[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x

Operating Systems

35K

Solutions

36K

Contributors

Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers. For large systems, the operating system makes sure that different programs and users running at the same time do not interfere with each other. The operating system is also responsible for security, ensuring that unauthorized users do not access the system. Operating systems provide a software platform on top of which other programs, called application programs, can run.

Share tech news, updates, or what's on your mind.

Sign up to Post

I've just built 3 Raspbian stretch servers. They're used for nothing but NTP and DNS and had worked perfectly under wheezy. Now I'm seeing many errors in syslog that I have no clue how to resolve - they weren't there under the old OS. How can I resolve this? The OS is up to date with apt-get dist-upgrade

I'll attach my named.conf files and a portion of syslog:

I've already disabled ipv6 in /etc/sysctl.conf
# Disable IPv6
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1

and then run sysctl -p

No effect on the issue at all.
named.conf.default-zones.txt
named.conf.local.txt
named.conf.options.txt
named.conf.txt
syslog.txt
0
HTML5 and CSS3 Fundamentals
LVL 12
HTML5 and CSS3 Fundamentals

Build a website from the ground up by first learning the fundamentals of HTML5 and CSS3, the two popular programming languages used to present content online. HTML deals with fonts, colors, graphics, and hyperlinks, while CSS describes how HTML elements are to be displayed.

Hello,

I am trying to reset the local admin password for Windows Server 2K16. The only account that has access to the desktop is a basic user account so I am unable to make any changes in the GUI (lusrmgr.msc). I tried to boot to the windows recovery prompt but I can not seem to find the drive with the local os installed. Below are the following drives that I can see in recovery cmd:

A:
D:
X:

How can I get C, or the hdd with the actual os to show? I do have a \windows\system32 folder in X but there is no utilman.exe file. This is a VMWare box if that helps

Thanks in advance!
0
I updated our 6.7 VCSA to U1 using VMware-vCenter-Server-Appliance-6.7.0.20000-10244745-patch-FP.iso

The ESXi Host is at build 10302608.

I rebooted ESXi Server and VCSA after the install.

When I login to the ESXi Host and click on VCSA (vCenter), i see the below warning:

The configured guest OS (Other 3.x Linux (64-bit)) for this virtual machine does not match the guest that is currently running (VMware Photon OS (64-bit)). You should specify the correct guest OS to allow for guest-specific optimizations.

If i login to vCenter and click on VCSA (vCenter), I do not see the warning?

What is the casue of this erroor when logging into the ESXi Host and what is required to corect it?

thanks
0
The user is required by work to have BitLocker Drive Encryption turned on.  They have a desktop computer.
Dell Inspiron 3670
Windows 10 Pro   10.0.17134  Build 17134    12 GB RAM   Windows 10 is up to date
BIOS Mode  UEFI

Every time we try and turn on BitLocker, we are unable to start BitLocker and get message  "An internal error was detected"

How can we get BitLocker installed?

Thanks.
0
With PCs on a domain it's easy. i created a GPO that redirects Documents, Desktop, Pic, etc to our corporate OneDrive folder so they automatically sync to the web. I'd like to do that with a Mac. I've done some reading and apparently i'm supposed to create a symbolic link. I'm not a Mac person so I'm not sure of the process. I used ln -s ~/Documents /~OneDrive
The end result is to redirect Documents, Pictures, Desktop to those folders in OneDrive.
0
Hello Community Expert Members

I have an "Arch'os Access 101" which I BROUGHT ABOUT 3 MONTHS AGO Has an Android OS

http://www.archos.com/gb/products/tablets/access/archos_access1013g/index.html 

The internal storage is about 16GB AND RIGTH NOW got bout 90 apps using say 85% of that storage

Got an SDHC Card about 30GB BUT cannot seem to be able to transfer/put these apps onto the SD Card lol WHY ?

Also CANNOT access my camera ! error message says "Cannot connect to camera. Please close any other app that maybe using the camera or flash" (ALL Apps are closed)

All help VALUED as always with your time and advice

Best Ever Paul M
0
Hi all, on my Mac Book Air I have Mac OS 10.14 and Mail 12.0. Since several weeks (also with old OS version), if I try to add a new mail account (with attach button new account mail), I see the message "Internet account preferences error". How can I solve the problem?

Thank you very much!
Schermata-2018-10-29-alle-08.33.02.png
Schermata-2018-10-29-alle-08.32.55.png
0
A client is building a new Desktop machine, and with the PS installed, no video is being generated, either from the mobo with no other video card installed or with the selected video card when installed.  The configuration is a Prime Z370-A mobo, a  Supernova 550 G2 Power supply and (when in place) a Radeon RX 580 Armor Mk2 8G OC display adapter.

The fans and connected drive are being powered, the VGA cables from the PS are connected to the corresponding mobo port, and power is connected to the Radeon adapter when it's installed.  With all cases, there is no video signal reaching the display. There is no OS installed, so no drivers can be installed, and since there is no video at all I cannot access the BIOS.

How can I test this out and get a video working?

Thank lots!
0
OK,

So I upgraded the BIOS and OS on a host, it's dev, and this happens about 30 seconds after it's started...

IMG_20181026_122446.jpg

Any ideas?

Thanks
Alex
0
I am trying to get OS Commerce Joli ver 2.4.0 to work with https.  Can anyone tell me what I need to change to force it to use https?

Right now I am getting errors related to mixed content, for example it is trying to load jquery using http and not https.

Thank you for any help that you can provide.
0
Why Diversity in Tech Matters
LVL 12
Why Diversity in Tech Matters

Kesha Williams, certified professional and software developer, explores the imbalance of diversity in the world of technology -- especially when it comes to hiring women. She showcases ways she's making a difference through the Colors of STEM program.

I have a physical Hyper-V machine with a hosted data center that will not allow guest vms to connect to the internet.  

As you can see from the diagram attached:
  • NIC1 is used purely from remote management
  • NIC2 is configured for the VMs to communicate with the physical network and Internet
  • The VMs on the private network works great of course
  • Unfortunately the hosting company that we have the Hyper-V host at says they don't know how to fix this
  • I suspect they are blocking traffic somehow
  • Strange issue is that allow management OS to share network adapter, all access to the server is lost for RDP, we have to disable this feature.

I have other Systems, albeit not in a hosted datacenter that works just fine.

The Hosting company's tech support is "stumped", to say the least.

Has anyone encountered this with Hyper-V?

Thanks!

Hyper-V
0
I have installed Zinio Reader 4 on Mac OS High Sierra 10.13.6

I have purchased a subscription to Mac Life via PayPal, for which I have a receipt

I am unable to read purchased Mac Life copies as none are in my Zinio Library

How to get my existing Zinio purchases into my Mac OS computer (Zinio Reader 4)  Library
0
Which tools do you use for security auditing of windows servers (by which I mean checking the configuration aligns with best practice and is free from administrative/configuration based vulnerabilities). Microsoft baseline security analyser seems to of been retjred and not supported on newer OS. So gauging what tools / scripts etc are common in 2018 would be interesting. I would have thought powershell scripts could replace what MBSA used to check for but couldnt find much out there.
0
We currently have our Virtual Center running on 2008 R2 and would like to move it to a server running either 2012 R2 or 2016.
Is there a way to migrate the Vctr from the 2008 R2 server over to another VM to keep all of the data together so that the Vctr will now come up on the new vm with the newer OS?
0
I have a domain with an 03 server and 2012 (r2 I think) server.  The 2012 box is GC and has all the roles, but the 2k3 server is still a member of the domain etc - the domain function level is obv 2003.  Glad the 03 box wasn't decommissioned yet as the 2012 box got hit with ransomware.  Unfortunately their usb backup drive was also encrypted and they had no offsite setup.  I need to reload the OS as I can't get SQL running again - cant uninstall it, cant install it, cant repair...its all kind of jacked.  Whats the best process to get it reloaded and back as the GC of the domain? Do I need to assign the roles to the 03 box first, then dcpromo, then reinstall OS and probably with a different name then before for good measure?
Thanks
1
Windows 2016 Standard as SQL Standard Host.

Hi Guys.
Since Windows 2016 is core based OS as long as SQL 2017, now I'm facing problem.
I need to build new SQL for my company and I know I need to buy Windows 2016 OS that's going to cost me around $1,100.00 and it will cover up to 16 cores.
Now I must install SQL Standard on it and since I want to buy Dell 2x Quad core server (If I don't want to worry about number of connections) I know I must purchase 4 SQL Standard Core Based licenses ( 1 license covers 2 cores), and it will cost a lot, approximately $14K, but what about User Call licenses for Windows OS ?
Do I need to buy separate Call for Windows OS ?
I think I'll have around 100 connection to SQL but is this connection are treated as user access and require Windows 2016 User CAL's ?

I'm not sure, so maybe someone will have more experience with SQL installation.
0
Exchange server sizing.

I tried using the exchange calculator and I am not convinced of the output.

can I get help in sizing exchange for the following

users: 2700

databases: 2 mailbox databases and I archive database
exchange version: 2016 standard
mail flow: very low can use defaults
mailbox limits: 500 mb for 1200 users in db 1, archive mailbox 1 gb
mailbox limit: 1 gb for 1500 users in db 2, archive mailbox 1 gb

exchange mailbox servers: 2

CPU Cores:?
Memory:?

c: for os
d:\paging file
e:\installation files

if a filled in calculator is attached it will be great
f: databases
g:\logs
h: recovery volume on one server

help appreciated
0
new OS + drivers windows 10 64 bit does not boot anymore from Samsung 850 EVO SSD " insert boot device and hit a key"
latest BIOS version

settings tried :
AHCI/IDE
windows boot manager / samsung
in CSM: UefiLegacy
other Sata slotand cable tested

this disk boots normally from Asus board H97M-E in AHCI mode

suggestions and solutions welcome
0
A client is saying they have malware on their Mac and want to reinstall the OS.  I've read through this a bit https://support.apple.com/en-us/HT208496 and it doesn't seem to say anything about malware issues.

My question is: Is it better to reinstall Mac OS to clear up malware issues or erase then restore to factory settings?

Are there other things I should be aware of when performing such a task for this macbook?
0
Fundamentals of JavaScript
LVL 12
Fundamentals of JavaScript

Learn the fundamentals of the popular programming language JavaScript so that you can explore the realm of web development.

How do I remoive AD from Server 2012 R2 Esentials server.

I spun up a VM of this OS to figure out how to do it, and while MS support say yes, I am hitting the wall.

Running DCPROMO says - use server manager to remove AD Services
Server Manager > Roles and Features > remove AD - reports cert services needs to be removed
Server Manager > Roles and Features > remove certficate services reports an error, but there isnt any error description.
0
Is there a command that I can run in our Microsoft environment to tell which OS is running on all of our servers and be able to print it out?
0
All Windows 7 is stuck on welcome screen. No matter what ID I use to login and it just stays there. Any suggestions? I failed to mention this is a virtual machine.
0
Hi, I recently took over a network with Mac laptops running Mac OS Yosemite, the laptops were part of a Windows Domain had have some administrative lock down settings. We were provided admin privileges so we removed them from the Domain, although we are the computer admins many settings in system preferences are locked out. It seems to me the previous tech support company used some type of lock down policy to prevent even local administrators to make any changes.  Unfortunately  the previous company won't cooperate passing down info other than providing the admin password.

Does anyone know of a way to "unlock" the settings in system preferences?
0
Dear EE,

I have a situation here and need your kind help.

1)  ONE DB SERVER with following details:
OS : MS Windows 2012 R2 Standard Edition 64 Bit
DATABASE : MS SQL 2014
TLS Settings : TLS 1.0 DISABLED, TLS 1.1 ENABLED, TLS 1.2 ENABLED



2)  ONE APP SERVER with following details:
OS : MS Windows 2012 R2 Standard Edition 64 Bit
TLS Settings : TLS 1.0 DISABLED, TLS 1.1 ENABLED, TLS 1.2 ENABLED


I am unable to connect ODBC 64 bit connection to DB from APP.

Thanks
0
Windows laptop versus MacBook?

I am a Mac user and love certain features of the Mac. But I also love the incredibly low prices of a Windows Acer laptop.

There is one KEY FEATURE of the Mac that would make the high cost worth me staying on the Mac platform. Key Word Search!

When I try to search on Windows, you better hurry up and wait. When I use Finder, I nearly instantly get a list of files with the search word found in the filename or inside the file (GREP).

I consider this a life-saving feature that lets me find long-lost files, often when I have no idea (or interest in knowing) the physical location of the file.

Can Windows match this awesome power the Mac OS gives me to peruse my files?

Thanks.
0

Operating Systems

35K

Solutions

36K

Contributors

Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers. For large systems, the operating system makes sure that different programs and users running at the same time do not interfere with each other. The operating system is also responsible for security, ensuring that unauthorized users do not access the system. Operating systems provide a software platform on top of which other programs, called application programs, can run.