Hint.

I did some googling and found out that people often patched the exe to add multiple lines for a single real game server in the server selection window. In reality, this functionality always existed, but I forgot to mention it in the documentation. The information was only on forums, but it has been lost. Field master_id in lin2db.dbo.server For a single server, you can add multiple rows in the table with different IPs and names. This can be used to add proxy servers to the list. The master server's id is specified in master_id. The additional servers will have an offline status if the master server has an offline status. Extended IP field format in lin2db.dbo.server Example: 192.168.1.*:192.168.1.10; 10.*:10.1.1.1,10.1.1.2; 87.213.67.1,87.213.67.2,87.213.67.3 Players with IP 192.168.1.* will be assigned IP 192.168.1.10. For players with IP 10.*, they will be assigned 10.1.1.1 and 10.1.1.2 (randomly). For all others: 87.213.67.1, 87.213.67.2, or 87.213.67.3. User accounts can have different access levels (from 0 to 9). The access level is specified in the special_gates (int) column of the account. Each IP group can have a minimum required access level (prefixes from s to s9). If the access level of the IP group is higher than the user's access level, these IPs will not be assigned to them. Example: 1.1.1.1; s:2.2.2.2; s2:3.3.3.3,3.3.3.4 Players with access level 2 and above will be assigned 3.3.3.3 or 3.3.3.4. Players with access level 1 will get 2.2.2.2. All others will get 1.1.1.1.

https://github.com/Hint-ru/hAuthD

Written somewhere around 2007 or earlier. Maybe some archaeologist will find it useful for their collection. You'll need to find Delphi 7 from 2002 to compile it https://github.com/Hint-ru/hAuthD