Add ssh server

1 files changed, 28 insertions, 0 deletions

diff --git a/sshd_code_user.conf b/sshd_code_user.conf
new file mode 100644
index 0000000..19ef103
--- /dev/null
+++ b/sshd_code_user.conf
@@ -0,0 +1,28 @@
+# SSH configuration for the "code" user
+# This user can only access git repositories and cannot read other system files
+
+# Explicitly deny root login
+PermitRootLogin no
+
+# Deny user environment manipulation globally
+PermitUserEnvironment no
+
+# Only allow the "code" user to login via SSH
+AllowUsers code
+
+Match User code
+    # Only allow public key authentication
+    PubkeyAuthentication yes
+    PasswordAuthentication no
+    PermitEmptyPasswords no
+
+    # Use authorized_keys from a volume mount (outside the repositories directory)
+    AuthorizedKeysFile /etc/ssh/authorized_keys_code
+
+    # Restrict to necessary commands only - harden SSH
+    X11Forwarding no
+    AllowTcpForwarding no
+    AllowAgentForwarding no
+    PermitTunnel no
+    GatewayPorts no
+    PermitTTY yes