我在哪里可以找到用于模拟超时和错误代码的测试http服务器

I am thinking that this would be an Apache server with some custom pages, or possibly a java application. Used for browser or http client testing, it should give me a variety of 500 errors when a specific page is requested. Give me a page that responds in 5 seconds, 10, 30 or whatever. Give me a page where the first byte does not come back for 30 seconds. Give me a page where I get a few bytes per second.I am thinking that this would be an Apache serv