/home/bill/System_maintenance/1_pi security.txt ********************* 21Dec2017 change forgotten user pwd https://raspberrypi.stackexchange.com/questions/4409/how-do-i-change-recover-my-password Right off the bat, let me say that there is not a way to recover a password (without some actual cracking/hacking which I don't know how to do). Resetting your password is your best bet. So the first step will be to determine if you have any way to log in to the Raspbery Pi. If you're able to log in with a user that has 'sudo' rights (this includes SSH... perhaps you have keys set up properly but forgot the actual user password, which I ran in to), simply typing: sudo passwd should prompt you to create a new password (without having to enter your current password). Another option would be to run the starting config and change the password that way. sudo raspi-config If you're completely locked out, you can try the technique mentioned here, though I didn't have any success with the strategy. It just kept me from finishing booting up the RPi. I haven't found any good techniques to enable root access period (putting the conversation of why you'd even want to do that aside :) ), let alone if you can't log in. Somebody can correct me if I'm wrong. Hopefully this will save you from blowing away an image with a fresh one. If this saves one person, figure it's worth the time to post :) shareimprove this answer edited Sep 24 '14 at 22:00 Parker 1032 answered Jan 9 '13 at 15:02 loeschg >> I used user bill : $ sudo passwd pi ********************* 17Dec2017 Add bill to admin Done during user setup? ********************* 17Dec2017 How do I [enable,disable] wifi? Search "Raspberry Pi and How do I disable auto wifi?" ifconfig - shows [eth0, lo, wlan0] https://www.raspberrypi.org/forums/viewtopic.php?f=66&t=132215 Re: How to disconnect WiFi network? Tue Jan 12, 2016 2:13 pm Open a terminal and enter something like sudo ifdown wlan0 Must be better than un-pluging the dongle! Dave. https://raspberrypi.stackexchange.com/questions/4120/how-to-automatically-reconnect-wifi edited Jan 30 at 9:18 answered Jan 27 at 17:25, Leonardo >>segment of answer : +-----+ echo "Network down, fixing..." # ifdown --force wlan0 # sleep 5 /bin/kill -9 `pidof wpa_supplicant` /sbin/ifup --force wlan0 /sbin/ip route add default via $router dev wlan0 /bin/mount -a echo "wlan0 reconnected at `date`" +-----+ see $ man ifup works : $ sudo ifup wlan0 ********************* 17Dec2017 Pi security Menu -> Preferences -> Raspberry Pi configuration -> Interfaces : Was OFF already : VNC I turned OFF [Camera, SSH, Serial, 1-Wire, Remote GPIO] Remain on : [SPI, I2C] what are these? # enddoc