Hi,all

I am a new comer both for ssh and for this mailing list. I need your help now.

Here are the background of my question:

ssh version: 2.0.13

Remote Server and local client:
Solaris 2.7 for sparc(result of uname -a : SunOS solaris2 5.7 Generic sun4u sparc 
SUNW,Ultra-5_10)
Gcc 2.8.1

Remote Server have a "REAL" IP address while the client accessing the Internet via a 
NAT ISDN router, so the client doesn't have a "REAL" IP address itself.


After installing  the ssh both on the remote server and my local client, I did the 
following:
1. run ssh-keygen in local client 
2. echo "IdKey id_dsa_1024_a" > identification

3. run ssh-keygen in remote server and echo "IdKey id_dsa_1024_a" > identification

4. ftp id_dsa_1024_a.pub to the remote server , named it as office-sun.pub

5. echo "Key  office-sun.pub" >  authorization on the remote server

after those five steps, the remote server looks like:
# ls
...
drwxr-xr-x   3 yuq      yuq         512 Nov 11 19:13 ./
drwxr-x---  19 yuq      yuq        1024 Nov 11 19:03 ../
-rw-r--r--   1 yuq      yuq          21 Nov 11 19:14 authorization
-rw-------   1 yuq      yuq         872 Nov 11 19:04 id_dsa_1024_a
-rw-r--r--   1 yuq      yuq         733 Nov 11 19:04 id_dsa_1024_a.pub
-rw-r--r--   1 yuq      yuq          20 Nov 11 19:05 identification
-rw-r--r--   1 yuq      yuq         733 Nov 11 19:12 office-sun.pub
-rw-------   1 yuq      yuq         512 Nov 11 19:09 random_seed

and the local client  looks like:
# ls -al
...
drwxr-xr-x   3 yuq      yuq          512 Nov 11 16:50 ./
drwxr-xr-x   8 yuq      yuq          512 Nov 11 17:30 ../
-rw-------   1 yuq      yuq          872 Nov 11 16:41 id_dsa_1024_a
-rw-r--r--   1 yuq      yuq          733 Nov 11 16:41 id_dsa_1024_a.pub
-rw-r--r--   1 yuq      yuq           20 Nov 11 16:48 identification
-rw-------   1 yuq      yuq          512 Nov 11 18:08 random_seed


then I run the command on the local client:
#ssh <IP_of_remote_server>
Accepting host <IP_of_remote_server> key without checking.

Disconnected; authentication error (No further authentication methods available.).

My question is: 
a. Are there anything wrong in my configuration? 
b. From the error msg, it seems that the remote server did not think the 
office-sun.pub matched the private key on local client. Are there anything with the 
NAT? Is the key generated with ssh-keygen  based on IP address?
c. how can I make the ssh working?

any help will be highly appreciated.

Best Regards
Johnny Yu.

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