How to monitor Unix network

Posted on 2005-03-02
Medium Priority
Last Modified: 2013-12-23
Hi All

I have a HP-UX cluster ( os 11i ) when I load up gpm to monitor my server. Some times I see the network usage is very high. Is there any way that I can see who is the heavy user is and from what pc they are connection from and what the prosses is.

Many thanks for the help

Question by:tazzexperts
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
LVL 21

Accepted Solution

tfewster earned 200 total points
ID: 13444120
Assuming you're not running a web server, I guess the most obvious things to look at first are NFS usage (nfsstat) and FTP (ps -ef | grep ftp).  X displays & java will also generate a lot of network traffic. So you may be able to identify the culprits from the processes that are being run.

Network monitoring is more complex; You can get some tools from  the HP porting centre - http://hpux.connect.org.uk/ (or your nearest mirror site)
tcpdump-3.8.3 - A tool for network monitoring and data acquisition, and  
tcptrace-6.6.7      A TCP connection log analysis tool; Tcptrace takes a tcpdump file specified on the command line and produces a summary of the connections. It can create output suitable for throughput graphs, rtt sample graphs, time sequence graphs and more. It also has extensive connection filtering options.
LVL 21

Expert Comment

ID: 13463664
Thanks for the points, Tazz - But did you manage to trace the problem?

Featured Post

Video: Liquid Web Managed WordPress Comparisons

If you run run a WordPress, you understand the potential headaches you may face when updating your plugins and themes. Do you choose to update on the fly and risk taking down your site; or do you set up a staging, keep it in sync with your live site and use that to test updates?

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In this article we will learn how to backup a VMware farm using Nakivo Backup & Replication. In this tutorial we will install the software on a Windows 2012 R2 Server.
This program is used to assist in finding and resolving common problems with wireless connections.
If you're a developer or IT admin, you’re probably tasked with managing multiple websites, servers, applications, and levels of security on a daily basis. While this can be extremely time consuming, it can also be frustrating when systems aren't wor…
In this video we outline the Physical Segments view of NetCrunch network monitor. By following this brief how-to video, you will be able to learn how NetCrunch visualizes your network, how granular is the information collected, as well as where to f…
Suggested Courses

777 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question