Most active questions
61 questions from the last 7 days
9
votes
1
answer
852
views
DNS: What is missing from this SOA?
opensuse LEAP 15.6
linux v6.4.0-150600.23.47-default x86_64
BIND 9.18.33
I have tried various changes to the SOA record in named.conf. I do not understand what is missing or incorrect.
The only ...
- 93
3
votes
2
answers
88
views
In default Postfix "master.cf", why is "smtpd_reject_unlisted_recipient" set to "no" for submission?
In the default /etc/postfix/master.cf (for Ubuntu 24.04 LTS, at least), it has this commented out section for submission:
#submission inet n - y - - smtpd
# -o ...
- 173
-1
votes
1
answer
63
views
How to avoid file corruption after an electrical power failure [closed]
Sometimes files on our RHEL 7.9 host are zero after a power failure.
Is there is a way to avoid this issue?
Here is an example of the files after an OS power-off:
The following files exist under /opt/...
- 719
2
votes
2
answers
49
views
How common are non-graceful container shutdowns in Azure Container Apps (or Kubernetes) compared to graceful ones?
I'm building a distributed system running on Azure Container Apps, where graceful shutdowns of containers (e.g., to flush state, finalize jobs, etc.) are important for ensuring data integrity and ...
- 23
0
votes
1
answer
64
views
Which Linux commands report via E-mail? [closed]
Which daemons in a linux server will benefit from a working MTA?
cron may send a report with the results and/or the errors if MAILTO is defined to at least one valid email address.
smartd may report ...
1
vote
1
answer
68
views
Fedora CoreOS on Vagrant: transaction failed: Signature verification failed after provisioning
TL;DR
When provisioning a Fedora CoreOS Vagrant box, created using Packer and VirtualBox as provider, it automatically tries to update packages at startup. But, since after the first boot the ...
- 113
-2
votes
1
answer
67
views
Trouble logging in to Cisco 3560-E Switch [closed]
I recently purchased a used Cisco 3560-E switch. It seems to be working, but I can't login. I can get a prompt using SSH to the 10/100TX port (obviously DHCP is working), and I can also get a login ...
0
votes
1
answer
70
views
What are you planning to do when MySQL 8.0 goes end of life?
It seems a lot of people were running MySQL 5.7 for many years until it went end-of-life last year, and many have been on MySQL 8.0 series since 2019 which is going end-of-life next. What are people ...
- 1,049
-1
votes
0
answers
57
views
OpenVPN connection established, no error in logs, but no web pages work
I set up an OpenVPN on a Windows 2016 server and created the client.ovpn file. I installed OpenVPN app on an Android device and connected with the client.ovpn. Both the server and client look flawless,...
- 109
1
vote
1
answer
48
views
Postfix smtp_bind_address with additional IP addresses
I am running a Debian 12 server with two additional IP addresses that I want to use for sending emails through my SMTP server.
The main IP address of the server works perfectly for sending and ...
0
votes
1
answer
35
views
Is there any (significant) performance penalty to running multiple kubernetes pods (jobs) vs commands in container?
The Plot
We're setting up a Kubernetes enviornment using RedHat's OCP.
The application that we've been given from our provider in the form of Helm charts and container images, provides a pod that ...
- 749
0
votes
0
answers
57
views
Can you swap different RAID arrays in a single drive enclosure?
New, simplified version of my question:
Is there a way to retrieve the data on drives that have been removed from a RAID array in an enclosure that is now being used for a different RAID array? Or to ...
- 191
0
votes
1
answer
37
views
Is it possible to set client-aware quota on mounted NFS shares?
I have a Ubuntu 22.04 "computational" server in our lab that mounts a NFS share from a NAS (Synology DS1522+):
147.xxx.xxx.xxx:volume1/compserver /mnt/nas2 nfs rsize=8192,wsize=8192,timeo=14,...
- 169
0
votes
2
answers
39
views
Powershell Invoke-Sqlcmd Issue - DB in Single User Mode but can't restore DB
I've been trying to figure out what's going on and I'm at a loss. Hoping someone can help!
I have an Azure Pipeline that's using a self-hosted agent. The overall goal is to be able to restore SQL ...
- 11
-1
votes
0
answers
40
views
+50
Redis with SENTINEL as Nodeport accessable from outside the cluster
I'm trying to set up a Redis cluster that needs to be accesses from outside of the Kubernetes cluster for a while. I'm using the bitnami helm-chart. I configured Sentinel as NodePort and the NodePorts ...
- 49