/boot/config.txt: open for write: permission denied

DrFreeman

I could connect with putty

sudo su psswd

And I changed the passwort. But then I tried to connect with WinSCD but it says passwort is wrong for root. I checked it twice

@edmaul69 said in /boot/config.txt: open for write: permission denied:

Login, and edit this file: sudo nano /etc/ssh/sshd_config

I did this but the file seems blank. There are no entries

DrFreeman

This is the text of my ssh_condig I found with Filezilla

This is the ssh client system-wide configuration file. See

ssh_config(5) for more information. This file provides defaults for

users, and the values can be changed in per-user configuration files

or on the command line.

Configuration data is parsed as follows:

1. command line options

2. user-specific file

3. system-wide file

Any configuration value is only changed the first time it is set.

Thus, host-specific definitions should be at the beginning of the

configuration file, and defaults at the end.

Site-wide defaults for some commonly used options. For a comprehensive

list of available options, their meanings and defaults, please see the

ssh_config(5) man page.

Host *

ForwardAgent no

ForwardX11 no

ForwardX11Trusted yes

RhostsRSAAuthentication no

RSAAuthentication yes

PasswordAuthentication yes

HostbasedAuthentication no

GSSAPIAuthentication no

GSSAPIDelegateCredentials no

GSSAPIKeyExchange no

GSSAPITrustDNS no

BatchMode no

CheckHostIP yes

AddressFamily any

ConnectTimeout 0

StrictHostKeyChecking ask

IdentityFile ~/.ssh/identity

IdentityFile ~/.ssh/id_rsa

IdentityFile ~/.ssh/id_dsa

Port 22

Protocol 2,1

Cipher 3des

Ciphers aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc

MACs hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160

EscapeChar ~

Tunnel no

TunnelDevice any:any

PermitLocalCommand no

VisualHostKey no

ProxyCommand ssh -q -W %h:%p gateway.example.com

RekeyLimit 1G 1h

SendEnv LANG LC_*
HashKnownHosts yes
GSSAPIAuthentication yes
GSSAPIDelegateCredentials no

DrFreeman

Ah I found the mistake - it is not sshd_config - it is ssh_config.

But I can not find that line with
PermitRootLogin without-password

It is strange because with the sudo su psswd I could change the root passwort successfully?!

edmaul69

@DrFreeman you need to do sudopasswd root. But you have to fiollow the guide i posted to enable root password first. Then you need to restart the pi for it to work.

edmaul69

@DrFreeman i just tested it. It is /etc/ssh/sshd_config

edmaul69

@DrFreeman look at the file name at the top. and you see under authentication you see i have:

PermitRootLogin yes

alt text

edmaul69

Also if you cant get it working, the /boot folder is accessible on a windows computer so you could manually change the config.txt. But it would be better if you could get root access.

DrFreeman

@edmaul69 said in /boot/config.txt: open for write: permission denied:

Login, and edit this file: sudo nano /etc/ssh/sshd_config

Thank you very much but when I do that the file is blank - it seems it does not exist. Please could you tell me the steps? Sorry I am a noob with the pi :(

edmaul69

@DrFreeman ssh_config and sshd_config are 2 different files. try adding this to /etc/ssh/sshd_config and then restart your pi. you might need to install some package that is not on your pi.

# Package generated configuration file
# See the sshd_config(5) manpage for details

# What ports, IPs and protocols we listen for
Port 22
# Use these options to restrict which interfaces/protocols sshd will bind to
#ListenAddress ::
#ListenAddress 0.0.0.0
Protocol 2
# HostKeys for protocol version 2
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_dsa_key
HostKey /etc/ssh/ssh_host_ecdsa_key
HostKey /etc/ssh/ssh_host_ed25519_key
#Privilege Separation is turned on for security
UsePrivilegeSeparation yes

# Lifetime and size of ephemeral version 1 server key
KeyRegenerationInterval 3600
ServerKeyBits 1024

# Logging
SyslogFacility AUTH
LogLevel INFO

# Authentication:
LoginGraceTime 120
PermitRootLogin yes
StrictModes yes

RSAAuthentication yes
PubkeyAuthentication yes
#AuthorizedKeysFile	%h/.ssh/authorized_keys

# Don't read the user's ~/.rhosts and ~/.shosts files
IgnoreRhosts yes
# For this to work you will also need host keys in /etc/ssh_known_hosts
RhostsRSAAuthentication no
# similar for protocol version 2
HostbasedAuthentication no
# Uncomment if you don't trust ~/.ssh/known_hosts for RhostsRSAAuthentication
#IgnoreUserKnownHosts yes

# To enable empty passwords, change to yes (NOT RECOMMENDED)
PermitEmptyPasswords no

# Change to yes to enable challenge-response passwords (beware issues with
# some PAM modules and threads)
ChallengeResponseAuthentication no

# Change to no to disable tunnelled clear text passwords
#PasswordAuthentication yes

# Kerberos options
#KerberosAuthentication no
#KerberosGetAFSToken no
#KerberosOrLocalPasswd yes
#KerberosTicketCleanup yes

# GSSAPI options
#GSSAPIAuthentication no
#GSSAPICleanupCredentials yes

X11Forwarding yes
X11DisplayOffset 10
PrintMotd no
PrintLastLog yes
TCPKeepAlive yes
#UseLogin no

#MaxStartups 10:30:60
#Banner /etc/issue.net

# Allow client to pass locale environment variables
AcceptEnv LANG LC_*

Subsystem sftp /usr/lib/openssh/sftp-server

# Set this to 'yes' to enable PAM authentication, account processing,
# and session processing. If this is enabled, PAM authentication will
# be allowed through the ChallengeResponseAuthentication and
# PasswordAuthentication.  Depending on your PAM configuration,
# PAM authentication via ChallengeResponseAuthentication may bypass
# the setting of "PermitRootLogin without-password".
# If you just want the PAM account and session checks to run without
# PAM authentication, then enable this but set PasswordAuthentication
# and ChallengeResponseAuthentication to 'no'.
UsePAM yes

DrFreeman

ok so should I add just a blank file first and just reboot?

edmaul69

@DrFreeman put this in the blank file, save then reboot.

DrFreeman

Man, thank you very much and for your patience!!! Really - you made my day :D