> For the complete documentation index, see [llms.txt](https://premium.gitbook.io/main/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://premium.gitbook.io/main/en/before-starting-work.md).

# Before starting work

- [Recommendations](https://premium.gitbook.io/main/en/before-starting-work/recommendations.md)
- [Server Selection](https://premium.gitbook.io/main/en/before-starting-work/recommendations/server-selection.md)
- [Recommendations from BestChange](https://premium.gitbook.io/main/en/before-starting-work/recommendations/recommendations-from-bestchange.md)
- [Basics of Security](https://premium.gitbook.io/main/en/before-starting-work/basics-of-security.md)
- [How to protect the site with a password](https://premium.gitbook.io/main/en/before-starting-work/basics-of-security/how-to-protect-the-site-with-a-password.md)
- [How to Protect Accounts in Payment Systems](https://premium.gitbook.io/main/en/before-starting-work/basics-of-security/how-to-protect-accounts-in-payment-systems.md)
- [How to Secure Your Server](https://premium.gitbook.io/main/en/before-starting-work/basics-of-security/how-to-secure-your-server.md)
- [Changing Passwords for Server Users](https://premium.gitbook.io/main/en/before-starting-work/basics-of-security/how-to-secure-your-server/changing-passwords-for-server-users.md)
- [How to Avoid Becoming a Victim of Fraud](https://premium.gitbook.io/main/en/before-starting-work/basics-of-security/how-to-avoid-becoming-a-victim-of-fraud.md): Due to the increasing cases of various types of fraud, we would like to draw your attention to the following information.
- [How to Secure the Exchange Control Panel](https://premium.gitbook.io/main/en/before-starting-work/basics-of-security/how-to-secure-the-exchange-control-panel.md): If you hack into the website's control panel, you can manipulate exchange rates and the details of the exchange service for manual transactions.
- [Safety Guidelines for Working with the System](https://premium.gitbook.io/main/en/before-starting-work/basics-of-security/safety-guidelines-for-working-with-the-system.md)
- [Security Guide for Cryptocurrency Exchanges](https://premium.gitbook.io/main/en/before-starting-work/basics-of-security/security-guide-for-cryptocurrency-exchanges.md)
- [Script License](https://premium.gitbook.io/main/en/before-starting-work/script-license.md)
- [License Acquisition](https://premium.gitbook.io/main/en/before-starting-work/script-license/license-acquisition.md)
- [License Renewal](https://premium.gitbook.io/main/en/before-starting-work/script-license/license-renewal.md)
- [Script Installation Instructions](https://premium.gitbook.io/main/en/before-starting-work/script-installation-instructions.md)
- [Script Update Instructions](https://premium.gitbook.io/main/en/before-starting-work/script-update-instructions.md)
- [Update from Version 2.6 to 2.7](https://premium.gitbook.io/main/en/before-starting-work/script-update-instructions/update-from-version-2.6-to-2.7.md)
- [Update from Version 2.5 to 2.6](https://premium.gitbook.io/main/en/before-starting-work/script-update-instructions/update-from-version-2.5-to-2.6.md)
- [Updating from Version 2.4 to 2.5](https://premium.gitbook.io/main/en/before-starting-work/script-update-instructions/updating-from-version-2.4-to-2.5.md)
- [Update from Version 2.3 to 2.4](https://premium.gitbook.io/main/en/before-starting-work/script-update-instructions/update-from-version-2.3-to-2.4.md)
- [Update List](https://premium.gitbook.io/main/en/before-starting-work/script-update-instructions/update-list.md)