ssh () (root) () (keys) root . .
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(ssh ) root .
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( ) (Public-key cryptography) (pass-phrase) . . root (ssh key) .
root

root . . .
:

  • .
  • .

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  • ( ) root ssh. root .
  • putty ssh. .
  • .



: .
: # ssh root # . # . $ ssh root.
: ssh

ssh . ɡ root. .
/root/newk
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# mkdir /root/newk
# cd /root/newk



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1 # ssh-keygen -t rsa -b 2048



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Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):


:
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1 /root/newk/id_rsa



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Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): /root/newk/id_rsa
Enter passphrase (empty for no passphrase):


passsphrase 8 .
. * ( Enter).

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Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): /root/newk/id_rsa
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /root/newk/id_rsa.
Your public key has been saved in /root/newk/id_rsa.pub.
The key fingerprint is:
89c04f:ceaa:643f:0e:bd09:c9 [email protected]
The key's randomart image is:
+--[ RSA 2048]----+
| |
| + |
| . + . |
| O o |
| o S . |
| + + |
| = E |
| + +oo . |
| oo++o |
+-----------------+


ssh /root/newk/ . ls
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# ls -lh /root/newk/
total 8.0K
-rw------- 1 root root 1.8K Jan 10 12:29 id_rsa
-rw-r--r-- 1 root root 403 Jan 10 12:29 id_rsa.pub


id_rsa id_rsa.pub id_rsa secret key id_rsa.pub public key.
:

ssh .
: ssh

id_rsa.pub ( ) authorized_keys .ssh root id_rsa.pub /root/.ssh/authorized_keys ( authorized_keys id_rsa.pub :
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1 # cat /root/newk/id_rsa.pub >> /root/.ssh/authorized_keys


id_rsa.pub /root/.ssh/authorized_keys
root .
:

(id_rsa) /root/newk/id_rsa.
id_rsa scp winsp rsync. .

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1 scp -p 22 /root/newk/id_rsa [email protected]er:~/


linux.computer


߿
id_rsa ssh :
: ssh :
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1 # ssh -p 22 -l root -i /root/id_rsa linux.server


linux.server id_rsa /root/id_rsa
: (id_rsa) /root/.ssh/
id_rsa /root/.ssh .
(pass-phrase) . :
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[[email protected] ~]# ssh -p 22 -l root -i /root/id_rsa linux.server
Enter passphrase for key 'id_rsa':
Last login: Mon Jan 28 21:35:54 2013 from pc.localhost
[email protected] [~]#


ssh .
putty

putty ҡ WinSCP .

() putty ppk file

putty PuTTYgen putty ppk putty putty PuTTYgen.
:
puttygen.exe :

File () Load private file :

id_rsa :

puttygen ( ) : ( OK).

:

putty save private key :

save private key save :

puttygen ppk putty putty ppk.
putty ()

putty session Hostname ssh 22 :

SSH Auth :

authentication parameters ppk browse :

Open session open :

putty ( ) :

root enter enter # .
.
putty ( putty () ).