnet as root it doesn't require a password. How can I setup my Linux to ask for a password?
Thanks,
Hadar

Welcome to LQ

Use ssh instead, and don't connect as root, connect as user, and then su to root.
I would strongly recommend to disable telnet.

Kind regards

Hi mate,

Telnet is unencrypted....... Not many people use it anymore :P This means that anyone sniffing traffic can see your full username and password. I used to see it and its almost trivial............. it takes one command "dsniff" to access all your data. I would recommend (as im sure many others will) to switching to secure shell or SSH.

Just for other members....

What type of info are you wanting to access that requires you to log in as root ?

What distro are you telneting from and what system are you telneting too ?

Thank you. However, this is a requirement I have to do in my school. I need to be able to Telnet as root using a password. Currently it doesn't ask for one..
Can you please help me?

I check "/etc/passwd" and saw:
root:x:0:0:root:/root:/bin/sh

I guess, this is my problem (am I right?).
However, when I type passwd I get the following error message:
passwd: /etc/passwd: Read-only file system

How can I change the premissions of /etc/passwd in order to update it?

Thanks,
Hadar

Really ??? my university would never ask me to do this.... :S

You do realize that anyone could access anything they wanted on your system.

Ill stay out of this so i dont feel guilty if you get cracked.........

Have you tried .... google ?

This is just an exercise I got. I don't have plans do use it byond the scope of this exercise.
I tryed Google for hours. I guess i'm too newbie that even Google can't help me.
Hadar

How about the first search term in google ?

http://www.idevelopment.info/data/Un...TPAsRoot.shtml

I read it already. But it didn't answer my question. I have a problem only with setting the password and not with setting the telnet itself.
After more googling I understood that the password issue is not related to telnet but to passwd. This was the answer I looked for from this forum .
Now I have to understnad how to get passwd to work when \etc\passwd is a read-only file system.
Anyway, thank you for your time.
Hadar

You must be a root to set password for root. So login as root or use "su" or "sudo" commands. Or if you really have read only filesystem, then remount it as read/write.

Nice Work !!

I like too see when people figure it out after smashing google for hours (like me when i started using slackware :P )

Good luck in the future !
(and stay away from telnet after your assignment :P )

Thanks
It seems I manage to pinpoint my last chalange. This is the issue:
the \etc is readonly because the OS run on an embedded machine and the \etc is mapped to a ROM section.
It means that I need to update the password on the compilation machine and not at run time.
The internet explain how to use the passwd app to update the \etc\passwd file on the machine I'm currently running. But how can I update the password field on a different machine (the compilation one)?
I can open the /etc/passwd file on the compilation machine with a vi editor, but I don't know how to write the password myself..
Can you please tell me what should I do?

Which OS it is?

The OS is Linux 2.6.36.4.

I got it -
I found the answer here - http://www.digi.com/support/kbase/kb...tl.jsp?id=3174
1. Execte: openssl passwd -crypt NEW_PASSWORD
2. Copy the output to the second column of root in the /etc/passwd file
3. Recompile the embedded OS

Thanks for your help guys!

1 members found this post helpful.

The OS is Linux 2.6.36.4.

I got it -
I found the answer here - http://www.digi.com/support/kbase/kb...tl.jsp?id=3174
1. Execte: openssl passwd -crypt NEW_PASSWORD
2. Copy the output to the second column of root in the /etc/passwd file
3. Recompile the embedded OS

Thanks for your help guys!

1 members found this post helpful.