permission denied (publickey)

[lancebermudez]

want key based so i dont have to put in the password of user or passphrase

I have edited the ssh_config
from #Protocol 2, 1 to Protocol 2 with out the #

I have edited the sshd_config
PermitRootLogin yes to PermitRootLogin no
#PasswordAuthentication no to PasswordAuthentication no

i have the same file changes on the other 2 computers. I have 3 computer all together 1 xbuntu and the other 2 are ubuntu. All have the authorized_keys with chmod 400 persmissons id_dsa.pub and known_host file
one has id_dsa and it will not talk to the other computer either

aceraspire@momacer:~$ ls -l .ssh
total 16
-r-------- 1 aceraspire aceraspire 605 2010-03-25 11:21 authorized_keys
-rwxrwxrwx 1 aceraspire aceraspire 736 2010-03-03 20:28 id_dsa
-rwxrwxrwx 1 aceraspire aceraspire 605 2010-03-03 20:28 id_dsa.pub
-rw-r--r-- 1 aceraspire aceraspire 1326 2010-08-29 14:12 known_hosts

[lancebermudez]

I followed the book ubuntu unleashed 2010 edition
made folder .ssh in /home/user
cd into .ssh
ssh-keygen t dsa
it makes id_dsa and id_dsa.pub
touch authorized_keys
cat id_dsa.pub >> authorized_keys
chmod 400 authorized_keys
copy authorized_keys and id_dsa.pub to flash to copy to other computers
on the other computer made sure they had the same file permission as on this one

[lancebermudez]

I have one computer that can talk to the other 2 computer but the other 2 can not talk to it. please someone help I want all 3 to be able to talk to each other.

[lancebermudez]

I followed the book ubuntu unleashed 2010 edition
made folder .ssh in /home/user
cd into .ssh
ssh-keygen t dsa
it makes id_dsa and id_dsa.pub
touch authorized_keys
cat id_dsa.pub >> authorized_keys
chmod 400 authorized_keys
copy authorized_keys and id_dsa.pub to flash drive to copy to other computers .ssh folder

my problem is that I cant seem to get all 3 computer to use authorized_keys instead of the password for the computer for example
lance@Therese:~$ ssh aceraspire@momacer -p 22
aceraspire@momacer's password:

instead of
lance@bermudezl:~$ ssh lance@therese -p 22
Linux Therese 2.6.32-24-generic-pae #41-Ubuntu SMP Thu Aug 19 02:43:57 UTC 2010 i686 GNU/Linux
Ubuntu 10.04.1 LTS

Welcome to Ubuntu!
* Documentation: https://help.ubuntu.com/

Last login: Fri Sep 3 23:05:38 2010 from bermudezl.local
this one did what i wanted no password asked for

I have edited the sshd_config file on lance@therese and lance@bermudezl
PermitRootLogin yes to PermitRootLogin no
#PasswordAuthentication no to PasswordAuthentication no
I had to leave this as #PasswordAuthentication no on lance@momacer with out the change otherwise I would get
lance@bermudezl: ssh aceraspire@momacer -p 22
Permission denied (publickey).

authorized_keys works going from lance@bermudezl to lance@therese
asked for password going form lance@bermudezl to aceraspire@momacer
asked for password goning from lance@therese to aceraspire@momacer
Permission denied (publickey) going from aceraspire@momacer to lance@bermudezl
Permission denied (publickey) going from aceraspire@momacer to lance@therese

lance@bermudezl:~$ ls -l .ssh
total 16
-r-------- 1 lance lance 1821 2010-08-31 20:13 authorized_keys
-rwxrwxrwx 1 lance lance 736 2010-03-03 20:28 id_dsa
-rwxrwxrwx 1 lance lance 605 2010-03-03 20:28 id_dsa.pub
-rw-r--r-- 1 lance lance 1534 2010-09-03 22:29 known_hosts

aceraspire@momacer:~$ ls -l .ssh
total 36
-r-------- 1 aceraspire aceraspire 1821 2010-08-31 20:13 authorized_keys
-rwxr-xr-x 1 aceraspire aceraspire 605 2010-03-03 20:28 id_dsa.pub
-rw-r--r-- 1 aceraspire aceraspire 884 2010-09-03 22:49 known_hosts

lance@Therese:~$ ls -l .ssh
total 12
-r-------- 1 lance lance 605 2010-03-05 10:30 authorized_keys
-rwxrwxrwx 1 lance lance 605 2010-03-03 20:28 id_dsa.pub
-rwxrwxrwx 1 lance lance 3978 2010-09-03 22:50 known_hosts