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Re: ifup eth0 -- but no connection! argh...



Em Sáb, 2002-02-16 às 04:49, will trillich escreveu:
> On Fri, Feb 08, 2002 at 08:02:29PM +0100, martin f krafft wrote:
> > also sprach will trillich <will@serensoft.com>:
> > > 3c509 won't connect -- how do i poke and prod to
> > > find out what's needed?
> 
> > have you configured routing correctly? is there a packet filter? do
> > you have a default gateway? dns servers?
> 
> in order,
> 
> 1) /etc/network/interfaces looks a lot like this:
> 
> 	# The loopback interface
> 	iface lo inet loopback
> 
> 	# small sub-net (mask 248)
> 	iface eth0 inet static
> 		address   192.168.7.84
> 		netmask   255.255.255.248
> 		network   192.168.7.80
> 		broadcast 192.168.7.87
> 		gateway   192.168.7.81
> 

missing the 
netstat -rn
output


> 2) i've installed (apt-get) "ipmasq", plain vanilla out of the
> box (no tinkering with potato's ipchains other than that) and
> 

If your network was not up and functionnal before installing ipmasq,
it is probably misconfigured. Flush everything and see if it works after
that.

iptables -F
iptables -P INPUT ACCEPT
iptables -P OUTPUT ACCEPT

Michel.

> 3) i've installed the 'task-dns' package, but as straight ip
> addressing gets lost, i don't expect my dns to work properly
> either.
> 
> on the other hand, my /etc/resolv.conf looks like:
> 	nameserver 127.0.0.1
> 	nameserver 63.64.9.19
> 	nameserver 63.64.9.11
> 
> but the externals won't be reached until a ping can bounce,
> right?
> 
> > we need more info.
> 
> i thought that might be the case. i don't know enough to know
> what direction to look in, so i didn't want to waste bandwidth
> with random extranea. :)
> 
> > like the output of ifconfig, route.
> 
> dang. it's at work, and not connected to anything (hence the
> trouble) so cut and paste ain't so easy at the moment. i'll do
> that next workday if i get a chance edgewise.
> 
> > can you ping the NIC's own IP?
> 
> yes. 0% packet loss, at 0.1-0.2 ms each. <newbie>curious -- it
> sounds like information can be gleaned from that, and i'm
> curious: how?</newbie>
> 
> -- 
> DEBIAN NEWBIE TIP #69 from Will Trillich <will@serensoft.com>
> :
> Preparing to UPGRADE POSTGRESQL? If you have a second machine on
> your network that you can tinker with, do your upgrade there,
> first: once tested, you can just have your current applications
> link to the remote database through the network:
> 	psql -h 192.168.2.17 myDB
> or in perl,
> 	$dbh = DBI->connect('dbi:Pg:dbname=myDB;host=192.168.2.17');
> (You may need to tweak your 'host-based access' settings in
> /etc/postgresql/pg_hba.conf, first.) Once you're satisfied that
> all is well, upgrade your main server. No down time!
>   See "man psql" and "man DBD::Pg" for details.
> 
> Also see http://newbieDoc.sourceForge.net/ ...
> 
> 
> -- 
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> 




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