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Fix unsupported unsupported KEX algorithm #1158

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Merged
adskyiproger merged 1 commit into from
Nov 24, 2025
Merged

Fix unsupported unsupported KEX algorithm #1158

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6 changes: 3 additions & 3 deletions infrastructure/server-setup/files/sshd_audit_hardening.24.04.conf
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Original file line number Diff line number Diff line change
@@ -1,11 +1,11 @@
# Source: https://www.ssh-audit.com/hardening_guides.html#ubuntu_24_04_lts
# Restrict key exchange, cipher, and MAC algorithms, as per sshaudit.com hardening guide.
KexAlgorithms [email protected],gss-curve25519-sha256-,curve25519-sha256,curve25519-sha256@libssh.org,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha256,gss-group16-sha512-,diffie-hellman-group16-sha512
KexAlgorithms [email protected],curve25519-sha256,[email protected],diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512
Ciphers [email protected],[email protected],aes256-ctr,aes192-ctr,[email protected],aes128-ctr
MACs [email protected],[email protected],[email protected]
RequiredRSASize 3072
HostKeyAlgorithms [email protected],[email protected],[email protected],[email protected],[email protected],ssh-ed25519,rsa-sha2-512,rsa-sha2-256
CASignatureAlgorithms [email protected],ssh-ed25519,rsa-sha2-512,rsa-sha2-256
GSSAPIKexAlgorithms gss-curve25519-sha256-,gss-group16-sha512-
#GSSAPIKexAlgorithms gss-curve25519-sha256-,gss-group16-sha512-
HostbasedAcceptedAlgorithms [email protected],[email protected],[email protected],[email protected],[email protected],ssh-ed25519,rsa-sha2-512,rsa-sha2-256
PubkeyAcceptedAlgorithms [email protected],[email protected],[email protected],[email protected],[email protected],ssh-ed25519,rsa-sha2-512,rsa-sha2-256
PubkeyAcceptedAlgorithms [email protected],[email protected],[email protected],[email protected],[email protected],ssh-ed25519,rsa-sha2-512,rsa-sha2-256
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