Tomster/Linux-Setup-Scripts
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More SSH Hardening

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Signed-off-by: Tommy <contact@tommytran.io>
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Tommy 2024-07-01 13:42:21 -07:00 committed by GitHub
parent 70f007a264
commit a6a4f3085b
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1 changed files with 13 additions and 7 deletions
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20
etc/ssh/sshd_config.d/10-custom.conf
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@ -8,26 +8,32 @@ MACs -*
# Security hardening
AuthorizedKeysFile .ssh/authorized_keys
Compression no
DisableForwarding yes
LoginGraceTime 15s
MaxAuthTries 1
PermitUserRC no
StrictModes yes
UseDNS no
# Use KeepAlive over SSH instead of with TCP to prevent spoofing
TCPKeepAlive no
ClientAliveInterval 15
ClientAliveCountMax 4
## Use PAM for session checks here but authentication is disabled below
## Also, this prevents running sshd as non-root
UsePAM yes
# Disabling unused authentication methods
ChallengeResponseAuthentication no
GSSAPIAuthentication no
HostbasedAuthentication no
PasswordAuthentication no
PermitRootLogin no
PermitEmptyPasswords no
KbdInteractiveAuthentication no
KerberosAuthentication no
GSSAPIAuthentication no
# Disabling unused features
AllowAgentForwarding no
AllowTcpForwarding no
PermitTunnel no
X11Forwarding no
# Displaying info
Banner /etc/issue.net