Mikrotik CRS312-4C+8XG-RM

I need to upgrade a few switches at several locations, what do you think about the Mikrotik CRS312-4C+8XG-RM - it's 8 ports 10G RJ45 Ethernet. Have you used this switch? Is there anything I should know about it?

https://mikrotik.com/product/crs312\_4c\_8xg\_rm#fndtn-specifications

https://redd.it/1o4vel5
@r_systemadmin

SMBServer-Operational Error 1016 on File Server 2022

Hi,





I recently migrated from a 2019 file server to a 2022 OS. Users began experiencing slowness in Excel files.



I did not use the same hostname and IP address as the old file server.



I am using a new hostname and a new IP address.



The server is running on VMware.



The Windows firewall is disabled.



Trend Micro Endpoint Security is running as AV on the server.



When I checked the event viewer on the server,

There error I'm getting on the File Server is:////////SMBServer-Operational//////





Reopen failed.



Client Name: \\\\10.10.10.3

Client Address: 10.10.10.3:61372

User Name: CONTOSO\\user

Session ID: 0xAC0074000C81

Share Name: SHARE

File Name: IT\\test.xlsx

Resume Key: {341104c5-a5d2-11f0-bbd0-38f3ab75ca9e}

Status: Object Name not found. (0xC0000034)

RKF Status: STATUS_SUCCESS (0x0)

Durable: false

Resilient: false

Persistent: false

Reason: Reconnect durable file



Guidance:



The client attempted to reopen a continuously available handle, but the attempt failed. This typically indicates a problem with the network or underlying file being re-opened.

https://redd.it/1o4taxv
@r_systemadmin

Which is more in demand, Linux or Windows sysadmin?

Asking so I know which path to go down. I like both Linux and Windows so I wouldn't mind doing either one.

https://redd.it/1o4y699
@r_systemadmin

24H2 "Windows setup cannot parse the provide command-line options"

I've got \~20 Win11 VMs that I need to manually upgrade to 24H2. On the first one the "setup.exe /auto upgrade /DynamicUpdate enable" worked just fine. On the subsequent VM, mapped to the same setup location, setup.exe gave me "Windows setup cannot parse the provide command-line options" -- even when then only remaining switch was "/auto upgrade", so I had to run setup.exe by itself.

Anyone else come across this, and know what the reason/fix is?

https://redd.it/1o5286k
@r_systemadmin

Backup NetApp environment with cold data tier

Evening everyone,

I’ve been tasked with researching backup and DR options for a our NetApp environment (a couple of Petabytes of mixed audio/video data, millions of files) and would love to hear what others are doing in production.

Our main challenge:
We need a disk-based daily backup solution that can leverage NetApp snapshots without causing cold data to move back to hot storage during backup operations. We have looked at Veeam and use it already internally. However to backup the NetApp it is very expensive. We would like to compare against other products.

Separately, we also have a requirement for a long-term tape-based archive (think multi-year retention), but that’s considered a different workflow — the primary goal right now is to find a day-to-day backup solution that works efficiently with tiered storage.

If you’re managing large NetApp volumes, I’d love to know:

What backup product(s) you’re using (and why)
How you handle cold vs. hot data tiering during backups
Whether your solution integrates cleanly with NetApp snapshot technology
Gotchas or lessons learned at this kind of scale

Thanks in advance for sharing your setups and experiences!

https://redd.it/1o535yh
@r_systemadmin

Kiosk mode in tablets

Hello everyone. I work as an IT in a medical clinic. And recently they brought around 30 Samsung tablets to work with.
My boss asked me to see if I can lock them down and show only "odoo app" that has the clinic's information system
I asked chatgpt about it and said something about kiosk mode. But i found only paid ones nothing free
Any suggestions? Or help is appreciated

https://redd.it/1o538xe
@r_systemadmin

Constant remote access problems since going hybrid

Our team has been struggling with remote access problems ever since we shifted to hybrid work. VPN keeps dropping connections, users can't reach internal apps reliably, and troubleshooting takes forever when someone's working from a coffee shop.

What are you all using to handle secure remote access that actually works consistently? Getting tired of the daily "I can't connect" tickets.

https://redd.it/1o543o0
@r_systemadmin

How do you account you on-call into the Flex Time when there is nothing done during on-call?

I have been on-call for last week. Work my usual 8-5 but also available outside of those hours with phone ringer on and able to jump on in 15 minutes or less. During the week I only spent maybe 3 hours at most doing on-call work.

The workplace has something they call Flex Time and I am salaried with expectation to be available 8-5.

In your experience how do you, if at all, count your on-call time against your actual expected work period and hours?



https://redd.it/1o567da
@r_systemadmin

Any other AEC sysadmins here?

Just joined an AEC (engineering) firm and wow..this isn’t your usual “Office Suite and printers” setup. I’m now wrangling render farms, beastly GPUs, dealing with all the Autodesk issues and workstations that I haven’t dealt with my entire career.

It’s way more work, but also kinda awesome.

Any other AEC admins out there? Do you actually enjoy the chaos too?

https://redd.it/1o56xsv
@r_systemadmin

ZIP SharePoint folder(s) and export to S3 without local download/upload?

Is there an easy way - maybe with noscripting, or Power Automate/AppFlow - to compress a folder in a SP document library and save it into an S3 bucket without having to download it locally and re-upload it?

We're running out of SP space and need to move old/unused project folders to an S3 bucket. I'm currently doing it manually - tick the folder in Web SharePoint, click Download to get the ZIP, drag-drop into S3 then delete the original folder. This works fine, except there's hundreds of folders with over 1TB of data, which with my time/WiFi speed/laptop space is not really feasible. So I need something that can do it automated in the cloud. I looked into Skyvia which we've used before, but apparently they have no SP<->S3 connectors. Any recommendations? We'd be using a rule - any subfolder in a given directory whose contents have not been modified in over a year.

https://redd.it/1o55vrb
@r_systemadmin

Stupid question: how does ad connect to entra id?

I know they sync but I've never had to do it nor on my own lab. Just curious how the syn/setup process works. Most training mentions it but dont show how it works.
I know when you setup a new dc ot has capability to sync with entra id(azure ad).

I know a stupid question but never seen a stand up done before.


https://redd.it/1o5a68r
@r_systemadmin

College folks, what sort of questions should I prepare efor?

Landed an interview for a help desk gig with a college. What do you or they expect? Just trying to prepare as i suck at interviews and i want to nail it out of 20+ candidates.
The soft skills i have down to the tee. Technical questions in flabbergasted and space out often. Not that I dont know what to dk but ky mind seems to fail explaining unless I show folks. Lol.

https://redd.it/1o5a1cy
@r_systemadmin

How to create a confined user in Ubuntu?

I have a question that looks like basic to system administration, but surprisingly I cannot find information about that.

I have a multi user system. I want to make sure that a particular user has access only to a set of resources like a set of applications.

Traditional Unix DAC permissions don’t seem to provide a simple solution to role-based access control. It seems MAC using SeLinux or AppArmor is required.

RHEL/Fedora have SeLinux with targeted policy which comes with labels for users, like, guest_u label for the context of a predefined confined user. I can create a new user and label it with guest_u. This way the user will be confined to capabilities defined by guest_u. It’s hard to cherry pick and compile new modules (guest is more like a kiosk), but at least there is something.

But I have Debian/Ubuntu. To my surprise, I found it difficult to create a user that is confined in Ubuntu. I can remove the user from the sudo group and prevent the user from running certain commands like su. I can create a group, but you don’t want to change group membership of system binaries. There is restricted bash, but it’s kind of a hack and there are escape routes. The issue is compounded by the fact that when the user runs an application, obviously there will be child processes and so, and that there are numerous entry and exit points.

I want to define a user that has access to certain folders and can run certain applications (like a browser, vscode, editors, other basic utilities) and nothing more. How could this be done?

The closest that I found was installing and configuring an obscure module called AppArmor PAM module. I might be wrong but there might be just one example in the internet on this module and almost none in Reddit. AppArmor has limited support for RBAC and that module is not well documented.

There ought to be an easy way to confine a user in Ubuntu.

https://redd.it/1o5dgfk
@r_systemadmin

Moronic Monday - October 13, 2025

Howdy, /r/sysadmin!

It's that time of the week, Moronic Monday! This is a safe (mostly) judgement-free environment for all of your questions and stories, no matter how silly you think they are. Anybody can answer questions! My name is AutoModerator and I've taken over responsibility for posting these weekly threads so you don't have to worry about anything except your comments!

https://redd.it/1o5fkua
@r_systemadmin

Another M365 Outage?

I'm not seeing any outages on my end and so far I haven't heard from any users (it IS 7am, so that's not a shock), but is anyone seeing impacts from this alert?



Users:

Users are unable to access Microsoft 365 apps.





Scope of Impact:
Impact is specific to some users who are served through the affected infrastructure, attempting to access Microsoft 365 apps.





Updates
We're continuing to review service monitoring telemetry to isolate the source of the issue and establish a fix.

* Oct 13, 2025, 6:18 AM EDT Next update by:

https://redd.it/1o5gtrv
@r_systemadmin

How to make a Disaster Recovery Plan when (almost) all services are managed by external parties?

Hello,

I have to make a Disaster Recovery Plan (DRP) for a small Logistics company, but my problem is that almost al services that are used are managed by external parties. (examples of services are like the websites that are used in the different departments in HR or finance which are mostly websites for some specific function).

Some services we have a little control in for example the Office Suite, but if we have problems with that it goes first to the IT department if they don't know an external company will fix it.

The goal of the the DRP is "What to do when (acces to) data is lost".

I don't know how I have to do this in the DRP. My current idea was to write something like "If service XYZ is not avaiable or not working correctly then contact mail@xyz.abc or phonenumber.

Also some specific cases the IT department is only allowed to contact the service, but that's for just a few services.

But this way my DRP will look like and contact list book.

https://redd.it/1o5dbrl
@r_systemadmin

So what am I? Duties and responsibility

Recently was talking with my coworkers that Systems Admin is broad but not exactly the best noscript for what I do, so what am I?



I handle/have, Domain Admin, Azure Global Admin, OneDrive/M365 Admin, Hybrid Exchange Admin, DNS, DHCP servers, Vmware ESXI admin, Hyper V, backups, Apple Business manager, Intune MDM management, 3 Data center sites, 2 hot, 1 cold, 200VM's, 1 critical zero trust site, cross-trained on access control, SIEM escalation and logging, ADFS, Azure, AD, GPO, DFS, Fileshares, OAuth, SSO, Intranet sites, manage and configure meeting room hardware, Camera surveillance administrator, tier 3 escalation, cjis certified, and other wonderful government data standards - on call and hourly exempt status (not salary) for about 70k in USA.
Been in this role about 2 years, would not quite think the word senior would be in the noscript but maybe based on the responsibilities.

https://redd.it/1o5icso
@r_systemadmin

Meraki alternatives?

So I'm about 6 months into a new gig and inherited a ton of Meraki gear across about 200 locations. Most of these locations are 5 computers or less, but all have a site-to-site back to HQ for file share access

We're moving to a model where file shares will not be needed, so we'd like to shrink our network footprint. PCs will be Entra ID joined, or we'll have a thin client connecting to Azure Virtual Desktop both of which don't need our internal network on site

I've been cloud-only the past 7 years, so the on-prem networking world has not been top of my mind. I'd like to shrink our Meraki footprint and get away from paying Cisco prices. Many of our locations will be on small business internet access from the likes of AT&T or Charter, so we'll have ISP-provided gateways that can serve DHCP and NAT, but, I also feel like having *zero* visibility or management of the network hardware might be a step too far

I use Ubiquiti at home, but not sure it's ready for the scale we need. Again, no site-to-site VPNs, except perhaps our corporate office might need a VPN to Azure

Is there a lighter weight network platform that is controllable through a single pane of glass, is cheaper that Cisco, but is reliable enough without VPNs that we can trust it across 200-odd retail like locations?

https://redd.it/1o5jxoz
@r_systemadmin

Vodafone UK Major Outage

Major Vodafone outage in the UK, started 15:00 local time. Both leased line and mobile data impacted. Spicy Monday.

Edit: leased line not leaded line, need to slow down and enjoy the downtime…

Edit2: 130K+ customers impacted, BBC: https://www.bbc.co.uk/news/articles/c5yldldx659o

https://redd.it/1o5lftf
@r_systemadmin

Cost effective cloud database location?

Hi all,

My manager wants us to move a SQL database into the cloud. The database has membership data that is archival and would only need to be accessible for 3-4 users. They access it a few times per week only to run read queries and no longer receiving updates or additions. I feel like it may still need to be some sort of hot storage tier because they access it semi frequently. I have suggested the business owners to reduce the size of the database as well since it's 1.5TB which will increase costs. We are a small/medium size non profit so looking for suggestions on the cheapest/safest way to store this in the cloud. Any suggestions are appreciated.

https://redd.it/1o5lg1s
@r_systemadmin

A little help to make the Co Pilot madness stop for a bit.

Starting in October 2025, Microsoft will begin installing the Copilot app automatically on Windows devices that have the M365 desktop apps installed.

https://lazyadmin.nl/office-365/microsoft-365-copilot-app-will-auto-install-how-to-opt-out/

https://redd.it/1o5qi1l
@r_systemadmin