Server Installation 2020

A project to provide VPN access to the River System Raspberry Pis to allow WMT Volunteers and Staff to log in from home. Triggered by the COVID19 lockdown
hamishmb
Posts: 1886
Joined: 16/05/2017, 16:41

Re: Server Installation

Post by hamishmb »

I would suggest maybe downgrading back to ADSL - it was faster than what we have now. I guess there's a reason why we can't/shouldn't do that though or we'd have already done it.
Hamish
Penri
Posts: 1284
Joined: 18/05/2017, 21:28

Re: Server Installation

Post by Penri »

Hamish

Our connection has not changed from what it was and will not until OpenReach sort themselves out. The new router handles both ADSL and VDSL so switch over if and when it happens will be transparent to us.
I can’t account for the current lack of performance. If you can give me some performance numbers over a significant period I can try bending the ISPs ear over it but their performance promises are vague at the best of times.

Penri
hamishmb
Posts: 1886
Joined: 16/05/2017, 16:41

Re: Server Installation

Post by hamishmb »

Should maybe take some more scientific readings, but I've observed we get around:

1 MB/s down (8 Mbps)
50 KB/s up (0.5 Mbps)

The uplink speed is really the part that's the problem - it's slow enough that sometimes timeouts occur and it just hangs. This doesn't happen often though, so whether it's worth taking the time to pester them at the moment is debatable - the system is usable for the most part, if a bit frustrating.
Hamish
hamishmb
Posts: 1886
Joined: 16/05/2017, 16:41

Re: Server Installation

Post by hamishmb »

Okay, things are a lot better now the internet connection is faster. Transferring a 50MB file of zeros from home to sumppi and back over scp got these speeds:

470 KB/s down (~4 Mbps)
460 KB/s up (~4 Mbps)

These can't be compared directly to the above figure because that was just testing the internet connection speed, rather than using scp and the VPN to transfer data. This is much better, and should be much more pleasant to use.
Last edited by hamishmb on 01/10/2020, 15:48, edited 1 time in total.
Hamish
TerryJC
Posts: 2609
Joined: 16/05/2017, 17:17

Re: Server Installation

Post by TerryJC »

Pretty good I would say, but not before time.
Terry
TerryJC
Posts: 2609
Joined: 16/05/2017, 17:17

Re: Server Installation

Post by TerryJC »

hamishmb wrote: 01/10/2020, 12:08Okay, things are a lot better now the internet connection is faster. Transferring a 50MB file of zeros from home to sumppi and back over scp got these speeds:

470 KB/s down (~4 Mbps)
460 KB/s up (~4 Mbps)

These can't be compared directly to the above figure because that was just testing the internet connection speed, rather than using scp and the VPN to transfer data. This is much better, and should be much more pleasant to use.
Hamish,

Are you still setting the MTU value to 576 when using the VPN?
Terry
hamishmb
Posts: 1886
Joined: 16/05/2017, 16:41

Re: Server Installation

Post by hamishmb »

Hi Terry,

Yes, I am. I've not logged in for a few weeks mind. Do I not need to do that any more?
Hamish
TerryJC
Posts: 2609
Joined: 16/05/2017, 17:17

Re: Server Installation

Post by TerryJC »

hamishmb wrote: 24/11/2020, 16:23Yes, I am. I've not logged in for a few weeks mind. Do I not need to do that any more?
Well I've been using it too, but it occurred to me that we might not need it now that the bandwidth is half decent.
Terry
hamishmb
Posts: 1886
Joined: 16/05/2017, 16:41

Re: Server Installation

Post by hamishmb »

Good point. I've just got it in a script so it's no hassle for me to do it either way. Maybe I'll have a go soon without it.
Hamish
TerryJC
Posts: 2609
Joined: 16/05/2017, 17:17

Re: Server Installation

Post by TerryJC »

I haven't been moving anything substantial, so I doubt it would show up anyway.
Terry
Post Reply