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тАО07-26-2004 09:38 AM
тАО07-26-2004 09:38 AM
trouble shooting new server connections
I'm fairly new at troubleshooting network issues and we've just put new servers online. I want to be proactive and have some idea of what to look for and where to look if we start having network issues. Ideas of the best approach to take are welcomed. Thanks
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тАО07-26-2004 09:43 AM
тАО07-26-2004 09:43 AM
Re: trouble shooting new server connections
netstat commands (see man pages)
ifconfig
lanscan
ndd
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тАО07-26-2004 09:58 AM
тАО07-26-2004 09:58 AM
Re: trouble shooting new server connections
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тАО07-26-2004 10:13 AM
тАО07-26-2004 10:13 AM
Re: trouble shooting new server connections
is a good one to try while it is working so you will know if it works at all and what to expect.
nslookup
is useful for troubleshooting DNS problems.
run traceroute to your most common clients and record the paths so you will know if something changes.
Make sure your routers respond to pings from your server or the server may decide that the gateway is down and refuse to use the router. (Can be turned off with ndd.)
Rob
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тАО07-26-2004 10:21 AM
тАО07-26-2004 10:21 AM
Re: trouble shooting new server connections
My friend and colleague Pat Kilfoyle has given several excellent presentations on network troubleshooting and performance issues at previous HP World and InterWorks conferences. I just found one of his presentations was publicly available at the following site:
ftp://198.151.251.239/pub/conference/hpworld2003/proceedings/1496.pdf
Hope you find this useful.
Regards,
Dave
[Any personal opinions expressed are mine, and not official statements on behalf of Hewlett Packard Enterprise]
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тАО07-26-2004 12:08 PM
тАО07-26-2004 12:08 PM
Re: trouble shooting new server connections
I have assigned points to 0 of 47 responses to my questions
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тАО07-26-2004 07:39 PM
тАО07-26-2004 07:39 PM
Re: trouble shooting new server connections
lsof (need to be installed)
Good if you want to see processes within network.
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тАО07-27-2004 03:11 PM
тАО07-27-2004 03:11 PM
Re: trouble shooting new server connections
ftp://ftp.cup.hp.com/dist/networking/briefs/annotated_netstat.txt