一般是先建一个评估版的，试用license一个月到期的那种。到期后如果不想破解，就要去购买序列号。
不过有时候不小心手滑重装了虚拟机，或者哪里出错了导致server id不见了，那就比较麻烦了。但在Atlassian的账号里，有可能只能看到“Name”， 而不是评估版的Server ID，这就比较麻烦了。所以要把Server ID记下来放到安全的地方，免得还要去骚扰Atlassian的技术支持。
不过Atlassian的技术支持还是挺块的，当天就把我账号里的Server ID发回给我了，效率很高。
闲话少说，改Server ID其实挺简单的，要改两个地方。
1、配置文件：/var/atlassian/application-data/confluence/confluence.cfg.xml 这个是缺省位置，自定义的就是confluence的目录了。
找到这一句，改之。
<property name="confluence.setup.server.id">XXXX-XXXX-XXXX-XXXX</property>
2、改数据库。
[root@server]# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 2749616
Server version: 5.7.26 MySQL Community Server (GPL)
Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| confluence |
| mysql |
| performance_schema |
| sys |
+--------------------+
5 rows in set (0.05 sec)
mysql> use confluence;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> select * from BANDANA where bandanakey = 'confluence.server.id';
+-----------+----------------+----------------------+--------------------------------------+
| BANDANAID | BANDANACONTEXT | BANDANAKEY | BANDANAVALUE |
+-----------+----------------+----------------------+--------------------------------------+
| 1 | _GLOBAL | confluence.server.id | <string>XXXX-XXXX-XXXX-XXXX</string> |
+-----------+----------------+----------------------+--------------------------------------+
1 row in set (0.00 sec)
mysql> update BANDANA set bandanavalue = '<string>XXXX-YYYY-XXXX-YYYY</string>' where bandanakey = 'confluence.server.id';
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> exit
Bye
[root@server101 local]#
改完重启服务，或者重启服务器，再进入Confluence 看看授权许可那里，如果没有授权码的话就把你自己那个授权码输进去就好了。
