步骤，给nginx.conf 配置了 server_name www.testtravel.com;
报错 nginx: [emerg] could not build server_names_hash, you should increase server_names_hash_bucket_size: 32

解决办法在http中添加一行：
server_names_hash_bucket_size 64;
如果64还不够，那么就按32的倍数往上加。

示例：
解决nginx：nginx: [emerg] could not build server_names_hash, you should increase server_names_hash_bucket_size: 32_nginx