Ruby-on-rails Rails：获取客户端 IP 地址
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Rails: Get Client IP address
提问by ma11hew28
In Rails, what's the best way to get the ip address of the client connecting to the server?
在 Rails 中，获取连接到服务器的客户端的 IP 地址的最佳方法是什么？
Here are two ways I've found:
这是我找到的两种方法：
request.remote_ip
request.env['HTTP_X_REAL_IP']
回答by loosecannon
I would just use the request.remote_ipthat's simple and it works. Any reason you need another method?
我只会使用request.remote_ip那很简单而且很有效的方法。你有什么理由需要另一种方法吗？
See: Get real IP address in local Rails development environmentfor some other things you can do with client server ip's.
请参阅：在本地 Rails 开发环境中获取真实 IP 地址，了解您可以使用客户端服务器 ip 执行的其他一些操作。
回答by tadman
request.remote_ipis an interpretation of all the available IP address information and it will make a best-guess. If you access the variables directly you assume responsibility for testing them in the correct precedence order. Proxies introduce a number of headers that create environment variables with different names.
request.remote_ip是对所有可用 IP 地址信息的解释，它将做出最佳猜测。如果您直接访问变量，则您承担以正确的优先顺序测试它们的责任。代理引入了许多创建具有不同名称的环境变量的头文件。
回答by puneet18
Get client ip using command:
使用命令获取客户端IP：
request.remote_ip
回答by alikk
I found request.env['HTTP_X_FORWARDED_FOR']very useful too in cases when request.remote_ipreturns 127.0.0.1
我发现request.env['HTTP_X_FORWARDED_FOR']在request.remote_ip返回的情况下也非常有用127.0.0.1
回答by NorseGaud
For anyone interested and using a newer rails and the Devise gem: Devise's "trackable" option includes a column for current/last_sign_in_ip in the users table.
对于任何有兴趣并使用更新的 rails 和 Devise gem 的人：Devise 的“可跟踪”选项包括用户表中 current/last_sign_in_ip 的列。
