How (in which file) is the telnet user and password set up?

[sinclairfr]

I was wondering if the telnet password was set by default or had to be set in a specific password file somewhere.

I appreciate any help.

Thanks

[guino]

This is part of step 9 when preparing the SD card files: for telnet access either set the password hash in passwd file (get a hash here using the calculate 'DES' button and copy the value) OR add -l /bin/sh to the telnetd line in custom.sh