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Common Server issues – FAQs and answers from those in the know

SQL Server Express LocalDB 2025

4 December 2025 @ 3:35 am

Was anyone able to install LocalDB 2025? Attempting to download through SQL Server Express results in 0MB size MSI. Below is what I get when I try to download it. I also couldn't find a direct link to the MSI. When I do decide to download it, there is a empty folder created named en-us. MSI is nowhere to be found. enter image description here

Supermicro X9DRG-QF-B Motherboard won't boot with 8 RDIMMs installed, only 7

4 December 2025 @ 12:28 am

I recently pulled one of the CPUs on my Supermicro X9DRG-QF-B to save power, going down to a single socket. I had 128GB RAM (8 x 16GB DDR3 ECC RDIMM) installed, spread across both sockets, which worked fine. However, once I went down to a single CPU, the system would only boot with 7 DIMMs installed around the new socket (112GB installed) -- if I install all 8 DIMMs, I can't even get to the POST screen on boot. Everything woks fine once I remove that 8th DIMM. The motherboard docs state this is supported: screenshot of motherboard DIMM support documentation and here's the population plan for my RAM (DRx4 ECC 1.35v) and CPU (Xeon e5-2650L v2): ECC RDIMM population for e5-2600 v2 CPUs I also know it's not the RAM itself, as the system worked fine with 128GB spread across both CPUs. FWIW I'm running the latest

Group policy with Wireless Network (IEEE 802.11) Policies set is applied but completely ignored. Need clarification

3 December 2025 @ 11:53 pm

As per title I've created a dummy GPO that is intended to prevent targets from connecting to infrastructure-type networks (just for the sake of testing), but it does not seem to be taken into account by laptops. gpresult /r states that the policy has been applied, I see no errors in the report generated by netsh wlan show wlanreport as well. Actually, I see nothing at all :) I've tried tons of various combinations of settings but have seen no trace of any changes made by Wireless Network (IEEE 802.11) Policies section tweaks. Changes in other sections within this policy apply like a charm. Clients are on Windows 11 25H2. GPO currently applies to a group of domain computers that are settled in default "Computers" container in AD. Could it be a reason? Does it require OU to work? Please help.

`zfs rollback -r` not working as expected

3 December 2025 @ 6:10 pm

I have create a dataset vm on my pool, i.e., rpool/vm. Within that dataset I create ZVOLs. If I make a recursive snapshot via zfs snapshot -r rpool/vm@now a snapshot of the ZVOL is created as expected. However, if revert zfs rollback -r rpool/vm@now only the dataset itself is being rolled back, not the ZVOL. For the latter I have to do en explicit zfs rollback rpool/vm/myvol@now which is not what I expected since I did a recursive rollback. Is that behaviour intended?

Pacemaker systemd issue

3 December 2025 @ 5:19 pm

I have pacemaker setup with one resource. The resource is systemd service. I set up the monitoring interval and on-fail action. When I manually stop the service I would expect that pacemaker will detect it and try start it. But it doesn't do anything. It still shows as running even the systemd status shows as inactive. Does anyone know if it is normal behaviour?

NFSv4: What's the point of the refer and replicas export options?

3 December 2025 @ 4:22 pm

I'm trying to get some simple kind of failover working with an NFS share. There aren't hard requirements on data consistency during writes (even a working multi-server read-only setup would be fine) and the data contents are mostly Zip files in the range of 1-10GB each. The thing is that there are two servers containing the same data already on ZFS filesystems with a volume per server in the range of several 100TB data. So I can't easily switch to another (distributed) filesystem and should really find a way using more or less pure NFS (or something that behaves similarly) with the data as I already have it. I've tried a few different things already, but to no avail: autofs This can pick an available host of a list of hosts, but it only kicks in during the initial mount. So once the directory is mounted (and stays mounted due to regular accesses), an offline NFS server will still result in "Stale file handle" or "I/O error" during an access

HTTP SSE how server hold client connection

3 December 2025 @ 3:33 pm

I'm using Debian 13 with Nginx 1.26.3 and SSE (Server Sent Event) and PHP. What I tried to achieve is to have many connections to clients. But I have not all the time something to sent to the clients! What I read in the ducumentation is that the server has to hold the connection, until new data available for sending. I did it in the following way: while($lastTime == $_SESSION['lastTime']{ sleep(10); } In SESSION is the lastTime stored, when the server has created new data and in $lastTime is stored, the lastTime of the last data packet the client has received. If the SESSION['lastTime'] is changing, new data are available. But it doesn't work! The loop will never end, because the PHP script can't receive new data as long the script is in the while loop. And therefore the SESSION['lastTime'] will not be updated! I was thinking that several copy of the same script can run

Can browsers bypass a proxy in Windows? [closed]

3 December 2025 @ 2:29 pm

I configured the following proxy server for http in Windows settings: http=address:2020;https=address:2020 Microsoft Edge, FireFox, and Google Chrome use the proxy server when making HTTP requests. The proxy server supports HTTP 1.1 and HTTP 2, but does not support HTTP 3 + QUIC. Is it possible that browsers will directly access the remote server via HTTP 3, bypassing the proxy server? Notes: The proxy server does not send the Alt-Svc HTTP header to the browser. The proxy server does not send HTTP 2 ALT SVC frames to the browser.

Are VPN connections unique to client applications [closed]

3 December 2025 @ 12:15 pm

Our institution provides us with a VPN service. In their instructions, they ask us to use the FortiClient application, but from my experience it is very bad (disconnects constantly, randomly, and closes instantly if when my screensaver activates). I want to use a better application, e.g. I've heard OpenVPN might be good? (I am on Mac) My question: Would it be possible to use another VPN application (I need to login and pass 2FA to access the VPN)?

Can't get iptables redirect rule working

3 December 2025 @ 9:26 am

I have a network router with this linux firmware: Linux SNR-CPE-ME2-SFP-Lite 3.4.113.185 #1 SMP Wed Mar 19 13:55:06 +05 2025 mips GNU/Linux I'm trying to set up a traffic redirection for a single client which is connected to this router. Here's what I have so far: https://pastebin.com/KWpBBaNL And here's interfaces I have: https://pastebin.com/CXuLqh29 Here's my xray config file: { "log": { "logLevel": "debug" }, "inbounds": [ { "port": 10833, "listen": "0.0.0.0", "protocol": "dokodemo-door", "settings": { "network": "tcp,udp", "followRedirect": true } } ], "outbounds": [