Complete Migration Guide For Moving WHMCS To A New Server

Locate and disable all WHMCS-related cron jobs:

# List all cron jobs
crontab -l

# Edit cron jobs
crontab -e

# Comment out WHMCS cron entries by adding # at the start of each line
# */5 * * * * /opt/cpanel/ea-php81/root/usr/bin/php -q /home/user/public_html/whmcs/crons/cron.php

# Using mysqldump (recommended method)
mysqldump -u username -p whmcs_db > whmcs_backup.sql

# Compress the backup
gzip whmcs_backup.sql

# Create a compressed backup of WHMCS files
tar -czf whmcs_files.tar.gz /path/to/whmcs

# Using rsync (recommended for large installations)
rsync -avz --progress /path/to/whmcs user@newserver:/path/to/destination

# Or using scp
scp -r whmcs_files.tar.gz user@newserver:/path/to/destination

# Create new database
mysql -u root -p
CREATE DATABASE new_whmcs_db;
GRANT ALL PRIVILEGES ON new_whmcs_db.* TO 'whmcs_user'@'localhost';
FLUSH PRIVILEGES;
exit;

# Restore database
gunzip < whmcs_backup.sql.gz | mysql -u username -p new_whmcs_db

# Secure copy of configuration file
cp configuration.php configuration.php.bak

# Edit configuration file
nano configuration.php

# Update these lines:
$db_host = "localhost";
$db_username = "new_username";
$db_password = "new_password";
$db_name = "new_whmcs_db";

# Set correct permissions
find /path/to/whmcs -type f -exec chmod 644 {} \;
find /path/to/whmcs -type d -exec chmod 755 {} \;
chmod 777 /path/to/whmcs/templates_c/
chmod 777 /path/to/whmcs/downloads/

# Add WHMCS cron jobs to new server
*/5 * * * * /opt/cpanel/ea-php81/root/usr/bin/php -q /path/to/whmcs/crons/cron.php
*/5 * * * * /opt/cpanel/ea-php81/root/usr/bin/php -q /path/to/whmcs/crons/pop.php