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--- ubuntu:network:check_promiscuous [2019/11/30 18:53] – created peter
+++ ubuntu:network:check_promiscuous [2021/01/08 12:19] (current) – removed peter
@@ Line 1: / Line 1: @@
-====== Ubuntu - Network - Check Promiscuous ======
-Promiscuous mode allows a network device to intercept and read each network packet that arrives in its entirety.  This mode of operation is sometimes given to a network snoop server that captures and saves all packets for analysis (for example, for monitoring network usage).
-Promiscuous mode can be used in a malicious way to sniff on a network.
-<code bash>
-#!/bin/bash
-#
-# Scans ethernet cards if they are in Promisuous mode.
-#
-# every half hour.
-while true
-do
-  for i in eth0 eth1
-  do
-    if ifconfig $i | grep PROMISC > /dev/null then
-    (echo $i Promisc;fpromisc) 2>&1 | Mail \
-    -s PROMCUOUS sysadmin sysadmin@sharewiz.net
-    fi
-  done
-  sleep 1800
-done
-</code>