Unanswered Questions
78,240 questions with no upvoted or accepted answers
36
votes
1
answer
4k
views
Unexpected and unexplained slow (and unusual) memory performance with Xeon Skylake SMP
We've been testing a server using 2x Xeon Gold 6154 CPUs with a Supermicro X11DPH-I motherboard, and 96GB RAM, and found some very strange performance issues surrounding memory when compared to ...
CommunityBot
- 1
17
votes
0
answers
11k
views
Restoring data after zfs destroy
On Debian 8.7 I had a zfs pool.
(obviously using ZFS on Linux, not Oracle or Solaris zfs)
It was needed to extend ZFS pool from mirror on 2 disks to raidz on 4 disks.
I did backup (one copy of data - ...
- 182
16
votes
1
answer
2k
views
Using defaultAuthenticationType with PowerShell Web Access
PowerShell web access lets you choose the authentication type. By default, it uses a value of Default, which ends up being Negotiate. I have set up CredSSP to allow logging into the PSWA server itself ...
CommunityBot
- 1
14
votes
1
answer
20k
views
Parallel Redo Is Shutdown
When looking in Windows event logs, i'm seeing the following messages on an almost continuous basis -
Starting up database 'Database'.
Parallel redo is started for database 'Database' with worker ...
- 31
13
votes
4
answers
2k
views
Freebsd change default Internet channel route
I have two Internet channel and Gateway on freebsd. When I switch channel with the command route change default chan2, the command netstat -nr shows changed default route. But traceroute shows that ...
13
votes
1
answer
7k
views
Change Envelope From to match From header in Postfix
I am using Postfix as a gateway for my domain and need it to change or rewrite the Envelope From address to match the From header. For example, the From: header is "[email protected]" and the Envelope ...
CommunityBot
- 1
12
votes
0
answers
579
views
How much does FreeBSD accept_filter actually improve performance in a modern world?
I recently learned about FreeBSD's accept_filter socket option which can allow a worker process to avoid context switching by, for example, waiting until a full HTTP request is received with accf_http:...
- 9,198
11
votes
0
answers
6k
views
How can a Cognito user initialize TOTP on first login when MFA is required?
I am setting up Amazon Cognito for authentication to use a Kibana instance. I only permit administrators to create users, and I permit only the Cognito User Pool identity provider. When creating the ...
- 1
11
votes
2
answers
2k
views
Disable file locks on a read-only Windows File Share
Case
On a Windows Server (2012R2 or 2016), I want to configure a file share offering a following functionality
some users, publishers group, have a write access to the share; these users are ...
- 1,443
11
votes
1
answer
4k
views
haproxy CD flags with browser, not with curl
Issuing the same url request, from the same workstation to the same haproxy server:
with a browser (tried Chrome and Firefox): haproxy log shows CD flags
with curl: haproxy log shows --
Both ...
CommunityBot
- 1
11
votes
3
answers
1k
views
Unable to bind OSX 10.9 to Active Directory 2008
I am struggling to bind OSX 10.9 to a 2008 r2 Active Directory. I can join the domain fine when I boot into Windows from the same machine. From OSX I can find the domain controller successfully and ...
- 680
11
votes
1
answer
5k
views
certutil -ping fails with 30 seconds timeout - what to do?
The certificate store on my Win7 box is constantly hanging. Observe:
C:\>1.cmd
C:\>certutil -? | findstr /i ping
-ping -- Ping Active Directory Certificate Services Request interface
...
CommunityBot
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11
votes
2
answers
811
views
Firefox dynamic default preference configuration
My users are all on NFS home directories and with hundreds of users all using Firefox it generates a bit of traffic reading/writing to the disk cache. As a result, I'd like to move the default ...
- 47
10
votes
0
answers
3k
views
Docker container crashing ubuntu host
Very unexpected, but briefly if i run a docker container host becomes unresponsive, no in/out, can't ping it, only hard reboot works.
DMESG, sys and kernel logs doesn't show anything obvious
...
CommunityBot
- 1
10
votes
2
answers
7k
views
Changing physical path on IIS through appcmd isn't activated
We have come across an issue on IIS 7.5 where we have a simple deploy system which consists of the following:
Create a zip-file of new webroot, consisting of three folders:
Api
Site
Manager
This is ...
CommunityBot
- 1
10
votes
1
answer
2k
views
Troubleshooting Redmine (Bitnami Stack) performance
I've got a Redmine instance (Bitnami Stack) that's unusually slow. Because I'm just trying to get to the bottom of this, I have some theories which I'd like to discuss here. So, if anybody has any ...
CommunityBot
- 1
10
votes
2
answers
10k
views
IIS aborts request thread with Win32 status 995
We have a site where we have trouble on our production server, but not on my dev machine with request beeing aborted (hence, zero response).
It fails after exactly 1:19 minutes each time, and the ...
CommunityBot
- 1
10
votes
2
answers
12k
views
Create user in gitlab without e-mail?
I'm testing out omnibus gitlab on a local VM. After disabling anonymous signup, I tried adding a new user via the /admin/users/new page.
It requires I associate an e-mail with the new user account, ...
CommunityBot
- 1
10
votes
1
answer
3k
views
Is it possible to do multiseat the systemd way with one graphic card / two heads?
I would like to setup a multi-seat configuration using Ubuntu Xenial 16.04.
After some researches, it seems the way to do now is by systemd through "loginctl" calls. (saw here for example).
Before ...
9
votes
0
answers
2k
views
connect to tightVNC in a windows container
There are plenty of resources online about using VNC with a linux container, but none that I can find for windows containers, so I thought I'd give it a crack.
I can get the tightVNC server to start (...
- 1
9
votes
1
answer
15k
views
How to export Cisco AnyConnect preferences and certificates to another PC
I have two computers (PC and MAC) connected to different organization VPNs. I want to be able to connect from MAC to the same VPNs set on PC. So I need to export VPN list and certificates, etc to my ...
CommunityBot
- 1
9
votes
0
answers
10k
views
LDAP: creating a bind user with limited privileges
I need to bind to an OpenLDAP server to authenticate users, but I don't want this low-privileged or "delegated administrator" to be able to see more attributes than strictly necessary.
How do I ...
- 2,879
9
votes
1
answer
8k
views
cups: HTTP_STATE_WAITING Closing for error 32 (Broken pipe)
On a Debian stable I've a network printer connected and shared (Epson hp1536dnf):
socket://ip:9100
from Linux clients I've:
ipp://IP/printers/printer1
The logs of the server are:
D [01/Sep/2017:18:...
CommunityBot
- 1
9
votes
0
answers
2k
views
CentOS 6 local update repository and security updates
I know that official CentOS 6 (even 7) update repositories does not provide security information. The consequence is thatyum-plugin-security plugin and yum check-update --security command does not ...
CommunityBot
- 1
9
votes
0
answers
618
views
Can Asterisk's phoneprov module be used securely?
I'm using Asterisk 13.1.0 as packaged by Ubuntu Server 16.04 to run a pure-VoIP phone system. Asterisk has a module – phoneprov – that allows it to template out configuration files for ...
- 113
9
votes
4
answers
592
views
Redundant Power Supply Sloshing (If sloshing is the right word)
I have a Supermicro Redundant Power Supply with two units in it. I also have two UPS units, one for each of the Power Supplys. I was watching the LCD on the UPSs for the watt usage. The total watts ...
- 49
9
votes
1
answer
2k
views
Azure AD Connect Password Sync
Windows 2012 R2, fully updated/activated
Roles: ADDS, ADFS
Installed Azure AD Connect latest version (only software installed other than updates)
Other applicable services: Office 365 (Business ...
CommunityBot
- 1
9
votes
2
answers
2k
views
Delegate session management on RemoteApp 2012
We've built a rather large RemoteApp environment on 2012 R2, fully patched. Everything is working fine, so now comes the time to offshore and delegate tasks to the first line team.
We would like to ...
CommunityBot
- 1
9
votes
2
answers
312
views
Windows 7 contains duplicate, identical builtin print forms (Letter, Legal) but only one of the 2 successfully prints
I have a Windows 7 64-bit machine with a Lexmark E360dn printer. Whenever the user attempts to print anything, the printer defaults to "Letter" size, as expected. When the user clicks PRINT, the ...
CommunityBot
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9
votes
1
answer
2k
views
Is it possible to authenticate to Sonatype Nexus via ssh keys
Is it possible to authenticate to Sonatype Nexus via ssh keys or any other method that does not require user password in maven settings.xml?
I know there are user generated tokens in Sonatype Nexus ...
CommunityBot
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