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Chapter 15: Advanced Configuration
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149
Figure 15-1.
If the Black Box device selected to be the server will only have one client device, then the authorized_keys file is simply a copy of the public key for
that device. If one or more devices will be clients of the server, then the authorized_keys file will contain a copy of all of the public keys. RSA and
DSA keys may be freely mixed in the authorized_keys file. For example, assume we already have one server, called bridge_server, and two sets of
keys, for the control_room and the plant_entrance:
$ ls /home/user/keys control_room control_room.pub plant_entrance plant_entrance.pub $ cat /home/user/keys/control_room.pub
/home/user/keys/plant_entrance.pub > /home/user/keys/authorized_keys_bridge_server
Figure 15-2.
More documentation on OpenSSH can be found at:
http://openssh.org/portable.html
Master
Slave
Slave
Master Master
authorized_key
ssh-rsa
AAAAB3NzaC1yC2Efg4+t
GHIAAA==name@client1
id_rsa
---BEGIN RSA
PRIVATE KEY----
MIBogIDAAKCAQEA
yIPGsNf5+aOLnPUMc
nujXXPGIQGyD3b79
KZg3UZMjZI525sCy
Opv4TjTvTK6a7QIYt
GYTByUdl
authorized_key
ssh-rsa
AAAAB3NzaC1yC2Efg4+t
GHIAAA==name@client1
id_rsa.pub
ssh-rsa AAAAB3NzaC1yc2Efg4+tGHIAAA==name@client1
LES1101A
LES1102A
LES1102A
id_dsa
-----BEGIN DSA
PRIVATE KEY----
MIIBugBAAKBgQCR
kixjJ0SKuiREXTM
xDPFp9HqBvEg7Ww9
oynY4QNiXj1YU7T
871TLQiAhn3yp72Wy
7Z5C3sLF8o46Go
ssh-dsa
AAAAB3NzaZr+OV01C8gdgz
XDg==name@client2
authorized_keys
ssh-rsa AAAAB3NzaC1yc2Efg4+IGHI
ssh-dss AAAAB3NzaZr+OV01C8gdgz
XDg==name@client2
ssh-rsa
AAAAB3NzaC1yc2Efg4+tG
HIAAA==name@client1
id_rsa
-----BEGIN DSA
PRIVATE KEY----
MIIEogIBAAKCAQEA
yIPGsNf5+a0LnPUMc
nujXXPGiQGyD3b79
KZf3UZ4MjZI525sCy
Opv4TjTvTK6e8QIYt
GYTByUdI
LES1102A
LES1102A
LES1102A