- WLUG - wlug.mailman3.com

Re: [Wlug] Monitoring for a network

by Mike Peckar

opennms.org

Oct. 24, 2012

Re: [Wlug] Monitoring for a network

by Steve Pelland

We used MRTG at Verisign while I was there and it was fine... I dont get that visibility at this place so I am not sure here... On Wed, Oct 24, 2012 at 12:59 PM, Eric Martin <eric.joshua.martin(a)gmail.com>wrote: > I'm trying to get a better handle on what's happening on my network at > work. I'm currently using Nagios to monitor the big things (Server health, > switch health, etc), but I'd like more granular statistics (how much data > is coming and going, are any links saturated, etc). A quick glance shows > that MRTG, Cricket, and RRD are good things to start playing with. I'm > staring to play around with MRTG, but I'm hearing rumors of scalability > issues and I don't want to get deep into MRTG if I should be putting > resources elsewhere. > > A quick sketch of the network is a few internet connections, our router, > and a few switches for networking along with a few switches for VoIP as > well as our PBX. I don't want to monitor every port all the time, I > instead want to monitor the uplinks of the switches to have a good idea, > and look at the switch if something looks awry. > > My question to the group is, what do you use / recommend, and do you have > anything that sticks out in your head about any of these packages (good or > bad)? > > Thanks in advance, > -- > Eric Martin > > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > >

Oct. 24, 2012

Monitoring for a network

by Eric Martin

I'm trying to get a better handle on what's happening on my network at work. I'm currently using Nagios to monitor the big things (Server health, switch health, etc), but I'd like more granular statistics (how much data is coming and going, are any links saturated, etc). A quick glance shows that MRTG, Cricket, and RRD are good things to start playing with. I'm staring to play around with MRTG, but I'm hearing rumors of scalability issues and I don't want to get deep into MRTG if I should be putting resources elsewhere. A quick sketch of the network is a few internet connections, our router, and a few switches for networking along with a few switches for VoIP as well as our PBX. I don't want to monitor every port all the time, I instead want to monitor the uplinks of the switches to have a good idea, and look at the switch if something looks awry. My question to the group is, what do you use / recommend, and do you have anything that sticks out in your head about any of these packages (good or bad)? Thanks in advance, -- Eric Martin

Oct. 24, 2012

Re: [Wlug] help diagnosing PC issue: suspect power supply

by Walt

Take a close look at the capacitors on the motherboard. If they are bulging you can either replace them or the whole board. Walt On 10/11/2012 10:30 AM, John Stoffel wrote: >>>>>> "Brett" == Brett Russ<bruss(a)alum.wpi.edu> writes: > > Brett> Yes, I've done that several times. In fact, since my BIOS is > Brett> having issues preserving settings and shows the CMOS checksum > Brett> failure quite often, I usually have to revert to defaults just > Brett> to boot. This, despite a brand new CMOS battery. This is the > Brett> other symptom in my original email that I can't yet explain. > Brett> But, if it ends up being a motherboard HW issue, then anything > Brett> could go wrong including corrupted CMOS. > > This points more to a low level hardware issue in the motherboard, or > possibly the CPU. Hard to know. If it's old enough, it might be time > to just replace it. > > John > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug >

Oct. 11, 2012

Re: [Wlug] help diagnosing PC issue: suspect power supply

by John Stoffel

>>>>> "Brett" == Brett Russ <bruss(a)alum.wpi.edu> writes: Brett> Yes, I've done that several times. In fact, since my BIOS is Brett> having issues preserving settings and shows the CMOS checksum Brett> failure quite often, I usually have to revert to defaults just Brett> to boot. This, despite a brand new CMOS battery. This is the Brett> other symptom in my original email that I can't yet explain. Brett> But, if it ends up being a motherboard HW issue, then anything Brett> could go wrong including corrupted CMOS. This points more to a low level hardware issue in the motherboard, or possibly the CPU. Hard to know. If it's old enough, it might be time to just replace it. John

Oct. 11, 2012

Re: [Wlug] I presume we're meeting the 10th of Oct?

by Frank Sweetser

I'm almost there now, we'll see what's going on Tim Keller <turbofx(a)gmail.com> wrote: >I'm standing outside of Higgins 230 and its's full of people... None >of which look like they're here for wlug... > >On 10/9/12, Chuck Anderson <cra(a)wpi.edu> wrote: >> I reserved Higgins Labs 230 again, same place as last month. >> >> On Mon, Oct 08, 2012 at 04:41:23PM -0400, Tim Keller wrote: >>> Chuck, >>> >>> Where will this meeting be held? My current demo setup is two pcs... >>> I'm probably going to need help depending on where we have it. >>> >>> Thanks, >>> Tim. >>> >>> On 10/5/12, Chuck Anderson <cra(a)wpi.edu> wrote: >>> > Sounds great! >>> > >>> > On Fri, Oct 05, 2012 at 11:01:24AM -0400, Tim Keller wrote: >>> >> That's a great idea. I do lots and lots of virtualization >stuff.. I'd >>> >> be >>> >> willing to do some research, setup a demo and do a talk about >>> >> OpenStack. >>> >> >>> >> Chuck, what do you think? >>> >> >>> >> On Thu, Oct 4, 2012 at 9:19 PM, David Glaser >>> >> <dglaser(a)glaserresearch.net>wrote: >>> >> >>> >> > How about the cloud -say OpenStack. I see references to it. >>> >> > >>> >> > -David >>> >> > On 10/04/2012 03:38 PM, Tim Keller wrote: >>> >> > >>> >> > Hey Gang! >>> >> > >>> >> > I presume we're having a meeting on the 10th? Does anybody >have a >>> >> > topic/idea? >>> >> > >>> >> > Thanks, >>> >> > Tim. >> _______________________________________________ >> Wlug mailing list >> Wlug(a)mail.wlug.org >> http://mail.wlug.org/mailman/listinfo/wlug >> > >-- >Sent from my mobile device > >I am leery of the allegiances of any politician who refers to their >constituents as "consumers". >_______________________________________________ >Wlug mailing list >Wlug(a)mail.wlug.org >http://mail.wlug.org/mailman/listinfo/wlug -- Sent from my Android phone with K-9 Mail. Please excuse my brevity.

Oct. 10, 2012

Re: [Wlug] I presume we're meeting the 10th of Oct?

by Tim Keller

I'm standing outside of Higgins 230 and its's full of people... None of which look like they're here for wlug... On 10/9/12, Chuck Anderson <cra(a)wpi.edu> wrote: > I reserved Higgins Labs 230 again, same place as last month. > > On Mon, Oct 08, 2012 at 04:41:23PM -0400, Tim Keller wrote: >> Chuck, >> >> Where will this meeting be held? My current demo setup is two pcs... >> I'm probably going to need help depending on where we have it. >> >> Thanks, >> Tim. >> >> On 10/5/12, Chuck Anderson <cra(a)wpi.edu> wrote: >> > Sounds great! >> > >> > On Fri, Oct 05, 2012 at 11:01:24AM -0400, Tim Keller wrote: >> >> That's a great idea. I do lots and lots of virtualization stuff.. I'd >> >> be >> >> willing to do some research, setup a demo and do a talk about >> >> OpenStack. >> >> >> >> Chuck, what do you think? >> >> >> >> On Thu, Oct 4, 2012 at 9:19 PM, David Glaser >> >> <dglaser(a)glaserresearch.net>wrote: >> >> >> >> > How about the cloud -say OpenStack. I see references to it. >> >> > >> >> > -David >> >> > On 10/04/2012 03:38 PM, Tim Keller wrote: >> >> > >> >> > Hey Gang! >> >> > >> >> > I presume we're having a meeting on the 10th? Does anybody have a >> >> > topic/idea? >> >> > >> >> > Thanks, >> >> > Tim. > _______________________________________________ > Wlug mailing list > Wlug(a)mail.wlug.org > http://mail.wlug.org/mailman/listinfo/wlug > -- Sent from my mobile device I am leery of the allegiances of any politician who refers to their constituents as "consumers".

Oct. 10, 2012

Re: [Wlug] help diagnosing PC issue: suspect power supply

by Brett Russ

On Wed, Oct 10, 2012 at 4:58 PM, John Stoffel <john(a)stoffel.org> wrote: > Actually, I'd also go into the BIOS and reset it to the manufacturers > defaults, just in case you made a change at some point to tweak > settings for more performance, etc. I.E. make sure there's no > overclocking or anything like that. Yes, I've done that several times. In fact, since my BIOS is having issues preserving settings and shows the CMOS checksum failure quite often, I usually have to revert to defaults just to boot. This, despite a brand new CMOS battery. This is the other symptom in my original email that I can't yet explain. But, if it ends up being a motherboard HW issue, then anything could go wrong including corrupted CMOS. thanks, Brett

Oct. 10, 2012

Re: [Wlug] help diagnosing PC issue: suspect power supply

by John Stoffel

Brett> I will double check later tonight the completely bare motherboard Brett> (with CPU and at least one DIMM, of course) to see if I can repro Brett> again in this state. I'll check for any LEDs and flashing patterns. Actually, I'd also go into the BIOS and reset it to the manufacturers defaults, just in case you made a change at some point to tweak settings for more performance, etc. I.E. make sure there's no overclocking or anything like that. Good luck! John

Oct. 10, 2012

Re: [Wlug] help diagnosing PC issue: suspect power supply

by Brett Russ

All, I'll try to address everyone's responses at once. In short, it's nothing to do with the OS because the problem is quite simply a failure for the BIOS to complete POST, and quite often at that. As I mentioned I've already repro'd the problem with everything (which means a video card and all SATA devices and all USB devices b/c everything else is onboard) unplugged. This is why I suspect the HW. The next step is, as someone suggested, monitoring motherboard LEDs, although I haven't seen much here yet. There is no beep pattern when things fail. There is, apparently, a beep at end of POST, which I don't hear when the problem repro's, which indicates to me that I'm stuck in POST somewhere. I will double check later tonight the completely bare motherboard (with CPU and at least one DIMM, of course) to see if I can repro again in this state. I'll check for any LEDs and flashing patterns. Lastly, I'll manually disable through BIOS menu as many devices as I can and hope that the settings stick across reboot (I'd mentioned some problems in this department in my original email). Even then I'm not sure if the BIOS will still include these devices in POST (I'd expect it might) and then just disable them before proceeding to boot the OS. Thanks for the help all! Brett

Oct. 10, 2012