Yes, dig and nslookup work just fine on that box for both local and remote hosts. I restarted ntop with the -o set about 10 minutes ago and nothing has resolved yet but we'll see what happens.
I had been using 5 minute old snmp cacti graphs so even if this doesn't resolve the dns names I'm still streets ahead of what I used to deal with. Thanks, Paul On Thu, Apr 14, 2011 at 3:04 PM, Mark Gibbons <[email protected]> wrote: > My reverse dns is also broken - fails to resolve on fedora 6. > > nslookup on the local machine works fine but ntop does not. It used to > work about 2 years ago but I have had this issue a long time now and have > learnt to live with it. > > ------------------------------ > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Gary Gatten > *Sent:* 14 April 2011 20:27 > > *To:* '[email protected]' > *Subject:* Re: [Ntop] Custom Host Name > > It should do lookups unless you disable them with “–n”, or unless your > local resolver or DNS is broken. Can you manually resolve stuff on that > box? > > > > Generally speaking –o is required. It depends on your environment, but if > you have routers and stuff ntop will associate all your hosts with the MAC > address of the router – because it looks at layer 2 instead of later 3. > That COULD be related to your resolution stuff, not sure…. > > > > G > > > > > ------------------------------ > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Paul Smith > *Sent:* Thursday, April 14, 2011 2:23 PM > *To:* [email protected] > *Subject:* Re: [Ntop] Custom Host Name > > > > I don't. Should I? I'm using ntop on an ubuntu-server 10.10 with two NICs > and a port mirrored from the switch port that goes out to the firewall. > > I was hoping it would associate with the MAC to avoid situations where DHCP > leases have ended and the IP addresses recycled. > > Is there a reason ntop doesn't just do an nslookup at least for local IP > addresses? > > On Thu, Apr 14, 2011 at 2:11 PM, Gary Gatten <[email protected]> wrote: > > Typically the IP address. > > Do you have "-o [--no-mac] in your startup args? > > > *From*: Paul Smith [mailto:[email protected]] > *Sent*: Thursday, April 14, 2011 02:03 PM > *To*: [email protected] <[email protected]> > *Subject*: [Ntop] Custom Host Name > > > I've had ntop running just inside our firewall for a few days now but it > doesn't seem to be resolving any dns names. If I go through and add a few > Custom Host Names will those names be associated with the hosts' IP address > or the MAC address? > > > "This email is intended to be reviewed by only the intended recipient and > may contain information that is privileged and/or confidential. If you are > not the intended recipient, you are hereby notified that any review, use, > dissemination, disclosure or copying of this email and its attachments, if > any, is strictly prohibited. If you have received this email in error, > please immediately notify the sender by return email and delete this email > from your system." > -- > This message has been scanned for viruses and > dangerous content by *MailScanner* <http://www.mailscanner.info/>, and is > believed to be clean. > > _______________________________________________ > Ntop mailing list > [email protected] > http://listgateway.unipi.it/mailman/listinfo/ntop > >
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