--- a/net.rst	Mon Sep 06 23:08:24 2010 +0300
+++ b/net.rst	Thu Sep 09 09:36:39 2010 +0300
@@ -29,7 +29,7 @@
 
   $ nbtstat -r
 
-* List of open port.
+* List of open ports.
 
 ** Windows.
 
@@ -38,6 +38,18 @@
   cmd> netstat -a -n  # TCP and UDP
   cmd> netstat -s     # show IP, ICMP, TCP, and UDP statistics.
 
+** Linux.
+
+  $ netstat
+
+* Which processes open port?
+
+** Windows
+
+  cmd> netstat -o     # show PID
+  cmd> netstat -b     # show also cmd name
+  cmd> netstat -b -v  # show all modules (.exe and .dll) with full path
+
 * How disable IPv6?
 
 ** Debian kernel 2.6/Ubuntu ("official" method)/Fedora Core.