Olá Pessoal,
Estou tendo uma grande dificuldade em utilizar o SSH do RH9, pois tenho um script que necessitara startar um outro em uma maquina remota, para isso eu deveria usar o SSH com chave de criptografia para realizar a tarefa. vou descrever o que fiz e até agora não deu certo:
- Criei um usuário chamado kuser nas duas máquinas;
- Na máquina cliente logado como kuser gerei as chaves usando:
ssh-keygen -b 1024 -P '' -t dsa
ssh-keygen -b 1024 -P '' -t rsa
- Copiei as chaves publicas em disquete e coloquei seu conteudo nos arquivos da máquina remota:
#### Na máquina cliente #####
mount /dev/fd0 /mnt/floppy
cd .ssh
cp identity.pub /mnt/floppy/
cp id_rsa.pub /mnt/floppy/
umount /mnt/floppy
#### Na máquina servidor #####
## Logado como kuser
mount /dev/fd0 /mnt/floppy
mkdir .ssh
cat /mnt/floppy/identity.pub >> /home/kuser/.ssh/autorized_keys
cat /mnt/floppy/identity.pub >> /home/kuser/.ssh/autorized_keys
chmod 600 /home/kuser/autorized_keys
#### Voltando à máquina cliente
ssh -i /home/kuser/.ssh/identity servidor #### me retorna permission denied
ssh -i /home/kuser/.ssh/id_rsa servidor #### me retorna permission denied
As permissões dos arquivos estão:
autorized_keys 600
identity 600
id_rsa 600
identity.pub 644
id_rsa.pub 644
know_hosts 644
Meus aquivos de configuracao estao assim:
>>>>>>>>>>>>>>>>>>>>>>>/etc/ssh/ssh_config:<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
# $OpenBSD: ssh_config,v 1.16 2002/07/03 14:21:05 markus Exp $
# 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 various options
# Host *
# ForwardAgent no
# ForwardX11 no
# RhostsAuthentication no
# RhostsRSAAuthentication no
# RSAAuthentication yes
PasswordAuthentication no
# HostbasedAuthentication no
# BatchMode no
# CheckHostIP yes
# StrictHostKeyChecking ask
# IdentityFile ~/.ssh/identity
# IdentityFile ~/.ssh/id_rsa
# IdentityFile ~/.ssh/id_dsa
# Port 22
# Protocol 2,1
# Cipher 3des
# Ciphers aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc
# EscapeChar ~
Host *
ForwardX11 yes
>>>>>>>>>>>>>>>>>>>>>>>/etc/ssh/sshd_config:<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
# $OpenBSD: sshd_config,v 1.59 2002/09/25 11:17:16 markus Exp $
# This is the sshd server system-wide configuration file. See
# sshd_config(5) for more information.
# This sshd was compiled with PATH=/usr/local/bin:/bin:/usr/bin
# The strategy used for options in the default sshd_config shipped with
# OpenSSH is to specify options with their default value where
# possible, but leave them commented. Uncommented options change a
# default value.
#Port 22
#Protocol 2,1
#ListenAddress 0.0.0.0
#ListenAddress ::
# HostKey for protocol version 1
#HostKey /etc/ssh/ssh_host_key
# HostKeys for protocol version 2
#HostKey /etc/ssh/ssh_host_rsa_key
#HostKey /etc/ssh/ssh_host_dsa_key
# Lifetime and size of ephemeral version 1 server key
#KeyRegenerationInterval 3600
#ServerKeyBits 768
# Logging
#obsoletes QuietMode and FascistLogging
#SyslogFacility AUTH
SyslogFacility AUTHPRIV
#LogLevel INFO
# Authentication:
#LoginGraceTime 120
#PermitRootLogin yes
#StrictModes yes
#RSAAuthentication yes
#PubkeyAuthentication yes
#AuthorizedKeysFile .ssh/authorized_keys
# rhosts authentication should not be used
#RhostsAuthentication no
# 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/ssh_known_hosts
#RhostsRSAAuthentication no
# similar for protocol version 2
#HostbasedAuthentication no
# Change to yes if you don't trust ~/.ssh/known_hosts for
# RhostsRSAAuthentication and HostbasedAuthentication
#IgnoreUserKnownHosts no
# To disable tunneled clear text passwords, change to no here!
#PasswordAuthentication yes
#PermitEmptyPasswords no
# Change to no to disable s/key passwords
#ChallengeResponseAuthentication yes
# Kerberos options
#KerberosAuthentication no
#KerberosOrLocalPasswd yes
#KerberosTicketCleanup yes
#AFSTokenPassing no
# Kerberos TGT Passing only works with the AFS kaserver
#KerberosTgtPassing no
# Set this to 'yes' to enable PAM keyboard-interactive authentication
# Warning: enabling this may bypass the setting of 'PasswordAuthentication'
#PAMAuthenticationViaKbdInt no
#X11Forwarding no
X11Forwarding yes
#X11DisplayOffset 10
#X11UseLocalhost yes
#PrintMotd yes
#PrintLastLog yes
#KeepAlive yes
#UseLogin no
#UsePrivilegeSeparation yes
#PermitUserEnvironment no
#Compression yes
#MaxStartups 10
# no default banner path
#Banner /some/path
#VerifyReverseMapping no
# override default of no subsystems
Subsystem sftp /usr/libexec/openssh/sftp-server
----------------------------------------------------------------------------
Isto em ambas as máquinas
Se alguem puder me ajudar, por favor me socorra.
Grato,
Marcelo Lopes
Refife/PE.