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@hjbotha
Last active November 24, 2025 13:59
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Free ports 80 and 443 on Synology NAS
#! /bin/bash
# NEWLY ADDED BACKUP FUNCTIONALITY IS NOT FULLY TESTED YET, USE WITH CARE, ESPECIALLY DELETION
# Developed for DSM 6 - 7.0.1. Not tested on other versions.
# Steps to install
# Save this script in one of your shares
# Edit it according to your requirements
# Backup /usr/syno/share/nginx/ as follows:
# # cd /usr/syno/share/
# # tar cvf ~/nginx.tar nginx
# Run this script as root
# Reboot and ensure everything is still working
# If not, restore the backup and post a comment on this script's gist page
# If it did, schedule it to run as root at boot
# through Control Panel -> Task Scheduler
HTTP_PORT=81
HTTPS_PORT=444
BACKUP_FILES=true # change to false to disable backups
BACKUP_DIR=/volume1/apps/free_ports/backup
DELETE_OLD_BACKUPS=false # change to true to automatically delete old backups.
KEEP_BACKUP_DAYS=30
DATE=$(date +%Y-%m-%d-%H-%M-%S)
CURRENT_BACKUP_DIR="$BACKUP_DIR/$DATE"
if [ "$BACKUP_FILES" == "true" ]; then
mkdir -p "$CURRENT_BACKUP_DIR"
cp /usr/syno/share/nginx/*.mustache "$CURRENT_BACKUP_DIR"
fi
if [ "$DELETE_OLD_BACKUPS" == "true" ]; then
find "$BACKUP_DIR/" -type d -mtime +$KEEP_BACKUP_DAYS -exec rm -r {} \;
fi
sed -i "s/^\([ \t]\+listen[ \t]\+[]:[]*\)80\([^0-9]\)/\1$HTTP_PORT\2/" /usr/syno/share/nginx/*.mustache
sed -i "s/^\([ \t]\+listen[ \t]\+[]:[]*\)443\([^0-9]\)/\1$HTTPS_PORT\2/" /usr/syno/share/nginx/*.mustache
if which synoservicecfg; then
synoservicecfg --restart nginx
else
synosystemctl restart nginx
fi
echo "Made these changes:"
diff /usr/syno/share/nginx/ $CURRENT_BACKUP_DIR 2>&1 | tee $CURRENT_BACKUP_DIR/changes.log
@mjstark
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mjstark commented Nov 20, 2025

Incremental versioning shouldn't matter.
7.x.
I'm certain the paths for nginx are the same for all Incremental versions. Ports 80/443 have been used for DSM 7.0 ...and above by nginx.

It surprises me that the script works for other Incremental versions of v7,from what I'm seeing ...but not others. The script should either work for v7 or not. That being said...the script does work for freeing up port 80 ....just not port 443. There has to be another file that contains port 443 that the script is missing. Any suggestions would be appreciated.

Thanks

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