1,772 questions with Windows Server Security tags

Sort by: Updated
Updated Created Answers
4 answers

4732 - "A member was added to a security-enabled local group" - system account as subject?

Hello, Windows security event log 4732: I see log entry's where it's clear 'user A' added 'user B' to 'group C'.... however I also see entries where instead of it being a user that is doing the adding to the group, it is 'nt authority\system', the…

Active Directory
Active Directory
A set of directory-based technologies included in Windows Server.
6,131 questions
Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
1,772 questions
asked 2020-08-27T19:29:27.52+00:00
djc 1 Reputation point
commented 2020-09-04T03:16:45.98+00:00
Hannah Xiong 6,251 Reputation points
1 answer

Uninstall AD Certificate Services, then immediately reinstall AD CS same server?

Hi, folks. We have a domain controller with AD Certificate Services installed as our root CA, and I'd like to demote it from being a DC which requires first uninstalling AD CS. Can we backup CA private key and database, uninstall AD CS role, demote as…

Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
1,772 questions
asked 2020-08-29T17:18:23.23+00:00
Starlessblack 1 Reputation point
commented 2020-09-04T03:13:21.31+00:00
Hannah Xiong 6,251 Reputation points
1 answer

Changing Windows PKI to issue SHA384 RSA 3072 certificates

Hi, We currently have a PKI infrastructure that's configured to generate SHA256 RSA 2048 certificates. We need to generate a SHA384 RSA 3072 certificate for one of our appliances. I believe these would be our options: 1.) Migrate the key size of the…

Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
1,772 questions
asked 2020-08-26T00:26:06.807+00:00
Edward Narayan 1 Reputation point
commented 2020-09-03T07:52:32.607+00:00
Daisy Zhou 20,556 Reputation points Microsoft Vendor
4 answers One of the answers was accepted by the question author.

Computer Certificate autoenrollment not working

Hi, everyone! I have a problem with computer certificate autoenrollment and I've done a lot of search and troubleshooting and seems I'm stuck. I'm in an AD environment with internal PKI infrastructure, root ca is offline and there are two intermediate…

Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
1,772 questions
asked 2020-09-02T07:41:45.187+00:00
Blitz 21 Reputation points
commented 2020-09-03T07:34:51.62+00:00
Daisy Zhou 20,556 Reputation points Microsoft Vendor
2 answers

Getting error while installing Enterprise root Certificate Authority role in Child Domain

Error: Active Directory Certificate Services setup failed with the following error: The security ID structure is invalid. 0x80070539 (WIN32: 1337 ERROR_INVALID_SID) Environment: 1 Parent root domain (ABC.LOCAL) and 1 CHILD Domain (CHILD.ABC.LOCAL).…

Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
1,772 questions
asked 2020-08-23T18:45:54.89+00:00
Priyavert Sharma 136 Reputation points
commented 2020-09-02T02:10:22.643+00:00
Daisy Zhou 20,556 Reputation points Microsoft Vendor
1 answer

Troubleshooting Security events in Server 2012

I am seeing alot of activity in the events log associated with the MSOL_xxxxx account especially off hours. Is this normal or should I be looking for a cause? The event logs samples are below. Security: A Kerberos authentication ticket (TGT) was…

Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
1,772 questions
asked 2020-08-27T11:24:51.947+00:00
Mike Garczynski 1 Reputation point
commented 2020-09-02T01:46:29.867+00:00
Hannah Xiong 6,251 Reputation points
2 answers One of the answers was accepted by the question author.

How to trigger an event log entry when ADCS Role Separation is turned on or off

This article indicates that if you have the CA\AuditFilter property set t the max value (127) an event log entry would be triggered when we turn Role Separation on or off. The event ID should be 801: …

Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
1,772 questions
asked 2020-08-27T14:56:19.043+00:00
Mike Bruno 136 Reputation points
commented 2020-09-01T15:43:14.903+00:00
Mike Bruno 136 Reputation points
1 answer

MSDN Forum: MS PKI Certificate based authentication on network access control device.

I have a 2 tier PKI infrastructure. With my SUB CA issuing certificates to machines(win 10) and user's through group policy. We are testing certificate based authentication with the NAC(aruba clearpass).The machine has user and the client certificate, we…

Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
1,772 questions
asked 2020-08-29T11:20:56.72+00:00
Shardul Rane 1 Reputation point
answered 2020-08-31T08:41:55.543+00:00
Candy Luo 12,686 Reputation points Microsoft Vendor
1 answer

Offline ROOT CA - Can I simply roll out a new one to use for Subordinate request signing?

Hi All, After running low on resources in one of our VM environments a script was run to identify all offline VMs and delete them. This deleted my "Offline ROOT CA" servers in that environment. My basic understanding of the two tier online…

Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
1,772 questions
asked 2020-08-25T12:06:13.59+00:00
Heath Durrett 486 Reputation points
commented 2020-08-31T06:36:34.877+00:00
Hannah Xiong 6,251 Reputation points
4 answers

Hyper-V Extended ACL - Can ICMP be stateful or not?

Can you add stateful ACL rules (on a Hyper-V Virtual Switch) on the ICMP protocol? If not, this leaves you to either open ICMP to everyone or close ICMP to everyone including the VM itself. Neither is secure or practical for such an important and…

Windows Server 2019
Windows Server 2019
A Microsoft server operating system that supports enterprise-level management updated to data storage.
3,561 questions
Hyper-V
Hyper-V
A Windows technology providing a hypervisor-based virtualization solution enabling customers to consolidate workloads onto a single server.
2,607 questions
Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
1,772 questions
asked 2020-07-27T19:18:48.843+00:00
A-Cloud 1 Reputation point
commented 2020-08-27T17:23:26.58+00:00
A-Cloud 1 Reputation point
1 answer One of the answers was accepted by the question author.

How to renew computer serfificates in AD gp based system before term ends?

Hello. We have internal CA server and AD based distibution of certificates to computers by group policy. I'ts all good and fine, but now we had to edit computer certificate template for certificate based autentication to network with radius. (yes…

Windows
Windows
A family of Microsoft operating systems that run across personal computers, tablets, laptops, phones, internet of things devices, self-contained mixed reality headsets, large collaboration screens, and other devices.
4,992 questions
Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
1,772 questions
asked 2020-08-25T09:48:15.613+00:00
Matti Tauriainen 21 Reputation points
commented 2020-08-26T07:22:32.93+00:00
Matti Tauriainen 21 Reputation points
4 answers

Where can I download security patch for MS11-025, MS11-049 etc.?

My corporate security found some vulnerabilities MS11-025 and MS11-049 etc., and I found them in security bulletin, but there is no where in the bulletin I can find download link. So, where can I find those hot fix download?

Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
1,772 questions
asked 2020-08-13T20:08:27.643+00:00
Gao, Leo (MGCS) 1 Reputation point
answered 2020-08-24T08:17:15.217+00:00
Vicky Wang 2,646 Reputation points
3 answers

certreq -Enroll

Hello I tried to use the below command in order to renew certificate but i have an error (The request contains no certificate template information) certreq -Enroll -cert certificateSerialNumber -machine Renew How can i solve this issue?

Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
1,772 questions
asked 2020-08-17T16:42:14.11+00:00
Moonlight 176 Reputation points
commented 2020-08-24T06:06:28.61+00:00
Daisy Zhou 20,556 Reputation points Microsoft Vendor
4 answers

Signing an externally generated CSR with AD CS standalone

Hi, I am currently facing a quite blocking issue regarding the signature of a CSR emitted by a non-Microsoft PKI (EJBCA Community in my case) with a Root CA on AD CS (standalone version). What we want to do is to create a Sub-CA in EJBCA (the client…

Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
1,772 questions
asked 2020-08-11T14:59:21.69+00:00
Arnaud_Synetis 1 Reputation point
answered 2020-08-24T04:47:09.31+00:00
Karan SACHDEVA 1 Reputation point
1 answer

Computer administrator

I am trying to load some older programs, but when they start to set up a warning message pops up, this installation was stopped by the administrator contact your administrator. I am the administrator and this is my personal computer so what is happening…

Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
1,772 questions
asked 2020-08-18T09:26:00.467+00:00
Keith Tillen 1 Reputation point
commented 2020-08-24T02:03:39.747+00:00
Fan Fan 15,311 Reputation points Microsoft Vendor
1 answer

Transitive Network Logon attack - Account lockout

Hi all, I see a transitive Network Logon attack on my AD netlogon logs, however, the computer name that attacks are coming from not pingable or searchable internally. Is there any way to find this puzzle? Thanks, Lrok

Active Directory
Active Directory
A set of directory-based technologies included in Windows Server.
6,131 questions
Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
1,772 questions
asked 2020-08-20T01:25:45.977+00:00
Lrok 1 Reputation point
commented 2020-08-24T01:24:05.03+00:00
Fan Fan 15,311 Reputation points Microsoft Vendor
2 answers One of the answers was accepted by the question author.

Biometrics & Facial Recognition in the domain

I would like to use both username & password. But only after the PC verifies the facial identity to the username. I hope that makes sense? This i a domain environment and it would add security to our domain. The problem I run into in my career is…

Active Directory
Active Directory
A set of directory-based technologies included in Windows Server.
6,131 questions
Windows 10 Security
Windows 10 Security
Windows 10: A Microsoft operating system that runs on personal computers and tablets.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
2,815 questions
Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
1,772 questions
asked 2020-08-19T17:23:44.697+00:00
Vaughn Minter 21 Reputation points
commented 2020-08-21T06:37:21.13+00:00
Daisy Zhou 20,556 Reputation points Microsoft Vendor
2 answers One of the answers was accepted by the question author.

WS2016 AD DC, unlock Windows session with smartcard, '... credentials could not be verified'

Hello, Scenario: ---------- Try open a Windows session with a smartcard on computer joined to a 2016 AD domain Technology: ------------ Involves a third party CSP library for the smartcard to work. the smartcard contains the…

Active Directory
Active Directory
A set of directory-based technologies included in Windows Server.
6,131 questions
Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
1,772 questions
asked 2020-08-15T12:28:20.177+00:00
Bertrand PERRET 61 Reputation points
commented 2020-08-20T07:42:46.8+00:00
Daisy Zhou 20,556 Reputation points Microsoft Vendor
2 answers

SHA 1 to SHA 256

Hi to all Which will be steps to change SHA 1 to SHA 256 in CA Windows 2012 r2?

Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
1,772 questions
asked 2020-08-14T02:55:54.93+00:00
ManuelVallejo 36 Reputation points
commented 2020-08-20T01:50:46.043+00:00
Hannah Xiong 6,251 Reputation points
5 answers

Hyper-V Live Migration using Kerberos from 2012 R2 to 2019 fails with error 0x80090322

Hello! I have a Windows Server 2012 R2 Hyper-V Failover Cluster and I'm trying to Live Migrate VM's to a Windows Server 2019 Hyper-V Failover Cluster. When I try to Live Migrate a non-clustered VM from one of the Windows Server 2012 R2 Hosts to one of…

Windows Server 2019
Windows Server 2019
A Microsoft server operating system that supports enterprise-level management updated to data storage.
3,561 questions
Hyper-V
Hyper-V
A Windows technology providing a hypervisor-based virtualization solution enabling customers to consolidate workloads onto a single server.
2,607 questions
Windows Server Security
Windows Server Security
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Security: The precautions taken to guard against crime, attack, sabotage, espionage, or another threat.
1,772 questions
asked 2020-08-13T17:33:28.203+00:00
Dave Baddorf 101 Reputation points
answered 2020-08-19T19:08:18.163+00:00
Dave Baddorf 101 Reputation points