Network-Fu

I've recently setup a new monitoring system for a mid-sized business. I've got Icinga2 running collection of data on about 50 windows servers, sending that information to graphite for storage, and then using Grafana to make a dashboard.

The problem I'm running in to is that Icinga2 collects memory and disk usage as the space that is free. But when visually looking at it on a dashboard you would want to see amount used/ total available. Otherwise it's pointless to even graph it out.

Any help here would be greatly appreciated.

I've recently setup a new monitoring system for a mid-sized business. I've got Icinga2 running collection of data on about 50 windows servers, sending that information to graphite for storage, and then using Grafana to make a dashboard.

The problem I'm running in to is that Icinga2 collects memory and disk usage as the space that is free. But when visually looking at it on a dashboard you would want to see amount used/ total available. Otherwise it's pointless to even graph it out.

Any help here would be greatly appreciated.

Basically I've been looking for an at least 12 bay server for shared storage in my homelab. I realize that the raid controller in it will probably have to be replaced but even spending $150+ on new controllers it still seems like I can get the C2100 much cheaper on Ebay than any of the alternatives I've seen. A 12-16 bay Supermicro case with a non SAS2 controller (so no drives larger than 2TB) is still like $300+ . The C2100 seemed like a decent compromise but I wanted to hear from you guys to see if there were any pitfalls I wasn't thinking of in advance. I'm also open to other suggestions as well though.

I was wondering if anyone had any good resources/guides for setting up and running KVM with OVirt that start at a fairly basic level and ramp up from there. I've gone through the documentation for both and I think I'm just missing something. The quickstart guide for OVirt doesn't even mention KVM but I was under the impression that it was a web management system for KVM and LXC. I've only recently started messing in the linux landscape but this is the first thing that's really tripped me up. I will continue to look and if I find anything helpful I'll make sure to post it back up here.

So I was talking with a friend and he proposed something I found interesting and I was curious if there was already a pre-built solution for. If not I plan to design one for the fun of it. Basically he wants some kind of device (probably a rasberry PI) that can be configured and sent out to vendors to be plugged in to a TV. It should have a youtube or vimeo playlist that it cycles through but that it can cache until it detects a change (basically because a lot of these vendors have limited bandwidth). It should be remotely update able with a new list of videos. The basic idea being that a non-technical person can plug it into their TV, put in the WiFi credentials and then let it run. It wou

I have searched hi and low, far and wide, and I can not seem to get this working correctly, or find an up to date guide. I have an ELK stack installed and seemingly set up correctly on CentOS 7. I'm trying to take logs from IIS 7.5 and send them to logstash so I can display them in Kibana. I've tried nxlog-ce, right now I'm trying the enterprise version. I'm having the damndest time getting it to work. Any help, link to a recent guide that you've used to get it to work, anything at all would be greatly appreciated. Thanks!

I've recently started playing around with SAMBA 4 in my home lab and I've been impressed with it so far. It's definitely not a 1 to 1 Active Directory replacement but it has apparently come a long way from being a file and printer manager. I was wondering how many people were running it for single sign on in their home labs? Has anyone run in to any problems or down sides? Really just wanting people's opinions on it.

So I've been toying around with using a sata DOM (like this one http://www.amazon.com/gp/product/B016EEPDGQ?keywords=sata%20dom&qid=1452463086&ref_=sr_1_4&sr=8-4 ) as the boot disk for my dell R710s I was wondering if anyone had tried this before? I'm planning to run Centos 7 with KVM as my hypervisor and the 8 hdd bays will be running RAID-50 to host my VMs from. I know raid 5 is dead but the drives are only 300GB a piece so it's less of an issue. Anyways I'd like to seperate the boot partion out and I figured a Sata DOM would be an easy way to do it. Also does anyone know if you can use the internal sata ports for this or if you need a PCIe adapter?

Title says it all. I ordered 6 x 8 GB dimms for my dell r710. I already had 6 x 4gb sticks installed. It only has the 570w power supplies and it's giving me a w1628 performance degraded error when I have all 12 sticks of RAM installed. Does the R710 require the high capacity 870w power supplies to run more RAM or do I have a setting wrong?

edit: for the record I'm running dual x5570 processors.

Hello all! I did a cursory search to see if this was a topic that had been directly addressed (I was pretty sure it had) but I kind of came up dry so I figured I'd ask it again.

I'm looking for at least a 28u rack. Enclosed would be better than not but I'm open. I'm finding that they're either super expensive or that freight costs will put a big hole in my wallet. I was wondering where you guys got your racks? I've thought about just following a guide and building one but it seems like a lot of work. :)

Thanks!

Hello all,

Just kind of stumbled on this sub-reddit a month or so ago from r/sysadmin and it's been a good source of information. Basically I'm looking for a good firewall, router, switch recommendation for the new homelab I'm building. So far I've bought a couple of Dell R710s and am in the process of putting together a 24 bay NAS running freeNAS. What I need is a good recommendation for homelab networking equipment.

The stuff we use at work is rather pricey and I'd like to avoid dropping 5 grand on networking equipment. I'd prefer Cisco for router and switch but anything more than 2 years old but less than 10 is kind of out of my wheelhouse as those are the periods of cisco equipme

The problem I'm trying to solve is that our company employs a number of engineers. They work with a lot of old industrial controllers, PXI/VXI/VME etc., etc. that they'd like to be able to boot from multiple different OS images. Some of the peripheral cards they're using to test stuff only works on software release 1.2 of some software but others need 1.8. Stuff like that.

So what I'd like to be able to do is set up a pxe boot library that allows them to choose from a list of OS images. Once booted they would still need to be able to load drivers/ interact with peripheral hardware. Most of the images would be windows but some older stuff goes back as far as windows 98. Also if

Hello All,

I work for a small/medium sized business running 4 dell poweredge T620s (plus a bunch of other hardware that doesn't come in to play of course) that are running 8 to 16 VMs a piece. They run all of the standard services for a Windows network (AD,DNS,DHCP,Exchange,WSUS, etc. etc). Plus a number of web servers and sql servers and all sorts of custom applications.

What my boss has requested of me is that I establish a private network connection for each of the 4 main servers so that the VMs on them can communicate with one another without going through the physical nic and out to the switch stack. I think he's trying to lower latency between some leaky p

Hi there everyone. I realize this might belong more in r/programming or somewhere else but as I'm doing this from a Systems Administration perspective I figured I'd ask here first.

We run a mostly Windows shop. All of the basics AD, DNS,exchange, etc. Plus a bunch of custom applications that do all sorts of things that tie in to our main website. Basically I'm looking to put together a dashboard, relatively simple to start that can get more detailed with time, that displays status indicators for everything from server uptime, running services, did scheduled SQL processes run correctly, are custom applications running as intended. Eventually I'd love to be able to tie in o