docker ssh 설치
: Docker 는 마이크로 서비스가 목적이므로 모든 서버는 반드시 sshd 가 설치될 이유는 없음
: 가상서버 환경 처럼 깔다보면 마이크로 서비스의 목적이 없어짐
: 일반 가상서버 사용하려면 가상화 이용 필요
openssh 설치
/usr/sbin/sshd
Could not load host key: /etc/ssh/ssh_host_rsa_key
Could not load host key: /etc/ssh/ssh_host_ecdsa_key
Could not load host key: /etc/ssh/ssh_host_ed25519_key
sshd: no hostkeys available -- exiting. |
ssh-keygen -t rsa1 -f /etc/ssh/ssh_host_key
Generating public/private rsa1 key pair.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /etc/ssh/ssh_host_key.
Your public key has been saved in /etc/ssh/ssh_host_key.pub.
The key fingerprint is:
SHA256:/GzJG16VN0cZ0rFerPglcN5eSYL46AWE76ZiOPLUmbs root@d6495ec74b8a
The key's randomart image is:
+---[RSA1 2048]---+
| .. ..o.|
| .. . . .o+|
| .o ....++|
| . .+ =+=o|
| S. o. *+*|
| . o .*.. o =+|
| ..+ o.B . . .|
| ..o o.. o + |
| o.oEo o |
+----[SHA256]-----+
|
ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key
Generating public/private rsa key pair.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /etc/ssh/ssh_host_rsa_key.
Your public key has been saved in /etc/ssh/ssh_host_rsa_key.pub.
The key fingerprint is:
SHA256:6kni1hV+1/3oVsNLtM3X89dAJAFiuNBLz9yLdyVe1g8 root@d6495ec74b8a
The key's randomart image is:
+---[RSA 2048]----+
| . .o .... |
| . +. . . . |
| o * . o . |
| o = . . E..|
| .So o Bo+=|
| .+ + + o*O|
| ..o. o o .+O|
| ..+.. o.=|
| .. o o. .|
+----[SHA256]-----+ |
ssh-keygen -t dsa -f /etc/ssh/ssh_host_dsa_key
Generating public/private dsa key pair.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /etc/ssh/ssh_host_dsa_key.
Your public key has been saved in /etc/ssh/ssh_host_dsa_key.pub.
The key fingerprint is:
SHA256:Qu4ZSGRHz62RWVrvld+vGr78jOOcfSeLy3+itjxrTPg root@d6495ec74b8a
The key's randomart image is:
+---[DSA 1024]----+
| o.o o |
| o . o B . . |
| . . B . . o |
| . + o . . ..|
| . + S .. o|
| . + . . .|
| o +. .|
| *EBo.+|
| +^%B*.|
+----[SHA256]-----+ |
ssh-keygen -t ecdsa -f /etc/ssh/ssh_host_ecdsa_key
Generating public/private ecdsa key pair.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /etc/ssh/ssh_host_ecdsa_key.
Your public key has been saved in /etc/ssh/ssh_host_ecdsa_key.pub.
The key fingerprint is:
SHA256:Vik8tzUUt3PNPrknyipP2253bPmulvpfRkhN8kqw3Bw root@d6495ec74b8a
The key's randomart image is:
+---[ECDSA 256]---+
| +.E .|
| . + * O.|
| + + = B *|
| = o + *.|
| S . ooo|
| . .o|
| . .+=|
| .. +..++*|
| o++*=o*=|
+----[SHA256]-----+ |
ssh-keygen -A
ssh-keygen: generating new host keys: ED25519 |
/usr/sbin/sshd
