Latest Server related questions

Score: 0
amicoderozer avatar
Add disk to QNap Raid 5
pk flag

I have a QNap TS-569 Pro configured with Raid 5 of 4 hard drives of 1 Terabyte each. It has 5 disk slots and I want to increase the size of the Raid of another Terabyte.

Reading the manual seem pretty easy operation, but I have a doubt. After adding the new hard drive to the raid, the QNap will rebuild the raid. During this time (usually it's pretty long), can I access the data? Or would it be un ...

Score: 1
maar avatar
Can't establish s2s VPN connection between AWS EC2 and OVH Public Cloud using WireGuard
gb flag

I can't establish VPN connection between AWS EC2 instance and OVH Public Cloud. In /var/log/syslog there's no errors - just some info about wg-quick operations like adding routing etc.

AWS EC2 instance:

  • OS: Ubuntu 20.04.2 LTS

  • Internal IP Address: ex. 10.0.22.22/16 ens4

  • Public IP Address: ex. 123.123.123.123/32 aws public interface

  • Port 12345/udp and 12345/tcp opened via Security group

  • Config ...

Score: 0
Rohit Nair avatar
Adding Virtual IP to ens224 after using ens192 as interface using keepalived
cn flag

I have two instances that can interact using internal IPs (ens192), for ex:

  • <server_1_internal>
  • <server_2_internal>

When I use ens192 as the interface, keepalived works as expected by assigning.
I checked the communication using

sudo tcpdump -i ens192 vrrp

but the specified virtual IP is added inside ens192, but I want the virtual IP to be added as ens224 (as public IP)

Is there any way  ...

Score: 1
agamil avatar
Restrict using Azure Service Principal by Humans
cn flag

We have some people who are using SPs manually (themselves) to run commands and deploy resources from CLI. We need to prevent that and allow only services to use SPs, not Humans. Is there any way to do so?

Score: 1
skapral avatar
Authorizing docker for TeamCity agent under Windows 10
ve flag

I have:

  • TeamCity CI
  • TeamCity agent, installed in Windows 10 as a Windows service
  • Some Java projects with integration tests, based on TestContainers framework.
  • Sonatype Nexus instance, configured as private docker registry

TestContainers based tests require docker to be available during project's build. All necessary images for the tests execution are located in Nexus. Which in turn means - in order to ...

Score: 1
Takeshinho avatar
SSH to 1 server from 2 different servers which have same hostname
cn flag

There is 2 servers for production and DR. Both servers are RHEL 7 and same spec.

Both have same host name and different IP address. We need to connect to same outside servers over SSH without password.

When we tried to connect from DR server, it showed warning with message as below.

Permission denied (publickey,gssapi-keyex,gssapi-with-mic,keyboard-interactive).
fromserver:user1$ ssh  user2@dest-ser ...
Score: -1
What is the limitation on what records a .com domain can have?
kw flag
ZAB

If I don't need a subdomain www, can a mydomain.com domain has an A record pointing directly to my server IP without any mediocre NS servers? How many A or NS records can a .com registry store and what minimum TTL it can have? The question is stupid but I can't find any document on this. It seems like a good practice to let *.gtld-servers.net domain servers who host .com domains registry answer IP di ...

Score: 0
RDS farm - RDS servers "Online - Access denied"
us flag

EDIT - This is on Microsoft Server 2016

I need some help - Our RDS farm contains... 2 rdsBrokers, 1 rdsLicense and 6 RDS servers.

I do have a problem with the permissions to the RDS server rds02-03-04-05 and rds06. But not for RDS01? As you guys see on the screenshot I see rds1 with CAPS and a IP address!

But how do I change the credentials?

I have tried to right-click and click Manage As... and then use  ...

Score: 0
Nabeel Ahmed avatar
I am trying to import firestore databse to big query using extension, however the sub collections are not getting populated, have tried multiple ways
au flag

I want to sync Big Query with Firestore Database. I have used the extension to import Firestore DB to Big Query however the subcollections are not getting exported to Big Query. I have even tried to make multiple instances of each subcollection that way I do have subcollection data but the data is disconnected from other tables. I want all the data in one table so whenever Firestore gets updated Big Que ...

Score: 0
user2306811 avatar
Nginx redirect rule to sub-directory
in flag

I have an old PHP application running with Apache, for now I need to switch to use Nginx

htaccess redirecting rule

php_value upload_max_filesize "5M"

AddType text/x-component .htc


RewriteEngine On
RewriteBase /brand/kit/summer-icecream/lacne

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !(/admin/)
RewriteCond %{REQUEST_URI} !(/setup/)
RewriteCon ...
Score: 2
SoCold avatar
Glusterfs on Synology NAS?
ck flag

I run a machine-learning cluster for my small business. The cluster consists of three Ubuntu servers. The 10TB /home directory, provided by Server 1, is shared across all servers and is almost full.

I'm thinking of adding additional storage. One idea is to buy a Synology NAS.

Say I buy a Synology of 20TB, how would I deal with the original 10TB from Server 1?

I feel it's best to combine Synology and ...

Score: 3
q-codes avatar
Setting CPU frequency to hardware minimum limit - will it harm the hardware?
br flag

I'm running on a Intel Celeron N4120. I can easily set the CPU governor for all 4 cores to powersave using:

for n in {0..3}
do
  sudo cpufreq-set -g powersave -c $n
done

Now, using cpufreq-info I know the hardware limits of my CPU is 800 MHz - 2.60 GHz. And, cpufreq-set allows me to set the highest and lowest clock speed.

My question is: if I always set the highest and lowest clock speed of my CPU to  ...

Score: 1
Darren Oakey avatar
Configure Cntlm to use no proxy if none are available in 2021
bb flag

Found an old question (8 years ago) about this re: cntlm - and the answer was it's "on the roadmap" - so wondering if anyone has driven there yet?

The problem is simple - on a corporate machine. When I connect to the vpn - I have to use the corporate proxy. When I am not connected to the vpn - I have to not use it. I want to be able to setup everything to talk to proxy in the way that it all wor ...

Score: 0
Brian Cook avatar
DKIM on subdomain hosted by domain.com, and auto-generated DKIM key
it flag

I've read a few different threads on here and have tried them out, but they don't seem to be working for me, so I'm hoping one of you awesome people can help me out. Forgive me, but this will be a little long.

I'm working with a non-profit who has our site DNS set up on domain.com, and our email is going through Google Workspace. Our regular email addresses all end in @ourdomain.org, and we hav ...

Score: 0
Adel M. avatar
Is there any risk to create an LVM group with two disks of different physical sector size?
cn flag

I have two hard drives of different physical sector size. I would like to create an LVM volume group with them, however, when I do so with vgcreate, I get a warning telling me that the two disks have different physical sector size. Is there something to be concerned about?

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