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Add backup for original SSH config

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Backup original SSH configuration before making changes.
This commit is contained in:
buildplan
2025-10-13 14:45:15 +01:00
committed by GitHub
parent 1f3932d1e2
commit d12d50d5be
1 changed files with 8 additions and 4 deletions
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12
du_setup.sh
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@@ -780,6 +780,10 @@ configure_ssh() {
print_info "Using SSH service: $SSH_SERVICE"
log "Detected SSH service: $SSH_SERVICE"
print_info "Backing up original SSH config..."
SSHD_BACKUP_FILE="$BACKUP_DIR/sshd_config.backup_$(date +%Y%m%d_%H%M%S)"
cp /etc/ssh/sshd_config "$SSHD_BACKUP_FILE"
# Store the current active port as the previous port
PREVIOUS_SSH_PORT=$(ss -tuln | grep -E ":(22|.*$SSH_SERVICE.*)" | awk '{print $5}' | cut -d':' -f2 | head -n1 || echo "22")
CURRENT_SSH_PORT=$PREVIOUS_SSH_PORT
@@ -816,10 +820,6 @@ configure_ssh() {
return 1
fi
print_info "Backing up original SSH config..."
SSHD_BACKUP_FILE="$BACKUP_DIR/sshd_config.backup_$(date +%Y%m%d_%H%M%S)"
cp /etc/ssh/sshd_config "$SSHD_BACKUP_FILE"
# Apply port override
if [[ $ID == "ubuntu" ]] && dpkg --compare-versions "$(lsb_release -rs)" ge "24.04"; then
print_info "Updating SSH port in /etc/ssh/sshd_config for Ubuntu 24.04+..."
@@ -860,6 +860,10 @@ EOF
print_error "Aborting SSH configuration."
rm /etc/ssh/sshd_config.d/99-hardening.conf
rm /etc/issue.net
rm -rf /etc/systemd/system/ssh.socket.d
rm -rf /etc/systemd/system/ssh.service.d
rm -rf /etc/systemd/system/sshd.service.d
systemctl daemon-reload
return 1
fi
fi