[NTLUG:Discuss] no one has such problem? was: Is there a such 'low power stan

Fri Jan 18 15:11:35 CST 2002

what happpen to my box is that If I don't use my internal network for a 
while,
then nobody from outside of the word can conncet to my server, even ping to 
the box, the server is kind of 'dead'.
but if I physically go back to 'use' the box (any kind of use, edit a file,
telnet to some where...), the server become alive, all the servers works 
fine.

I thought the NIC is bad, the something wrong on firewall rules,
or the kernel is not stable (just upgrated the kernel to 2.4.14).
after check all of then:
replace new NIC, recompiled kernel, disable APM on BIOS, no run X winow, no 
dmps package installed. the problem still exist. (all servers are no 
working)

the problem seems solved: (I don't think this is the right soluation)
I used to blocke some (4) ips 24.242.8.? (and others, don't those with me 
now, At&t's noise signal? attack port 69) and now I un-block these ips the 
problem is no longer exist. all my server works fine.  but my log file will 
filled with a lot of repeat junk messages. my hard drive will very busy, it 
write these repeated junk message every couple of minutes.

>From: Jared Cook <jaredmcook at yahoo.com>
>Reply-To: discuss at ntlug.org
>To: discuss at ntlug.org
>Subject: Re: [NTLUG:Discuss] no one has such problem?  was:  Is there a 
>such 'low power stan
>Date: Thu, 17 Jan 2002 20:09:33 -0800 (PST)
>
>m m,
>
>If your whole machine isn't going into standby, your
>nic won't on its own.  I just don't think that's what
>your problem is.  Of course, I don't know what your
>problem is.
>
>jared
>
>--- m m <llliiilll at hotmail.com> wrote:
> > how about I install power management package, and
> > set never idle?
> >
> >
> > >From: "m m" <llliiilll at hotmail.com>
> > >Reply-To: discuss at ntlug.org
> > >To: jaredmcook at yahoo.com, discuss at ntlug.org
> > >Subject: Re: [NTLUG:Discuss] Is there a such 'low
> > power standby'
> > >phenomenons?
> > >Date: Tue, 15 Jan 2002 14:33:24
> > >
> > >still have the problem, and something interesting
> > is I cannot get the
> > >webpage from my server but my friend can (at
> > different location/state)!
> > >please below, I have more detail information.
> > >
> > >help!?
> > >
> > >Thanks!
> > >
> > >>From: Jared Cook <jaredmcook at yahoo.com>
> > >> > >From: Mark Bickel <eusmb at exu.ericsson.se>
> > >
> > >> > > > the server is kind of 'dead'.
> > >> > > > but if I physically go back to 'use' the
> > box
> > >> >
> > >> > I double checked:
> > >> > There is no APM settings on the BIOS (disabled)
> > >> > no amp modules was compiled in the kernel.
> > >> > ampd is not rinning.
> > >> >
> > >> > still has this problem.
> > >> >
> > >> >
> > >>I'm new here, but I'll be going to my first NTLUG
> > >>meeting soon.
> > >>
> > >>Here's one from out in left field.  I had problems
> > >>with ARP while using an LVS/IPVS cluster.  There
> > are a
> > >>lot of issues with virtual IPs and ARP addresses
> > that
> > >>I won't get into here, but the bottom line is I
> > had to
> > >>ping stuff in order to broadcast my ARP address
> > >>because the router would add another MAC to it's
> > table
> > >>after a while.  {This might sound really strange,
> > but
> > >>in LVS, you have the members with the same virtual
> > IP
> > >>as the director, and if they are also responding
> > to
> > >>ARP requests your director is left out in the
> > cold)
> > >>I finally fixed it, but it was a nightmare trying
> > to
> > >>figure it out.
> > >>
> > >>My point is this, if you are on the other side of
> > a
> > >>router from the clients, your router may not have
> > your
> > >>ARP address for some odd reason.  Yes, it should
> > be
> > >>asking, but if another machine has the same IP, it
> > >>could be responding to the ARP request first, or
> > not
> > >>responding at all for some reason.  This would
> > explian
> > >>why you had to telnet and ping arround for the
> > others
> > >>to get to you.
> > >>
> > >>So, in a nutshell, check to see if another machine
> > has
> > >>the same IP.
> > >>
> > >>Without more knowledge of your network topography
> > it
> > >>can be difficult to determine what the problem
> > >>is.
> > >
> > >this is the topo of my network:
> > >
> > >internet
> > >  |
> > >(public ip from AT&T cable modem, forget the brand
> > of NIC but use ne
> > >driver)
> > >linux firewall
> > >(private fixed ip 192.168.1.1, kingston PCI NIC)
> > >  |
> > >switch
> > >| | |
> > >| | |-fixed ip 192.168.1.2 (3com nic)
> > >| |---fixed ip 192.168.1.3 (3com nic)
> > >|-----fixed ip 192.168.1.4 (3com nic)
> > >
> > >all boxes were asigned fix ip except the public ip
> > (were assigned by AT&T
> > >cable)
> > >
> > >>From: "Paul Ingendorf" <pauldy at wantek.net>
> > >>Reply-To: discuss at ntlug.org
> > >
> > >What kind of network are you on; DSL @HOME other
> > cable provider using pppoe
> > >dhcp static?  Also what flava are you using.   From
> > your
> > >previous posts I see possible @HOME with redhat 6.2
> > running a 2.2.14
> > >kernel.
> > >  I could be wrong but just to go out on a limb are
> > you
> > >using a etherpro driver on an intel 10/100 ethernet
> > card?  If so there
> > >maybe
> > >a problem reading the mac adress from the card with
> > the
> > >driver that came with that kernel.  This causes
> > multiple machines with this
> > >card to get the same Hardware ethernet address.  On
> > DHCP
> > >this can create some interesting lease problems
> > where multiple machines on
> > >the network are sharing the same ip.  Which goes
> > back to
> > >the suggestion by Jared.  There is also the
> > possibility that your being
> > >given a dhcp address that someone else has decided
> > they want
> > >as their static ip or vice versa.  So I wouldn't
> > discount Jareds suggestion
> > >based off the idea of your network being to simple.
> > >
> > >Yes, I am using @HOME, with redhat 6.2, but running
> > 2.4.14 kernel.
> > >The eth0 on the firewall is using ne driver (forget
> > the brand name, cheap
> > >one)
> > >the eth1 on the firewall is using 8139too driver
> > (realteck chip)
> > >the rest of boxes use 3com 3c509 nic
> > >
> > >I am useing tinydns as dns server running on
> > firewall.
> > >
> > >does not setup ARP (should I?)
> > >
> > >
> > >
> > >
> > >
> > >>
> > >>Jared Cook
> > >>
> > >>http://www.ntlug.org/mailman/listinfo/discuss
> > >
> > >
> > >
> > >
> >
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