diff --git a/server-install-base.sh b/server-install-base.sh
index 238516b..87801fc 100755
--- a/server-install-base.sh
+++ b/server-install-base.sh
@@ -3,5 +3,11 @@
 apt upgrade || exit 10
 apt install -y tmux ufw || exit 15
 
+sed -i '/PubkeyAuthentication/c\PubkeyAuthentication yes' /etc/ssh/sshd_config
+sed -i '/PasswordAuthentication/c\PasswordAuthentication no' /etc/ssh/sshd_config
+sed -i '/PermitRootLogin/c\PermitRootLogin prohibit-password' /etc/ssh/sshd_config
+systemctl restart sshd
+
 ufw allow ssh || exit 20
 yes | ufw enable
+