Systems Administration

Windows 10 Mirror Raid

Sysadmin - 8 hours 56 min ago

Hi all, hoping for a bit of help.

I had a mirrored raid on my system a while ago and ran into issues with my PSU. While I was on a temporary PSU I did not have enough cables to keep both disks in (the temp one was old), and the information on the RAID is backup mostly so I was not too worried...These are data disks, Windows runs from an SSD.

Today after fixing everything up I've noticed the second drive was so outdated it was read as foreign so I couldn't re-add it to the array. After fat-fingering a load of settings in disk management (teaches me right) I now somehow have a simple dynamic volume with all my information on it (the running disk), and the second disk as a RAW / unformatted disk.

Try as I might I can't get them back into mirrored RAID form. I do have the two disks, but I don't have a third (so I can't wipe the current ones). Can anyone rescue me? I am using Disk Management for mirroring not storage spaces.

submitted by /u/Anaksanamune
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robocopy mon

Sysadmin - 8 hours 58 min ago

So this is related to another thread. I have robocopy running and just reran it again. I am finding that although the second time around that it only copies new files which is fine but it still takes a long time to scan for the changes because it needs to traverse all the tiny small files. Does the /mon option prevent this? Is there a way for it to get updates from the ntfs driver or some way to get notified of a change and just copy that file without having to traverse the whole tree to scan for new files? I want it to run continuously and copy new file but without having to scan the whole tree.

submitted by /u/redhat2880
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Command Line - 9 hours 2 min ago

I've been trying out Lynx these past few days. It works really well for most of the stuff I want to do. The only issues I'm having so far:

  • I can't upvote or downvote on reddit, because Lynx doesn't have Javascript. I would like to be able to do that, but I'm not sure I want to install Reddit Terminal Viewer just for that. Is there a workaround?

  • For a lot of websites I have to scroll through ten pages of stuff before I can get to the content. Is there a way to script with Lynx so that I can tell it not to display stuff like this?

submitted by /u/NyquilPepsi
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Nest reveals the first truly connected home

The Register - 9 hours 45 min ago
Begun, the battle of the home eco-systems has

Comment After years of hype, the connected home is finally here thanks to a range of new products available this week from Google-owned Nest.…

Network Driver removing itself (Domain with several workstations)

Sysadmin - 10 hours 27 min ago

I have seen a weird issue the past week, It started with one pc, where the network driver was gone, and I had to search the C drive and install it manually. Then the next day another one. Today two more. Any ideas what could be happening?

submitted by /u/AHarmlessFly
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Weekend Reading: All Things Bash

Linux Journal - 10 hours 30 min ago
Bash is a shell and command language. It is distributed widely as the default login shell for most Linux distributions. We've rounded up some of the most popular Bash-related articles for your weekend reading.


Emotet Malware

Sysadmin - 10 hours 57 min ago

Have any of you encountered this? Is there any hope short of nuking from orbit?

Any advice greatly appreciated.

submitted by /u/corrigun
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Pushover or slack for notification?

Sysadmin - 11 hours 3 min ago

Dear All!

I can not decide between these two. I would like to get notification and later i would send commands back to do some action....

Please help:)

submitted by /u/Tommas84
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"Shut up old man. Stick to writing kiddie code."

Sysadmin - 11 hours 21 min ago

Yesterday, I had what might be the dumbest conversation ever with another "professional software developer". Late 20s, early 30s, so I started programming literally before he was born. I never saw the actual code; we just talked about it.

The root cause of his problem seemed to be that taking 80% of 8 hours was more than 10 hours. But I don't think he realized his answer was more than 10 hours.

Two observations I expected would help him, but didn't. (Oh, foolish optimism.)

  • 80% is less than 100%. So 80% of 8 hours has to be less than 8 hours. ("No, that's not how this kind of mathematics works at all.")

  • Convert 8 hours to minutes. Take 80% of that. Convert back to hours. ("You can't just change units like that. That's like changing yards to ounces.")

That's when the "Shut up old man. Stick to writing kiddie code." comment came out.

I think the conversation actually made me dumber.

I suggested he ask on StackOverflow. I'm going to keep my eyes open.

submitted by /u/AQuietMan
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Machines making music, translating Chinese, self-driving trucks, and more

The Register - 12 hours 58 min ago
Developments for our future overlords

Roundup Welcome to this week's AI roundup. We have news on a machine learning model used by Google to make music that doesn't sound completely bad, improved translation between English and Chinese from Microsoft, and a new test bed for Waymo's self-driving trucks.…

Which hybrid SAN should I buy?

Sysadmin - 14 hours 1 min ago

We're doing a virtual environment refresh, storage hosts, the lot.

We have a bunch of file server data which doesn't get accessed all that often and we have our core business apps which we'd like more performance for than we get now on our old spinning disk array.

Nimble have come back with a starting suggestion of a CS1000 with 21x1Tb disks + 3x480GB SSD which is pretty anaemic and is still @ $45k and that's for pretty much their entry level model which worries me when it has to last 3-4 years.

Tegile are proposing a T4200 with an additional shelf to give around 100TB effective assuming a minimum 2:1 with compression and dedupe, that's with 11TB of SSD cache and initial pricing of around $75k.

Tegile are leading with NFS which I mention for info.

Before anyone points out that the Nimble is much smaller I know, that pricing is from "Give me a quote so I have some kind of starting from number to work with" and after that HPE have been a nightmare to even get a reply out of.

DR is part of this so we're looking at getting two and replicating between them over 10GbE.

I got some real rough pricing on Unity and Pure and Pure aren't viable and the Unity pitch almost had me asleep.

I haven't bothered with Netapp or any other names as we're in a position where an AFA isn't needed and we can't afford it for our capacity and hybrid always seems to lead me back to Nimble and Tegile.

This is pretty much my final sanity check that there isn't some other product out there as I'll need to move to a POC and commercials soon and right now that's looking like it'll be with Tegile.

Is there anyone else I'm overlooking?

submitted by /u/bad_sysadmin
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Does Windows 7 store PUBLIC IP in registry or anywhere else?

Sysadmin - 14 hours 29 min ago

Long story short: Creating a VM image and installing Win 7 on it with a suite of proprietary software for a customer. The Win 7 VM will be connected to the internet while I work on it from my local NAT connection. I will then transfer this image to my customer to use.

This is a private transactions and for privacy and security I'd like to keep my IP private from the customer.


1) Does Windows 7 in anyway or any browsers (Firefox) store my public IP or cache it? For example in some sort of cache or in the registry?

I am aware of: "ipconfig /all" , but this only displays my PRIVATE IP's which are irrelevant.

INB4 "If you cant trust someone with your IP you shouldn't be doing business"

submitted by /u/IRSplsstop
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Do I really need to take physics for my IB diploma program in order to major in computer science?

Right, so I'm currently learning in a British school that is a hybrid of IGCSE and IB system. The IB system comes after IGCSE and is what grants the student a diploma upon their leave of school and take whatever path they want to take whether it's going to universities or starting out life immediately.

Before we start off our IB course, we are allowed to choose which subjects we take to learn - and depending on our choices. We will spend the last 2 years in our school learning nothing, but only the subjects that we choose from. So you have quite a high chance of avoiding the subjects you hate in school if you were to take IB program.

The problem in here is that, upon the recommended subject choices on the list. "Physics" was listed in there. I know that in order to major in computer science, I do not need to actually learn computer science in my school, since universities will start to teach students starting from scratch anyways. Upon these requirements, there is Math - which I can handle quite easily. But the problem is Physics.

Physics is my most weakest science out of the three science I have, it is probably the most difficult field to understand and one probably the hardest as well - I don't know, but this is how it is to me. My question is, do I really need to major in physics in order to gain entry in Computer Science courses?

submitted by /u/blueboy90780
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AMD security flaw saga, browsers broken, Lamo dead at 37, and more

The Register - 14 hours 41 min ago
It's the week in security

Roundup The lingering fallout of security flaws in AMD processor chipsets has dominated the news this week, and it ain't over yet.…

linkedin automation tools | linkedin data extractor

Tasker: Total Automation for Android - 16 hours 41 min ago

Bol7 Linkedin data extractor, one can collect the right set of information which can help companies get the network infrastructure of their rival companies & getting their information in an organized format can be highly valuable for your business.

submitted by /u/Ackrayquaenddan
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Linux Samba share for cross-platform environment, W10 can't connect.

Sysadmin - 16 hours 42 min ago


I'm currently in the process of setting up a Samba share for use in a cross-platform environment (Linux, Windows 10, macOS). So far I've set up the Samba share on a RHEL 7 box pretty exactly how I did in my test environment beforehand, the only difference is that on top of the OS level firewall that I manage, I get to deal with a managed VLAN firewall from the university. All I have to do is request which ports are opened and they do it for me. Earlier today I requested 137+138/udp and 139/tcp to be opened for Samba to be accessible on the node. I've added these port (plus the samba service) to FirewallD on my end. So far only my Linux nodes and macOS nodes are capable of accessing the share. I've tested on my Windows 10 laptop as well as a Windows 10 VM and both are completely incapable of connecting (regardless of SMB1/2/3). A university run VM system utilizing Windows 7 has no problem accessing the share. The node itself is not pingable, unless using nmap and specifiying a port.

I ran an nMap of the node to check whether or not everything went through and if there was something Windows specific that could be and the following was the result.

> nmap -p 137-139/445 -sU -sT myserver PORT STATE SERVICE 137/tcp filtered netbios-ns 138/tcp filtered netbios-dgm 139/tcp open netbios-ssn 445/tcp filtered microsoft-ds 137/udp closed netbios-ns 138/udp closed netbios-dgm 139/udp filtered netbios-ssn 445/udp open|filtered microsoft-ds

Despite the 'necessary' ports (137+138/udp) seeming closed, the other two OS's handle the connection totally fine. Is there something up with Windows 10 when it comes to connecting with Samba? As a side note, the RHEL box itself is managed through AD/Kerberos (afaik) but this share and the users/groups I create are not. The systems connecting to it for the most part (nearly all Windows/macOS systems) will not be part of the university domain.

My smb.conf (I could probably clean up some of the global params):

# Samba Version = 4.6.2 [global] # Formerly SAMBA, but changed for testing. No effect workgroup = WORKGROUP security = user encrypt passwords = yes map to guest = bad user passdb backend = tdbsam printing = cups printcap name = cups load printers = yes cups options = raw hosts allow = [redacted list, space deliminated] [cgctools] comment = Share Comment path = /path/to/share writable = yes browsable = yes valid users = <@usergroup> force user = <masteruser> force group = <usergroup> create mask = 2774 force create mode = 2774 directory mask = 2774 force directory mode = 2774

Any help or direction on this issue would be appreciated. Windows environments are not my forte, and this wasn't occurring when I tested this locally with VM's and the systems in my possession.

submitted by /u/omento
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Thanks for suggesting Snipe-IT

Sysadmin - 17 hours 48 sec ago

It just so happened that the IT Manager rolled in 2 days prior to someone posting about this program, and asked us to start inventory on everything we have and establish a system (Excel spreadsheet generally). I saw the post about Snipe-IT and figured I'd throw my hat into the ring and see how it works.

The demo looked nice, all the elements I need, assets, licenses, and user management.

I spun up a VM, installed WAMP, and refreshed my brain on all that (probably been 5+ years since I touched any of them) and then fought through the install.

It was all worth the headache. Great product, highly recommend it, and almost stunned it has no cost for how feature rich and clean it is.

submitted by /u/Ohmahtree
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Shouting at disks

Sysadmin - 17 hours 28 min ago

Apparently shouting at JBODs decrease their performance. I wonder how they figured that out.

submitted by /u/toddjcrane
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