Reviewed-by: Michael Tremer michael.tremer@ipfire.org
On 20 Jan 2020, at 20:05, Peter Müller peter.mueller@ipfire.org wrote:
Signed-off-by: Peter Müller peter.mueller@ipfire.org
config/ssh/ssh_config | 27 +++++++++++++-------------- 1 file changed, 13 insertions(+), 14 deletions(-)
diff --git a/config/ssh/ssh_config b/config/ssh/ssh_config index 2abfae6d1..2e2ee60c3 100644 --- a/config/ssh/ssh_config +++ b/config/ssh/ssh_config @@ -1,33 +1,32 @@ -# OpenSSH client configuration +# OpenSSH client configuration file for IPFire # -# set some basic hardening options for all connections +# The full documentation is available at: https://man.openbsd.org/ssh_config +#
+# Set some basic hardening options for all connections Host *
# disable Roaming as it is known to be vulnerable
# Disable Roaming as it is known to be vulnerable UseRoaming no
# only use secure crypto algorithm
# Only use secure crypto algorithms KexAlgorithms curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256 Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes128-gcm@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512,hmac-sha2-256,umac-128@openssh.com
# always visualise server host keys (has no technical# effect, but helps to identify key based MITM attacks)
# Always visualise server host keys (but helps to identify key based MITM attacks) VisualHostKey yes
# use SSHFP (might work on some up-to-date networks) to look up host keys
# Use SSHFP (might work on some up-to-date networks) to look up host keys VerifyHostKeyDNS yes # send keep-alive messages to connected server to avoid broken connections ServerAliveInterval 10 ServerAliveCountMax 6
# disable X11 forwarding (security risk)ForwardX11 no# always check server IP addressCheckHostIP yes# ensure only allowed authentication methods are used
# Ensure only allowed authentication methods are used PreferredAuthentications publickey,keyboard-interactive,password# Prevent information leak by hashing ~/.ssh/known_hosts
HashKnownHosts yes
# EOF
2.16.4