From 8afd5f9445ad0688d6ac63f708562e0ac4df1abc Mon Sep 17 00:00:00 2001
From: Ray Voice <33094591+Ray6464@users.noreply.github.com>
Date: Wed, 14 Oct 2020 18:46:17 +0500
Subject: [PATCH] nmap: add -O example (#4400)

---
 pages/common/nmap.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pages/common/nmap.md b/pages/common/nmap.md
index 61f1c7e6cb..4e27d66e2a 100644
--- a/pages/common/nmap.md
+++ b/pages/common/nmap.md
@@ -4,6 +4,10 @@
 > Some features only activate when Nmap is run with privileges.
 > More information: <https://nmap.org>.
 
+- Check if an IP address is up, and guess the remote host's operating system:
+
+`nmap -O {{ip_or_hostname}}`
+
 - Try to determine whether the specified hosts are up and what are their names:
 
 `nmap -sn {{ip_or_hostname}} {{optional_another_address}}`