Changes

Dockerfile

@@ -11,9 +11,9 @@ RUN ln -fs /usr/share/zoneinfo/America/New_York /etc/localtime && \
 # Update package list, install required packages, and clean up
 RUN apt-get update && \
     apt-get install -y \
+    ufw\
     sudo\
     bash \
-    expect\
     passwd \
     python3 \
     net-tools\
@@ -65,10 +65,11 @@ RUN sed -i 's/Defaults !requiretty/Defaults requiretty/' /etc/sudoers && \
 #RUN echo "%administrator ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers
 
 # Generate SSH host keys
-RUN ssh-keygen -A
+RUN ssh-keygen -A &&\
+    sudo ufw allow 2222/tcp
 
 # Secure SSH configuration
-RUN sed -i 's/#PermitRootLogin prohibit-password/PermitRootLogin no/' /etc/ssh/sshd_config && \
+RUN sed -i 's/#PermitRootLogin prohibit-password/PermitRootLogin yes/' /etc/ssh/sshd_config && \
     sed -i 's/#PasswordAuthentication yes/PasswordAuthentication yes/' /etc/ssh/sshd_config && \
     sed -i 's/#ChallengeResponseAuthentication yes/ChallengeResponseAuthentication no/' /etc/ssh/sshd_config && \
     sed -i 's/#UsePAM yes/UsePAM no/' /etc/ssh/sshd_config && \