Re: ping by name does not work (sometimes)

[Luca Ferrari <fluca1978@infinito.it>]

On Friday 16 July 2004 18:14 jim roy's cat walking on the keyboard  wrote:

> On 2004.07.16 06:33 Luca Ferrari wrote:
> > On Thursday 15 July 2004 11:06 Benoit Desforges's cat walking on the
> > keyboard
> >
> > wrote:
> > > On Wed, 14 Jul 2004 17:51:42 +0200, Luca Ferrari
> > > <fluca1978@infinito.it>
> >
> > wrote:
> > > > Hi,
> > > > I've found this problem on a suse 8.0 machine: if I try to ping a
> > > > machine by its name the program stay locked (no messages, neither
> > > > errors). If I ping with the IP address everything works. A problem of
> > > > DNS? I thought this, but other users on the same machine can ping by
> > > > a DNS name. I'm talking, of course, of non privileged users.
> > > > Any idea?
> > > >
> > > > Luca
> > > >
> > > > --
> > > > Luca Ferrari,
> > > > fluca1978@infinito.it
> > >
> > > Are you sure that all the different users can read the /etc/host file ?
> > > I would sugest you to check if this actualy readable by everybody. but
> > > I may be wrong ...
> >
> > The file is readable by everyone
> > -rw-r--r--    1 root     root          677 2003-10-18 11:37 /etc/hosts
> > and furthermore the entry I'm trying to ping is not included in the file
> > (and there's not a NIS file sharing), thus it must be requested thru DNS.
> > Any idea?
>
> Are you sure the other users are using the same ping?
>
>
Yes, indeed.

magroup1:~ # ping cabri
PING cabri.ing.unimo.it (155.185.48.114) from 155.185.48.60 : 56(84) bytes of 
data.
64 bytes from cabri.ing.unimo.it (155.185.48.114): icmp_seq=1 ttl=128 
time=19.0 ms

--- cabri.ing.unimo.it ping statistics ---
1 packets transmitted, 1 received, 0% loss, time 0ms
rtt min/avg/max/mdev = 19.015/19.015/19.015/0.000 ms
magroup1:~ # which ping
/bin/ping

magroup1:~ # su - luca
luca@magroup1:~> which ping
/bin/ping
luca@magroup1:~> ping cabri

luca@magroup1:~>

(last line due to my ^C).

It's weird, isn't it?

Luca