Latest Server related questions

Score: 0
screendoor avatar
HTTP and websocket on the same port and domain behind reverse proxy
cn flag

I wanted to try Node-Red and have installed it on my Ubuntu server. This server runs an apache reverse proxy but I can't get it to work right. If I create a virtualhost for the HTTP connection I can access my Node-Red interface just fine, but it doesn't show me any activity such as online MQTT servers or debug messages. After some googling I found out this is because it also uses websockets and those ha ...

Score: 0
SBO avatar
Jenkinsfile - Build only if change in a specific subdirectory, how to manage post action
co flag

Basically, we're doing trunk development here, and got tons of services under the same directory.

I have a Jenkins job that is triggered through GitHub webhook, and that will do some actions only if there's a change in a specific directory of that repo :

pipeline {
        agent any
        stages {
                stage('Building') {
                when { changeset "subdirectory/*"}
Score: 0
Active Directory Users and Computers delegated user cannot create user accounts
im flag

Windows Server 2016 Active Directory under an Organizational Unit (OU), I created a user which was delegated control to be able to create, delete and manage users, and passwords.

I logged in with this user account, but the options is missing, for example NEW TAB where one can create new users, OU's, printers etc.

If I supply administrator credentials, still signed in as this same user, I can create  ...

Score: 1
Omroth avatar
Transfer 200GB from client using Google Cloud
us flag

I have a client who wishes to transfer 200GB of sensitive data to us. I would like them to upload this data to a GCloud bucket.

What is the best way to set up an external user to have access to a single new bucket and be able to upload?

Score: 0
Fab avatar
Open VSwitch - Connect two virtual networks through two physical networks
ru flag

I managed to setup the following network configuration :


  • HOST1 and HOST2 are two physical machines running Debian OS.
  • They have both two network cards (eth0 and eth1), each of them connected to two physically separated network and with different subnets.
  • OVS BR1 is an open vswitch bridge (one in each host)
  • VMx are virtual machines using vethvmx ovs port in the bridge of the host machine.
  • OVS BR1 are co ...
Score: 0
DanRan avatar
Nginx Pagespeed Module: What is "Ngx_pagespeed Slow write operation on file /usr/share/nginx/ngx_pagespeed_cache..." in error logs and how to fix?
mx flag

I am running an Ubuntu 20.04 LEMP server with the pagespeed module for Nginx in a business environment. In my /var/log/nginx/error.log I am seeing the following error:

[ngx_pagespeed] Slow write operation on file /usr/share/nginx/ngx_pagespeed_cache/v3/,3A/,,.tempqfKyZe: 61.512ms; configure SlowFileLatencyUs ...
Score: 0
jimbob avatar
Can I use OpenStack Rocky with a neoverse-n1?
in flag

Situation: For now, I'm stuck on OpenStack Rocky on Ubuntu 18.04.6 and I have some beefy Neoverse-n1 hardware (aarch64, 64-core, 1TB memory) to integrate. Can I accomplish this with on my current OS cluster, or is this futile?

# qemu-system-aarch64 --version
QEMU emulator version 2.11.1(Debian 1:2.11+dfsg-1ubuntu7.41)
Copyright (c) 2003-2017 Fabrice Bellard and the QEMU Project developers
# virsh --versi ...
Score: 0
wowinyou avatar
Issue with SoftEther VPN Server / Client
ru flag

We have to Locations, Germany and Sweden. We are Trying to Join AD Domains Together. The Software we are Using is SoftEther VPN Server and VPN Client. One is Windows Server 2012 Std (No R2) for Resources until September and the other is 2022 21H2. If we connect the Two Together. We receive a Timeout. I've Already Checked the Firewall. No Results. Image is from Germany (Main Location). Cascade is not an  ...

Score: 1
YuutaW Liang avatar
Linux netfilter NAT based on SNI?
cn flag

I am trying to do SNI proxying to a subnet on a router while keeping the src IP.

Background: I have a router doing DNAT to do port-forwarding for many application ports, and it is connected to a subnet (using a VPN actually) with different backends. For protocols that do NOT have something like HTTP Host or TLS SNI that can be routed to different IPs based on the request, I simply uses DNAT with  ...

Score: 0
seriously avatar
port forward with openVPN to access local machine remotely
cg flag

I have an OpenVPN server set up on my AWS Linux instance and I can successfully use the OpenVPN client to connect to the server using an .ovpn configuration file. My question is how can I set up port forwarding to access web servers hosted on my local machine using myAwsPublicIp:openedPort without having to set up forwarding rules on my router. I already tried opening the port on my AWS firewall r ...

Score: 0
leonardf2001 avatar
AWX SSH connection not establishing when running playbook
ae flag

I am trying to run my first playbook. Running AWX on CentOS8,trying to connect to remote device using SSH. On my remote device I have run ssh-genkey on my device and added the .pub key to authorized_keys file. I have also taken the .pub private key and created a credentials machine type and added the private key. Username and password are blank. I can only connect using root user to my remote device ent ...

Score: 0
RSchnell avatar
PROXMOX multiport NIC, multiple /24 private networks, multiple VMs; networking setup
jp flag

I am trying to get networking setup on my proxmox server and have the following setup:

vmbr0: gw:
bridged to eno1
2 VMs on this network:

vmbr1: gw: none
bridged to eno4
1 VM on this network

I can ping/surf from machines setup on the vmbr0 network.

I can ping the router from vmb ...

Score: 1
DanRan avatar
Nginx error logs: what does "pagespeed: rollback gzip, explicit configuration in /etc/nginx/nginx.conf:151" mean, and how can I fix it to use brotli?
mx flag

I am running an Ubuntu 20.04 LEMP server with the pagespeed and brotli module for Nginx. In my /var/log/nginx/error.log I am seeing the following error:

2023/02/23 07:34:49 [info] 1553667#1553667: [ngx_pagespeed] No threading detected. Own threads: 1 Rewrite, 1 Expensive Rewrite.
2023/02/23 07:34:49 [info] 1553667#1553667: pagespeed: rollback gzip, explicit configuration in /etc/nginx/nginx. ...
Score: 1
skrat avatar
How to manage app versions with AWS ElasticBeanstalk Docker platform
in flag

So I have successfully launched an app and an environment in AWS ElasticBeanstalk, using private image repository. I can build and push new versions of my app to the repository, and then run eb deploy to have it pull and update the EC2 instances. Great!

But how can I manage versions? What if I want to rollback to some previous version of the app? In the current setup there's only really one image in the ...

Score: 0
dj423 avatar
Cloud-init installing packages on Debian with contrib sources
mn flag

I need to install some zfs packages on Debian instances using cloud-init. One of the packages needs the contrib sources. I can get it to update the sources list, but the packages fail to install. If I remove the contrib source lists, some packages install, just not the ones that need contrib. Kind of a catch 22. Has anyone had success installing zfs and all prerequisites using cloud-init?

Here  ...

Score: 0
Gregor avatar
Nginx reverse proxy only specific sub directory and pass through everything else
km flag

I have development situation where i have a domain with multiple services:

On this service there are multiple project as subdirectories

  • <- landing page
  • <- rest api server
  • <- my app

So is it possible (and how) to setup nginx and hosts file to reverse proxy only ...

Score: 0
Kasper Peeters avatar
Normal traffic stalls, wireguard traffic through same server works fine
it flag

I have a weird networking issue, possibly due to problems at my ISP or with my router (an Eero 6), which manifests itself in the following way. On a machine X connected by wire to the router R, requests to certain web sites stall (sometimes the ssh handshake completes, sometimes not, but it always stops there).

This machine X also acts as a wireguard server, and the router R forwards connections  ...

Score: 1
Mojtaba avatar
Does Nginx aio work with linux?
cc flag

We have a VOD service and we are using nginx as webserver.

Our system doesn't use nginx-vod-module instead it just has all the small m4s files for a dash stream.

I came across this article(Thread Pools in NGINX Boost Performance 9x) by Valentin Bartenev.

It says that enabling aio in nginx might be a good solution for reducing io wait and load.

but it says:

A good example here is FreeBSD. Unfortuna ...

Score: -1
DanRan avatar
what the meaning of "logpath = %(nginx_error_log)s" in fail2ban jail log path?
mx flag

I am running fail2ban on Ubuntu 20.04 server, and am looking over some of the default jails. In [nginx-http-auth] the default log path shows as logpath = %(nginx_error_log)s. What exactly does %(nginx_error_log)s mean in fail2ban, and how does it articulate a log path for nginx logs in fail2ban? The same question goes for the default [sshd] jail log path and backend which has:

logpath = %(sshd_log)s ...
Score: 0
rubixibuc avatar
CSF has port 22 listed for TCP_IN, what is blocking certain IPs?
ar flag

I went through my whole csf config, and unless I'm missing something it's not treated or listed any differently than port 80, although it blocks all IPs that are not white listed. Port 80 will allow any IP address regardless.

Is blocking IPs for port 22 hardcoded into csf? I'm trying to understand. I've read that CSF blocks everything by default, but then how is port 80 open to every IP without s ...

Score: 0
404_username_not_found avatar
Impact of KrbTgtFullPAC Signature (CVE-2022-37967) patches
sd flag

I am a bit concerned about the Windows November 2022 patches that introduced signing of the PAC-Field in Kerberostickets.

  1. There is a RegKey(“KrbtgtFullPacSignature”) that, if set to auditmode, accept and log all unsigned tickets. Since January, we have enabled this key on all of our DCs, but nothing is logged on our DCs, even though we have some Server 2008 and Windows 7 systems, which should not ...
Score: 0
Sam avatar
How to ssh through the gitlab subdomain URL
ml flag

From this question I'd like to ask more of it

Solved the problem that I need to open the port on the cloud service. Now the next problem is how do I clone using the URL instead of the host machine IP. Example :

ssh git@x.x.x.x -p 6022

x.x.x.x is the hos ...

Score: 0
Nicolas Zozol avatar
GCP: Api Gateway failing to redirect to an url made from a private dns
pk flag

I have a vm instance at IP I created two url representing this service by two different ways, and I inject it in the Gateway configuration file. is a url created by service. Given an IP, you get a public url is a url made from a DNS Zone, with A -> The good IP

The gateway works perfectly with the public nip addres ...

Score: 1
Ydrab avatar
aws efs describe-access-points no filters?
iq flag

When I run

aws efs describe-access-points --query 'AccessPoints[*].[AccessPointId]' --output table

I get back 5 different ID's.

There does not appear to be any filter options like there are for other resources.

aws efs describe-access-points --filters "Name=AccessPoints.Name,Values=media" --query 'AccessPoints[*].[AccessPointId]' --output table

usage: aws [options] <command> <subcommand&gt ...
Score: 1
Arrow Root avatar
Why does Terraform want to fully delete aws_iam_policy_document?
sm flag

I don't understand why Terraform wants to remove the json policy. In other cases, when the data will be read during the apply, the plan shows the json policy being removed and added in the same plan, but it is not happening, Terraform is just removing it.

This is the policy:

data "aws_iam_policy_document" "my_policy" {
  statement {
    sid = "S3"
    effect = "Allow"
    actions = ["s3:*"]
    resour ...
Score: 0
Jiri B avatar
STONITH Block Device daemon (SBD) actions based on conditions
tg flag

Is there any detailed description how SBD reacts to various conditions/issues? sbd(8) is not very detailed I would say. I can't read the source which is here:

Score: 1
Y U K I M U R A avatar
AH01114: HTTP: failed to make connection to backend: localhost
zm flag

I know some of you might think that its a little bit off topic here, but am not sure whether its fault of server OR fault of my config file, so...

I made React.js project , but it needs server side rendering, So now I have to migrate from CRA to next.js . the problem: I have to upload my website on apache web server, from what I gathered from google, I need installed node.js and pm2 (latest versi ...

Score: 2
sushmee avatar
React App with Nginx reverse proxy not displaying /swagger ; /redoc
dk flag

So I've been trying to set up Swagger to work on /swagger/, it was working fine until we switched to a domain. I'm not that experienced with nginx and it's reverse proxy. I will share my settings, if anyone could help. It actually opens the page, but it's all white, same goes with /redoc/ (Redis).


events {
worker_connections 768;
multi_accept       on;

http {

large_client_header_buffers ...
Score: 1
King David avatar
HDP cluster + journal nodes get out of Sync
gb flag

we have HDP cluster version 2.6.5

when we look on name-node logs we can see the following warning

2023-02-20 15:56:37,731 INFO  namenode.FileJournalManager ( - Finalizing edits file /hadoop/hdfs/journal/hdfsha/current/edits_inprogress_0000000193594484455 -> /hadoop/hdfs/journal/hdfsha/current/edits_0000000193594484455-0000000193594600017
2023-02-20 ...
Score: 1
qian avatar
ssh server show message after login successful
se flag

I have one debian ssh server question , I want to display a message after successful login I have used motd, but the localhost will display it. I don’t want the local machine to display it. I only want to display it after a specific user successfully logs in to ssh.

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.