> -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > Behalf Of Donald Sewell > Sent: Monday, June 21, 2004 3:03 PM > To: [EMAIL PROTECTED] > Subject: [Ntop-dev] Ntop > > > Hi, > > I run ntop on a p800 with 256M and a 80G HD using RedHat 9.0.
May want to think about adding memory, depending upon the # of hosts you'll be tracking. > I start ntop with the command: > Ntop -u root -w 8080 -I eth1 -m 192.68.30.0 -n -o -z -b -r 30 > > After about 30 minutes my system bogs down and I get the message in > /var/log/messages > > Kernel: application bug: ntop[2403] has SIGCHLD set to SIG-IGN but > calls wait(). That's a warning - RedHat made some changes in 9.0 for NPTL, but all of the pieces didn't get fixed - read the man page (IIRC it's man signal) > Ntop[2495]: ** ERROR ** http generation failed, alarm() tripped. > Please report this to the ntop-dev list. > > > Ntop[2503]: ** ERROR ** http generation failed, alarm() tripped. > Please report this to the ntop-dev list. > > > Ntop[2502]: ** ERROR ** http generation failed, alarm() tripped. > Please report this to the ntop-dev list. Those happen if it takes too long to prepare the page - 15s - which can happen if you have 1000s and 1000s of hosts. > When I first ran ntop I had dns lookups on and got an error message that > a limit had been reached 4096 and no more dns lookups would be > performed. Normal - when ntop 1st sees a host it queues the IPs for resolution - that queue has 4K entries and can fill up in the initial burst of traffic (when ntop sees most of your hosts for the very first time). > I have eth1 connected to a cisco 3550 switch port that is mirroring our > uplink. > > I am impressed with the amount of information that ntop provides. > Thanks in advance for your help. > > Don Sewell > > PS - If there is somewhere I was supposed to read before making this > request please point the way so I can stumble in the right direction :) Read docs/FAQ... > > -----Burton _______________________________________________ Ntop-dev mailing list [EMAIL PROTECTED] http://listgateway.unipi.it/mailman/listinfo/ntop-dev
