KalOnline · Maintenance

Back up a KalOnline server so experiments are reversible

A folder copy is not a complete backup. You need recoverable databases, configuration files, client assets and a record of which versions belong together.

Direct answer: A folder copy is not a complete backup. You need recoverable databases, configuration files, client assets and a record of which versions belong together.

Use four backup layers

LayerWhat to saveWhen
Original archiveUntouched package and source notesBefore extraction
VM snapshotOS, runtimes, SQL installation and toolsAt clean milestones
SQL backupsFull backup of every package databaseBefore scripts or editors
Config/client copyExact working files and hashesBefore each release or network change

Name backups so they remain useful

Include package, component, state and sequence in the filename—for example, lab-auth-clean-01.bak or client-before-launcher-test.zip. Avoid calling every backup “final.” Keep a small text changelog beside them.

Test recovery, not just creation

Restore a database backup to a temporary name and verify that SQL Server can read it. Clone the VM snapshot and start it on an isolated network. A backup that has never been restored is only a hope.

Protect credentials

Configuration archives may contain database passwords and private addresses. Do not publish them with screenshots or share them in public download packs. Rotate credentials after accidental disclosure.

Recovery drills for real confidence

Restore to a different name

Testing a backup by overwriting the working database defeats the purpose. Restore to a temporary database name, verify its objects and then remove it. This confirms the backup is readable without risking the live lab.

Export configuration evidence

Keep screenshots or notes of SQL instance settings, authentication mode, service accounts, ODBC DSNs and firewall rules. Those settings are not all contained in the server folder and are easily forgotten during a rebuild.

Use off-VM copies

A snapshot stored only on the same failing disk is not enough. Keep at least one copy of databases and clean packages outside the VM. For important work, use a second physical device or reputable backup destination.

Practice the return to baseline

After testing an editor, deliberately restore the clean database and file copy. A five-minute recovery drill proves that experimentation is safe and exposes missing steps while the system is still healthy.

Package-specific values vary. Verify names, ports, database schemas and permissions against the files you are legally authorized to use. ZHowTo does not provide proprietary server files, anti-cheat bypasses or instructions for unauthorized access. Corrections: bugridez@gmail.com.