Latest Server related questions

Score: -1
user117974 avatar
DNS Sub domain delegation
pk flag

In my test environment I have 4 nameservers. DNS1 nameserver I want to be authoritative for domain.com, and delegate the subdomain sub.domain.com to the other 3 nameservers.

Client device is also connected directly to DNS1.

Here is my zone and config files:

root@DNS1:/etc/bind# more db.domain.com
$TTL    604800
@       IN      SOA     domain.com. admin.domain.com. (
                 75     ; Serial
      ...
Score: 0
Bjørnar Simonsen avatar
Client application unable to "fully" connect to virtual machine server, unless via VPN
co flag

This one has proven to be a tough nut for me to crack. Too tough. I think this could be a nice challenge for the gurus out there.

We have a physical server in a datacenter somewhere. It has a single NIC with a public IP. It runs Proxmox and has a few VMs on it, some of which are running some services with a web server front-end.

The VM's are segregated into various subnets via bridges (vmbr0, vmbr1  ...

Score: 0
ThurstonLevi avatar
second laravel site using apache on server is not being served
hk flag

I have a working laravel staging site on a DO server which uses ubuntu 22.04 and php 8.1. I am now moving it to production. I decided I'd serve this from the same server so i created a copy of the staging site on a new folder (~/live/mysite.com) I amended the .env file so it uses the APP_ENV = production and APP_URL is my new url. I also added a new apache conf file and enabled this. I then ran certbot  ...

Score: 0
Accidental CTO avatar
Monitor outgoing specific traffic
id flag

I have kinda of an idea but I want to consult. I was following this guide for finding out which php processes spawn outgoing brute force attacks. I found the culprits everything is working fine.

Now, how could I make an automatic system for all of this? Some kind of script that inserts the cron job, creates the other script, sets-up everything, finds the IP addresses with grep in the files and th ...

Score: 0
What do the SFS entries mean in X-Forefront-Antispam-Report?
ae flag

Is there any explanation to cryptic IDs of Microsoft Exchange SFS results in X-Forefront-Antispam-Report? I can't seem to find any documentation about these and in current format they are 100% useless to me. Meanwhile they seem to indicate quite a few reasons why the email went to spam.

While debugging why my email landed in spam folder in MS Exchange I noticed a longer list of different IDs there. I un ...

Score: 0
heavyguidence avatar
openstack compute node not registering
tr flag

I am trying to manually install Openstack Yoga in virtual environment (Rocky Linux 9). I am struggling to bring my compute node in the * Openstack hypervisor list*. Following this guide to install Openstack yoga.

I have carefully followed the instructions many times and have watched many videos on youtube too, but, no luck. I will really appreciate if someone can assist. Don't want to give up.

compute1

Score: 1
best_of_man avatar
How should I replace this line "provisioner: k8s.io/minikube-hostpath" for a "Kind" statefulset.yaml file?
pl flag

The following is a StatefulSet.yaml file for deploying Cassandra database on a minikube cluster. I am not sure what lines should be replaced if I want to use a Kind cluster instead of a minikube one, but I think one obvious option would be provisioner: k8s.io/minikube-hostpath.

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: cassandra
  labels:
    app: cassandra
spec:
  serviceName: cassandr ...
Score: 0
linuxtale avatar
Warning: atop.service changed on disk. Run 'systemctl daemon-reload' to reload units
us flag

I was trying to change the atop log interval on CentOS 7 cPanel server from 600 to 60 seconds and tried editing the file /etc/system/system/multi-user.target.wants/atop.service (Environment="LOGINTERVAL=60") and did service atop restart, then edited /usr/share/atop/atop.daily(LOGINTERVAL=60) and did service atop restart but couldn't see that bringing intended result.

So, I tried editing /usr/lib/systemd ...

Score: 0
bpoepen avatar
clonezilla does multiple runs?
fr flag

I'm trying to use clonezilla to clone my proxmox bootdisk from 1TB SSD to 4TB SSD. chosen expert mode and-r and -k1 option to have the new disk partitioned proportionally, but it's now doing the 4th partition the 3rd time. each run taks 1.5 hours at 11GB/minute. is it normal that clonezilla does multiple dd-runs for the partition? it does says that the filesystem is raw?

(using the latest live-is ...

Score: 0
debian wheezy has packet loss on ping
gb flag

There is an old debian wheezy server in my office. Any network operations involving this server are very slow, whether ssh, scp, or using its Apache web server. Pinging from inside this wheezy server to anything else on the local network has high packet loss (e.g. 50-80%), which explains why it is so slow.

Any ideas on what could be causing this? Not sure if this is correlation or causation but t ...

Score: 0
Benji avatar
accessing docker true a vpn and get error: 'failed to add IPv4 address bridge'
vi flag

Hello I'm trying to install a program (elabftw) with a docker container, on a Windows server (but running Ubuntu true WSL) that I have to access via my uni-vpn. When I try to start the program with: 'sudo elabctl start' it produces the error:

Info: using elabctl configuration file: using default values (no config file found) Info: using elabftw configuration file: /etc/elabftw.yml

[+] Running 0/1 â  ...

Score: 0
Is there any tool or any way to get all processes which are queued in windows?
ma flag

Is there any tool or any way to get all processes which are queued in windows? i have value of CPU Queue very high i have few apps running on server. the CPU Queue continue to reach sometimes 3000, while the overall cpu usage is very low, mostly less than 50%, but queue keeps increasing and i have no idea how to know which processes are queued and why. what could be any tool to check it? or its not poss ...

Score: 0
best_of_man avatar
What is the equivalent command of "minikube start --memory 5120 --cpus=4" for "Kind"?
pl flag

Here in Cassandra deployment instruction, it says:

Caution:

Minikube defaults to 2048MB of memory and 2 CPU. Running Minikube with the default resource configuration results in insufficient resource errors during this tutorial. To avoid these errors, start Minikube with the following settings:

minikube start --memory 5120 --cpus=4

But I don't know what is the equivalent command if I use Kind instead  ...

Score: 0
best_of_man avatar
When and How we should specify "clusterIP" inside the "service.yaml" file?
pl flag

I tried to deploy mysql and cassandra databases using kubernetes.io/docs instructions. In both of them, within the service.yaml files, they use clusterIP: None like following:

For cassandra:

apiVersion: v1
kind: Service
metadata:
  labels:
    app: cassandra
  name: cassandra
spec:
  ports:
  - port: 9042
  selector:
    app: cassandra
  clusterIP: None

For mysql:

apiVersion: v1
kind: Service
me ...
Score: 0
Guilherme Richter avatar
Certbot challenge using 443 instead of 80?
ve flag

Is it possible to do the challenge using another port? I read here that you can't replace port 80, but using an "alternative let's encrypt client" you can? (not clear at all)

I have one server in this network where the administrator is unable, or unwilling to do a port forward on port 80, but had no problem with 443. Any ideas?

Score: 0
best_of_man avatar
Why "Cassandra" uses "StatefulSet" instead of "Deploymdnt" file for "Kubernetes"?
pl flag

I am trying to deploy Cassandra on my local Kind cluster running on my Ubuntu 22.04 machine. The only instruction I found is this, that uses a StatefulSet for that. I am just wondering to know, isn't a Deployment file something newer? Why they didn't use Deployment file instead of StatefulSet? If it is better to use a Deployment file, can anybody help me to convert this StatefulSet to a Deployment  ...

Score: 0
derBobby avatar
Apache - authorize users either by client certificate or by ldap group membership
de flag

I use Apache as a reverse proxy to check the authorization of incoming requests. Until now only Kerberos was provided as authentication method for "/" and client certificates for "/api". See code below.

Now I need to have both methods (either, or) available for "/".

In words: A user/machine may access "/" if he:

  • either has a matching certificate (machine user)
  • or has a matching kereberos ticket an ...
Score: 0
inframan avatar
Advices on automating installation for Debian 11
cn flag

I'm currently trying to automate Debian 11 template creation through Packer for Nutanix environment and need some advices about preseeding/automating Debian installation.

First of all, after reading this bible https://www.debian.org/releases/stable/amd64/apbs02.fr.html I went into using preseed.cfg file. I started with the preseed.cfg file provided by Debian then adapt some stuff to fit my needs. Fin ...

Score: 0
Rich Kiroy avatar
Can the Maximum machine account password age be set differently for one OU on a domain controller
fi flag

In my organization, when we provision a computer one of the steps includes joining our domain. Typically we provision one pc at a time as the need comes up. I would like to get out of this habit and start provisioning groups of PC's as they are purchased once or twice a year. The problem with this is that the machines will sit for months without being used and ultimately loose the domain trust relations ...

Score: 0
Riker R avatar
Website loads slowly with www prefix, but https://[domain].com loads fine
bq flag

My organization switched over to networksolutions for domain hosting, and since then I've been having issues with slow load times.

When I enter the domain: https://www.martinsrestaurants.com the TTFB is very high (10+ seconds), regardless of a cleared or uncleared cache. The root https://martinsrestaurants.com works fine (< 2 seconds).

The site was constructed on wordpress, and there are some error ...

Score: -3
JDeLeon avatar
Active Directory, allow USB access using computer name
sj flag

I created a Group Policy Object (GPO) which contains configuration settings related to using USB devices. How do I apply the configuration settings contained in the GPO to a computer?

Score: 0
Guif If avatar
Unable to delete file in Centos
cn flag

I can't remove certain file in Linux. Here the example:

[root@HBL01 home]# ls -ltira index.php 
393591 -r--r--r-- 1 apache apache 14335 Nov 23  2021 index.php

[root@HBL01 home]# rm -rf index.php 

The file exists:

[root@HBL01 home]# ls -ltira index.php 
393591 -r--r--r-- 1 apache apache 14335 Nov 24  2021 index.php

[root@HBL01 home]# lsattr index.php
--------------e----- index.php

I try to write s ...

Score: 0
Michael Oryl avatar
Generate SHA256 Hash of a STRING from Windows Command Line
ca flag

While this is simple to do in the *nix world, I can't come up with a solution for generating a SHA256 hash of a string from the Windows command shell (not PowerShell) without installing a 3rd party application or batch file.

CertUtil works fine for generating a hash of a file, but I want the hash of a plain string so that it can be copy/pasted to be used elsewhere by some developers.

I'm looking for so ...

Score: 0
Artem Kuchin avatar
Exim peer IP in authenticator
it flag

I want to pass IP to Perl auth function. Everything works except i cannot get ip. I tried tons of vars and none of them contain peer ip (client's ip connecting to the server). Tried SSL/STARTTLS/insecure connections.

vars tried: $sending_ip_address $host_address $host $remote_address $sender_fullhost $sender_host_address

all are just empty in authenticator context. Any idea where to get clients ip i ...

Score: 0
Alin avatar
Add ssh to nginx configuration file
lr flag

Is there a possibility to use the nginx utility tool for redirecting requests for the services of my Docker-based application to the HTTP port 80? The implementation contains three services, one of that being a service that will use Ansible tool to deploy K8s clusters on different VMs using SSH. The problem would be the flow with which I can be able to use these SSH connections using my actual implement ...

Score: 0
Hagen von Eitzen avatar
DHCP load balancing added to production and existing clients
cn flag

I have to ask something I cannot find explained in e.g. https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-r2-and-2012/dn338976(v=ws.11) (refers to 2012R2, but that should not matter, my Google-fu failed me)

We have two Windows DHCP servers in our LAN in failover mode, Server A as master and Server B as hot standby. But now we have decided that it makes more sense to  ...

Score: 1
Miklos Losania avatar
Intermittent RDP disconnects
mu flag

We have a Windows Server 2016 VPS which we use to run company software on it. Users have to RDP to it, each one of them has its own separate session. At one of our sites, we have poor 4G internet quality, so the connection drops intermittently. After a couple of seconds, the RDP automatically reconnects, but it's very annoying during work. I've tried adjusting RDP group policy settings (automatic reconn ...

Score: 0
Biscuitz avatar
What does `netstat -y` on Windows do?
cn flag

From the help page of Windows netstat, I got this:

-y Displays the TCP connection template for all connections. Cannot be combined with the other options.

Google results are all same sentence from the help page. Does anyone know what is the meaning of "TCP connection template" here? The results with this option have a new field called Template, but the only values observed is "Internet" and  ...

Score: 0
eiskaltereistee avatar
Oracle Linux 8 - IPv6 Address disappear after kubespray installation (with NetworkManager)
vn flag

I have a strange problem after installing a kubernetes cluster with kubespray (2.19.1) on oracle linux 8 (latest packages and vagrant image).

I use this vagrant file (got a bit ugly from time to time because of playing around with different options).

VAGRANTFILE_API_VERSION = "2"

v4prefix = "192.168.59."
v6prefix = "fddd:0:0:1ff::"
$num_instances = 6
$vm_memory ||= 4096
$vm_cpus ||= 2

Vagrant.config ...
Score: 0
gynetik avatar
Nginx conflicting server name "" on 0.0.0.0:80, ignored
in flag

I cannot figure out how to resolve the following warning when running nginx -t:

2022/12/29 05:10:23 [warn] 24920#24920: conflicting server name "" on 0.0.0.0:80, ignored
2022/12/29 05:10:23 [warn] 24920#24920: conflicting server name "" on [::]:80, ignored

I have two sites running on my server.

  1. home.conf
server {
    listen 80 default_server;
    listen [::]:80 default_server;

    root /var/www/ ...

The Stunning Power of Questions

Much of an executive’s workday is spent asking others for information—requesting status updates from a team leader, for example, or questioning a counterpart in a tense negotiation. Yet unlike professionals such as litigators, journalists, and doctors, who are taught how to ask questions as an essential part of their training, few executives think of questioning as a skill that can be honed—or consider how their own answers to questions could make conversations more productive.

That’s a missed opportunity. Questioning is a uniquely powerful tool for unlocking value in organizations: It spurs learning and the exchange of ideas, it fuels innovation and performance improvement, it builds rapport and trust among team members. And it can mitigate business risk by uncovering unforeseen pitfalls and hazards.

For some people, questioning comes easily. Their natural inquisitiveness, emotional intelligence, and ability to read people put the ideal question on the tip of their tongue. But most of us don’t ask enough questions, nor do we pose our inquiries in an optimal way.

The good news is that by asking questions, we naturally improve our emotional intelligence, which in turn makes us better questioners—a virtuous cycle. In this article, we draw on insights from behavioral science research to explore how the way we frame questions and choose to answer our counterparts can influence the outcome of conversations. We offer guidance for choosing the best type, tone, sequence, and framing of questions and for deciding what and how much information to share to reap the most benefit from our interactions, not just for ourselves but for our organizations.