Rebex SSH Test result for 2a01:4f9:3071:1ce0::2:22

General information

Server Identification: SSH-2.0-OpenSSH_10.0p2 Debian-7
IP Address: 2a01:4f9:3071:1ce0::2
Generated at: 2026-03-07 19:17:00 UTC (4 hours ago) - clear cache
The server does not seem to be vulnerable to the Terrapin attack.

Key Exchange Algorithms

ext-info-s
Unknown
kex-strict-s-v00@openssh.com
Unknown
curve25519-sha256
Elliptic Curve Diffie-Hellman on Curve25519 with SHA-256 hash
Secure
curve25519-sha256@libssh.org
Elliptic Curve Diffie-Hellman on Curve25519 with SHA-256 hash
Secure
ecdh-sha2-nistp256
Elliptic Curve Diffie-Hellman on NIST P-256 curve with SHA-256 hash
Possible NSA backdoor. 		Secure
ecdh-sha2-nistp384
Elliptic Curve Diffie-Hellman on NIST P-384 curve with SHA-384 hash
Possible NSA backdoor. 		Secure
ecdh-sha2-nistp521
Elliptic Curve Diffie-Hellman on NIST P-521 curve with SHA-512 hash
Possible NSA backdoor. 		Secure
mlkem768x25519-sha256
Hybrid post-quantum key exchange combining ML-KEM-768 with X25519 and SHA-256
Secure
sntrup761x25519-sha512
Hybrid Streamlined NTRU Prime sntrup761 and X25519 with SHA-512
Secure
sntrup761x25519-sha512@openssh.com
Hybrid Streamlined NTRU Prime sntrup761 and X25519 with SHA-512 by OpenSSH
Secure

Server Host Key Algorithms

ssh-ed25519
Ed25519, an Edwards-curve Digital Signature Algorithm (EdDSA)
Secure
ecdsa-sha2-nistp256
Elliptic Curve Digital Signature Algorithm (ECDSA) on NIST P-256 curve with SHA-256 hash
Possible NSA backdoor. 		Secure
rsa-sha2-256
RSA with SHA-256 hash
Secure
rsa-sha2-512
RSA with SHA-512 hash
Secure

Encryption Algorithms

chacha20-poly1305@openssh.com
256-bit ChaCha20 with Poly1305 authenticator by OpenSSH
Secure
aes256-gcm@openssh.com
AES with 256-bit key in GCM mode by OpenSSH
Secure
aes128-gcm@openssh.com
AES with 128-bit key in GCM mode by OpenSSH
Secure
aes256-ctr
AES with 256-bit key in CTR mode
Secure
aes192-ctr
AES with 192-bit key in CTR mode
Secure
aes128-ctr
AES with 128-bit key in CTR mode
Secure

MAC Algorithms

umac-128-etm@openssh.com
128-bit Universal Hashing MAC (Encrypt-then-MAC) by OpenSSH
Secure
hmac-sha2-256-etm@openssh.com
Hash-based MAC using SHA-256 (Encrypt-then-MAC) by OpenSSH
Secure
hmac-sha2-512-etm@openssh.com
Hash-based MAC using SHA-512 (Encrypt-then-MAC) by OpenSSH
Secure
umac-128@openssh.com
128-bit Universal Hashing MAC by OpenSSH
Secure
hmac-sha2-256
Hash-based MAC using SHA-256
Secure
hmac-sha2-512
Hash-based MAC using SHA-512
Secure
umac-64-etm@openssh.com
64-bit UMAC (Universal Hashing MAC) (Encrypt-then-MAC) by OpenSSH
64-bit UMAC is no longer considered secure enough. Recommended tag size should be at least 128 bits. 		Weak
hmac-sha1-etm@openssh.com
Hash-based MAC using SHA-1 (Encrypt-then-MAC) by OpenSSH
SHA-1 is becoming deprecated - consider replacing with SHA-256 or SHA-512. 		Weak
umac-64@openssh.com
64-bit UMAC (Universal Hashing MAC) by OpenSSH
64-bit UMAC is no longer considered secure enough. 		Weak
hmac-sha1
Hash-based MAC using SHA-1
SHA-1 is becoming deprecated - consider replacing with SHA-256 or SHA-512. 		Weak

Compression Algorithms

none
No compression
Unknown
zlib@openssh.com
zlib compression by OpenSSH
Unknown

Server Public Keys

rsa-sha2-512

Key size: 3072bit
MD5 Fingerprint: 1f:45:94:9d:c1:44:af:82:60:b9:50:42:a9:c4:4f:37
SHA-256 Fingerprint: R2OyIsEWtDW6gt9pnp6aFFMXx0f+ZKdw8r3SkjqaQ34
Public key: 
---- BEGIN SSH2 PUBLIC KEY ----
Comment: "Saved by Rebex SSH"
AAAAB3NzaC1yc2EAAAADAQABAAABgQC0gT3SGkdcelEQQ6AAFLOnayboC8UcNxn2
viIjbF+8sAsZTIQne/+v8eA6uFQy+xBCGRo1Ujws/2KQhx1rgXB6jiw+tl3l8JBV
IzN1KvkluwetvWos54GlJqsJH4Vriu+Oox4kk5fI39Y8DgDfgEdwQQ2X5inFQmvZ
EBohrF80d6+t5cGjEfsLcZVXcXFrhuBxDhVTgoNkJigHVckCxx+vOP++OcMMKtC8
FiJZEeKe2iI/F1mb58lEvo6uSe4cEfUgYlH3P5XAwbp+q0U2KX525CsyzlPHh8W6
FN/OE1Kj7YyqAIUhZzjsMZ9SsUVPAIlk2Ca4PBqRhjLJoEV3w0ROhKIYmDfYxUFd
GY+dvSuf3/jBrPXoVT7iOwQA91XOaos9FYsbkLeI0Es+4upYkDjshdbYHGtkR9Pz
EICgTCjHmFFLQmVtlFhFdUcWBO2p8hWfTpHo1deFB/7Vi/vMYCVF/j3DKskEdI1w
O/43i3nvrw5KTQuNZQtK//niMKDwncM=
---- END SSH2 PUBLIC KEY ----

rsa-sha2-256

Key size: 3072bit
MD5 Fingerprint: 1f:45:94:9d:c1:44:af:82:60:b9:50:42:a9:c4:4f:37
SHA-256 Fingerprint: R2OyIsEWtDW6gt9pnp6aFFMXx0f+ZKdw8r3SkjqaQ34
Public key: 
---- BEGIN SSH2 PUBLIC KEY ----
Comment: "Saved by Rebex SSH"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---- END SSH2 PUBLIC KEY ----

ecdsa-sha2-nistp256

Key size: 256bit
MD5 Fingerprint: 0e:1f:40:97:f1:52:53:34:bd:57:e8:7a:8f:3e:8a:fa
SHA-256 Fingerprint: ZcuFP8WCmStZwhcRqkkhIEX3we3OLWmy+L/zrqRiV+c
Public key: 
---- BEGIN SSH2 PUBLIC KEY ----
Comment: "Saved by Rebex SSH"
AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBKkRI0FSoppL
Bm+1cquHUQ2YaE1IisTdgYp5bIt6vZ7pAgIinh/awaezK354lsnU5dvXFzFB9nuW
MG/KGwyXvss=
---- END SSH2 PUBLIC KEY ----

ssh-ed25519

Key size: 256bit
MD5 Fingerprint: 0a:ac:ee:cc:4a:77:f0:ff:99:df:3b:76:f7:77:1f:c7
SHA-256 Fingerprint: LicNUkGFBm4AOQFf3XknWYPBiGV3Q4x93JA5symk7BE
Public key: 
---- BEGIN SSH2 PUBLIC KEY ----
Comment: "Saved by Rebex SSH"
AAAAC3NzaC1lZDI1NTE5AAAAIKkD65C3Kum53P3K6LQ4ykCn1BBuw9Y/DnbM9Zle
SZw+
---- END SSH2 PUBLIC KEY ----