JensB's questions

I have a Proliant Microserver Gen8 running windows server 2019 with a Xeon E3 1260L, one SSD for OS, and two 3TB 5400 RPM disks for storage (software raid).

The server acts as a NAS and has a few small web apis on it. For the absolute majority of the day this server is sitting idle with no queries at all (I'd wager it sees less than 2 hours usage per 24 hours).

So, as a fun experiment I want to reduce the power usage of this machine while it is in idle state to the lowest possible while still maintaining system stability. It is completly fine that it takes time to answer initial queries.

I have experimented with reducing minimum processor and maximum processor state, and while idle the server now uses 35 watts (measured with plug between server and socket). When it's in use it uses about 65 watts.

I reckon thats pretty good, but is there anything else I can do that would reduce Idle power usage?

There are plenty of guides on how to set up Lets Encrypt for Azure Windows Web App Services, but I can't find any at all for Linux based services.

Here are two example of such tutorials (that require windows).

• https://www.hanselman.com/blog/SecuringAnAzureAppServiceWebsiteUnderSSLInMinutesWithLetsEncrypt.aspx
• https://www.youtube.com/watch?v=C6V_mBo-gnE

In the tutorials above, and all other tutorials I have found you need to use Web App Extensions to do the actual updating of the cert every 3 months. But these are not available on Linux apps.

This is all you see in the Azure portal when you try to navigate to it.

So, does anyone have any links, or helpful tips on how to set up automated Let's encrypt certificates for Azure Linux Services?

I have a HP Proliant ML350 G6 with two integrated Broadcom NetXTreme Gigabit Ethernet ports running Windows server 2016, updated as of today.

If I share a folder on my hyper v host I can add and remove files at around 90MB/s through the network (both ports deliver the exact same speed).

Here you can see the details on the host.

The above picture is on the hyper V host. I have added Network 2 to the hyper v switch manager as Network 2.

Here you can see a picture of the Virtual switch manager and the network connection in the guest.

The problem is that when I share a folder from the guest to the network I can only access that folder att 10MB/s. That is, somewhere along the line my gigabit network is being choked down to a measly 100Mbit. I am not using a legacy connection.

It's not the disk, because on the guest I can shuffle files around between the harddrives at around 100MB/s. Picture below is the guest copying files from one drive to another.

So my question is. What must I change in order to get Gigabit speeds from the Hyper V guest to my network as I'm now only getting 100Mbit from the guest to the network.

In all places I've looked it says Gigabit and the host can deliver on it, so why can't the guest?

Edit: So to clarify: Any network PC can access the hyper V host network file shares at ~100MB/s. The host can read the guest network shares at ~100MB/s. If the same PCs that can access the host att 100MB/s try to access the guest they only get 10MB/s speed when accessing any of the hyper V Guests network shares. Why?

Edit 2: As per request here are more details. Red is the host operationg system. Green is inside the Hyper V machine.

Another picture of the Guest network settings.

I have HP G6 Hyper V host with 6 cores, 24 gb ram, and a p410i raid controller (with 512mb ram and backup battery) running windows 2016 (updated today).

When copying data from a SSD (not in raid array) to another P410i Raid 1 managed drive in the hyper v (drive is called S:) host I am getting around 120Mb/sec, which is as expected considering it's two WD green drives and a little older raid card.

The only thing that is on the S: disk is a hyper V hard drive used by a virtual machine called "Share". That harddrive is mounted as the second drive on that virtual machine (ie no OS installation). The machine (Share) has one folder on the disk called \Storage.

The \Storage\ folder is shared to the network.

When copying or reading to this folder over the network I am getting a max speed of ~10Mb/Sec (Gigabit Ubiquity network). When moving files internally on the Virtual Machine to this drive I am getting around ~10Mb/Sec. If I share the S: drive directly from the host I am reading or writing at around ~100 Mb/Sec.

Whats wrong and what can I do?

I’ll shortly be traveling to a country with less lenient laws regarding free speech.

I have a Windows 10 machine. I want to block this machines possibility to communicate on all interfaces except over a VPN tunnel (there is a network port and WiFi). If the VPN tunnel is down for any reason no network traffic is allowed. Not even on LAN.

If it’s easier to do this with windows server I’ll gladly switch.

I have found several posts regarding windows firewall which I have tried to follow but in my experience it does not catch everything (might be errors on my side though).

I also have software such as Windscribe VPN but I have managed to go around its firewall when it goes down so I don’t trust it, and it does not seem to block DNS queries at all (I was catching lots of dns queries in PiHole when Windscribe was blocking)

Can this be accomplished with some clever power shell?

Thanks for the help!

I have a 2012 R2 Hyper-V host running System center endpoint protection. There are two virtual windows servers being hosted by it.

I have all .vhdx drives in a folder on d:/server/

Can I trust the antivirus to scan these files and find viruses or do I need to have an antiviurus program in each virtual machine?

If I scan these files manually endpoint protection almost immediately returns no viruses found, which makes me wonder if its even trying to scan them.

I have just set up L2PT VPN server using RRaS on a Windows 2012 R2 server. I can connect to this machine from the internet and access the local network. This works perfectly.

I would however like to block internet access for the connected users so that they cannot browse (or download) anything from the internet over the VPN connection. They should only be able to access the local network, nothing else.

I can't find any guides for how to do this, any suggestions?

I have a NAS with a bunch of files I dont want to loose and a linux VPS with 250GB space off site.

The NAS runs an FTPS server. The VPS runs Debian/Linux

I want the VPS to copy/mirror all the contents from the FTPS to a local folder once per week. By this I mean:

1. On first run copy all files that are in a specified folder on the FTPS to a local folder (including sub folders)

2. On the second run add all new files that are either updated (different size or modified date)

3. Delete all local files on the VPS that are no longer available on the FTPS server.

4. Never touch the contents on the FTPS/NAS server

I'm sure there must be some script or program I can use to solve this. The ones I've found so far are either for windows or don't support FTPS.

I want to back up the contents of one of my servers to a local folder.

The server has a FTPS service set up and running (regular FTP is not an option). I want to copy the contents of the FTP into a local folder on my windows 2003 machine running at home on a weekly basis.

I really dont need to keep a historical record of removed files so if a file is removed on the FTP server it should also be removed in the backup at next sync.

So my question is: What is the best way to keep a local copy of an FTPS server.

I recently bought a VPS and am in contact with their support about this issue, but I would also like to get an expert opinion from here.

It's a fully updated Windows Server 2008 R2 VPS hosted on VmWare ESXi 5.

In order to test the disk speed on the VPS I have tried copying large files around on the different partitions. I am getting speeds of around 30Mb/s between them which I think is decent, however when I'm copying files the CPU is also being hit hard across all 4 cores with the System process accounting for about 50% of it. When the copying stops the CPU goes back to 0% load.

This might be a duplicate of this thread, maybe its the same problem here?

It's just weird that the server is at 0-1% when I'm not copying and holding at 40-80% when I copy. If it's the same as in the other thread I linked, it sounds like I should have a constant high load.

What could be the cause of this, and what should I ask the provider to do/ test?