9
votes
Accepted
Connect AWS route53 domain name with K8s LoadBalancer Service
There are five distinct pieces of infrastructure automation potentially at play:
ip to node assignment
dns name to ip mapping
load balancing to member mapping
kubernetes service ip to pod member ...
- 1,252
8
votes
What's the purpose of local storage hdd in Blade servers with virtualization?
SD card OS installation for virtualization hypervisor hosts is common, but at scale, it's less reliable than using simple RAID 1 on regular disks or SSD.
See: What happens when the USB key or SD card ...
- 199k
6
votes
Do you trust LACP?
To tell the true, LACP was born exactly to solve a dangerous problem itself caused by LAG (Link aggregation Group).
When used between directly attached interface, LAG is not dangerous. In such a ...
- 51.3k
5
votes
What's the purpose of local storage hdd in Blade servers with virtualization?
Obvious: OS and booting. Having local boot drives can make sense. I also prefer the virtualization layer to not be dependent on an external storage.
It is so common that for example SuperMicro has ...
- 52k
4
votes
Accepted
How to use another IP-address for outgoing traffic?
Most networking related tools like ping will have an option to select the source IP they will use for outgoing connections, so for example with ping you can use ping -I IP-B.
For all traffic to use ...
- 663
3
votes
Accepted
VLAN/Subnet Design
The 8 VLAN interface restriction on the v1910 is for routing purposes. If you have something else do your routing, then you can create as many VLANs as you need.
I would probably look at putting a ...
- 69.2k
2
votes
Accepted
DNS External Resolvers Needed?
External Resolvers
One perspective on having the external resolvers would be to put the External servers in the DMZ. Typically, any internet accessible server should be separated off from the rest of ...
- 1,886
2
votes
Do you trust LACP?
Yes, I trust LACP. I prefer LACP over all other link aggregation methods because it's so reliable, flexible, and is an IEEE standard so vendor interop is guaranteed.
If you think your virtual ...
- 3,566
2
votes
What's the purpose of local storage hdd in Blade servers with virtualization?
I see following reasons to use local HDDs:
(I am going with) Windows Server
(I need some) redundancy (RAID 1)
(and) performance (in case of RAID 1 SSD, boot is faster than SATADOM or Flash)
- 3,918
1
vote
Can one device simultaneously be a reverse proxy, load balancer, and firewall?
Yes. Nearly every full-featured firewall on the market has at least basic load balancer and reverse proxy features. And many full-featured load balancers have firewall features in them so that a ...
- 23.2k
1
vote
How to learn network administration
If you are thinking about physical network admin experience then you need to start playing with switches, hubs, patching etc. You can buy cheap hardware and setup something at home. Otherwise learning ...
- 1,113
1
vote
What's the purpose of local storage hdd in Blade servers with virtualization?
Installing the hypervisor on local storage such as you have (small drives configured in RAID 1) was and still is a very common practice.
In short, nothing to see here.
- 111k
1
vote
Should Cat6 cables be used for servers ('important hosts') rather than Cat5-E?
Well, here's what I would do:
Are there already Cat5e cables running from all the servers to switches / patch panels?
If yes:
Are you having any physical layer connectivity issues? (i.e., frame ...
- 21
Only top scored, non community-wiki answers of a minimum length are eligible