On Thu, Oct 09, 2003 at 07:23:08PM +0100, Paul Taylor wrote:
Hi all:
I expect this is slightly off list but I am perplexed by a problem with our network which seems beyond the understanding of the suppliers. We have a brand new set of swiches with a gigabit backbone as a result of a leak following some dodgy building of the new server room. The switches are all D-Link. There are 8 24 port switches which are stacked in blocks of 4 and a master with the gig modules. Once we got the network running they kept falling over and resetting themselves to the factory default setting for the IP. The supplier and D-Link "solved" it by replacing all of them and they have worked for a few days but they have reset again. My question is, what would cause a switch to reset? It wouldn't reset if it was bombarded with packages? Would it be a bad NIC card somewhere in the system sending higher than normal voltage packages? All I can think of is
Should that reset the whole stack or just the module with that NIC plugged into? It might help to know if they found any faults on the units they replaced. Also do you have a note of the serial numbers of all of the units? It case they all come from the same production run.
that the power leads are causing problems. The suppliers have run the power cables through all of the data runs. Would this cause enough extra inteference to cause a switch to reset itself?
If these power cables are 230VAC, or even 415VAC then they don't know what they are doing. It is not acceptable to run mains cables with data cables. Telephone, alarm, CATV or PoE is generally ok to run with network cables so long as any voltages anywhere do not excede 120VDC.
Also (apologies to Thomas following his last missive about read the f** archives) but I can't find some discussion I had about squid settings sometime back. I believe it was mainly with Mark Evans but anyone else's oppinion would be welcome.
The SWGFL settings are something like. cache_peer proxy.st-peters-high.devon.sch.uk parent 8080 7 no-digest no-query default acl localservers dst 10.3.48.0/255.255.252.0 10.64.204.0/255.255.255.0 never_direct deny localservers never_direct allow all always_direct allow localservers always_direct deny all
I am setting up a box with the swgfl and they are unlocking port 80 for me. Would it be better to use 2 NICs or would just one using ipchains be enough to protect the internal network? I would appreciate anyones sample squid.conf with a 2 card setup to save me some time on books and how-tos. I realise this is rather lazy but I am a teacher and time is not a luxury I possess.
-- Mark Evans St. Peter's CofE High School Phone: +44 1392 204764 X109 Fax: +44 1392 204763