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Re: Wget, Yum and network investigation



On Mon, 2006-02-27 at 20:53 +0100, antonio montagnani wrote:
> 2006/2/27, Bob Chiodini <rchiodin bellsouth net>:
> > On Mon, 2006-02-27 at 19:07 +0100, antonio montagnani wrote:
> > > 2006/2/27, Bob Chiodini <rchiodin bellsouth net>:
> >
> > >
> > > >
> > > > Maybe unrelated:  In the above network traffic, what is the port 1238
> > > > traffic to/from user89-net218219030.ayu.ne.jp?  UDP port 1238 is defined
> > > > as hacl-qs, but I cannot find what it does.  Take a look at netstat -n |
> > > > grep 1238.
> > >
> > > I will check tomorrow morning, now I am at home, so server is out of
> > > my reach :-)
> > > >
> > > > I took a quick look at the attached ethereal data.  There does not seem
> > > > to be any traffic to your DNS server or to redhat, for testfailed.  This
> > > > sure points to some kind of proxy running on the same box.  Try ethereal
> > > > on the lo interface.
> > > >
> > > yes, there is no traffic to redhat, if I use wget with no flag or yum,
> > > but traffic is existing with flagged wget
> > >
> > > > One other thought:  Try stopping mDNSResponder (service mDNSResponder
> > > > stop).
> > > >
> > > I will try it: I do not understand why mDNS should be a problem with
> > > no-flag wget (and yum), otherwise it is o.k.
> > >
> > > >
> > > >
> > > I have a doubt to have upgraded some part with some extra repository
> > > causing this weirdness...but how can I check??
> > >
> >
> > Antonio,
> >
> > If you have the time (tomorrow) and the CPU cycles:  rpm -Va to verify
> > the installed packages.  I've never done it, but rumor has it that it
> > takes a very long time.  Maybe something will pop up.
> >
> > You have probably done this, and I missed it, could you post the output
> > of ifconfig -a, netstat -rn and radvdump (just in case)?
> >
> > A little far of field, but you could try running wget (and maybe yum)
> > under strace.
> >
> Bob,
> 
> how do I run wget under strace??? sorry for the stupid question....

Antonio,

strace wget <the rest of the command line>

It will probably output a great deal of information.

Bob...


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