Latest Server related questions

Score: 1
Can you damage a POE camera by plugging it quickly into a PoE switch over and over
jp flag

Here is the context as I am a newbie at this - I got a free HP procurve 24 port POE switch from a nearby university. I have 12 cameras and long story short only 4 of the ports worked and the unit flashes stating their is a POE fault. I tested the unit by plugging in a live single camera connection into each port 1-24 rapidly to see which ports would show activity and which ports do not. Now that camera  ...

Score: 0
tocas619 avatar
Wordpress Slowness Behind GCP HTTP Load Balancer
in flag

I am hosting a Wordpress instance on GCP Compute Engine (using the Marketplace image). It works great when I directly access the instance IP, and the latency is around 20 ms.

However, in order to make the site secure, I am using a GCP HTTP load balancer in front of the instance. I have pointed my domain to the load balancer.

When I access the Wordpress through the load balancer (either HTTP or HTTPS ...

Score: -1
How can I see who has the permission to retrieve Active Directory data?
ar flag

I discovered sensitive data within my Active Directory groups in the "description" field. How can I see which users have read access to that data?

Score: 3
Root Loop avatar
How to remove NIS server role from all domain controllers before upgrading to Windows server 2019
ru flag

So we are currently have 4 2012R2 domain controllers with IDMU (Identity Management for Unix) and NIS server role installed. For NIS server role, one DC is in master mode, other 3 DCs are in subordinate mode.

We need to upgrade all Windows domain controllers to Server2019, meaning no IDMU and NIS will be supported any more, they have been removed since Windows Server 2016.

To be able to upgrade to S ...

Score: 1
housemd avatar
Ansible print debug message result variable
hk flag

I have a simple task that I cannot overcome.

I have a playbook that returns AWS EC2 instance configuration. I need to only print (display) private_ip_address.

Here my playbook

---
- hosts: local
  connection: local
  gather_facts: false
  become: yes
  become_method: enable

  tasks:

  - name: gather-info-ec2
    community.aws.ec2_instance_info:
      instance_ids:
        - i-XXXXXAAAAAA

    re ...
Score: 0
Praveen avatar
Expecting a password in the middle of script in RHEL
cn flag

I want to copy files from another server it's expecting a password to copy... Where as sshpass is working in Ubuntu, but in RHEL is there a way to pass the password in the script.

Score: 0
ubuntu upgrade went wrong: SSH connection closes after login - no access to terminal
vn flag

After an upgrade from Ubuntu 14.04 to 16.04 on my VPS done through SSH, SSH broke. do-release-upgrade always ended up with some package error, so I left it as it was. Client was left open, after ~12 hours later when I closed the connection, and wanted to reopen it, I realized that its broken: after a successful login the server terminates the connection with message Exit status 254

I did a ssh -vvv USERN ...

Score: 0
jamieburchell avatar
Why does setfacl turn on the group execute permission on files even when specifying X?
cn flag

I'm seeing strange behaviour with setfacl setting the eXecute bit on the group permission for files in some situations, confirmed on CentOS 7.

As user root with unmask 0002:

mkdir foo
touch foo/bar
setfacl -Rdm u:jburchell:rwX foo
setfacl -Rm u:jburchell:rwX foo
touch foo/baz
ls -l foo

-rw-rw-r--+ bar
-rw-rw-r--+ baz

Now, this is where I'm seeing odd behaviour:

setfacl -Rdm u:user2:rwX foo
setfa ...
Score: 0
DJR avatar
openstack selfservice network setup
in flag
DJR

I'm trying to configure the selfservice network on Openstack Wallaby, running on Ubuntu Server 20.04. I have followed the instructions for everything under the "Minimal deployment for Wallaby" section under "Install OpenStack services" on the docs.openstack.org site, and all services are running. I followed "Networking Option 2" when setting up Neutron.

For the physical network, I have a dedica ...

Score: 1
RogerTheShrubber avatar
Some emails show blank on Squirrelmail
mx flag

For some reason certain messages, only for some users, are showing up either partially or totally blank and are not selectable. The mail server is not self hosted (migadu.com), only Squirrelmail (v 1.4.22).

I've confirmed the messages themselves seem just fine and are perfectly fine when downloaded via another IMAP client. I'm guessing it's something specific about these messages, but I can't figure o ...

Score: 1
Patoshi パトシ avatar
Replace AuthUserFile with the password itself or reference a relative path to the folder
br flag

I have a PHP script that generates 100s of directories and in these directories contain CSV files. I'm able to protect these CSV files using AuthUserFile if it points to an absolute .htpasswd file, but I want to point to a custom generated .htpasswd in each of these directories.

  • Is there a way to replace: AuthUserFile with the password itself? I have it pregenerated in my PHP script already.
  • OR how can I ...
Score: 1
Requirements to achieve Jumbo Frame (mtu = 9000) with PXE Enabled networks
vn flag

What I should be looking for when trying to enable Jumbo Frames in networks that relies on PXE for server booting?

As far as I know I must have:

  • Network switch capable of MTU >= 9000
  • The ability to enable Jumbo Frames not only on the network interface on the switch but also on the Port Channels and VLANs
  • A compatible SO to deal with the higher MTU after the boot process with network bonding a ...
Score: 0
Marko Kitonjics avatar
Why can't I add t4g instances to my EKS cluster?
in flag

I have an EKS cluster with a nodegroup consisting of a couple of t3.small EC2 instances.

I want to switch to t4g.micro instances (double the amount of instances) because it will be cheaper. My approach was that I'll add a new nodegroup, consisting of t4g.micro instances and once they're up I'll just delete the t3.small nodegroup, but for some reason when I'm creating the new node group it doesn't ...

Score: 0
Razeth avatar
New SSSD Active Directory install does not allow logins
np flag

Just instaled SSSD using this guide to get active directory authentication working on Ubuntu 18.04.5 LTS.

It worked for our first server, but for whatever reason the one i'm trying to install on next will not allow domain users to login.

I'm new to this feature, so apologies if I'm not familiar with the logs that need to be provided. Please let me know what files I can provide if this is not helpful ...

Score: 0
phydeauxman avatar
Installing SSH Server on RHEL 8.4
uz flag

We have a Ubuntu Docker container that runs a SSH server that we are trying to port over to Red Hat 8.4. I am trying to install the openssh-server package using the dnf package manager via my Dockerfile. The package fails to install with the error Unable to find a match: openssh-server. Am I trying to install the wrong package? All of the documentation I have been able to find says that is the name of th ...

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.