nmap -sn 192.168.1.1-255

nmap -sn 192.168.1.1-255是一个网络扫描命令，用于发现给定IP地址范围内的活动主机。它将发送ICMP Echo请求（ping）到指定的IP地址，并根据响应来确定主机是否在线。这个命令将扫描从192.168.1.1到192.168.1.255的IP地址范围内的主机，并显示它们的状态（在线或离线）。

请注意，执行此命令需要具有适当的权限，并且在扫描网络时要遵守法律和道德规范。确保您有授权扫描该网络的权限，并且您的行为符合相关规定。

相关问题

nmap禁止pingnmap -po192.168.1.1

nmap是一款常用的网络扫描工具，可以用于探测目标主机的开放端口和服务信息。在nmap中，可以使用不同的选项来进行扫描操作。

"-p"选项用于指定要扫描的端口号，而"-o"选项用于指定输出格式。在你提供的命令中，"-po"表示只扫描目标主机的开放端口，并以正常输出格式显示结果。

关于禁止ping的操作，nmap提供了"-Pn"选项。使用该选项后，nmap将不会发送ICMP Echo请求（即ping请求），而直接进行端口扫描。所以，如果你想禁止ping目标主机并进行端口扫描，可以使用以下命令：

nmap -p 192.168.1.1

这样，nmap将禁止ping目标主机，并对192.168.1.1进行端口扫描。

nmap -v scanme.nmap.org 扫描与 nmap -vv scanme.nmap.org 扫描的区别是什么

根据提供的引用[1]，nmap是一款网络探测和安全审计工具。使用-v选项可以增加扫描的详细程度，使用-vv选项可以进一步增加详细程度。因此，nmap -v scanme.nmap.org扫描的详细程度比nmap -vv scanme.nmap.org扫描的详细程度要少。

下面是两个命令的示例：

1. nmap -v scanme.nmap.org扫描的输出示例：

Starting Nmap 7.80 ( https://nmap.org ) at 2021-08-17 09:30 PDT
Initiating Ping Scan at 09:30
Scanning scanme.nmap.org (45.33.32.156) [2 ports]
Completed Ping Scan at 09:30, 0.00s elapsed (1 total hosts)
Initiating Parallel DNS resolution of 1 host. at 09:30
Completed Parallel DNS resolution of 1 host. at 09:30, 0.02s elapsed
Initiating Connect Scan at 09:30
Scanning scanme.nmap.org (45.33.32.156) [1000 ports]
Discovered open port 80/tcp on 45.33.32.156
Discovered open port 22/tcp on 45.33.32.156
Completed Connect Scan at 09:30, 0.11s elapsed (1000 total ports)
Nmap scan report for scanme.nmap.org (45.33.32.156)
Host is up (0.11s latency).
Other addresses for scanme.nmap.org (not scanned): 2600:3c03::f03c:91ff:fe18:bb2f
Not shown: 998 filtered ports
PORT   STATE SERVICE
22/tcp open  ssh
80/tcp open  http

Read data files from: /usr/bin/../share/nmap
Nmap done: 1 IP address (1 host up) scanned in 0.18 seconds

2. nmap -vv scanme.nmap.org扫描的输出示例：

Starting Nmap 7.80 ( https://nmap.org ) at 2021-08-17 09:31 PDT
Initiating Ping Scan at 09:31
Scanning scanme.nmap.org (45.33.32.156) [2 ports]
Packet capture filter (device eth0): icmp and ((ip[20:2] - ip[16:2]) - ((ip[0]&0xf)<<2)) != 0
Completed Ping Scan at 09:31, 0.00s elapsed (1 total hosts)
Initiating Parallel DNS resolution of 1 host. at 09:31
Completed Parallel DNS resolution of 1 host. at 09:31, 0.02s elapsed
Initiating Connect Scan at 09:31
Scanning scanme.nmap.org (45.33.32.156) [1000 ports]
Discovered open port 80/tcp on 45.33.32.156
Discovered open port 22/tcp on 45.33.32.156
Completed Connect Scan at 09:31, 0.11s elapsed (1000 total ports)
Nmap scan report for scanme.nmap.org (45.33.32.156)
Host is up, received syn-ack (0.11s latency).
Other addresses for scanme.nmap.org (not scanned): 2600:3c03::f03c:91ff:fe18:bb2f
Not shown: 998 filtered ports
Reason: 998 no-responses and 2 host-prohibited
PORT   STATE SERVICE REASON
22/tcp open  ssh     syn-ack ttl 56
80/tcp open  http    syn-ack ttl 56

Read data files from: /usr/bin/../share/nmap
Nmap done: 1 IP address (1 host up) scanned in 0.18 seconds