List of good troubleshooting commands? - Page 4

nharel · 01-01-2011, 04:37 PM

Sorry to ask a stupid question, but how/where do you run these commands?

hlarsen · 01-01-2011, 04:57 PM

you can run them from the terminal or through SSH.

coltect · 10-21-2011, 05:49 AM

iftop -pPnNB -i eth0
or eth1 etc
You can use filters like this
iftop -pPnNB -i eth1 -f 'port 25' to watch email coming in before it gets processed.
or -f 'host 10.20.30.40' or -f 'host hostname.to.watch'

Very similar to jnettop, but I like iftop, and it works on many firewall/utm distros.

sky-knight · 10-21-2011, 10:26 AM

Yeah both tools are very different. I like jnettop because I can switch interfaces without restarting the tool. But iftop's interface is easier to read certain things and see the relative consumption of individual network sessions.

Both are very powerful to have around. Neither have I needed since the session viewer was added.

10-21-2011, 10:26 AM	#34 (permalink)
sky-knight Join Date: Apr 2008 Location: Phoenix, AZ URLs submitted: 8 Posts: 15,457	Yeah both tools are very different. I like jnettop because I can switch interfaces without restarting the tool. But iftop's interface is easier to read certain things and see the relative consumption of individual network sessions. Both are very powerful to have around. Neither have I needed since the session viewer was added. __________________ Rob Sandling, BS:SWE, MCP Intouch Technology Phone: 480-272-9889 rob@intouchtechllc.com UntangleAppliances.com Phone: 866-794-8879

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01-01-2011, 04:37 PM	#31 (permalink)
nharel Newbie Join Date: Jun 2009 Posts: 4	Sorry to ask a stupid question, but how/where do you run these commands?

01-01-2011, 04:57 PM	#32 (permalink)
hlarsen Join Date: Jul 2010 Location: sfba URLs submitted: 1 Posts: 1,138	you can run them from the terminal or through SSH.

10-21-2011, 05:49 AM	#33 (permalink)
coltect Newbie Join Date: May 2008 Posts: 10	iftop -pPnNB -i eth0 or eth1 etc You can use filters like this iftop -pPnNB -i eth1 -f 'port 25' to watch email coming in before it gets processed. or -f 'host 10.20.30.40' or -f 'host hostname.to.watch' Very similar to jnettop, but I like iftop, and it works on many firewall/utm distros.