通过proxychains映射-sn失败

Question

为什么我不能用nmap做下面的工作？

proxychains nmap -A -v 10.185.11.0/24

输出：

ProxyChains-3.1 (http://proxychains.sf.net)

Starting Nmap 7.60 ( https://nmap.org ) at 2018-08-07 10:12 EEST
NSE: Loaded 146 scripts for scanning.
NSE: Script Pre-scanning.
Initiating NSE at 10:12
Completed NSE at 10:12, 0.00s elapsed
Initiating NSE at 10:12
Completed NSE at 10:12, 0.00s elapsed
Initiating Ping Scan at 10:12
Scanning 256 hosts [4 ports/host]
Ping Scan Timing: About 14.84% done; ETC: 10:15 (0:02:58 remaining)
Ping Scan Timing: About 29.35% done; ETC: 10:15 (0:02:27 remaining)
Ping Scan Timing: About 43.99% done; ETC: 10:15 (0:01:56 remaining)
Ping Scan Timing: About 58.64% done; ETC: 10:15 (0:01:25 remaining)
Ping Scan Timing: About 73.29% done; ETC: 10:15 (0:00:55 remaining)
Completed Ping Scan at 10:15, 206.13s elapsed (256 total hosts)
Nmap scan report for 10.185.11.0 [host down]
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此外，我可以使用来自metasploit的tcp端口扫描器，也可以找到打开的端口，但是这些端口不能工作。

Answer 1

似乎您不能通过短袜发送ICMP包。但是，您可以指示Nmap执行TCP来执行同样的操作！

“TCP ping”可以描述为设置了ACK标志的TCP数据包，其目的地是目标主机(S)的端口80。来自可访问主机的所需响应要么是设置了RST标志的TCP数据包，要么是ICMP回送答复，指示主机是活动的。

来自：https://nmap.org/docs/discovery.pdf

Answer 2

如果像我想的那样，proxychains被配置为使用Tor网络，这将阻止ICMP (ping)请求的使用。

例如，如果您试图执行以下命令：

proxychains ping 8.8.8.8

这将返回许多错误，因为Tor不允许ICMP。如果要从Tor网络执行扫描，则需要排除带有标志-Pn的ping测试。

这个标志会减慢你的扫描速度，但至少，它会起作用。