Latest Server related questions

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 ...

Score: 0
client ip behind nginx reverse proxy
in flag

I'm running an nginx reverse proxy to be able to run multiple servers behind my firewall. I noticed on my (Kerio) mail server the error log is filled with "failed login from < local ip of nginx >" and I was wondering how can I set it so I get the remote IP of the person/bot that is trying to login so I might use that information for auto blocking those addresses (for example)?

This is my cu ...

Score: 0
Aeternal avatar
Linux Networking - How to dynamically filter network packets within short time range
cl flag

I am trying to find a solution to dynamically filter network packets with strict timing constraints and based on a IP list on a Linux Operating System

I cannot install additional software of modify kernel or libraries to add modules to iptables for example

I have an equipment that receive too much network packet and I need to find a way to filter network packets dynamically with a 200ms cycle.

For exam ...

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