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503 lines
18 KiB
503 lines
18 KiB
2 years ago
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diff --color -ru a/ssh_config.5 b/ssh_config.5
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--- a/ssh_config.5 2022-07-12 15:05:22.550013071 +0200
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+++ b/ssh_config.5 2022-07-12 15:17:20.016704545 +0200
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@@ -373,17 +373,13 @@
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.Qq *.c.example.com
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domains.
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.It Cm CASignatureAlgorithms
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+The default is handled system-wide by
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+.Xr crypto-policies 7 .
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+Information about defaults, how to modify the defaults and how to customize existing policies with sub-policies are present in manual page
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+.Xr update-crypto-policies 8 .
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+.Pp
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Specifies which algorithms are allowed for signing of certificates
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by certificate authorities (CAs).
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-The default is:
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-.Bd -literal -offset indent
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-ssh-ed25519,ecdsa-sha2-nistp256,
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-ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,
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-sk-ssh-ed25519@openssh.com,
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-sk-ecdsa-sha2-nistp256@openssh.com,
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-rsa-sha2-512,rsa-sha2-256
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-.Ed
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-.Pp
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If the specified list begins with a
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.Sq +
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character, then the specified algorithms will be appended to the default set
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@@ -445,20 +441,25 @@
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(the default),
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the check will not be executed.
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.It Cm Ciphers
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+The default is handled system-wide by
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+.Xr crypto-policies 7 .
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+Information about defaults, how to modify the defaults and how to customize existing policies with sub-policies are present in manual page
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+.Xr update-crypto-policies 8 .
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+.Pp
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Specifies the ciphers allowed and their order of preference.
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Multiple ciphers must be comma-separated.
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If the specified list begins with a
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.Sq +
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-character, then the specified ciphers will be appended to the default set
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-instead of replacing them.
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+character, then the specified ciphers will be appended to the built-in
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+openssh default set instead of replacing them.
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If the specified list begins with a
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.Sq -
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character, then the specified ciphers (including wildcards) will be removed
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-from the default set instead of replacing them.
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+from the built-in openssh default set instead of replacing them.
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If the specified list begins with a
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.Sq ^
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character, then the specified ciphers will be placed at the head of the
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-default set.
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+built-in openssh default set.
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.Pp
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The supported ciphers are:
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.Bd -literal -offset indent
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@@ -474,13 +475,6 @@
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chacha20-poly1305@openssh.com
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.Ed
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.Pp
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-The default is:
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-.Bd -literal -offset indent
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-chacha20-poly1305@openssh.com,
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-aes128-ctr,aes192-ctr,aes256-ctr,
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-aes128-gcm@openssh.com,aes256-gcm@openssh.com
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-.Ed
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-.Pp
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The list of available ciphers may also be obtained using
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.Qq ssh -Q cipher .
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.It Cm ClearAllForwardings
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@@ -874,6 +868,11 @@
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The default is
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.Dq no .
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.It Cm GSSAPIKexAlgorithms
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+The default is handled system-wide by
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+.Xr crypto-policies 7 .
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+Information about defaults, how to modify the defaults and how to customize existing policies with sub-policies are present in manual page
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+.Xr update-crypto-policies 8 .
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+.Pp
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The list of key exchange algorithms that are offered for GSSAPI
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key exchange. Possible values are
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.Bd -literal -offset 3n
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@@ -886,10 +885,8 @@
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gss-curve25519-sha256-
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.Ed
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.Pp
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-The default is
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-.Dq gss-group14-sha256-,gss-group16-sha512-,gss-nistp256-sha256-,
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-gss-curve25519-sha256-,gss-group14-sha1-,gss-gex-sha1- .
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This option only applies to connections using GSSAPI.
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+.Pp
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.It Cm HashKnownHosts
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Indicates that
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.Xr ssh 1
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@@ -1219,29 +1216,25 @@
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and
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.Cm pam .
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.It Cm KexAlgorithms
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+The default is handled system-wide by
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+.Xr crypto-policies 7 .
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+Information about defaults, how to modify the defaults and how to customize existing policies with sub-policies are present in manual page
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+.Xr update-crypto-policies 8 .
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+.Pp
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Specifies the available KEX (Key Exchange) algorithms.
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Multiple algorithms must be comma-separated.
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If the specified list begins with a
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.Sq +
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-character, then the specified methods will be appended to the default set
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-instead of replacing them.
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+character, then the specified methods will be appended to the built-in
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+openssh default set instead of replacing them.
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If the specified list begins with a
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.Sq -
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character, then the specified methods (including wildcards) will be removed
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-from the default set instead of replacing them.
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+from the built-in openssh default set instead of replacing them.
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If the specified list begins with a
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.Sq ^
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character, then the specified methods will be placed at the head of the
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-default set.
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-The default is:
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-.Bd -literal -offset indent
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-curve25519-sha256,curve25519-sha256@libssh.org,
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-ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,
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-diffie-hellman-group-exchange-sha256,
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-diffie-hellman-group16-sha512,
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-diffie-hellman-group18-sha512,
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-diffie-hellman-group14-sha256
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-.Ed
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+built-in openssh default set.
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.Pp
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The list of available key exchange algorithms may also be obtained using
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.Qq ssh -Q kex .
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@@ -1351,37 +1344,33 @@
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file.
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This option is intended for debugging and no overrides are enabled by default.
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.It Cm MACs
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+The default is handled system-wide by
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+.Xr crypto-policies 7 .
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+Information about defaults, how to modify the defaults and how to customize existing policies with sub-policies are present in manual page
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+.Xr update-crypto-policies 8 .
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+.Pp
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Specifies the MAC (message authentication code) algorithms
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in order of preference.
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The MAC algorithm is used for data integrity protection.
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Multiple algorithms must be comma-separated.
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If the specified list begins with a
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.Sq +
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-character, then the specified algorithms will be appended to the default set
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-instead of replacing them.
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+character, then the specified algorithms will be appended to the built-in
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+openssh default set instead of replacing them.
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If the specified list begins with a
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.Sq -
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character, then the specified algorithms (including wildcards) will be removed
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-from the default set instead of replacing them.
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+from the built-in openssh default set instead of replacing them.
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If the specified list begins with a
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.Sq ^
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character, then the specified algorithms will be placed at the head of the
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-default set.
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+built-in openssh default set.
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.Pp
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The algorithms that contain
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.Qq -etm
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calculate the MAC after encryption (encrypt-then-mac).
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These are considered safer and their use recommended.
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.Pp
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-The default is:
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-.Bd -literal -offset indent
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-umac-64-etm@openssh.com,umac-128-etm@openssh.com,
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-hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,
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-hmac-sha1-etm@openssh.com,
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-umac-64@openssh.com,umac-128@openssh.com,
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-hmac-sha2-256,hmac-sha2-512,hmac-sha1
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-.Ed
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-.Pp
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The list of available MAC algorithms may also be obtained using
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.Qq ssh -Q mac .
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.It Cm NoHostAuthenticationForLocalhost
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@@ -1553,37 +1542,25 @@
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The default is
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.Cm no .
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.It Cm PubkeyAcceptedAlgorithms
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+The default is handled system-wide by
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+.Xr crypto-policies 7 .
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+Information about defaults, how to modify the defaults and how to customize existing policies with sub-policies are present in manual page
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+.Xr update-crypto-policies 8 .
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+.Pp
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Specifies the signature algorithms that will be used for public key
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authentication as a comma-separated list of patterns.
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If the specified list begins with a
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.Sq +
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-character, then the algorithms after it will be appended to the default
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-instead of replacing it.
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+character, then the algorithms after it will be appended to the built-in
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+openssh default instead of replacing it.
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|
|
If the specified list begins with a
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|
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.Sq -
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|
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character, then the specified algorithms (including wildcards) will be removed
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|
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-from the default set instead of replacing them.
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|
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+from the built-in openssh default set instead of replacing them.
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|
|
If the specified list begins with a
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|
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.Sq ^
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character, then the specified algorithms will be placed at the head of the
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-default set.
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-The default for this option is:
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-.Bd -literal -offset 3n
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-ssh-ed25519-cert-v01@openssh.com,
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-ecdsa-sha2-nistp256-cert-v01@openssh.com,
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-ecdsa-sha2-nistp384-cert-v01@openssh.com,
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-ecdsa-sha2-nistp521-cert-v01@openssh.com,
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-sk-ssh-ed25519-cert-v01@openssh.com,
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-sk-ecdsa-sha2-nistp256-cert-v01@openssh.com,
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-rsa-sha2-512-cert-v01@openssh.com,
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-rsa-sha2-256-cert-v01@openssh.com,
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-ssh-rsa-cert-v01@openssh.com,
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-ssh-ed25519,
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|
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-ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,
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|
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-sk-ssh-ed25519@openssh.com,
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|
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-sk-ecdsa-sha2-nistp256@openssh.com,
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|
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-rsa-sha2-512,rsa-sha2-256,ssh-rsa
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-.Ed
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+built-in openssh default set.
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.Pp
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The list of available signature algorithms may also be obtained using
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.Qq ssh -Q PubkeyAcceptedAlgorithms .
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diff --color -ru a/sshd_config.5 b/sshd_config.5
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--- a/sshd_config.5 2022-07-12 15:05:22.535012771 +0200
|
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|
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+++ b/sshd_config.5 2022-07-12 15:15:33.394809258 +0200
|
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|
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@@ -373,17 +373,13 @@
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then no banner is displayed.
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|
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By default, no banner is displayed.
|
||
|
|
.It Cm CASignatureAlgorithms
|
||
|
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+The default is handled system-wide by
|
||
|
|
+.Xr crypto-policies 7 .
|
||
|
|
+Information about defaults, how to modify the defaults and how to customize existing policies with sub-policies are present in manual page
|
||
|
|
+.Xr update-crypto-policies 8 .
|
||
|
|
+.Pp
|
||
|
|
Specifies which algorithms are allowed for signing of certificates
|
||
|
|
by certificate authorities (CAs).
|
||
|
|
-The default is:
|
||
|
|
-.Bd -literal -offset indent
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||
|
|
-ssh-ed25519,ecdsa-sha2-nistp256,
|
||
|
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-ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,
|
||
|
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-sk-ssh-ed25519@openssh.com,
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||
|
|
-sk-ecdsa-sha2-nistp256@openssh.com,
|
||
|
|
-rsa-sha2-512,rsa-sha2-256
|
||
|
|
-.Ed
|
||
|
|
-.Pp
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||
|
|
If the specified list begins with a
|
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|
|
.Sq +
|
||
|
|
character, then the specified algorithms will be appended to the default set
|
||
|
|
@@ -450,20 +446,25 @@
|
||
|
|
indicating not to
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||
|
|
.Xr chroot 2 .
|
||
|
|
.It Cm Ciphers
|
||
|
|
+The default is handled system-wide by
|
||
|
|
+.Xr crypto-policies 7 .
|
||
|
|
+Information about defaults, how to modify the defaults and how to customize existing policies with sub-policies are present in manual page
|
||
|
|
+.Xr update-crypto-policies 8 .
|
||
|
|
+.Pp
|
||
|
|
Specifies the ciphers allowed.
|
||
|
|
Multiple ciphers must be comma-separated.
|
||
|
|
If the specified list begins with a
|
||
|
|
.Sq +
|
||
|
|
-character, then the specified ciphers will be appended to the default set
|
||
|
|
-instead of replacing them.
|
||
|
|
+character, then the specified ciphers will be appended to the built-in
|
||
|
|
+openssh default set instead of replacing them.
|
||
|
|
If the specified list begins with a
|
||
|
|
.Sq -
|
||
|
|
character, then the specified ciphers (including wildcards) will be removed
|
||
|
|
-from the default set instead of replacing them.
|
||
|
|
+from the built-in openssh default set instead of replacing them.
|
||
|
|
If the specified list begins with a
|
||
|
|
.Sq ^
|
||
|
|
character, then the specified ciphers will be placed at the head of the
|
||
|
|
-default set.
|
||
|
|
+built-in openssh default set.
|
||
|
|
.Pp
|
||
|
|
The supported ciphers are:
|
||
|
|
.Pp
|
||
|
|
@@ -490,13 +491,6 @@
|
||
|
|
chacha20-poly1305@openssh.com
|
||
|
|
.El
|
||
|
|
.Pp
|
||
|
|
-The default is:
|
||
|
|
-.Bd -literal -offset indent
|
||
|
|
-chacha20-poly1305@openssh.com,
|
||
|
|
-aes128-ctr,aes192-ctr,aes256-ctr,
|
||
|
|
-aes128-gcm@openssh.com,aes256-gcm@openssh.com
|
||
|
|
-.Ed
|
||
|
|
-.Pp
|
||
|
|
The list of available ciphers may also be obtained using
|
||
|
|
.Qq ssh -Q cipher .
|
||
|
|
.It Cm ClientAliveCountMax
|
||
|
|
@@ -685,21 +679,22 @@
|
||
|
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.Cm GSSAPIKeyExchange
|
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|
|
needs to be enabled in the server and also used by the client.
|
||
|
|
.It Cm GSSAPIKexAlgorithms
|
||
|
|
+The default is handled system-wide by
|
||
|
|
+.Xr crypto-policies 7 .
|
||
|
|
+Information about defaults, how to modify the defaults and how to customize existing policies with sub-policies are present in manual page
|
||
|
|
+.Xr update-crypto-policies 8 .
|
||
|
|
+.Pp
|
||
|
|
The list of key exchange algorithms that are accepted by GSSAPI
|
||
|
|
key exchange. Possible values are
|
||
|
|
.Bd -literal -offset 3n
|
||
|
|
-gss-gex-sha1-,
|
||
|
|
-gss-group1-sha1-,
|
||
|
|
-gss-group14-sha1-,
|
||
|
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-gss-group14-sha256-,
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||
|
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-gss-group16-sha512-,
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-gss-nistp256-sha256-,
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+gss-gex-sha1-
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+gss-group1-sha1-
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+gss-group14-sha1-
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+gss-group14-sha256-
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+gss-group16-sha512-
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|
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+gss-nistp256-sha256-
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|
|
gss-curve25519-sha256-
|
||
|
|
.Ed
|
||
|
|
-.Pp
|
||
|
|
-The default is
|
||
|
|
-.Dq gss-group14-sha256-,gss-group16-sha512-,gss-nistp256-sha256-,
|
||
|
|
-gss-curve25519-sha256-,gss-group14-sha1-,gss-gex-sha1- .
|
||
|
|
This option only applies to connections using GSSAPI.
|
||
|
|
.It Cm HostbasedAcceptedAlgorithms
|
||
|
|
Specifies the signature algorithms that will be accepted for hostbased
|
||
|
|
@@ -799,26 +794,13 @@
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||
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.Ev SSH_AUTH_SOCK
|
||
|
|
environment variable.
|
||
|
|
.It Cm HostKeyAlgorithms
|
||
|
|
+The default is handled system-wide by
|
||
|
|
+.Xr crypto-policies 7 .
|
||
|
|
+Information about defaults, how to modify the defaults and how to customize existing policies with sub-policies are present in manual page
|
||
|
|
+.Xr update-crypto-policies 8 .
|
||
|
|
+.Pp
|
||
|
|
Specifies the host key signature algorithms
|
||
|
|
that the server offers.
|
||
|
|
-The default for this option is:
|
||
|
|
-.Bd -literal -offset 3n
|
||
|
|
-ssh-ed25519-cert-v01@openssh.com,
|
||
|
|
-ecdsa-sha2-nistp256-cert-v01@openssh.com,
|
||
|
|
-ecdsa-sha2-nistp384-cert-v01@openssh.com,
|
||
|
|
-ecdsa-sha2-nistp521-cert-v01@openssh.com,
|
||
|
|
-sk-ssh-ed25519-cert-v01@openssh.com,
|
||
|
|
-sk-ecdsa-sha2-nistp256-cert-v01@openssh.com,
|
||
|
|
-rsa-sha2-512-cert-v01@openssh.com,
|
||
|
|
-rsa-sha2-256-cert-v01@openssh.com,
|
||
|
|
-ssh-rsa-cert-v01@openssh.com,
|
||
|
|
-ssh-ed25519,
|
||
|
|
-ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,
|
||
|
|
-sk-ssh-ed25519@openssh.com,
|
||
|
|
-sk-ecdsa-sha2-nistp256@openssh.com,
|
||
|
|
-rsa-sha2-512,rsa-sha2-256,ssh-rsa
|
||
|
|
-.Ed
|
||
|
|
-.Pp
|
||
|
|
The list of available signature algorithms may also be obtained using
|
||
|
|
.Qq ssh -Q HostKeyAlgorithms .
|
||
|
|
.It Cm IgnoreRhosts
|
||
|
|
@@ -965,20 +947,25 @@
|
||
|
|
The default is
|
||
|
|
.Cm yes .
|
||
|
|
.It Cm KexAlgorithms
|
||
|
|
+The default is handled system-wide by
|
||
|
|
+.Xr crypto-policies 7 .
|
||
|
|
+Information about defaults, how to modify the defaults and how to customize existing policies with sub-policies are present in manual page
|
||
|
|
+.Xr update-crypto-policies 8 .
|
||
|
|
+.Pp
|
||
|
|
Specifies the available KEX (Key Exchange) algorithms.
|
||
|
|
Multiple algorithms must be comma-separated.
|
||
|
|
Alternately if the specified list begins with a
|
||
|
|
.Sq +
|
||
|
|
-character, then the specified methods will be appended to the default set
|
||
|
|
-instead of replacing them.
|
||
|
|
+character, then the specified methods will be appended to the built-in
|
||
|
|
+openssh default set instead of replacing them.
|
||
|
|
If the specified list begins with a
|
||
|
|
.Sq -
|
||
|
|
character, then the specified methods (including wildcards) will be removed
|
||
|
|
-from the default set instead of replacing them.
|
||
|
|
+from the built-in openssh default set instead of replacing them.
|
||
|
|
If the specified list begins with a
|
||
|
|
.Sq ^
|
||
|
|
character, then the specified methods will be placed at the head of the
|
||
|
|
-default set.
|
||
|
|
+built-in openssh default set.
|
||
|
|
The supported algorithms are:
|
||
|
|
.Pp
|
||
|
|
.Bl -item -compact -offset indent
|
||
|
|
@@ -1010,15 +997,6 @@
|
||
|
|
sntrup761x25519-sha512@openssh.com
|
||
|
|
.El
|
||
|
|
.Pp
|
||
|
|
-The default is:
|
||
|
|
-.Bd -literal -offset indent
|
||
|
|
-curve25519-sha256,curve25519-sha256@libssh.org,
|
||
|
|
-ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,
|
||
|
|
-diffie-hellman-group-exchange-sha256,
|
||
|
|
-diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,
|
||
|
|
-diffie-hellman-group14-sha256
|
||
|
|
-.Ed
|
||
|
|
-.Pp
|
||
|
|
The list of available key exchange algorithms may also be obtained using
|
||
|
|
.Qq ssh -Q KexAlgorithms .
|
||
|
|
.It Cm ListenAddress
|
||
|
|
@@ -1104,21 +1082,26 @@
|
||
|
|
file.
|
||
|
|
This option is intended for debugging and no overrides are enabled by default.
|
||
|
|
.It Cm MACs
|
||
|
|
+The default is handled system-wide by
|
||
|
|
+.Xr crypto-policies 7 .
|
||
|
|
+Information about defaults, how to modify the defaults and how to customize existing policies with sub-policies are present in manual page
|
||
|
|
+.Xr update-crypto-policies 8 .
|
||
|
|
+.Pp
|
||
|
|
Specifies the available MAC (message authentication code) algorithms.
|
||
|
|
The MAC algorithm is used for data integrity protection.
|
||
|
|
Multiple algorithms must be comma-separated.
|
||
|
|
If the specified list begins with a
|
||
|
|
.Sq +
|
||
|
|
-character, then the specified algorithms will be appended to the default set
|
||
|
|
-instead of replacing them.
|
||
|
|
+character, then the specified algorithms will be appended to the built-in
|
||
|
|
+openssh default set instead of replacing them.
|
||
|
|
If the specified list begins with a
|
||
|
|
.Sq -
|
||
|
|
character, then the specified algorithms (including wildcards) will be removed
|
||
|
|
-from the default set instead of replacing them.
|
||
|
|
+from the built-in openssh default set instead of replacing them.
|
||
|
|
If the specified list begins with a
|
||
|
|
.Sq ^
|
||
|
|
character, then the specified algorithms will be placed at the head of the
|
||
|
|
-default set.
|
||
|
|
+built-in openssh default set.
|
||
|
|
.Pp
|
||
|
|
The algorithms that contain
|
||
|
|
.Qq -etm
|
||
|
|
@@ -1161,15 +1144,6 @@
|
||
|
|
umac-128-etm@openssh.com
|
||
|
|
.El
|
||
|
|
.Pp
|
||
|
|
-The default is:
|
||
|
|
-.Bd -literal -offset indent
|
||
|
|
-umac-64-etm@openssh.com,umac-128-etm@openssh.com,
|
||
|
|
-hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,
|
||
|
|
-hmac-sha1-etm@openssh.com,
|
||
|
|
-umac-64@openssh.com,umac-128@openssh.com,
|
||
|
|
-hmac-sha2-256,hmac-sha2-512,hmac-sha1
|
||
|
|
-.Ed
|
||
|
|
-.Pp
|
||
|
|
The list of available MAC algorithms may also be obtained using
|
||
|
|
.Qq ssh -Q mac .
|
||
|
|
.It Cm Match
|
||
|
|
@@ -1548,37 +1522,25 @@
|
||
|
|
The default is
|
||
|
|
.Cm yes .
|
||
|
|
.It Cm PubkeyAcceptedAlgorithms
|
||
|
|
+The default is handled system-wide by
|
||
|
|
+.Xr crypto-policies 7 .
|
||
|
|
+Information about defaults, how to modify the defaults and how to customize existing policies with sub-policies are present in manual page
|
||
|
|
+.Xr update-crypto-policies 8 .
|
||
|
|
+.Pp
|
||
|
|
Specifies the signature algorithms that will be accepted for public key
|
||
|
|
authentication as a list of comma-separated patterns.
|
||
|
|
Alternately if the specified list begins with a
|
||
|
|
.Sq +
|
||
|
|
-character, then the specified algorithms will be appended to the default set
|
||
|
|
-instead of replacing them.
|
||
|
|
+character, then the specified algorithms will be appended to the built-in
|
||
|
|
+openssh default set instead of replacing them.
|
||
|
|
If the specified list begins with a
|
||
|
|
.Sq -
|
||
|
|
character, then the specified algorithms (including wildcards) will be removed
|
||
|
|
-from the default set instead of replacing them.
|
||
|
|
+from the built-in openssh default set instead of replacing them.
|
||
|
|
If the specified list begins with a
|
||
|
|
.Sq ^
|
||
|
|
character, then the specified algorithms will be placed at the head of the
|
||
|
|
-default set.
|
||
|
|
-The default for this option is:
|
||
|
|
-.Bd -literal -offset 3n
|
||
|
|
-ssh-ed25519-cert-v01@openssh.com,
|
||
|
|
-ecdsa-sha2-nistp256-cert-v01@openssh.com,
|
||
|
|
-ecdsa-sha2-nistp384-cert-v01@openssh.com,
|
||
|
|
-ecdsa-sha2-nistp521-cert-v01@openssh.com,
|
||
|
|
-sk-ssh-ed25519-cert-v01@openssh.com,
|
||
|
|
-sk-ecdsa-sha2-nistp256-cert-v01@openssh.com,
|
||
|
|
-rsa-sha2-512-cert-v01@openssh.com,
|
||
|
|
-rsa-sha2-256-cert-v01@openssh.com,
|
||
|
|
-ssh-rsa-cert-v01@openssh.com,
|
||
|
|
-ssh-ed25519,
|
||
|
|
-ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,
|
||
|
|
-sk-ssh-ed25519@openssh.com,
|
||
|
|
-sk-ecdsa-sha2-nistp256@openssh.com,
|
||
|
|
-rsa-sha2-512,rsa-sha2-256,ssh-rsa
|
||
|
|
-.Ed
|
||
|
|
+built-in openssh default set.
|
||
|
|
.Pp
|
||
|
|
The list of available signature algorithms may also be obtained using
|
||
|
|
.Qq ssh -Q PubkeyAcceptedAlgorithms .
|